20071841 Ver 1_401 Application_20071007

CWS]
October 26, 2007
Ms. Loretta Beckwith
U.S. Army Corps. of Engineers
151 Patton Avenue, Room 208
Asheville, NC 28801
Subject: Section 404 Individual Permit Application
Asheville Regional Airport Expansion
Fletcher, North Carolina
CWS Project No. 2007-1889
The Asheville Regional Airport Expansion site is located adjacent to Interstate 26, on existing Airport
Authority property in Fletcher, North Carolina (Sheets 1 and 2, enclosed). The purpose of this project
is to develop approximately 33 acres into a mixed general aviation (GA) component for the airport
which will include hanger space, offices and opportunity for the transfer and transport of goods and
materials between groundside, at a four lane interstate highway, and airside, from the existing
commercial grade airstrip, to serve Buncombe County and the Asheville region. Secondarily, the
proposed fill at the facility will be fly ash produced as a byproduct from coal fired energy plants. The
fly ash will be placed on geo-textile material and will be covered by 24" of natural soil cap. The
current fly ash landfill is nearing capacity and it would need to expand or find a new facility in order
to accommodate this fly ash. With the airport placing the material, the existing landfill will be able to
gain approx. 8-10 years of storage capacity.
Applicant Name: Asheville Regional Airport Authority, David N. Edwards, Jr. - Airport Director
Mailing Address: 61 Terminal Dr., Suite 1, Fletcher, NC 28732
Phone Number of Owner/Applicant: 828-684-2226
Street Address of Project: Terminal Drive, Fletcher, NC
Waterway: UT's to French Broad River
Basin: French Broad (HU# 06010105)
City: Asheville
County: Buncombe
Decimal Degree Coordinate Location of Project Site: N35.44612°, W82.54223°
USGS Quadrangle Name: Skyland, North Carolina, 1991
Current Land Use
The current land use for the project area is a commercial service airport. Dominant vegetation within
the project area consists of red maple (Acer rubrum), ironwood (Carpinus caroliniana), tag alder
(Alnus serrulata), black gum (Nyssa sylvatica), black willow (Salix nigra), silky dogwood (Cornus
amomum), soft stem rush (Juncus effusus), false nettle (Boehmeria cylindrica), jewel weed (Impatiens
capensis), cinnamon fern (Osmunda cinnamomea), Christmas fern (Polystichum acrostichoides), and
various sedges (Carex spp.) (Sheet 4, enclosed). According to the Soil Survey of Buncombe County',
on-site soils consist of Tate Loam, 2-8% slopes (TaB), Hayesville Loam, 15-25 % slopes (HyE),
Hayesville-Urban Land Complex, 2-15 % slopes and Braddock-Urban Land Complex, 2-15 % slopes
(Sheet 3, enclosed).
1 United States Department of Agriculture, Web Soil Survey. Soil Survey of Buncombe County, North Carolina.
NORTH CAROLINA • SOUTH CAROLINA • NEW YORK
550 E WESTINGHOUSE BLVD.
CHARLOTTE, NC 28273
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DENR - WATER QUALITY
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October 26, 2007
Ms. Loretta Beckwith
Page 2 of 9
National Wetlands Inventory
The National Wetlands Inventory maps did not show any part of the project site mapped as wetlands
(Sheet 5, enclosed).
FEMA Floodplain
No portion of the project area or the proposed development is located within a FEMA regulated
floodplain (Sheet 6, enclosed), therefore no FEMA floodplain will be impacted by the project
activities.
Buncombe County Zoning
The existing site and proposed expansion are zoned for industrial use (Sheet 7, enclosed). No portion
of the site will be rezoned for the purpose of this project.
Jurisdictional Delineation
On June 13, 2007 CWS's Ron Johnson, PWS, Matt Jenkins, WPIT, Paul Bright, and Anthony Nardo
delineated (flagged in the field) and classified on-site jurisdictional waters of the U.S. using the U.S.
Army Corps of Engineers (USACE) - Routine On-Site Determination Method. Jurisdictional waters
of the U.S. were classified according to recent North Carolina Division of Water Quality (NCDWQ)2
and USACE guidance. NCDWQ Stream Classification Forms and USACE Stream Quality
Assessment Worksheets representative of Streams A - C are enclosed (SCP 1 - SCP5). On-Site
waters were determined to be jurisdictional according to the EPA/USACE Approved Jurisdictional
Determination Forms.
The results of the on-site field investigation indicate that there are three jurisdictional stream channels
(Streams A - C) and three jurisdictional wetland areas (Wetlands AA - CC) located within the project
area (Sheet 8, enclosed). Routine On-Site Data Forms representative of Wetlands AA - CC as well as
non jurisdictional upland areas have been enclosed (DP 1 - DP4). On-Site jurisdictional waters of the
U.S. include unnamed tributaries to French Broad River. French Broad River is within the Upper
French Broad basin (HU# 06010105) 3 and is classified as "B;Tr" waters by the NCDWQ. On-Site
jurisdictional waters of the U.S. were surveyed by CWS using a sub-meter GPS unit and total
approximately 0.465 acre (20,255 square feet). Linear footage and acreage of on-site jurisdictional
waters are summarized in Table 1.
Table 1. Summary of On-Site Jurisdictional Waters
Jurisdiction Classification Approximate Length (1f) Approximate Acreage
Stream A Perennial 1540 0.243
Stream B Unimportant Intermittent 92 0.005
Stream C Perennial 114 0.008
Stream Subtotal: 1746 0.256
Wetland AA Herbaceous 0.028
Wetland BB Forested 0.009
Wetland CC Forested 0.172
Wetland Subtotal: 0.209
On-Site Total: 1746 0.465
2 North Carolina Division of Water Quality, 1999. Stream Classification Method. Version 2.0.
3 "HU#" is the Hydrologic Unit Code. U.S. Geological Survey, 1974. Hydrologic Unit Map, State of North Carolina.
October 26, 2007
Ms. Loretta Beckwith
Page 3 of 9
Perennial Streams
Stream A flows through the middle portion of the property and is approximately 1,540 linear feet in
length (Sheet 8, enclosed). This channel exhibited average ordinary high water widths of 4-5 feet,
perennial flow, moderate sinuosity, and substrate consisting of fine sand to small cobbles. Biological
sampling of Stream A resulted in a weak presence of crayfish and amphibians, and a weak presence of
benthic macroinvertebrates. USACE Stream Quality Assessment scores for Perennial Stream A
ranged from 49 to 53 out of a possible 100 points and ranged from 33.5 to 36.5 out of 71 possible
points on the NCDWQ Stream Classification Form, indicating perennial status (SCP1 through SCP3,
enclosed). Photographs of Perennial Stream A are enclosed as Photographs A and B.
Stream C flows east for approximately 114 linear feet until its confluence with Perennial Stream A
(Sheet 8, enclosed). This channel exhibited an average ordinary high water width of 1-2 feet,
perennial flow, weak sinuosity, and substrate consisting of silt to large gravel. Perennial Stream C
scored 55 out of a possible 100 points on the USACE Stream Quality Assessment Form and 30 out of
71 possible points on the NCDWQ Stream Classification Form, indicating intermittent status (SCP5,
enclosed). A Photograph of Stream C is enclosed as Photograph F.
Intermittent Streams
Stream B flows north and is approximately 92 linear feet in length (Sheet 8, enclosed). This channel
exhibited average ordinary high water widths of 3-4 feet, weak ground water flow, and substrate
consisting of silt to large gravel. Unimportant Intermittent Stream B scored 27 out of a possible 100
points on the USACE Stream Quality Assessment Form and 23.5 out of 71 possible points on the
NCDWQ Stream Classification Form, indicating intermittent status (SCP4, enclosed). A photograph
of Unimportant Intermittent Stream B is enclosed as Photograph G.
Wetlands
Wetland AA is located in the central portion of the property, adjacent to Stream A and is
approximately 0.028 acre in size (Sheet 8, enclosed). Dominant vegetation within this area includes
silky dogwood (Cornus amomum), Christmas fern (Polystichum acrostichoides), cinnamon fern
(Osmunda cinnamomea), common rush (Juncus effuses), and jewelweed (Impatiens capensis). This
area exhibited low chroma soils (2.5Y 4/1), few prominent mottles (5YR 4/6), drainage patterns, and
saturation within the upper 12 inches of the soil profile. A Routine On-Site Determination Form
representative of Wetland AA is enclosed (DP2).
Wetland BB is located is located downstream of Perennial Stream A and Unimportant Intermittent
Stream B (Sheet 8, enclosed). This forested linear wetland is approximately 0.009 acre is size.
Dominant vegetation within this area includes red maple (Acer rubrum), ironwood (Carpinus
caroliniana), hazel alder (Alms serrulata), common rush (Juncus effuses), and various sedges (Carex
spp.). This area exhibited low chroma soils (2.5Y 4/1), few distinct mottles (5YR 4/6), drainage
patterns, and saturation within the upper 12 inches of the soil profile. A Routine On-Site
Determination Form representative of Wetland BB is enclosed (DP3). A Photograph of Wetland BB is
enclosed as Photographs E.
Wetland CC is located at the downstream portion of Perennial Stream A (Sheet 8, enclosed). This
forested wetland area is approximately 0.172 acre is size. Dominant vegetation within this area
includes black gum (Nyssa sylvatica), black willow (Salix nigra), ironwood (Carpinus caroliniana),
silky dogwood (Cornus amomum), false nettle (Boehmeria cylindrical), common rush (Juncus
effuses), jewelweed (Impatiens capensis), and various sedges (Carex spp.). This area exhibited low
chroma soils (IOYR 4/1), inundation to 2 inches, drainage patterns, and saturation within the upper 12
October 26, 2007
Ms. Loretta Beckwith
Page 4 of 9
inches of the soil profile. A Routine On-Site Determination Form representative of Wetland CC is
enclosed (DP4). Photographs of Wetland CC are enclosed as Photographs C and D. A Routine On-
Site Determination Form representative of on-site non jurisdictional upland areas is also enclosed
(DP 1).
Agency Correspondence
Cultural Resources
A letter was forwarded to the State Historic Preservation Office (SHPO) on June 5, 2007 to determine
the presence of any areas of architectural, historic, or archaeological significance that would be
affected by the project. In a letter dated July 13, 2007, the SHPO stated that there "are no known
recorded archaeological sites within the project boundaries" (enclosed).
Protected Species
A letter was forwarded to the North Carolina Natural Heritage Program (NCNHP) on
June 5, 2007 to determine the presence of any federally-listed, candidate endangered, threatened
species or critical habitat located within the project area. In a letter dated June 13, 2007, the NCNHP
stated there "is no record of rare species, significant natural communities, or significant natural
heritage areas at the site, nor within 1/z mile of the project area" (enclosed).
Protected Species
A protected species survey was conducted to determine the potential for the occurrence of animal and
plant species formally proposed or listed as endangered or threatened by current Federal regulations
[Federal Endangered Species Act of 1973 (16 U.S.C. 1531 et seq.)] within the proposed project area.
The review consisted of a literature and records search, and a pedestrian survey performed by CWS's
Matt Jenkins, WPIT, and Paul Bright. CWS consulted the North Carolina Natural Heritage Program's
(NCNHP) Natural Element Occurrence Search Page for Buncombe Countyl5l. The data contained in
this database was last updated March 1, 2007. According to the NCNHP database, there are four
Federally Endangered or Threatened species listed for Buncombe County. The Endangered species
for Buncombe County are the Carolina northern flying squirrel (Glaucomys sabrinus coloratus), gray
bat (Myotis grisescens), spreading avens (Geum radiatum) and the rock gnome lichen (Gymnoderma
lineare).
Plant species observed during the pedestrian survey were identified to species or to the lowest
taxonomic level necessary to determine if the observed specimen was a protected species. Plant
species identified in this report follow taxonomy described by Radford, et a1.161 The following section
describes the potential on-site habitats.
On-Site Habitat
The proposed project area is comprised of cleared mixed hardwood forest and old successional field,
(Sheet 4, enclosed). Dominant vegetation within the mixed hardwood canopy includes red maple
(acer rubrum), black cherry (Prunus serotina), tuliptree (Liriodendron tulipifera), and white oak
(Quercus alba),. Understory vegetation within this area includes poison ivy (Toxicodendron
radicans), American holly (Ilex opaca), cinnamon fern (Osmunda cinnamomea), green catbriar
5 The NCNHP Element Occurrence Search Page, found online at http://207.4.179.50/nhp/county.html, accessed on June 12, 2007.
6 Radford, et al. 1968. Manual of the Vascular Flora of the Carolinas. The University of North Carolina Press, Chapel Hill, North Carolina.
1183 pp.
October 26, 2007
Ms. Loretta Beckwith
Page 5 of 9
(Smilax rotundifolia), and black raspberry (Rubus occidentalis). Dominant vegetation within the early
successional fields includes tuliptree (Liriodendron tulipifera), white oak (Quercus alba), green
catbriar (Smilax rotundifolia), black raspberry (Rubus occidentalis), Aster (Aster spp.) and various
grasses (Festuca spp.).
Table 1. Federally-Listed Species Observed in Buncombe Countv, North Carolina
Major Group Scientific Name Common Name Federal
Status Habitat
Glaucomys sabrinus Carolina Northern The ecotone between coniferous and
Vertebrate oloratus Flying Squirrel E northern hardwood forests.
Vertebrate yotis grisescens Gray Bat E Caves
High elevation cliffs, outcrops, and
icot Geum radiatum Spreading Avens E steep slopes exposed to full sun
On rocks in areas of high humidity at
Lichen Gymnoderma lineare Rock Gnome Lichen E high elevations
Federal Status Codes
Code Status Definition
A taxon in danger of extinction throughout all or a
E Endangered significant onion of its range.
A taxon likely to become an endangered species within the
T Threatened foreseeable future throughout all or a significant portion of
its range.
A taxon that is formally proposed to be listed as
P Proposed Endangered or Threatened.
A taxon under consideration for which there is sufficient
C Candidate information to support listing.
PD Pro osed De-listed A taxon that is proposed for de-listing
Federal Species of A species under consideration for listing, for which there is
FSC Concern insufficient information to support listing at this time
Carolina Northern Flying Squirrel (Glaucomys sabrinus coloratus)
The Carolina northern flying squirrel is found primarily in the transition zone between coniferous and
northern hardwood forests. Both forest types are used for food collection, while the northern
hardwood forest is used for nesting. Individuals often occupy tree cavities and woodpecker holes, but
will also construct nests. Carolina northern flying squirrels are very rare and occur in isolated
communities in North Carolina and Tennessee. CWS did not observe any potential habitat during the
pedestrian survey and no Carolina northern flying squirrels were observed on the day of the field
investigation.
Gray Bat (Myotis grisescens)
The gray bat is a cave dweller found primarily in Arkansas, Missouri, Tennessee, and Alabama, with a
few colonies in adjacent states. They rely on different types of caves for hibernating and maternity.
The hibernation caves are generally cooler than the maternity caves. Male gray bats and non-
reproductive females form bachelor colonies that aren't as restrictive on their nesting sites. CWS did
not observe any potential habitat during the pedestrian survey and no gray bats were observed on the
day of the field investigation.
October 26, 2007
Ms. Loretta Beckwith
Page 6 of 9
Spreading Avens (Geum radiatum)
Spreading avens is an endemic in the rose family that occupies high elevation cliffs, outcrops and
steep slopes that are exposed to full sun in western North Carolina and Tennessee. The habitat is
usually found next to red spruce dominated coniferous forests. They are threatened by trampling,
development and air pollution. CWS did not observe any potential habitat during the pedestrian
survey and no spreading avens were observed on the day of the field investigation.
Rock Gnome Lichen (Gymnoderma lineare)
The rock gnome lichen is part of the reindeer moss family and is found on rocks in areas of high
humidity. These sites can occur at either high elevation or in deep river gorges at lower elevations.
Threats to rock gnome lichen are development, air pollution, collection, and coniferous forest decline.
CWS did not observe any potential habitat during the pedestrian survey and no rock gnome lichens
were observed on the day of the field investigation.
Biological conclusion: Given the results of the literature search and initial field investigation, it is
unlikely that the proposed project will impact the Carolina northern flying squirrel, gray bat,
spreading avens or the rock gnome lichen or their potential habitats.
Purpose and Need for the Project
The north expansion of the Asheville Regional Airport will provide for the surface area improvements
necessary to accommodate ground side and air side general aviation (GA) purposes which have been
identified as essential to the growing economic demand of the region. The facility must have both
direct access to commercial airstrip and ground side access to four lane interstate. Additionally, the
project will provide an alternate disposal site for the placement of fly ash byproduct from energy
producing coal fired power plants. The current fly ash landfill is nearing capacity and it would need
to expand or find a new facility in order to accommodate this fly ash. With the airport placing the
material, the existing landfill will be able to gain approx. 8-10 years of storage capacity.
The Asheville Regional Airport has a need to expand its development to meet the increased demand in
the aviation industry. Due to the limited real estate for aviation use with access to both taxiway and
runway facilities, and the boundary of the French Broad River, Interstate 26, and NC Route 280, this
area is the airports most economically feasible land to develop for aviation use. This project will
satisfy a portion of the publicly approved 20 year master plan for the airport. It is the purpose of this
project to provide service to economic development needs of Asheville Region and Buncombe County
by providing airside access to airstrip and groundside access to four lane interstate with approximately
450,000 square feet of new ramp, apron and taxiway; approximately 200,000 new square feet of
building and approximately 150,000 new square feet of roadway and parking. The project has been
designed to satisfy the safety concerns of the FAA. This site is intended for disposal of fly ash as
alternative to utilizing valuable landfill space. State permits have already been obtained for placement
of fly ash.
Avoidance and Minimization
The expansion of the existing airport development to the north occurs on a site which is bisected by a
perennial stream. Development to one side or the other of the stream would not yield sufficient
development area to satisfy the project purpose and need. The stream cannot be relocated to the east
due to shallow bedrock to the ground surface and topographic constraints. The stream cannot be
October 26, 2007
Ms. Loretta Beckwith
Page 7 of 9
relocated to the west due to FAA restrictions on open water and forested buffers adjacent to runways
due to safety issues.
Minimization of impacts to downstream aquatic resources will be accomplished by filling the area so
that grade directs stormwater flows away from surface waters and into off-line stormwater BMP
treatment measures.
Alternatives Analysis
The ARV has reviewed alternatives for the development of the expansion area including the
following:
Alternative 1 - No Build Alternative
The No-Build Alternative will result in no impacts to jurisdictional streams or wetlands but does not
satisfy project purpose and need to provide airside access to airstrip and groundside access to four
lane interstate with approximately 450,000 square feet of new ramp, apron and taxiway;
approximately 200,000 new square feet of building and approximately 150,000 new square feet of
roadway and parking. This alternative does not provide for disposal of fly ash as alternative to
utilizing valuable landfill space.
Alternative 2 - Off-Site Development Alternative
The Off-Site Development Alternative will result in no impacts to jurisdictional streams or wetlands
on this site but does not satisfy project purpose and need to provide airside access to airstrip and
groundside access to four lane interstate with approximately 450,000 square feet of new ramp, apron
and taxiway; approximately 200,000 new square feet of building and approximately 150,000 new
square feet of roadway and parking. This alternative does not provide for disposal of fly ash as
alternative to utilizing valuable landfill space.
Alternative 3 - West Side Development Alternative
The West Side Development Alternative will result in no impacts to jurisdictional streams or wetlands
but does not satisfy project purpose and need since it does not have direct access to four lane interstate
and terminal. This alternative does not provide for disposal of fly ash as alternative to utilizing
valuable landfill space.
Alternative 4 - South Side Development Alternative
The South Side Development Alternative will result in no impacts to jurisdictional streams or
wetlands but does not satisfy project purpose and need since it does not enough land area adjacent to
both airstrip and interstate to provide the necessary program elements. This alternative does not
provide for disposal of fly ash as alternative to utilizing valuable landfill space.
Alternative 5 - East Side Development Alternative
The East Side Development Alternative will result in no impacts to jurisdictional streams or wetlands
but does not satisfy project purpose and need since it is not adjacent to airstrip and does not enough
land area to provide the necessary program elements. This alternative does not provide for disposal of
fly ash as alternative to utilizing valuable landfill space.
Alternative 6 - Reduced Scope and Scale Alternative
The Reduced Scope and Scale Alternative will result in fewer impacts to jurisdictional streams or
wetlands but does not satisfy project purpose and need to provide airside access to airstrip and
groundside access to four lane interstate with approximately 450,000 square feet of new ramp, apron
and taxiway; approximately 200,000 new square feet of building and approximately 150,000 new
square feet of roadway and parking. Reducing the scope and scale would render the project not
economically feasible. This alternative provides less area for disposal of fly ash as alternative to
October 26, 2007
Ms. Loretta Beckwith
Page 8 of 9
utilizing valuable landfill space.
Alternative 7 - On-Site Northern Development Alternative (Preferred Alternative)
The On-Site Northern Development Alternative will result in unavoidable impacts to jurisdictional
streams or wetlands on this site but it does satisfy project purpose and need to provide airside access
to airstrip and groundside access to four lane interstate with approximately 450,000 square feet of new
ramp, apron and taxiway; approximately 200,000 new square feet of building and approximately
150,000 new square feet of roadway and parking. This alternative does provide for disposal of fly ash
as alternative to utilizing valuable landfill space. Negative effects to downstream water quality and
important aquatic functions and values will be prevented through appropriate erosion and sediment
control methods during construction and the incorporation of permanent stormwater management
measures designed to remove Total Suspended Solids (TSS) before they reach downstream receiving
waters.
Proposed Impacts to Jurisdictional Waters
Unavoidable impacts to Perennial Streams will total approximately 1,640 linear feet and impacts to
wetland areas will total 0.209 acre (Sheets 10-14, enclosed). Impacts are due to grading activities
associated with the expansion of the Asheville Regional Airport North General Expansion Project.
The main drainage will be piped with 1,175 liner feet of 60" Reinforced Concrete Pipe (RCP). Fly
ash will be used to backfill the area. Progress Energy holds the non-site specific permit for the
disposal of the fly ash. The fly ash will be capped with a 24 inch top soil cap. A Typical Cross
Section has been included as Sheet 11. On behalf of The Asheville Regional Airport, CWS is
submitting a Section 404 Individual Permit Application with attachments (enclosed).
Compensatory Mitigation
Applicant proposes a donation to the NC Ecosystem Enhancement Program as mitigation for all
proposed impacts to streams and wetlands. The AVL is proposing a donation of $401,800 for impacts
to 1,640 linear feet of perennial stream at a 1:1 ratio. The AVL is proposing a $7,737.75 for impacts
to 0.25 acre of riparian wetland area at a 1:1 ratio. Total donation to the EEP will be $409,537.75. A
request has been forwarded to NCEEP to ensure the credits will be available.
Stormwater Management
A Stormwater Management Plan has been designed to minimize impacts to downstream aquatic
resources. The plan has been designed according to NC Division of Water Quality Standard. A copy
of the Post-Development Drainage Plan has been included as Sheets 15-17. Stormwater calculations to
justify the design have been included.
October 26, 2007
Ms. Loretta Beckwith
Page 9 of 9
Please do not hesitate to contact me at 704-527-1177 or through email at [e-mail] should
you have any questions or comments regarding these findings.
Ron G. nson, PWS Craig R. Wyant, RLA
Senior cientist Senior Resource Analyst
Enclosures: Sheet 1 of 17. Vicinity Map
Sheet 2 of 17. USGS 7.5' Skyland, NC Topographic Quadrangle
Sheet 3 of 17. Buncombe County Soil Survey
Sheet 4 of 17. Aerial Photograph
Sheet 5 of 17. National Wetlands Inventory Map
Sheet 6 of 17. FEMA Floodplain Map
Sheet 7 of 17. Buncombe County Zoning Map
Sheet 8 of 17. Wetland Boundary Survey
Sheet 9 of 17. Pre-Developed Drainage Map
Sheet 10 of 17. Mass Grading Plan
Sheet 11 of 17. Typical Cross Section
Sheet 12 of 17. Final Development Plan Overview
Sheet 13 of 17. Post-Developed Grading Plan A
Sheet 14 of 17. Post-Developed Grading Plan B
Sheet 15 of 17. Post-Developed Drainage Map - Overall
Sheet 16 of 17. Post-Developed Drainage Map A
Sheet 17 of 17. Post-Developed Drainage Map B
Section 404 Individual Permit Application (ENG FORM 4345)
Request for Jurisdictional Determination Form
Agent Certification of Authorization Form
USACE Routine Wetland Determination Data Forms (DP 1 - DP4)
NCDWQ Stream Classification Forms (SCP1 - SCP5)
USACE Stream Quality Assessment Worksheets (SCPI - SCP5)
Approved Jurisdictional Determination Forms
Representative Photographs (A - H)
Agency Correspondence
Letter from Asheville Chamber of Commerce
Adjoining Property Owners
NCDWQ Stormwater Calculations
cc: Ms. Cyndi Karoly, NCDWQ
Mr. Gary Bouthillier, WK Dickson
Mr. David N. Edwards, Jr. - Airport Director, AVL
Asheville Regional Airport Project
Individual Permit Application Project No. 2007-1889
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Image Courtesy of the U.S. Geological Survey
7.5 Minute Topographic Map Series, Skyland Quadrangle, North Carolina, dated 1991
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Sheet 1 of 17
Asheville Regional Airport Project
Individual Permit Application Protect No. 2007-1889
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7.5 Minute Topographic Map Series, Skyland Quadrangle, North Carolina, dated 1991.
Approximate Scale 1" = 2000' ?t tD - WATER GUALITY
s eet 2 of 17
Image Courtesy of the U.S. Geological Survey pol
Asheville Regional Airport Project
Individual Permit Application Project No. 2007-1889
Soil Survey Courtesy of Buncombe County Online GIS
Soil Survey of Buncombe County, North Carolina.
Sheet 3 of 17
Asheville Regional Airport Project
Individual Permit Application Proiect No. 2007-1889
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This map is a user generated static output from an Internet mapping site and is for general reference only. Data layers that appear on this map may or may not be
accurate, current, or otherwise reliable. THIS MAP IS NOT TO BE USED FOR NAVIGATION.
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Sheet 5 of 17

Asheville Regional Airport Project
Individual Permit Application Project No. 2007-1889
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APPROXIMATE SCALE
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wM1en Placing ma orders: the COMMUN- NUMBER above show
sh-d ba used on msurenc applications I., the a.bya
amm 1.
Asheville z6
?
I MA
P NUMBER
370032 37021CO458 C
EFFECTIVE DATE:
MAY 6,1996
r
III ?? ?? Federal Emergency Management Agency
is is an official copy of a portion of the above referenced flood map. It
is extracted using F-MIT On-Line. This map does not reflect changes
amendments which may have been made subsequent to the date on the
e block. For the latest product information about National Flood Insurance
Dgram flood maps check the FEMA Flood Map Store at www.msc.fema.aov
FEMA Flood Map
Image Courtesy of the Federal Emergency Management Agency, dated 1996.
Sheet 6 of 17
Asheville Regional Airport Project
Individual Permit Application Project No. 2007-1889
Zoning Map
Image Courtesy of the City of Asheville GIS, dated 2007.
Sheet 7 of 17
c
NOTE: JURISDICTIONAL WATERS OF THE U.S. WERE DELINEATED AND SURVEYED WITH
CPS BY C WS, INC. (CWS) ON NNE 13, 2007. JURISDICTIONAL FEATURES HAVE NOT BEEN
VERIFIED BY THE USACE.
T7 T7 \Y\ _ _. _ _. \ 1 ,1 , s
11! `
i I V Av ?" ?fv ?? ???
fi,
???I ? '?? t3 p \Av? y \A?Vw?A
\ \\ \ ??y
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w\\ cane aw;,; 11 Linear Feet \ \`
\t? \ Existing Culvert- \ \\, v? ?\ww
id4 Linear Fee DP4 - A _ A Ao
Wetland CC- A?
0.172 acre 1 \??\ t
\ ??x SCP5 V? ?\ \ \ \ +
\
a a, I n \? \ V vw\?
' rAIY FUJAGE \ \'
DP2 Wetland 88-
0.009 acre \ \\
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0.028 ocre \ `? \
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LEGEND
PROPERTY BOUNDARY
-- JURISDICTIONAL STREAM CHANNEL
JURISDICTIONAL WETLAND
PHOTO LOCATION AND DIRECTION
APPROXIMATE SCALE: V = 400'
Carolina Wetland Services
550 East Westinghouse Blvd.
Charlotte, North Carolina 28273
Wetland Boundary Survey
Asheville Regional Airport Expansion
Fletcher, North Carolina
CW S Project No. 2007-1889
Sheet 8 of 17
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Sheet 17 of 17
APPLICATION FOR DEPARTMENT OF THE ARMY PERMIT OMB APPROVAL NO. 0710-0003
(33 CFR 3251 Expires December 31, 2004
The Public burden for this collection of information is sestimated to average 10 hours per response, although the majority of applications should requiri
5 hours or less. This includes the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and
completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of
information, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Service Directorate of Information
Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302; and to the Office of Management and Budget,
Paperwork Reduction Project (0710-0003), Washington, DC 20503. Respondents should be aware that notwithstanding any other provision of law,
no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control
number. Please DO NOT RETURN your form to either of those addresses. Completed applications must be submitted to the District Engineer having
jurisdiction over the location of the proposed activity.
PRIVACY ACT STATEMENT
Authorities: Rivers and Harbors Act, Section 10, 33 USC 403; Clean Water Act, Section 404, 33 USC 1344; Marine Protection , Research and
Sanctuaries Act, 33 USC 1413, Section 103. Principal Purpose: Information provided on this form will be used in evaluating the application for a
permit. Routine Uses: This information may be shared with the Department of Justice and other federal, state, and local government agencies.
Submission of requested information is voluntary, however, if information is not provided the permit application cannot be evaluated nor can a permit
be issued.
One set of original drawings or good reproducible copies which show the location and character of the proposed activity must be attached to this
application (see sample drawings and instructions) and be submitted to the District Engineer having jurisdiction over the location of the proposed
activity. An application that is not completed in full will be returned.
/ITFMS 1 THRU d Tn RF FIr 1 Fn RV Tuc cnnnc'
1. APPLICATION NO.
2. FIELD OFFICE CODE 13. DATE RECEIVED 14, DATE APPLICATION COMPLETE
HTFMS RF/ nW TT) RF c1r t Fn RV evat rreem
5. APPLICANT'S NAME Asheville Regional Airport Authority 8. AUTHORIZED AGENT'S NAME AND TITLE (anagwv is no,,w, red)
Attn: Mr. David N. Edwards, Jr. Carolina Wetland Services, Attn: Craig R. Wyant
6. APPLICANT'S ADDRESS 9. AGENT'S ADDRESS
61 Terminal Drive, Suite 1 550 East Westinghouse Boulevard
Fletcher, NC 28732 Charlotte NC 28273
7.. APPLICANT'S PHONE NOS. W/AREA CODE 10 AGENT'S PHONE NOS W/AREA CODE
a. Residence a. Residence
b. Business [phone] I b. Business [phone] cell: [phone]
11. STATEMENT OF AUTHORIZATION
I hereby authorize,
furnish, upon request, supplemental information in support of this permit application.
Signed Agent Authorization Form Attached
APPLICANT'S SIGNATURE DATE
NAME, LOCATION AND DESCRIPTION OF PROJECT OR ACTIVITY
12. PROJECT NAME OR TITLE iseeinsrrucrions.
Asheville Regional Airport Northern Expansion
13. NAME OF WATERBODY, IF KNOWN a,,apoicsbtei 1 14. PROJECT STREET ADDRESS (ifapp?icable)
UT to French Broad River
15. LOCATION OF PROJECT
Buncombe
COUNTY
NC
STATE
to act in my behalf as my agent in the processing of this application and to
61 Terminal Drive, Suite 1
Fletcher, NC 28732
16. OTHER LOCATION DESCRIPTIONS, IF KNOWN, (seeinstructions)

17. DIRECTIONS TO THE SITE
From Asheville,-Take Interstate 26 South to the NC 280 Exit (New Airport Road). Turn right (southwest) and follow signage into
airport parking. Project site is located on the north side of existing hangars behind security fencing. FAA requires permission to
enter this area from the Airport Director.
18. Nature of Activity (Description of project, include ail features)
The Asheville Regional Airport has a need to expand its development to meet the increased demand in the aviation industry. Due to the limited real estate for aviation use
with access to both taxiway and runway facilities, and the boundary of the French Broad River, Interstate 26, and NC Route 280, this is the airports only remaining devel-
opable land for aviation use. This project will satisfy a portion of the publicly approved 20 year master plan for the airport. It is the purpose of this project to provide
service to economic development needs of Asheville Region and Buncombe County by providing airside access to airstrip and groundside access to four lane interstate
with approximately 450,000 square feet of new ramp, apron and taxiway; approximately 200,000 new square feet of building and approximately 150,000 new square feet
of roadway and parking. The project has been designed to satisfy the safety concerns of the FAA. This site is intended for disposal of fly ash as alternative to utilizing
valuable landfill space. State permits have already been obtained for placement of fly ash.
19. Project Purpose (Describe the reason or purpose of the project, see instructions)
The north expansion of the Asheville Regional Airport will provide for the surface area improvements necessary to accommodate ground side and air side general aviation.
(GA) purposes which have been identified as essential to the growing economic demand of the region. The facility must have both direct access to commercial airstrip
and ground side access to four lane interstate. Additionally, the project will provide an alternate disposal site for the placement of fly ash byproduct from energy produc-
ing coal fired power plants. The fly ash is presently being disposed of in surface landfill facilities which are in short supply due to the limited availability of suitable land
in the region. State approved offsite disposal areas for fly ash will greatly extend the life of the landfill.
USE BLOCKS 20-22 IF DREDGED AND/OR FILL MATERIAL IS TO BE DISCHARGED
20. Reason(s) for Discharge
In order provide for the surface area improvements necessary to the northern expansion of the airport facility there will need to be fill placed to bring the development area
up to grade. A pipe in the vicinity of the fill will be placed in order to carry the flow of an existing perennial stream and its side stream tributaries and wetlands
21. Type(s) of Material Being Discharged and the Amount of Each Type in Cubic Yards
Fly ash (one of several coal combustion products, or CCPs) is the finely divided mineral residue resulting from the combustion of coal in electric generating plants. Fly ash
consists of inorganic, incombustible matter present in the coal that has been fused during combustion into a glassy, amorphous structure. A geotextile liner will be placed
beneath the fly ahs and a 24" soil cap will be placed above.
22. Surface Area in Acres of Wetlands or Other Waters Filled (see instructions)
Impacts to Perennial Streams will total approximately 1,640 linear feet and impacts to wetland areas will total 0.209 acre (Sheets 10-14,
enclosed)
23. Is Any Portion of the Work Already Complete? Yes No IF YES, DESCRIBE THE COMPLETED WORK
Yes, wetland delineation has been completed and clearing and grubbing of the site outside of jurisdictional areas has been completed.
24. Addresses of Adjoining Property Owners, Lessees, Etc., Whose Property Adjoins the Waterbody (If more than can be entered here,
please attach a supplemental list).
List of Adjacent Property Owners Attached.
25. List of Other Certifications or Approvals/Denials Received from other Federal, State or Local Agencies for Work Described in This Application.
AGENCY TYPE APPROVAL' IDENTIFICATION NUMBER DATE APPLIED DATE APPROVED DATE DENIED
NCDENR Erosion and BUNCO-2007-013 N/A N/A N/A
Sediment Control
`Would include but is not restricted to zoning, building and flood plain permits
26. Application is hereby made for a permit or permits to authorize the work described in this application. I certify that the information in this
appiication is complete and accurate. I further certify that I possess the authority to undertake the work described herein or am acting as the
duly authorized agent of the applicant.
SIGNATURE OF APPLICANT
DATE
SIGNATURE OF AGENT
DATE
The application must be signed by the person who desires to undertake the proposed activity (applicant) or it may be signed by a duly
authorized agent if the statement in block 11 has been filled out and signed.
18 U.S.C. Section 1001 provides that: Whoever, in any manner within the jurisdiction of any department or agency of the United States
knowingly and willfully falsifies, conceals, or covers up any trick, scheme, or disguises a material fact or makes any false, fictitious or
fraudulent statements or representations or makes or uses any false writing or document knowing same to contain any false, fictitious or
fraudulent statements or entry, shall be fined not more than $10,000 or imprisoned not more than five years or both.
Oct-22-2007 04:22pm From-ASHEVILLE REGIONAL AIRPORT AUTH, [phone] T-865 P.002/002 F-582
AGENT CERTIFICATION OF AUTHORIZATION
I, David N. Edwards, Jr., A.A.E. Airport Director for the Asheville Regional Airport
Authority certify that I have authorized Craig R. Wyant of Carolina Wetland Services,
Inc. to act on my behalf and take all actions necessary to the processing, issuance, and
acceptance of the Section 404/401 Individual Permit and any and all standard and special
conditions attached for the Asheville Regional Airport Authority - North General
Aviation Expansion Project.
We hereby certify that the above information submitted in this application is true and
accurate to the best of our knowledge.
Applicant's signature
/DZ/2 z_ ?
Date
Agent's signature
10/22/07
Date
Completion of this form will allow the agent to sign all future application correspondence.
REQUEST FOR JURISDICTIONAL DETERMINATION
DATE: October 22, 2007
COUNTY Buncombe Count', North Carolina TOTAL ACREAGE OF TRACT -33 acres
PROJECT NAME (if applicable) Asheville Regional Airport Project
PROPERTY OWNER/APPLICANT (name, address and phone):
Asheville Regional Airport Authority
POC: Mr. David N. Edwards, Jr., at [phone]
61 Terminal Drive, Suite 1
Fletcher, NC 28732
NAME OF CONSULTANT, ENGINEER, DEVELOPER (if applicable):
Carolina Wetland Services, Inc.
POC: Mr. Craig R. Wyant, at [phone]
550 East Westinghouse Blvd.
Charlotte, NC 28273
STATUS OF PROJECT (check one):
( ) On-going site work for development purposes
( X) Project in planning stages
(Type of project: airport expansion )
( ) No specific development planned at present
( ) Project already completed
(Type of project: )
ADDITIONAL INFORMATION REQUIRED:
Check items submitted - forward as much information as is available. At a minimum, the following first two items must be
forwarded.
(X) Vicinity Map
(X ) USGS 7.5' Skyland, NC Topographic Quadrangle
(X) Buncombe County Soil Survey
(X) Aerial Photograph
(X) National Wetlands Inventory Map
(X) FEMA Floodplain Map
(X) Buncombe County Zoning Map
(X ) Wetland Boundary Survey
(X ) Pre-Developed Drainage Map
(X) Mass Grading Plan
(X) Typical Cross Section
(X) Final Development Plan (Sheets 12-14)
(X) Post-Developed Drainage Map (Sheets 15-17)
(X ) Section 404 Individual Permit Application (ENG FORM 4345)
(X ) Request for Jurisdictional Determination Form
(X ) Agent Certification of Authorization Form
(X) USACE Routine Wetland Determination Data Forms (DP1 - DP4)
(X) NCDWQ Stream Classification Forms (SCP1 - SCP5)
(X) USACE Stream Quality Assessment Worksheets (SCP1 - SCP5)
(X ) Approved Jurisdictional Determination Forms
(X ) Representative Photographs (A - H)
(X) Agency Correspondence
(X) Letter from Asheville Chamber of Commerce
(X) Adjoining Property Owners
(X) NCDWQ Stormwater Calculations

Signature of Property Owner or
Authorized Agent
Mr. Craig R. Wyant
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Asheville Regional Airport Project Date: 06/12/07
Applicant/Owner: Asheville Regional Airport Authority County: Buncombe
Investigator(s): Matt Jenkins, WPIT and Paul Bright State: NC
Do Normal Circumstances exist on the site? Yes No Community ID: u land
Is the site significantly disturbed (Atypical Situation)? Yes No Transect ID:
Is "e area 3 potential cbiem Alurea? 'r;s 1 RcJ: ! . D' 1
(If needed, -explain on reverse.'
VEGETATION
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
1 Polystichum acrostichoides herb FAC 9
2 Osmunda cinnamomea herb FACW+ 10
3 Juncus effusus herb FACW+ 11
4 Impatiens capensis herb FACW 12
5 13
6 14
7 15
8 16
Percent of Dominant Species that are OBL, FACW or FAC
100%
Remarks:
All of the dominant plant s
pecies are FAC or wetter.
HYDROLOGY
Recorded Data (Describe in remarks):
Stream, Lake or Tide Gauge
Aerial Photographs
Other
X No Recorded Data Available Wetland Hydrology Indicators:
Primary Indicators:
Inundated
Saturated in Upper 12 Inches
Water Marks
Drift Lines
Field Observations: Sediment Deposits (on leaves)
Drainage Patterns in Wetlands
Depth of Surface Water: N/A (in.) Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 Inches
Depth to Free Water in Pit: N/A (in.) Water-Stained Leaves
Local Soil Survey Data
Depth to Saturated Soil: N/A (in.) ?-FAC-Neutral Test
Other (Explain in Remarks)
Remarks:
No indicators of wetland hydrology are resent.
Routine On-Site Data Forms Page I Of 2 10/22/2007
SOILS
Map Unit Name
(Series and Phase): Tate loam, 2 to 8 p ercent slopes ( TaB) Drainage Class well-drained
Field Observations
Taxonomy (Subgroup): mesic T is Ha ludults Confirm Mapped Type? Yes No
Profile Descriotion:
Depth .,Aam.,, Ccicr `Mottle Colors "Vlottle e xture, Cona?e,icns.
(inches) Horizon (Munsell Moist) !Munsell Moist) abundance/Contrast Structure, etc.
0-12 B 2.5Y 4/2 N/A N/A silt loam
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer in Sandy Soils
Sulfidic Odor Organic Streaking in Sandy Soils
Aquic Moisture Regime Listed on Local Hydric Soils List (Inclusions)
Reducing Conditions Listed on National Hydric Soils List
Gleyed or Low-Chroma Colors Other (Explain in Remarks)
Remarks:
No indicators of h dric soils are resent.
WETLAND DETERMINATION
Hydrophytic Vegetation Present? Ye No (Circle)
Wetland Hydrology Present? Yes No (Circle)
Hydric Soils Present? Yes No Is this Sampling Point Within a Wetland? Yes No
Remarks:
Data point is representative of a non-'urisdictional upland area.
Approved by HQUSACE 2192
Routine On-Site Data Forms Page 2 of 2 10/22/2007
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Asheville Regional Airport Project Date: 06/12/07
Applicant/Owner: Asheville Regional Airport Authority County: Buncombe
Investigator(s): Matt Jenkins, WPIT and Paul Bright State: NC
Do Normal Circumstances exist on the site? Yes No Community ID: wetland
Is the site significantly disturbed (Atypical Situation)? Yes No Transect ID:
Is t"e area a cotential mbier7' Are?' \?? j DICt ! :
if needed, explain on reverse.)
VEGETATION
Dominant Plant S ecies Stratum Indicator Dominant Plant Species Stratum Indicator
1 Cornus amomum shrub FACW+ 9
2 Poiystichum acrostichoides herb FAC 10
3 Osmunda cinnamomea herb FACW+ 11
4 Juncus effusus herb FACW+ 12
5 Impatiens capensis herb FACW 13
6 14
7 15
8 16
Percent of Dominant Species that are OBL, FACW or FAC
100%
Remarks:
All of the dominant plant s
pecies are FAC or wetter.
HYDROLOGY
Recorded Data (Describe in remarks):
Stream, Lake or Tide Gauge
Aerial Photographs
Other
X No Recorded Data Available Wetland Hydrology Indicators:
Primary Indicators:
Inundated
-Saturated in Upper 12 Inches
Water Marks
Drift Lines
Field Observations: Sediment Deposits (on leaves)
?- Drainage Patterns in Wetlands
Depth of Surface Water: N/A (in.) Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 Inches
Depth to Free Water in Pit: N/A (in.) Water-Stained Leaves
Local Soil Survey Data
Depth to Saturated Soil: <12 (in.) -? FAC-Neutral Test
Other (Explain in Remarks)
Remarks:
Indicators of wetland h drolo are resent.
Routine On-Site Data Forms Page 1 of 2 10/22/2007
SOILS
Map Unit Name
(Series and Phase): Tate loam, 2 to 8 percent slopes ( TaB) Drainage Class well-drained
Field Observations
Taxonomy (Subgroup): mesic T is Ha ludults Confirm Mapped Type? Yes No
Profile Descriotion:
I
Decth viatri oicr
victtle _clcrr
vlottle ure. -- nc eticns.
(inches) Horizon (Munsell iMoistl (Munsell Moist) Abundance/Contrast Structure, etc
0-12 B 2.5Y 4/1 5YR 4/6 few/distinct silt loam
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer in Sandy Soils
Sulfidic Odor Organic Streaking in Sandy Soils
Aquic Moisture Regime Listed on Local Hydric Soils List (Inclusions)
Reducing Conditions Listed on National Hydric Soils List
Gleyed or Low-Chroma Colors Other (Explain in Remarks)
Remarks:
Indicators of h dric soils are resent.
WETLAND DETERMINATION
Hydrophytic Vegetation Present? Yes No (Circle
Wetland Hydrology Present? Yes No (Circle)
Hydric Soils Present? Ye No Ils this Sampling Point Within a Wetland? Ye No
Remarks:
Data point is representative of a 'urisdictional wetland area.
Approved by HQUSACE 2192
Routine On-Site Data Forms Page 2 of 2 10/22/2007
VEGETATION
Dominant Plant S ecies Stratum Indicator Dominant Plant Species Stratum Indicator
1 Acer rubrum tree FAC 9
2 Carpinus caroliniana tree FAC 10
3 Alnusserrulata tree FACW 11
4 Juncus effusus herb FACW+ 12
5 Carex spp. herb * 13
6 14
7 15
8 16
Percent of Dominant Species that are OBL, FACW or FAC
100%
Remarks: ' Please note this species was not identified to species and was therefore excluded from the FAC-Neutral test.
All of the dominant plant species are FAC or wetter.
HYDROLOGY
Recorded Data (Describe in remarks):
Stream, Lake or Tide Gauge
Aerial Photographs
Other
X No Recorded Data Available Wetland Hydrology Indicators:
Primary Indicators:
Inundated
Saturated in Upper 12 Inches
Water Marks
Drift Lines
Field Observations: Sediment Deposits (on leaves)
Drainage Patterns in Wetlands
Depth of Surface Water: N/A (in.) Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 Inches
Depth to Free Water in Pit: N/A (in.) Water-Stained Leaves
Local Soil Survey Data
Depth to Saturated Soil: <12 (in.) FAC-Neutral Test
Other (Explain in Remarks)
Remarks:
Indicators of wetland hydrology are resent.
Routine On-Site Data Forms Page 1 of 2 10/22/2007
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
SOILS
Map Unit Name
(Series and Phase): Tate loam, 2 to 8 percent slopes ( TaB) Drainage Class well-drained
Field Observations
Taxonomy (Subgroup): mesic T is Ha ludults Confirm Mapped Type? Yes No
Profile Descri tion:
Depth Matrix Color Mottle Colors Mottle Texture, Concretions,
(inches) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure, etc.
0-12 B 2.5Y 4/1 5YR 4/6 few/distinct silt loam
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer in Sandy Soils
Sulfidic Odor Organic Streaking in Sandy Soils
Aquic Moisture Regime Listed on Local Hydric Soils List (Inclusions)
Reducing Conditions Listed on National Hydric Soils List
Gleyed or Low-Chroma Colors Other (Explain in Remarks)
Remarks:
Indicators of h dric soils are resent.
WETLAND DETERMINATION
Hydrophytic Vegetation Present? Yes No (Circle)
Wetland Hydrology Present? Yes No
(Circle)
Hydric Soils Present? Yes No Is this Sampling Point Within a Wetland? Ye No
Remarks:
Data Point is representative of a 'urisdictional wetland area.
Approved by HQUSACE 2192
Routine On-Site Data Forms Page 2 of 2 10/22/2007
DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Asheville Regional Airport Project Date: 06/12/07
Applicant/Owner: Asheville Regional Airport Authority County: Buncombe
Investigator(s): -Matt Jenkins, WPIT and Paul Bright State: NC
Do Normal Circumstances exist on the site? Yes No Community ID: wetlan
Is the site significantly disturbed (Atypical Situation)? Yes No Transect ID:
Is the area a potential Problem Area? Yes No Plot ID: DP4
If needed, explain on reverse.)
VEGETATION
Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator
1 Nyssa sylvatica tree FAC 9
2 Salix nigra tree OBL 10
3 Carpinus caroliniana tree FAC 11
4 Cornus amomum shrub FACW+ 12
5 Boehmeria cylindrica herb FACW+ 13
6 Carex spp. herb * 14
7 Juncus effusus herb FACW+ 15
8 Impatiens capensis herb FACW 16
Percent of Dominant Species that are OBL, FACW or FAC
100%
Remarks: * Please note this species was not identified to species and was therefore excluded from the FAC-Neutral test.
All of the dominant plant species are FAC or wetter.
HYDROLOGY
Recorded Data (Describe in remarks):
Stream, Lake or Tide Gauge
Aerial Photographs
Other
X No Recorded Data Available Wetland Hydrology Indicators:
Primary Indicators:
X Inundated
Saturated in Upper 12 Inches
Water Marks
Drift Lines
Field Observations: Sediment Deposits (on leaves)
Drainage Patterns in Wetlands
Depth of Surface Water: 0-2 (in.) Secondary Indicators (2 or more required):
Oxidized Root Channels in Upper 12 Inches
Depth to Free Water in Pit: N/A (in.) Water-Stained Leaves
Local Soil Survey Data
Depth to Saturated Soil: >12 (in.) FAC-Neutral Test
Other (Explain in Remarks)
Remarks:
Indicators of wetland h drolo are resent.
Routine On-Site Data Forms Page 1 of 2 10/22/2007
SOILS
Map Unit Name
(Series and Phase): Tate loam, 2 to 8 percent slopes ( TaB) Drainage Class well-drained
Field Observations
Taxonomy (Subgroup): mesic T is Ha ludults Confirm Mapped Type? Yes No
Profile Description:
Depth Matrix Color Mottle Colors Mottle Texture, Concretions,
(inches) Horizon (Munsell Moist) (Munseil Moist) Abundance/Contrast Structure, etc.
0-12 B 10YR 4/1 N/A N/A silt loam
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer in Sandy Soils
Sulfidic Odor Organic Streaking in Sandy Soils
Aquic Moisture Regime Listed on Local Hydric Soils List (Inclusions)
Reducing Conditions Listed on National Hydric Soils List
-? Gleyed or Low-Chroma Colors Other (Explain in Remarks)
Remarks:
Indicators of h dric soils are resent.
WETLAND DETERMINATION
Hydrophytic Vegetation Present? Yes No (Circle)
Wetland Hydrology Present? Yes No
(Circle)
Hydric Soils Present? Yes No Is this Sampling Point Within a Wetland? Ye No
Remarks:
Data oint is representative of a 'urisdictional wetland area.
Approved by HQUSACE 2192
Routine On-Site Data Forms Page 2 of 2 10/22/2007
North Carolina Division of Water Quality - Stream Identification Form; Version 3.1
Date: 06/12/2007 Prolec thevilleRegionalAirport Project Latitude: N35.44543°
Evaluator: N,J & PAB Site: SCP1 Longitude: W82,54094°
Total Points; Perennial Stream A
Stream is at least Intermittent County- Other
if? 19 or erenniaf if? 30 =2 0-1 Buncombe e.g. Quad Name:
A. Geomorphology (Subtotal = 15.5 Absent Weak Moderate Strong
1'. Continuous bed and bank 2.0 0 1 2 3
2. Sinuosity 2.0 0 1 2 3
3. In-channel structure: riffle-pool sequence 2.0 0 1 2 3
4. Soil texture or stream substrate sorting 2.0 0 1 2 3
5_ Active/relic floodplain 1.0 0 1 2 3
6. Depositional bars or benches 1.0 0 1 2 3
7. Braided channel 0.0 0 1 2 3
8. Recent alluvial deposits 1.0 0 1 2 3
9 a Natural levees 1.0 0 1 2 3
10. Headcuts 2.0 0 1 2 3
11. Grade controls 1.5 0 0.5 1 1.5
12. Natural valley or drainageway 0.0 0 0.5 1 1.5
13. Second or greater order channel on existing
USGS or NRCS map or other documented
evidence.

0.0
No = 0
Yes= 3
man-made tlitcnes are not rated, see discussions in manual
B. Hvdroloav (Subtotal = 9.0 1
14. Groundwater flow/discharge 2.0 0 1 2 3
15. Water in channel and > 48 hrs since rain, or
Water in channel -- dry or growing season
2.0 0 1 2 3
16. Leaflitter 1.5 1.5 1 0.5 0
17. Sediment on plants or debris 1.0 0 0.5 1 1.5
18. Organic debris lines or piles (Wrack lines) 1.0 0 0.5 1 1.5
19. Hydric soils (redoximorphic features) present?1.5 No = 0 Yes = 1.5
C. Bioloov (Subtotal = 9.00 )
20". Fibrous roots in channel 3.0 3 2 1 0
21". Rooted plants in channel 3.0 3 2 1 0
22. Crayfish 0.0 0 0.5 1 1.5
23_ Bivalves 0.0 0 1 2 3
24. Fish 0.0 0 0.5 1 1.5
25. Amphibians 1.5 0 0.5 1 1.5
26. Macrobenthos (note diversity and abundance) 0.5 0 0.5 1 1.5
27. Filamentous algae: periphyton 1.0 0 1 2 3
28. Iron oxidizing bacteriatfungus. 0.0 0 0.5 1 1.5
29°. Wetland plants in streambed 0.00 FAC = 0.5; FACW = 0.75; OBL = 1.5 SAV = 2.0; Other = 0
' Items 20 and 21 focus on the presence of upland plants, Item 29 focuses on the presence of aquatic or wetland plants.
Sketch:
Notes: (use back side of this form for additional notes.)
North Carolina Division of Water Quality -Stream Identification Form; Version 3.1
Date: 06/12/2007 Projectheville Regional Airport Project Latitude:
N35.44543
Evaluator: Nffij & PAB Site: SCP2 Longitude:
W82.54094o
Total Points: Perennial Stream A
Stream is at least inter? itfenf 2 L County' Other
ifz 19 or eret7nialif>- 30 yJ •SO Buncombe e.g. Quad Name:
A. Geomor holo (Subtotal= 17.5
13
C Absent VVeak Moderate
Strong
.
ontinuous bed and bank 2.0 0 1

2. Sinuosity .

3.0

0

1 2 3
3

3. In-channel structure: riffle-pool sequence
2.0
0
1 2

4. Soil texture or stream substrate sorting
2
0
0 2 3

5. Activelrelicfloodplain .
2.0

0 1

1 2
3

6. Depositional bars or benches
1
0
0 2 3

7. Braided channel .

0.0

0 1

1 2
3

8. Recent alluvial deposits
1
0
0 2 3

9 a Natural levees .

1.0

0 1

1 2
3

10. Headcuts
2.0
0
1 2 3

11. Grade controls

os

o

0
5 2
3

12. Natural valley or drainageway
1
0
0 . 1 1.5

13. Second or greater order channel on existing . 0.5 1
1.5
USGS or NRCS map or other documented No= 0
evidence.
0.0 Yes = 3

Man-made ditches are not rated: see discussions in manual _ J
B. Hydrology (Subtotal = 9.5 }
14_ Groundwater flovidischarge 3.0 0 1

15. Water in channel and > 48 hrs since rain
or 2 3
,
Water in channel -- dr or growing season 2.0 0 1 2 3
16. Leaflitter 1.0 1.5 1
0
5
0
17. Sediment on plants or debris 1.0 0 0
5 .

18. Organic debris lines or Piles
(Wrack lines)

1
0

0 . 1
1.5
.
19. Hydric soils (redoximorphic features) present?1.5
No = 0 0.5 1 1.5
Yes= 1.5
C. Biology (Subtotal = 9.50 )
eU . r-lorous roots in channel
b 3.0 3 2 1
21
Rooted plants in channel
3.0
3
2 0

22. Crayfish
0.0
0
-n q 1 0

23. Bivalves 1
1.5
0.0 0 1

24. Fish
0.0
0
0
5 2

1 3

25. Amphibians
1
0
0 . 1.5

26_ Macrobenthos (note diversity and abundance) .
0
5
0 0.5 1
1.5

27. Filamentous al
ae
i
h . 0.5 1 1.5
g
: per
p
yton 2.0 0 1

28. Iron oxidizin
bacteri
lf 2 3
g
a
ungus. 0.0 0 0
5
29 b. Wetland plants in streambed
0.00
Items 20 and 21 focus on the Presence of unlanri nlnn+_ 11
FAC = 0.5;
.- 30 F,,,...
FA .
CW = 0.75; OBL
= 1.5 1
SAV = 2.0: 1.5
Other = 0
t __.._ ayuauo or weaana plants.
Notes: (use back side of this form for additional notes.) ' Sketch:

North Carolina Division of Water Quality - Stream Identification Form; Version 3.1
Dare: 06/12/2007 ProjeC;Lheville Regional Airport Project Latitude: N35.44543°
Evaluator: NMJ & PAB Site: SCP3 Longitude: W82,54094°
Total Points: Perennial Stream A
Stream is at feast intenrritfent 35.50 County' Other
if>_ 18 or perennial if? 30 Buncombe e.g. QuadName:
A. Geomorphology (Subtotal = 17.5___) Absent Weak Moderate Strong
1 3. Continuous bed and bank 2.0 0 1 2 3
2. Sinuosity 3.0 0 1 2 3
3. In-channel structure: riffle-pool sequence 2.0 0 1 2 3

4. Soil texture or stream substrate sorting
2.0
0
1
2 _
3
S. Active/relic fIoodplain 2.0 0 1 2 3
6. Depositional bars or benches 1.0 0 1 2 3
7. Braided channel 0.0 0 1 2 3
8. Recent alluvial deposits 1.0 0 1 2 3
9 a Natural levees 1.0 0 1 2 3
10_ Headcuts 2.0 0 1 2 3
11 _ Grade controls 0.5 0 0.5 1 1.5
12. Natural valley or drainageway 1.0 0 0.5 1 1.5
13. Second or greater order channel on existing
USGS or NRCS map or other documented
evidence.

0.0
No = 0
Yes= 3
` Man-made ditches are not rated; see discussions in manual
B. Hvdroloav (Subtotal = 9.5 }
14. Groundwater flow/discharge 3.0 0 1 2 3
15. Water in channel and > 48 hrs since rain, or
Water in channel -- d or growing season
2.0 0 1 2 3
16. Leaflitter 1.0 1.5 1 0.5 0
17. Sediment on plants or debris 1.0 0 0.5 1 1.5
18. Organic debris lines or piles (Wrack lines) 1.0 0 0.5 1 1.5
19. Hydric soils (redoximorphic features) present?1.5 No = 0 Yes= 1.5
C. Biolow (Subtotal = 8.50 )
200. Fibrous roots in channel 3.0 3 2 1 0
210. Rooted plants in channel 3.0 3 2 1 0
22. Crayfish 0.0 0 0.5 1 1.5
23. Bivalves 0.0 0 1 2 3
24. Fish 1.0 0 0.5 1 1.5
25. Amphibians 1.0 0 0.5 1 1.5
26. Macrobenthos (note diversity and abundance) 0.5 0 0.5 1 1.5
27_ Filamentous algae: periphyton 0.0 0 1 2 3
28. Iron oxidizing bacteria fungus. 0.0 0 0.5 1 1.5
290. Wetland plants in streambed 0.00 FAC = 0.5: FACW = 0.75; OBL = 1.5 SAV = 2.0; Other = 0
' Items 20 and 21 focus on the presence of upland plants, Item 29 focuses on the presence of aquatic or wetland plants.
Sketch:
Notes: fuse back side of this form for additional notes.)

North Carolina Division of Water Quality - Stream Identification Form; Version 3.1
Date: 06/12/2007 Prole Asheville Regional Airport Project Latitude: N35.44543°
Evaluator: MLJ & PAB Site: SCP4 Longitude: W82.54094°
Total Points: Unimportant Intermittent
Stream rs at least internbtteni county: Other
if? 19 or erennialif? 30 23.5 Buncombe e.g. Quad Name: Stream B
A. Geomorphology (Subtotal= 13.0--) Absent' Weak Moderate Strong
13. Continuous bed and bank 2.0 0 1 2 3
2. Sinuosity 2.0 0 1 2 3
3. In-channel structure: riffle-pool sequence 1.0 0 1 2 3
4. Soil texture or stream substrate sorting 2.0 0 1 2 3
5. Activetrelic fIoodplain 1.0 0 1 2 3
6. Depositional bars or benches 1.0 0 1 2 3
7. Braided channel 0.0 0 1 2 3
8. Recent alluvial deposits 1.0 0 1 2 3
9 a Natural levees 0.0 0 1 2 3
10. Headcuts 2.0 0 1 2 3
11. Grade controls 0.5 0 0.5 1 1.5
12. Natural valley or drainagevvay 0.5 0 0.5 1 1.5
13. Second or greater order channel on existing
USGS or MRCS map or other documented
evidence.

0.0
No = 0
Yes= 3
- Man-made ditches are not rated; see discussions in manual
B_ Hvdroloov (Subtotal = 4.5 1
14_ Groundwater flov+ddischarge 1.0 0 1 2 3
15. Water in channel and > 48 hrs since rain, or
Water in channel -- dry or growing season
0.0 0 1 2 3
16. Leaflitter 1.0 1.5 1 0.5 0
17. Sediment on plants or debris 0.5 0 0.5 1 1.5
18. Organic debris lines or piles (Wrack lines) 0.5 0 0.5 1 1.5
19. Hydric soils (redoximorphic features) present?1.5 No = 0 Yes= 1.5
C. Bioloov (Subtotal = 6.00 l
20b. Fibrous roots in channel 3.0 3 2 1 0
21b. Rooted plants in channel 3.0 3 2 1 0
22. Crayfish 0.0 0 0.5 1 1.5
23. Bivalves 0.0 0 1 2 3
24. Fish 0.0 0 0.5 1 1.5
25. Amphibians 0.0 0 0.5 1 1.5
26. Macrobenthos (note diversity and abundance) 0.0 0 0.5 1 1.5
27. Filamentous algae: periphyton 0.0 0 1 2 3
28. Iron oxidizing bacteriatfungus. 0.0 0 0.5 1 1.5
29b. Wetland plants in streambed 0.00 FAC = 0.5: FACW = 0.75; OBL = 1.5 SAV = 2.0; Other = 0
- Items 1u and 21 locus on the presence of upland plants, Item 29 focuses on the presence of aquatic or wetland plants.
Sketch:
Notes: fuse back side of this form for additional notes:)
L
North Carolina Division of Water Quality - Stream Identification Form; Version 3.1
Date: 06/12/2007 Proiectheviue Regional Airport Project Latitude: N35.44543-
Evaluator: NffiJ & pA.B site: SCP5 Longitude: W82,54094°
Total Points: Perennial Stream C
Stream is at feast intermitfenf 3 00 County' Other
if? 19 or perennial if ? 30 O. ' Buncombe e.g. Quad Name.
A. Geomorphology (Subtotal = 14.0 Absent Weak Moderate Strong,
13. Continuous bed and bank 2.0 0 1 2 3
2. Sinuosity 1.0 0 1 2 3
3. In-channel structure: riffle-pool sequence 2.0 0 1 2 3
4. Soil texture or stream substrate sorting 2.0 0 1 2 3
5. Activelrelic floodplain 2.0 0 1 2 3
6. Depositional bars or benches 1.0 0 1 2 3
7. Braided channel 0.0 0 1 2 3
8. Recent alluvial deposits 1.0 0 1 2 3
9 a Natural levees 1.0 0 1 2 3
10. Headcuts 1.0 0 1 2 3
11. Grade controls 0.5 0 0.5 1 1.5
12. Natural valley or drainageway 0.5 0 0.5 1 1.5
13. Second or greater order channel on existing
USGS or NRCS map or other documented
evidence.

0.0
No= 0
Yes = 3
man-made ditcnes are not rated: see discussions in manual
B. Hvdroloav (Subtotal = 8.5 }
14. Groundwater flovddischarge _ 2.0 0 1 2 3
15. Water in channel and > 48 hrs since rain, or
Water in channel -- d or growing season
2.0 0 1 2 3
16. Leaf Iitter 1.5 1.5 1 0.5 0
17. Sediment on plants or debris 0.5 0 0.5 1 1.5
18. Organic debris lines or piles (Wrack lines) 1.0 0 0.5 1 1.5
19. Hydric soils (redoximorphic features) present?1.5 No = 0 Yes= 1.5
C. Biolociv (Subtotal = 7.50 }
20b. Fibrous roots in channel 3.0 3 2 1 0
21b. Rooted plants in channel 3.0 3 2 1 0
22. Crayfish 0.0 0 0.5 1 1.5
23. Bivalves 0.0 0 1 2 3
24. Fish 0.0 0 0.5 1 1.5
25. Amphibians 0.5 0 0.5 1 1.5
26. Macrobenthos (n ote diversity and abundance) 0.5 0 0.5 1 1.5
27. Filamentous algae: periphyton 0.0 0 1 2 3
28. Iron oxidizing bacteriatfungus. 0.5 0 0.5 1 1.5
29 b. Wetland plants in strearnbed 0.00 FAC = 0.5: FACW = 0.75; OBL = 1.5 SAV = 2.0; Other = 0
Items 20 and 21 focus on the presence of upland plants, Item 29 focuses on the presence of aquatic or wetland plants.
Sketch:
Niles: (use back side of this form for additional notes.)
OFFICE USE ONLY: USACE AID# DWQ #
SCP1- Perennial Stream A
M STREAM QUALITY ASSESSMENT WORKSHEET a `;
1. Applicant's Name: Asheville Regional Airport Authority 2. Evaluator's Name: - Matt Jenkins and Paul Bright
3. Date of Evaluation: 6/12/07 4. Time of Evaluation: 12:00 pm
5. Name of Stream: UT to Broad River 6. River Basin: Broad
7. Approximate Drainage Area: 65 acres S. Stream Order: First

.0.-uniy: Buncombe
11. Location of reach under evaluation (include nearby roads and landmarks):- Travel south on Interstate 85 (1-85) and merge onto
I-26 West via Exit 70 toward Asheville. Travel a roxitnatel 48.6 miles and take the NC-280 exit Exit 40 toward Asheville
Regional Airport/ Arden. Travel approximately 0.2 mile and turn left onto New Airport Road/ NC-280. Travel approximately 0.2
mile and turn right onto General Aviation Drive. Travel approximately 0.3 mile and the site will be straight ahead.
12. Site Coordinates (if known): N35.445430W82.540940
13. Proposed Channel Work (if any): N/A
14. Recent Weather Conditions: no rain within the past 48 hours
15. Site conditions at time of visit: sunny 80 degrees
16. Identify any special waterway classifications known: -Section 10 -Tidal Waters -Essential Fisheries Habitat
-Trout Waters -Outstanding Resource Waters _ Nutrient Sensitive Waters -Water Supply Watershed (I-IV)
17. Is there a pond or lake located upstream of the evaluation point? YES NO If yes, estimate the water surface area:
18. Does channel appear on USGS quad map? (a) NO 19. Does channel appear on USDA Soil Survey? YE NO
20. Estimated Watershed Land Use: _% Residential 40 % Commercial _% Industrial _% Agricultural
10 % Forested 50 % Cleared / Logged _% Other (
21. Bankfull Width: 4-5' 22. Bank Height (from bed to top of bank): 34'
23. Channel slope down center of stream: -Flat (0 to 2%) X Gentle (2 to 4%) -Moderate (4 to 10%) -Steep (>10%)
24. Channel Sinuosity: Straight -Occasional Bends X Frequent Meander -Very Sinuous -Braided Channel
Instructions for completion of worksheet (located on page 2): Begin by determining the most appropriate ecoregion based on
location, terrain, vegetation, stream classification, etc. Every characteristic must be scored using the same ecoregion. Assign points to each
characteristic within the range shown for the ecoregion. Page 3 provides a brief description of how to review the characteristics identified in the
worksheet. Scores should reflect an overall assessment of the stream reach under evaluation. If a characteristic cannot be evaluated due to site or
weather conditions, enter 0 in the scoring box and provide an explanation in the comment section. Where there are obvious changes in the character
of a stream under review (e.g., the stream flows from a pasture into a forest), the stream may be divided into smaller reaches that display more
continuity, and a separate form used to evaluate each reach. The total score assigned to a stream reach must range between 0 and 100, with a score of
100 representing a stream of the highest quality.
Total Score (from reverse): 49 Comments:
Evaluator's Signature Date
This channel evaluation form is intended to be used only as a guide to assist landowners and environmental professionals in
gathering the data required by the United States Army Corps of Engineers in order to make a preliminary assessment of
stream quality. The total score resulting from the completion of this form is subject to USACE approval and does not imply a
particular mitigation ratio or requirement. Form subject to change - version 05/03. To Comment, please call 919-876-8441 x 26.
STREAM QUALITY ASSESSMENT WORKSHEET
SCPI - Perennial Stream A
* These characteristics are not assessed in coastal streams.
OFFICE USE ONLY: USACE AID# DWQ #
i
SCP2 - Perennial Stream A
LEI:] STREAM QUALITY ASSESSMENT WORKSHEET
1. Applicant's Name: Asheville Regional Airport Authority 2. Evaluator's Name: Matt Jenkins and Paul Bright
3. Date of Evaluation: 6/12/07 4. Time of Evaluation: 12:30 pm
5. Name of Stream: UT to Broad River 6. River Basin: Broad
7. Approximate Drainage Area: 65 acres 8. Stream Order: First
9. Length of Reach Evaluated: 200 if 10. County: Buncombe
11. Location of reach under evaluation (include nearby roads and landmarks): Travel south on Interstate 85 (I-85) and merge onto
I-26 West via Exit 70 toward Asheville. Travel approximately 48.6 miles and take the NC-280 exit (Exit 40) toward Asheville
Regional Airport / Arden. Travel approximately 0.2 mile and turn left onto New Airport Road / NC-280. Travel approximately 0.2
mile and turn right onto General Aviation Drive. Travel approximately 0.3 mile and the site will be straight ahead.
12. Site Coordinates (if known): N35.44543°, W82.540940
13. Proposed Channel Work (if any): N/A
14. Recent Weather Conditions: no rain within the past 48 hours
15. Site conditions at time of visit: sunny 80 degrees
16. Identify any special waterway classifications known:
-Trout Waters -Outstanding Resource Waters
17. Is there a pond or lake located upstream of the evaluati
18. Does channel appear on USGS quad map? YE NO
20. Estimated Watershed Land Use: _% Residential
Section 10 Tidal Waters Essential Fisheries Habitat
_ Nutrient Sensitive Waters -Water Supply Watershed (I-IV)
on point? YES NO If yes, estimate the water surface area:
19. Does channel appear on USDA Soil Survey? (a) NO
40 % Commercial _% Industrial _% Agricultural
10 % Forested 50 % Cleared / Logged _% Other ( )
21. Bankfull Width: 4-5' 22. Bank Height (from bed to top of bank)
23. Channel slope down center of stream: -Flat (0 to 2%) X Gentle (2 to 4%) -Moderate (4 to 10%) -Steep (>10%)
24. Channel Sinuosity: Straight -Occasional Bends X Frequent Meander -Very Sinuous -Braided Channel
Instructions for completion of worksheet (located on page 2): Begin by determining the most appropriate ecoregion based on
location, terrain, vegetation, stream classification, etc. Every characteristic must be scored using the same ecoregion. Assign points to each
characteristic within the range shown for the ecoregion. Page 3 provides a brief description of how to review the characteristics identified in the
worksheet. Scores should reflect an overall assessment of the stream reach under evaluation. If a characteristic cannot be evaluated due to site or
weather conditions, enter 0 in the scoring box and provide an explanation in the comment section. Where there are obvious changes in the character
of a stream under review (e.g., the stream flows from a pasture into a forest), the stream may be divided into smaller reaches that display more
continuity, and a separate form used to evaluate each reach. The total score assigned to a stream reach must range between 0 and 100, with a score of
100 representing a stream of the highest quality.
Total Score (from reverse): 51 Comments:
Evaluator's Signature Date
This channel evaluation form is intended to be used only as a guide to assist landowners and environmental professionals in
gathering the data required by the United States Army Corps of Engineers in order to make a preliminary assessment of
stream quality. The total score resulting from the completion of this form is subject to USACE approval and does not imply a
particular mitigation ratio or requirement. Form subject to change - version 05/03. To Comment, please call 919-876-8441 x 26.
STREAM QUALITY ASSESSMENT WORKSHEET
SCP2 - Perennial Stream A
C.. ©
lLLi. C ? P0W
GQ x,Rt
?k,4t
tF ? 1T ?T :"R TI I .

035a`. .
Pl
d"i ..

?C
(
II
?I..
K
y, ?, e
IIQIIr III
«s '
,
Presence of flaw [persistent pools in stream
"
1
(uo ffow or saturation = 0; strong tlo%v= max points)
0 -5
0 4 0
-
>
4

2 Evidence of past human alteration

(extensive alteration - 0: no alteration = max oints) 0 6 (}-5 G-5- 2
Riparian zone

(no buffer - 0: continuous, wide buffer = Max points) 0-6 0-4 0-5 0
Evidence of nutrient or chemical dischar,es

i extensive dischar?`es - 0: no dischar yes - max Points) 0-5 0 -4 0--4 3
Groundwater discharge
5
(no dischar"e - 0.5rubs, seeps, wetlands. etc. - max points
)
0-3
0-4
(}-4
3
Presence of adjacent floodplain
fx
(no flood lain - O: extensive flood lain= max points) 0-4 0 - 4. 0 2: 2
Entrenchmentf`tIoodplaia access
7 ('deeply entrenched=0: firecuentflooding =Max .Dints) 0-5 0-4 0_ 2
Presence of adjacent wetlands

(no wetlands -= 0.- large adjacent wetlands -- max points) 0-6 0 -? 0-2 2
_
0
9 Channel sinuosity

(extensive channelization = 0: natural meander - max points) 0-5 U 4 0-3 3
10 Sediment input
p 0- 5 0-4 0 4 3
(extensive de
osition-= 0; little or no, sediment - maY points)
Size &- diversity of channel bed substrate
t
Oillc, homonenous = 0, large, diverse sizes = max omts 0-4 0-5 3
12 Evidence of channel incision or widening
.
(deeply incised = 0: stable bed & banks = mar om?)' 0 5 0-4 ' EF 3 2

I3" Presence of major bank failures
0-;
0
5
0
5
3
..??
?. (severe erosion= 0: no erosion- stable banks = max points) - -
Root depth and density on banks

,N. 14

(no -isrble'roots = 0; deice roots throughout- max pmts) 0-3 0-4 5 3
J
I5 Impact by agriculture or livestock production
-

(substantial impact -0: no e«dence = max points) 5
0 0-4 0-5 4
16 Presence of riffle-poot/ripple-Pool complexes

?
(no,> f les/ri les or pools = 0; well-developed = maz points)` 0, _ 0-5 01- 6

i. 4
c °
1 Habitat complexity
0-6
0 - b
0 6
`
3
` (little or na habitat- 0; frequent, wined habitats-max Dints) .

IS Canopy coverage over streambed
(j. -5
?
0
0_ 5
0

f (no shading vegetation - 0- continuous c ano x max points) .

1y Substrate embeddedness
?)
0-4
a-4
3
(deeply embedded = 0; loose stiuc tuie - max) ?. ,

20 Presence of stream invertebrates

no evidence - 0, common. numerous types - max points) 0-4 , 0-5 E7 = 5 2
Presence of amphibians 0-4 0-4 0l-4 2
': IIe evidence = 0; common, numerous types- max points)

?? Presence of fish
0'--4
0 -4
0-4
0
-w' (no ev,idcnce - 0; common; numerous types max points)

n
{
?3 Evidence of wildlife use
Q-6
0-5
0.. 5?
0
(no evidence = 0; abundant evidence = tnax points)
? 7
- ; "Fatal Points IVosstbre w t

E3Tk1L SCUI??(alsu en ec,n 51
1, ?t ':
* These characteristics are not assessed in coastal streams.
OFFICE USE ONLY: USACE AID# DWQ #
SCP3 - Perennial Stream A
. ; STREAM QUALITY ASSESSMENT WORKSHEET
1. Applicant's Name: Asheville Regional Airport Authority 2. Evaluator's Name: Matt Jenkins and Paul Bright
3. Date of Evaluation: 6/12/07 4. Time of Evaluation: 1:00 pm
5. Name of Stream: UT to Broad River 6. River Basin: Broad
1. Approximate Drainage Area: 65 acres
S. Stream Order:
G, %ML)l i oC i?ea'il aiLiatc.: {)l l ). _Junu ?iunc'ombe
11. Location of reach under evaluation (include nearby roads and landmarks): Travel south on Interstate 85 (1-85) and merge onto
I-26 West via Exit 70 toward Asheville. Travel approximately 48.6 miles and take the NC-280 exit (Exit 40) toward Asheville
Regional Airport / Arden. Travel approximately 0.2 mile and turn left onto New Airport Road / NC-280 Travel approximately 0.2
mile and turn right onto General Aviation Drive. Travel approximately 0.3 mile and the site will be straight ahead.
12. Site Coordinates (if known): N35.445430W82.54094°
13. Proposed Channel Work (if any): N/A
14. Recent Weather Conditions: no rain within the east 48 hours
15. Site conditions at time of visit: sunny 80 degrees
16. Identify any special waterway classifications known: -Section 10 -Tidal Waters -Essential Fisheries Habitat
-Trout Waters -Outstanding Resource Waters _ Nutrient Sensitive Waters -Water Supply Watershed (I-IV)
17. Is there a pond or lake located upstream of the evaluation point? YES NO If yes, estimate the water surface area:
18. Does channel appear on USGS quad map? Q NO 19. Does channel appear on USDA Soil Survey? YE NO
20. Estimated Watershed Land Use: _% Residential 40 % Commercial _% Industrial _% Agricultural
10 % Forested 50 % Cleared / Logged _% Other
21. Bankfull Width: 4-5' 22. Bank Height (from bed to top of bank): 4-5'
23. Channel slope down center of stream: -Flat (0 to 2%) X Gentle (2 to 4%) -Moderate (4 to 10%) -Steep (,-10%)
24. Channel Sinuosity: Straight -Occasional Bends X Frequent Meander -Very Sinuous -Braided Channel
Instructions for completion of worksheet (located on page 2): Begin by determining the most appropriate ecoregion based on
location, terrain, vegetation, stream classification, etc. Every characteristic must be scored using the same ecoregion. Assign points to each
characteristic within the range shown for the ecoregion. Page 3 provides a brief description of how to review the characteristics identified in the
worksheet. Scores should reflect an overall assessment of the stream reach under evaluation. If a characteristic cannot be evaluated due to site or
weather conditions, enter 0 in the scoring box and provide an explanation in the comment section. Where there are obvious changes in the character
of a stream under review (e.g., the stream flows from a pasture into a forest), the stream may be divided into smaller reaches that display more
continuity, and a separate form used to evaluate each reach. The total score assigned to a stream reach must range between 0 and 100, with a score of
100 representing a stream of the highest quality.
Total Score (from reverse): 53 Comments:
Evaluator's Signature Date
This channel evaluation form is intended to be used only as a guide to assist landowners and environmental professionals in
gathering the data required by the United States Army Corps of Engineers in order to make a preliminary assessment of
stream quality. The total score resulting from the completion of this form is subject to USACE approval and does not imply a
particular mitigation ratio or requirement. Form subject to change - version 05103. To Comment, please call 919-876-8441 x 26.
STREAM QUALITY ASSESSMENT WORKSHEET
SCP3 - Perennial Stream A
IWAI C
TE? CO ",GtW-4i
,
R .. ? ?
_ asttd;. ? ed
o?' r
UU3 7
? ,
? ,..? ri= m {?apl
r 1-
Presence of flow i persistent pools in,strealn'

no flow or saniration = 0_ strong Clow mas points')' 0-5 0-4- 0-5 4
Evidence of past human alteration _

exten?ivc alteration - 0: no alteration- max points) 0 - 6 0 5 0-5 2
Riparian zone

0 n t?cf -O 0111. tic Lis, !,uf-t2- ma:vpcmty)
0 6 0
O ? 0-i
Evidence of nutrient or chemical dischar-es
i 2stensiv schar<?es - U. nc jischar--es - m lx points)
Ground?i atcr dischar?r ,
(no dtschai_ e - O; s seeps. -?tcrlands, (f tc_ -max 'points)

Presence of adjacent floodplain

e 6
no hood lain = 0_ extensive flood' lain- max Dints 0-- 4 (1-4 0- 2 2

7 Entrenchment / floodplain access.

(deeply entrenched= 0: tie uent flooding -? ma points) 0-5 0-4 0-2 2 2
Presence of adjacent wedands+

(no wetlands = 0-- lame: adjacentwetl"andsmax omits): 0-6 0-41 Q-Z 0
Channel sinuosity
9
(extensive channelization - 0: natural' meander'- max points) 0- 0-4 01--.3 3

10 Sediment input
'
i
'

(extensive deposition- 0;_ little or no sediment= max Dints) 0`
- O
- 4' 0
?=4 3
?. Size &c diversity of channel bed substrate v ?` '

(fine._liomoenous-=0?large, diverse sues max points) 0=4 0 3
Evidence of channel incision;orwidening
r 1 (deeply incised = 0: stable bed & banks max otnts) Q - 5 () - 4 0 -S 2
.
13 Presence of major bank failures
r.3
(severe erosion- 0, no erosion, stable banks - max points) 0:-5 0-5. r 0 5 3

11 Root depth and density: on banks
-
'
Q

(no visible roots - 01 dense roots throuOout = inax points) 0
3 0-4 S 3

r
1 Impact by a;riculture or livestock production
--
.

(substantial impact-
0; no evidence-max points).
(}- 5
0-4#.
0
-S
4

16 Preseuce.of riffle-poolfripple=pool complexes

p
0'
3
5
0
4
(no riffles/ri
p les or pools - 0: well-developed- max rots) - 0
E,

?i

17 Habitat complexity
,

'
'

0-6

0 6

0 6.

3
(Little or no habitat - 0: tre uent
varied habitats
- max
points) x
,
Canopy coverage over'strearnbed

(no shading vegetation-=0, continuous cario u- max olntsl 0 5 0; _ - 0' 5. 0

Z
1
19 Substrate embeddedness
=

-
(deeply embedded = (?. loose structure = max} 0-4 0 3

Presence of stream invertebrates
20
s.
(no evidence = 0; common. numerous types -.max points)-
Y!-sv 0-4 0 5 2
CJi Presence of-amphibians

1
0-4
0 4
2
?.
(no evidence = 0; common, tnimerous types max po

Presence of fish
22
?
0 -4
0- 4,-
-
fj'
2
(no evidence
0; common, numerous types A max points) ,
Evidence of wildlife use
23
'

(no- evidence 0; abundant` evidence Max Points) 0--6- 0 0
?ri A
if
f
l :
sc
t
H.a ry
i• ..•E {{ .. ?.w i . )'i, t4-_t `'f 'c••.. •'TsP1 4 C S?•.r.
.

gO Act:i
'
,i
53
t r ?;,
*These characteristics are not assessed in coastal streams.
OFFICE USE ONLY: USACE AID# DWQ #
SCP4 - Unimportant Intermittent Stream B
STREAM QUALITY ASSESSMENT WORKSHEET - f r
1. Applicant's Name: Asheville Regional Airport Authority 2. Evaluator's Name: Matt Jenkins and Paul Bright
3. Date of Evaluation: 6/12/07 4. Time of Evaluation: 1:30 pm
5. Name of Stream: UT to Broad River 6. River Basin: Broad
7. Approximate Drainage Area: 5 acres 8. Stream Order: First
Length or Reach _ ,aluated: 100 f
10. Buncombe
11. Location of reach under evaluation (include nearby roads and landmarks): Travel south on Interstate 85 (I-85) and merge onto
I-26 West via Exit 70 toward Asheville. Travel approximately 48.6 miles and take the NC-280 exit (Exit 40) toward Asheville
Regional Airport / Arden. Travel approximately 0.2 mile and turn left onto New Airport Road / NC-280. Travel approximately 0.2
mile and turn right onto General Aviation Drive. Travel approximately 0.3 mile and the site will be straight ahead.
12. Site Coordinates (if known): N35.445430W82.54094°
13. Proposed Channel Work (if any): N/A
14. Recent Weather Conditions: no rain within the past 48 hours
15. Site conditions at time of visit: sunny 80 degrees
16. Identify any special waterway classifications known: -Section 10 -Tidal Waters -Essential Fisheries Habitat
-Trout Waters -Outstanding Resource Waters _ Nutrient Sensitive Waters -Water Supply Watershed (I-IV)
17. Is there a pond or lake located upstream of the evaluation point? YES NO If yes, estimate the water surface area:
18. Does channel appear on USGS quad map? YEN 19. Does channel appear on USDA Soil Survey? YES
20. Estimated Watershed Land Use: _% Residential _% Commercial _% Industrial _% Agricultural
% Forested 100 % Cleared / Logged _% Other ( )
21. Bankfull Width: 34' 22. Bank Height (from bed to top of bank): 34'
23. Channel slope down center of stream: -Flat (0 to 2%) X Gentle (2 to 4%) -Moderate (4 to 10%) -Steep (>10%)
24. Channel Sinuosity: Straight -Occasional Bends X Frequent Meander -Very Sinuous -Braided Channel
Instructions for completion of worksheet (located on page 2): Begin by determining the most appropriate ecoregion based on
location, terrain, vegetation, stream classification, etc. Every characteristic must be scored using the same ecoregion. Assign points to each
characteristic within the range shown for the ecoregion. Page 3 provides a brief description of how to review the characteristics identified in the
worksheet. Scores should reflect an overall assessment of the stream reach under evaluation. If a characteristic cannot be evaluated due to site or
weather conditions, enter 0 in the scoring box and provide an explanation in the comment section. Where there are obvious changes in the character
of a stream under review (e.g., the stream flows from a pasture into a forest), the stream may be divided into smaller reaches that display more
continuity, and a separate form used to evaluate each reach. The total score assigned to a stream reach must range between 0 and 100, with a score of
100 representing a stream of the highest quality.
Total Score (from reverse): 27 Comments:
Evaluator's Signature Date
This channel evaluation form is intended to be used only as a guide to assist landowners and environmental professionals in
gathering the data required by the United States Army Corps of Engineers in order to make a preliminary assessment of
stream quality. The total score resulting from the completion of this form is subject to USACE approval and does not imply a
particular mitigation ratio or requirement. Form subject to change - version 05/03. To Comment, please call 919-876-8441 x 26.

STREAM QUALITY ASSESSMENT WORKSHEET
S
4
C
P
Unimportant Intermitt
ent Stream B
?
?
?I
(
?r
r y
CHA
RAC
RIS
I {??
{{ ^'-T?V+?
I ,
I. C 3'S r
1 ??
?r,l'A
I
-
T

^
Presence of flog / persistent pools? in stream 0 4
l
(no now or saturation - 0; stronu flaw = max points) 0-5 5, 0
Evidence of past human alteration

lexi nsive alteration 0-- no alteration - maxc o-t,) 0-6, 0 5 0 5 2
Riparian cone
0 -4 t) ?
I 0
?u b t1: r - U; ?uti? us, 4idz l}u1ic1 . tnax poin )
i
a Evidence of nutrient or chemical discharges
e?,teasi?-e discll?irr=es 0: no discharges - max points 1
Groundwater disch:ir -e
_ fno di4char,e - 0` 5 niiLs, scc s, ,4ellands, etc. =Imti points)
0-3
0-4 o-4
1
..
6 Presence of adjacentlloodplain
('no flood lain- = 0_ extensive florid lain = max points) 0-4 0,-4, 0-2", 0

Entrenchment /lloodplain access
'

(deeply enn-enched- 0; frequent 'floodin,-max oinm,} 0`- 0
L4 0-2' 1
Presence of adjacent wetlands- 0
6 ,r
- 0

(no wetlands - 0. large adjacent wetlands= =x points) - - 0-2 0
Channel: sinuosity
(extensive channelization - 0.- natural meander niax points) ' 2

•
r
10 Sediment input'
0-5
0, ?
4 -
0
2
. lxxen live denn5itinn- 0, little nr nn reriimrnt - mnY nnintiE r
L l Size B diversity of channel bed substrate
(dine, homogenous = 0; large, diverse sizes F= max oints
3
2
*These characteristics are not assessed in coastal streams.
OFFICE USE ONLY: USACE AID# DWQ #
i i
SCP5 - Perennial Stream C
STREAM QUALITY ASSESSMENT WORKSHEET Q,--f
1. Applicant's Name: Asheville Regional Airnort Authority 2. Evaluator's Name: Matt Jenkins and Paul Bright
3. Date of Evaluation: 6/12/07 4. Time of Evaluation: 2:30 pm
5. Name of Stream: UT to Broad River 6. River Basin: Broad
i. Approximate Drainage Area: 5 acres
8. Stream Order: First
i. ;L1; `ia'tC i C
11. Location of reach under evaluation (include nearby roads and landmarks): Travel south on Interstate 85 (1-85) and merge onto
I-26 West via Exit 70 toward Asheville. Travel approximately 48.6 miles and take the NC-280 exit (Exit 40) toward Asheville
Regional Airport / Arden. Travel approximately 0.2 mile and turn left onto New Airport Road / NC-280. Travel approximately 0.2
mile and turn right onto General Aviation Drive. Travel approximately 0.3 mile and the site will be straight ahead.
12. Site Coordinates (if known): N35.445430W82.540940
13. Proposed Channel Work (if any): N/A
14. Recent Weather Conditions: no rain within the past 48 hours
15. Site conditions at time of visit: sunny 80 degrees
16. Identify any special waterway classifications known: -Section 10 -Tidal Waters -Essential Fisheries Habitat
-Trout Waters -Outstanding Resource Waters Nutrient Sensitive Waters -Water Supply Watershed (I-IV)
17. Is there a pond or lake located upstream of the evaluation point? YES NO If yes, estimate the water surface area:
18. Does channel appear on USGS quad map? YES (!TO) 19. Does channel appear on USDA Soil Survey? YES NO
20. Estimated Watershed Land Use: % Residential _% Commercial _% Industrial _% Agricultural
60 % Forested 40 % Cleared / Logged % Other (
21. Bankfull Width: 1-2' 22. Bank Height (from bed to top of bank): 0-2'
23. Channel slope down center of stream: X Flat (0 to 2%) _Gentle (2 to 4%) -Moderate (4 to 10%) -Steep (>10%)
24. Channel Sinuosity: Straight X Occasional Bends -Frequent Meander -Very Sinuous -Braided Channel
Instructions for completion of worksheet (located on page 2): Begin by determining the most appropriate ecoregion based on
location, terrain, vegetation, stream classification, etc. Every characteristic must be scored using the same ecoregion. Assign points to each
characteristic within the range shown for the ecoregion. Page 3 provides a brief description of how to review the characteristics identified in the
worksheet. Scores should reflect an overall assessment of the stream reach under evaluation. If a characteristic cannot be evaluated due to site or
weather conditions, enter 0 in the scoring box and provide an explanation in the comment section. Where there are obvious changes in the character
of a stream under review (e.g., the stream flows from a pasture into a forest), the stream may be divided into smaller reaches that display more
continuity, and a separate form used to evaluate each reach. The total score assigned to a stream reach must range between 0 and 100, with a score of
100 representing a stream of the highest quality.
Total Score (from reverse): 55 Comments:
Evaluator's Signature Date
This channel evaluation form is intended to be used only as a guide to assist landowners and environmental professionals in
gathering the data required by the United States Army Corps of Engineers in order to make a preliminary assessment of
stream quality. The total score resulting from the completion of this form is subject to USACE approval and does not imply a
particular mitigation ratio or requirement. Form subject to change - version 05/03. To Comment, please call 919-876-8441 x 26.

11
STREAM QUALITY ASSESSMENT WORKSHEET
SCP5 - Perennial Stream C

CH 'RACTEIMSTi OREGtON,
1 ,
+YW , z
RE
r ;.?Q35tal`.;? ?Ietllil ; a a, ?.
Presence of flow / persistent pools in stream
(noflow or saturation = 0: strong flow = max omts)
Evidence of past human alteration

est?ns7ac ,dteration - 0; n0 alteration - mHx .OintS j 0,_ 6 0 5 0- S 3
Riparian zone
(noxbuffer =0: contiguous, w7dehuFfer'=maxpoints) h 0-4 J 5
F,:,+:denc,., of nutrsent or iheiuical dischar es
no Alscililnn cs - 21,CK DCi II1CS I
-
_ Gronndwater dischar,e

(no discharac = 0_ s rmgs., ,cr: _s. 'wetlands. CLC. mLL\ Points) 3
Presence of adjacent floodplain
0-4
(no flood lain -- 0, extensive flood .lain = max points) 0-4 ?. 0-2 2
Entrenchment/ flood'plain access

(deeply entrenched = 0_ free tent flooding = max points) 0- 0-4, 0_2 2

8 Presence of adjacent wetlands
-
'
('no wetlands = 0: lars,e adjacent wetlands= max points) Q - 6' 0 4 = (y•_?
F.- 2
g Channel sinuosity ' '

('extensive channelization - 0: natural."meander - max omts) , 5
Q 0 4 Ot }, 1
,Y. to Sediment input _
0
J
0-4
4
2
f['.YYPTl?7L'P fIPT111C4ti(1T7- n' (tf11l? i,' nn ?Pr?imenY= mnv:.?ninh .

Size ?c diversity of channel bed substrate'
I l (fine, homo,2enous--0; large, diverse sties =mar Dints : 0 4 Ot-'S 3
. l2 r.vruence of cnannet incision or wutenmg.
0
- l
0
5

4
i
(deeply incised= 0- stable bed & banks = mar oimb
1
-
?. ?;.
t' Presence of major baukfailures
0
(severe erosion 0
no erosion
stable banks- max
oints) -'S 4
,
,
p
14 Root depth and density on, banks
'
(no visible roots 0; dense, roots throughout -max Points) 0
- ?? 0 ¢
.. ?- j- _ 3

1
5 Impact by agricultureor livestock production
°
.
(substantial tm , et=0, no evidence = max. points) - S..
0.° U-4, 4. 0
;. 4
l6 Presence of riffle-pool/ripple-pool complexes
(no r7.ffles'ri Iea or cols = 0; well-deg elo e = rnax o mvo 0',- 0 - 5 0-- 6 3
1, Habitat complexity 4

s ;
-
(little or no habitat O, frequent, varied habitats = ma Dints) 0-6 4' 6
, 3
Canopy coverage ovenstreambed
a
5
0
5
' (no shading vegetation = 0; continuous canopy - rnzx otmts,)? - _ 4

[g Substrate embeddedness - M
0
4-4
2
(deg ly embedded= 0: louses truclure = max) -
Presence of stream invertebrates
(no evidence = 0, common; numerous t? es = max oints} 0 _ 4 0` 5 " 0 - 1

1 Presence of amphibians
:

Q`
(no evidence 0_ common, numerous types = tnax Darts} ff = 4 0
-,4, .: 0, .4 1

°? Presence of fish:
?

(no evidence =0; common, numerous types - max points) 0 = l:, 0 - 4
, . 0

Zj Evidence of wildlife use
0'-- 6
a- 3
0 --s:
0
;n (no evidence - 0; abundant 'evidenee-= max points)'
* These characteristics are not assessed in coastal streams.
55
2
APPROVED JURISDICTIONAL DETERMINATION FORM
U.S. Army Corps of Engineers
This form should be completed by following the instructions provided in Section IV of the JD Form Instructional Guidebook.
SECTION I: BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD): July 16, 2007
B. DISTRICT OFFICE, FILE NAME, AND NUMBER:Asheville Regional Office
C. PROJECT LOCATION AND BACKGROUND INFORMATION: The Asheville Regional Airport Expansion site is located
adjacent to Highway 26, on existing Airport Authority property in Fletcher, North Carolina, Perennial Stream A-Upper Reach
State:NC County/parish/borough: Buncombe City: Fletcher
., CIlt? ...)L.1 Cil<<at?; _,I ,„ !lii,?t1? i? UC22 Ce PLC ('lL .Gi „1d1.;: ._?l C. ?_ .-?t.l_? ??, ?tl?. J?..: °?_??° ;V.
?ni•,,.rs-al Tt°.ua? ...-,. `vi:.._aia-:
Name of nearest waterbody: French Broad River
Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource flows: French Broad River
Name of watershed or Hydrologic Unit Code (HUC): 06010105
Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request.
? Check if other sites (e.g., offsite mitigation sites, disposal sites, etc...) are associated with this action and are recorded on a
different JD form.
D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):
Office (Desk) Determination. Date: June 19, 2007
Field Determination. Date(s): June 13, 2007
SECTION II: SUMMARY OF FINDINGS
A. RHA SECTION 10 DETERMINATION OF JURISDICTION.
There re no "navigable waters of the U.S." within Rivers and Harbors Act (RHA) jurisdiction (as defined by 33 CFR part 329) in the
review area. [Required]
Waters subject to the ebb and flow of the ride.
[[ Waters are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
Explain:
B. CWA SECTION 404 DETERMINATION OF JURISDICTION.
"There .Are "waters of the U.S." within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area. [Required]
1. Waters of the U.S.
a. Indicate presence of waters of U.S. in review area (check all that apply): 1
Q TNWs, including territorial seas
Q Wetlands adjacent to TNWs
® Relatively permanent watersz (RPWs) that flow directly or indirectly into TNWs
Q Non-RPWs that flow directly or indirectly into TNWs
Y Wetlands directly abutting RPWs that flow directly or indirectly into TNWs
Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs
Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs
Impoundments of jurisdictional waters
Isolated (interstate or intrastate) waters, including isolated wetlands
b. Identify (estimate) size of waters of the U.S. in the review area:
Non-wetland waters: 17461inear feet: width (ft) and/or 0.256 acres.
Wetlands: 0.209 acres.
c. Limits (boundaries) of jurisdiction based on: 1987 Deleation,Man "i
Elevation of established OHWM (if known):
2. Non-regulated waters/wetlands (check if applicable):3
Potentially jurisdictional waters and/or wetlands were assessed within the review area and determined to be not jurisdictional.
Explain:
Boxes checked below shall be supported by completing the appropriate sections in Section III below.
Z For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally"
(e.g., typically 3 months).
3 Supporting documentation is presented in Section III.F.
SECTION III: CWA ANALYSIS
A. TNWs AND WETLANDS ADJACENT TO TNWs
The agencies will assert jurisdiction over TNWs and wetlands adjacent to TNWs. If the aquatic resource is a TNW, complete
Section III.A.1 and Section III.D.1. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections III.A.1 and 2
and Section III.D.1.; otherwise, see Section IH.B below.
1. TNW
Identify TNW:
Summarize rationale supporting detenmination:
Wetland adjacent to TN NA
jUi111118rIYJ T'fttl Ull Dill: SIRJ?iI 1 Ih CURC1Ll?K>li ila? ':????CL?llili l? .llJ iiti?;l i. ?;
B. CHARACTERISTICS OF TRIBUTARY (THAT IS NOT A TNW) AND ITS ADJACENT WETLANDS (IF ANY):
This section summarizes information regarding characteristics of the tributary and its adjacent wetlands, if any, and it helps
determine whether or not the standards for jurisdiction established under Rapanos have been met.
The agencies will assert jurisdiction over non-navigable tributaries of TNWs where the tributaries are "relatively permanent
waters" (RPWs), i.e. tributaries that typically flow year-round or have continuous flow at least seasonally (e.g., typically 3
months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round
(perennial) flow, skip to Section HI.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial flow,
skip to Section HI.D.4.
A wetland that is adjacent to but that does not directly abut an RPW requires a significant nexus evaluation. Corps districts and
EPA regions will include in the record any available information that documents the existence of a significant nexus between a
relatively permanent tributary that is not perennial (and its adjacent wetlands if any) and a traditional navigable water, even
though a significant nexus finding is not required as a matter of law.
If the waterbodya is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the
waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must
consider the tributary in combination with all of its adjacent wetlands. This significant nexus evaluation that combines, for
analytical purposes, the tributary and all of its adjacent wetlands is used whether the review area identified in the JD request is
the tributary, or its adjacent wetlands, or both. If the JD covers a tributary with adjacent wetlands, complete Section III.B.1 for
the tributary, Section HI.B.2 for any onsite wetlands, and Section HI.B.3 for all wetlands adjacent to that tributary, both onsite
and offsite. The determination whether a significant nexus exists is determined in Section IH.C below.
1. Characteristics of non-TNWs that flow directly or indirectly into TNW
(i) General Area Conditions-
Watershed size: 1,196,80Uac
Drainage area: 1.68 ':
Average annual rainfall: 38.1 inches
Average annual snowfall: 15.6 inches
(ii) Physical Characteristics:
(a) Relationship with TNW:
? Tributary flows directly into TNW.
® Tributary flows through tributaries before entering TNW.
Project waters are 1 (or less river miles from TNW.
Project waters are I (or,fess river miles from RPW.
Project waters are I (orless aerial (straight) miles from TNW.
Project waters are I (or 's aerial (straight) miles from RPW.
Project waters cross or serve as state boundaries. Explain: N/A.
Identify flow route to TNW5: Perennial Stream A and is met by Unimportant Intermittent Stream B, then flows through
project area to French Broad River.
a Note that the Instructional Guidebook contains additional information regarding swales, ditches, washes, and erosional features generally and in the and
West.
5 Flow route can be described by identifying, e.g., tributary a, which flows through the review area, to flow into tributary b, which then flows into TNW.
Tributary stream order, if known: 1.
(b) General Tributary Characteristics (check all that apply):
Tributary is: ® Natural
? Artificial (man-made). Explain:
? Manipulated (man-altered). Explain:
Tributary properties with respect to top of bank (estimate):
Average width: 4-5 feet
Average depth: 3-4 feet
Average side slopes: N-ertical (1:1 or less).
Primary tributary substrate composition (check all that apply):
F7 Silts ? Sands Concrc'e
>J L`CtU? 1 _.. C. I .Vi UCi?
? Bcdroci< ? `. egetaticai. ;pe;'°'o cove;:
? Other. Explain:
Tributary condition/stability [e.g., highly eroding, sloughing banks]. Explain: moderate erosion and an incised channel.
Presence of run/riffle/pool complexes. Explain: moderate riffle/pool complexes.
Tributary geometry: Vleatdern
Tributary gradient (approximate average slope): 2-4 %
(c) Flow:
Tributary provides for: Seasonal flow
Estimate average number of flow events in review area/year: 1-22
Describe flow regime:
Other information on duration and volume:
Surface flow is: Discret. Characteristics:
Subsurface flow: 1'e§. Explain findings: Groundwater present in channel, no rain within last 48 hours.
? Dye (or other) test performed:
Tributary has (check all that apply):
® Bed and banks
® OHWM6 (check all indicators that apply):
? clear, natural line impressed on the bank ?
® changes in the character of soil ?
? shelving ?
® vegetation matted down, bent, or absent ?
® leaf litter disturbed or washed away
® sediment deposition ?
? water staining ?
? other (list):
? Discontinuous OHWM.7 Explain:
the presence of litter and debris
destruction of terrestrial vegetation
the presence of wrack line
sediment sorting
scour
multiple observed or predicted flow events
abrupt change in plant community
If factors other than the OHWM were used to determine lateral extent of CWA jurisdiction (check all that apply):
High Tide Line indicated by: ? Mean High Water Mark indicated by:
? oil or scum line along shore objects ? survey to available datum;
? fine shell or debris deposits (foreshore) ? physical markings;
? physical markings/characteristics ? vegetation lines/changes in vegetation types.
? tidal gauges
? other (list):
(iii) Chemical Characteristics:
Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.).
Explain: clear water.
Identify specific pollutants, if known:
6A natural or man-made discontinuity in the OHWM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows underground, or where
the OHWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to the waterbody's flow
regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above and below the break.
'Ibid.
(iv) Biological Characteristics. Channel supports (check all that apply):
® Riparian corridor. Characteristics (type, average width):
? Wetland fringe. Characteristics:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
2. Characteristics of wetlands adjacent to non-TNW that flow directly or indirectly into TNW
(i) Physical Characteristics:
(a) General Wetland Characteristics:
°r?mertics:
N'ctland type. CL.-,plain:
Wetland quality. Explain:
Project wetlands cross or serve as state boundaries. Explain:
(b) General Flow Relationship with Non-TNW:
Flow is: PickLLW. Explain:
Surface flow is: Pick L
Characteristics:
Subsurface flow: Pi" . Explain findings:
? Dye (or other) test performed:
(c) Wetland Adjacency Determination with Non-TNW:
? Directly abutting
? Not directly abutting
? Discrete wetland hydrologic connection. Explain:
? Ecological connection. Explain:
? Separated by berm/barrier. Explain:
(d) Proximity (Relationship) to TNW
Project wetlands are 1'ieb- U river miles from TNW.
Project waters are PrekLi aerial (straight) miles from TNW.
Flow is from: rj&k. LW.
Estimate approximate location of wetland as within the PickLi floodplain.
(ii) Chemical Characteristics:
Characterize wetland system (e.g., water color is clear, brown, oil film on surface; water quality; general watershed
characteristics; etc.). Explain:
Identify specific pollutants, if known:
(iii) Biological Characteristics. Wetland supports (check all that apply):
? Riparian buffer. Characteristics (type, average width):
? Vegetation type/percent cover. Explain:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
3. Characteristics of all wetlands adjacent to the tributary (if any)
All wetland(s) being considered in the cumulative analysis: X(or.
Approximately ( ) acres in total are being considered in the cumulative analysis.
For each wetland, specify the following:
Directly abuts? (Y/N) Size (in acres) Directly abuts? (Y/N) Size (in acres)
Summarize overall biological, chemical and physical functions being performed:
C. SIGNIFICANT NEXUS DETERMINATION
A Junificant aexas aaivsis ?y iii assess iiie ilo%v c}iaractenstics and functions of the Eributar-; itself anti whe i'ancdons performed
by any wetlands adjacent to the tributary to determine if they significantly affect the chemical, physical, and biological integrity
of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent
wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological integrity of a TNW.
Considerations when evaluating significant nexus include, but are not limited to the volume, duration, and frequency of the flow
of water in the tributary and its proximity to a TNW, and the functions performed by the tributary and all its adjacent
wetlands. It is not appropriate to determine significant nexus based solely on any specific threshold of distance (e.g. between a
tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or
outside of a floodplain is not solely determinative of significant nexus.
Draw connections between the features documented and the effects on the TNW, as identified in the Rapanos Guidance and
discussed in the Instructional Guidebook. Factors to consider include, for example:
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or flood waters to
TNWs, or to reduce the amount of pollutants or flood waters reaching a TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support functions for fish and
other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that
support downstream foodwebs?
• Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or
biological integrity of the TNW?
Note: the above list of considerations is not inclusive and other functions observed or known to occur should be documented
below:
1. Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain
findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section III.D:
2. Significant nexus findings for non-RPW and its adjacent wetlands, where the non-RPW flows directly or indirectly into
TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its
adjacent wetlands, then go to Section III.D:
3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of
presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to
Section III.D:
D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERS/WETLANDS ARE (CHECK ALL
THAT APPLY):
1. TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area:
TNWs: linear feet width (ft), Or, acres.
Wetlands adjacent to TNWs: acres.
2. RPWs that flow directly or indirectly into TNWs.
Tributaries of TNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that
tributary is perennial: Perennial Stream A-Upper Reach flows through the middle of the project site and is 243 linear feet with
widths of 4-5 feet. Stream A exhibited groundwater flow, riffle/pool sequences, moderate sinuosity, and a strong presence of
amphibians Stream A-Upper Reach scored 49 out of a possible 100 points on the USACE Stream Quality Assesment form and
33.5 out of 70 points on the NC DWQ Stream ID form .
Tributaries of TNW where tributaries have continuous flow "seasonally" (e.g., typically three months each year) are
jurisdictional. Data supporting this conclusion is provided at Section III.B. Provide rationale indicating that tributary flows
seasonally:
Provide estimates for jurisdictional waters in the review area (check all that apply):
71 Tributary waters: 243 linear feet4-5width (ft).
? Other non-wetland waters: acres.
Identify type(s) of waters:
3. Non-RPWss that flow directly or indirectly into TNWs.
? Waterbody that is not a TNW or an RPW, but flows directly or indirectly into a TNW, and it has a significant nexus with a
TNW is jurisdictional. Data supporting this conclusion is provided at Section III. C.
Provide estimates for jurisdictional waters within the review area (check all that apply):
_ ether non-,n-etlanci -a?atcris: ,?; __-.
identify type(,) of :vaLcrs:
4. Wetlands directly abutting an RPW that flow directly or indirectly into TNWs.
Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands.
Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale
indicating that tributary is perennial in Section III.D.2, above. Provide rationale indicating that wetland is
directly abutting an RPW:
Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary is
seasonal in Section 111.13 and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly
abutting an RPW:
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
5. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly into TNWs.
Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent
and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisidictional. Data supporting this
conclusion is provided at Section III.C.
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
6. Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs.
Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and
with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisdictional. Data supporting this
conclusion is provided at Section III.C.
Provide estimates for jurisdictional wetlands in the review area: acres.
7. Impoundments of jurisdictional waters.9
As a general rule, the impoundment of a jurisdictional tributary remains jurisdictional.
Demonstrate that impoundment was created from "waters of the U.S.," or
Demonstrate that water meets the criteria for one of the categories presented above (1-6), or
? Demonstrate that water is isolated with a nexus to commerce (see E below).
E. ISOLATED [INTERSTATE OR INTRA-STATE] WATERS, INCLUDING ISOLATED WETLANDS, THE USE,
DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY
SUCH WATERS (CHECK ALL THAT APPLY):to
? which are or could be used by interstate or foreign travelers for recreational or other purposes.
? from which fish or shellfish are or could be taken and sold in interstate or foreign commerce.
which are or could be used for industrial purposes by industries in interstate commerce.
?, Interstate isolated waters. Explain:
Nee Footnote # 3.
9 To complete the analysis refer to the key in Section III.13.6 of the Instructional Guidebook.
10 Prior to asserting or declining CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA HQ for
review consistent with the process described in the Corps/EPA Memorandum Regarding CWA Act Jurisdiction Following Rapanos.
E] Other factors. Explain:
Identify water body and summarize rationale supporting determination:
Provide estimates for jurisdictional waters in the review area (check all that apply):
? Tributary waters: linear feet width (ft).
? Other non-wetland waters: acres.
Identify type(s) of waters:
? Wetlands: acres.
'Jd °I-.1??R1SD1CTlO u_'.L WATERS, I vCLUDING AV!,E 'L.- NDS (CHECK ALL THAT APPL i'?:
it :x>tenr.?t wedan?s .?.er? assessed ,within .he re?ie.? a?-a, tneee Lueas slid 11101 meet the ?ritera n the ? )? ? '017,> , t ?7 '_n ?.?
,Netland Delineation Manual andior appropriate Regional Supplements.
Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce.
? Prior to the Jan 2001 Supreme Court decision in "SWANCC," the review area would have been regulated based solely on the
"Migratory Bird Rule" (MBR).
? Waters do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction. Explain:
? Other: (explain, if not covered above):
Provide acreage estimates for non jurisdictional waters in the review area, where the sole potential basis of jurisdiction is the MBR
factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture), using best professional
judgment (check all that apply):
Non-wetland waters (i.e., rivers, streams): linear feet width (ft).
F Lakes/ponds: acres.
[j Other non-wetland waters: acres. List type of aquatic resource:
? Wetlands: acres.
Provide acreage estimates for non jurisdictional waters in the review area that do not meet the "Significant Nexus" standard, where such
a finding is required for jurisdiction (check all that apply):
? Non-wetland waters (i.e., rivers, streams): linear feet, width (ft).
? Lakes/ponds: acres.
? Other non-wetland waters: acres. List type of aquatic resource:
Wetlands: acres.
SECTION IV: DATA SOURCES.
A. SUPPORTING DATA. Data reviewed for JD (check all that apply - checked items shall be included in case file and, where checked
and requested, appropriately reference sources below):
Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant:
Data sheets prepared/submitted by or on behalf of the applicant/consultant.
® Office concurs with data sheets/delineation report.
? Office does not concur with data sheets/delineation report.
? Data sheets prepared by the Corps:
? Corps navigable waters' study:
U.S. Geological Survey Hydrologic Atlas:
? USGS NHD data.
? USGS 8 and 12 digit HUC maps.
U.S. Geological Survey map(s). Cite scale & quad name:Skyland, North Carolina, 1991.
USDA Natural Resources Conservation Service Soil Survey. Citation:
Q National wetlands inventory map(s). Cite name:
? State/Local wetland inventory map(s):
Q FEMA/FIRM maps:
100-year Floodplain Elevation is: (National Geodectic Vertical Datum of 1929)
Q Photographs: ? Aerial (Name & Date):
or ® Other (Name & Date): See attached report.
Q Previous determination(s). File no. and date of response letter:
Applicable/supporting case law:
Q Applicable/supporting scientific literature:
Other information (please specify):
B. ADDITIONAL COMMENTS TO SUPPORT JD:
APPROVED JURISDICTIONAL DETERMINATION FORM
U.S. Army Corps of Engineers
This form should be completed by following the instructions provided in Section W of the JD Form Instructional Guidebook
SECTION I: BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD): July 16, 2007
B. DISTRICT OFFICE, FILE NAME, AND NUMBER:Asheville Regional Office
C. PROJECT LOCATION AND BACKGROUND INFORMATION: The Asheville Regional Airport Expansion site is located
adjacent to Highway 26, on existing Airport Authority property in Fletcher, North Carolina, Perennial Stream A, Wetland AA and BB
State:NC County/parish/borough: Buncombe City: Fletcher
?. .;n Cpl cool dil.dl,?„ iiitr tlil?_ in ?iG Tile ileCllnlil formta .
_: nivcrai Trans err ' lercator:
Name of nearest waterbody: French Broad River
Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource flows: French Broad River
Name of watershed or Hydrologic Unit Code (HUC): 06010105
Q Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request.
Q Check if other sites (e.g., offsite mitigation sites, disposal sites, etc...) are associated with this action and are recorded on a
different JD form.
D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):
Q Office (Desk) Determination. Date: June 19, 2007
0 Field Determination. Date(s): June 13, 2007
SECTION H: SUMMARY OF FINDINGS
A. RHA SECTION 10 DETERMINATION OF JURISDICTION.
There Are n,S "navigable waters of the U.S." within Rivers and Harbors Act (RHA) jurisdiction (as defined by 33 CFR part 329) in the
review ,u-ca. [Required]
Q Waters subject to the ebb and flow of the tide.
? Waters are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
Explain:
B. CWA SECTION 404 DETERMINATION OF JURISDICTION.
There "waters of the U.S." within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area. [Required]
1. Waters of the U.S.
a. Indicate presence of waters of U.S. in review area (check all that apply): t
Q TNWs, including territorial seas
Wetlands adjacent to TNWs
Relatively permanent watersz (RPWs) that flow directly or indirectly into TNWs
Q Non-RPWs that flow directly or indirectly into TNWs
El Wetlands directly abutting RPWs that flow directly or indirectly into TNWs
Q Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs
? Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs
? Impoundments of jurisdictional waters
Isolated (interstate or intrastate) waters, including isolated wetlands
b. Identify (estimate) size of waters of the U.S. in the review area:
Non-wetland waters: 17461inear feet: width (ft) and/or 0.256 acres.
Wetlands: 0.209 acres.
c. Limits (boundaries) of jurisdiction based on 19Eel_ize_s_ i'Vlanua?
Elevation of established OHWM (if known):
2. Non-regulated waters/wetlands (check if applicable):3
Potentially jurisdictional waters and/or wetlands were assessed within the review area and determined to be not jurisdictional.
Explain:
t Boxes checked below shall be supported by completing the appropriate sections in Section III below.
z For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally"
(e.g., typically 3 months).
3 Supporting documentation is presented in Section III.F.
SECTION III: CWA ANALYSIS
A. TNWs AND WETLANDS ADJACENT TO TNWs
The agencies will assert jurisdiction over TNWs and wetlands adjacent to TNWs. If the aquatic resource is a TNW, complete
Section III.A.1 and Section III.D.1. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections III.A.1 and 2
and Section III.D.1.; otherwise, see Section III.B below.
1. TNW
Identify TNW:
Summarize rationale supporting determination:
1 ?V-tfand adjacent to T ti,v
?uunnar??e _iiion uc ;uDrt Mi that ,vea?nti IS _dLgaccnf-:
B. CHARACTERISTICS OF TRIBUTARY (THAT IS NOT A TNW) AND ITS ADJACENT WETLANDS (IF ANY):
This section summarizes information regarding characteristics of the tributary and its adjacent wetlands, if any, and it helps
determine whether or not the standards for jurisdiction established under Rapanos have been met.
The agencies will assert jurisdiction over non-navigable tributaries of TNWs where the tributaries are "relatively permanent
waters" (RPWs), i.e. tributaries that typically flow year-round or have continuous flow at least seasonally (e.g., typically 3
months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round
(perennial) flow, skip to Section IH.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial flow,
skip to Section IH.D.4.
A wetland that is adjacent to but that does not directly abut an RPW requires a significant nexus evaluation. Corps districts and
EPA regions will include in the record any available information that documents the existence of a significant nexus between a
relatively permanent tributary that is not perennial (and its adjacent wetlands if any) and a traditional navigable water, even
though a significant nexus fmding is not required as a matter of law.
If the waterbody4 is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the
waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must
consider the tributary in combination with all of its adjacent wetlands. This significant nexus evaluation that combines, for
analytical purposes, the tributary and all of its adjacent wetlands is used whether the review area identified in the JD request is
the tributary, or its adjacent wetlands, or both. If the JD covers a tributary with adjacent wetlands, complete Section HI.B.1 for
the tributary, Section III.B.2 for any onsite wetlands, and Section HI.B.3 for all wetlands adjacent to that tributary, both onsite
and offsite. The determination whether a significant nexus exists is determined in Section H LC below.
1. Characteristics of non-TNWs that flow directly or indirectly into TNW
(i) General Area Conditions:
Watershed size: 1,196,800acre
Drainage area: 65 acres
Average annual rainfall: 38.1 inches
Average annual snowfall: 15.6 inches
(ii) Physical Characteristics:
(a) Relationship with TNW:
? Tributary flows directly into TNW.
® Tributary flows through Z tributaries before entering TNW.
Project waters are 1,(760F Tess) river miles from TNW.
Project waters are 1 (or*le. river miles from RPW.
Project waters are I (or les aerial (straight) miles from TNW.
Project waters are 1` r " s aerial (straight) miles from RPW.
Project waters cross or serve as state boundaries. Explain: N/A.
Identify flow route to TNW5: Perennial Stream A and is met by Unimportant Intermittent Stream B, then flows through
project area to French Broad River.
" Note that the Instructional Guidebook contains additional information regarding swales, ditches, washes, and erosional features generally and in the and
West.
5 Flow route can be described by identifying, e.g., tributary a, which flows through the review area, to flow into tributary b, which then flows into TNW.
Tributary stream order, if known: 1.
(b) General Tributary Characteristics (check all that apply):
Tributary is: ® Natural
? Artificial (man-made). Explain:
? Manipulated (man-altered). Explain:
Tributary properties with respect to top of bank (estimate):
Average width: 4-5 feet
Average depth: 3-4 feet
Average side slopes: 2:1.
Primary tributary substrate composition (check all that apply):
n Silts ? Sands ? Concrete
?.?>i)>Ic;S J 'aluYCI J ,`iluClt
i
? Bedrock ? Vegetation. Type,''`ewer:
? Other. Explain:
Tributary condition/stability [e.g., highly eroding, sloughing banks]. Explain: moderate erosion and an incised channel.
Presence of run/riffle/pool complexes. Explain: moderate riffle/pool complexes.
Tributary geometry: Teanc nil&
Tributary gradient (approximate average slope): 2-4 %
(c) Flow:
Tributary provides for: Sesasollal flog
Estimate average number or flow events in review area/year: 0,(qr. g ate„
Describe flow regime:
Other information on duration and volume:
Surface flow is: Discrete. Characteristics:
Subsurface flow: Yes. Explain findings: Groundwater present in channel, no rain within last 48 hours.
? Dye (or other) test performed:
Tributary has (check all that apply):
® Bed and banks
® OHWM6 (check all indicators that apply):
? clear, natural line impressed on the bank ?
? changes in the character of soil ?
? shelving ?
® vegetation matted down, bent, or absent ?
® leaf litter disturbed or washed away
® sediment deposition ?
? water staining ?
? other (list):
? Discontinuous OHWM.7 Explain:
If factors other than the OHWM were used to determ
High Tide Line indicated by:
? oil or scum line along shore objects
? fine shell or debris deposits (foreshore)
? physical markings/characteristics
? tidal gauges
? other (list):
the presence of litter and debris
destruction of terrestrial vegetation
the presence of wrack line
sediment sorting
scour
multiple observed or predicted flow events
abrupt change in plant community
ne lateral extent of CWA jurisdiction (check all that apply):
Mean High Water Mark indicated by:
? survey to available datum;
? physical markings;
? vegetation lines/changes in vegetation types.
(iii) Chemical Characteristics:
Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.).
Explain: clear water.
Identify specific pollutants; if known:
6A natural or man-made discontinuity in the OHWM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows underground, or where
the OHWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to the waterbody's flow
regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above and below the break.
'Ibid.
(iv) Biological Characteristics. Channel supports (check all that apply):
® Riparian corridor. Characteristics (type, average width):
? Wetland fringe. Characteristics:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
2. Characteristics of wetlands adjacent to non-TNW that flow directly or indirectly into TNW
(i) Physical Characteristics:
(a) General Wetland Characteristics:
Prooerties:
-ved in s,._: 'N _tianu .?_ 6.02< acres a1w 'dv c ; u.. BB J.U09acrv?
`.Ietland type. c:cplain:Wetland AA-herbaceous, 'vVetiand BB-forested.
Wetland quality. Explainmatural wetlands, cleared forest area upstream.
Project wetlands cross or serve as state boundaries. Explain:
(b) General Flow Relationship with Non-TNW:
Flow is: Perennial floe. Explain: Wetland AA and BB directly abut Stream A.
Surface flow is: Discrete
Characteristics:
12".
Subsurface flow: . Explain findings: Stream A is perennial with groundwater present in channel, ground saturated to
? Dye (or other) test performed:
(c) Wetland Adjacency Determination with Non-TNW:
® Directly abutting
? Not directly abutting
? Discrete wetland hydrologic connection. Explain:
? Ecological connection. Explain:
? Separated by berm/barrier. Explain:
(d) Proximity (Relationship) to TNW
Project wetlands are l (or le river miles from TNW.
Project waters are 1 (or less aerial (straight) miles from TNW.
Flow is from: W tla to q#vigabkewatea•.
Estimate approximate location of wetland as within the 100 - 501yeM floodplain.
(ii) Chemical Characteristics:
Characterize wetland system (e.g., water color is clear, brown, oil film on surface; water quality; general watershed
characteristics; etc.). Explain: Wetland AA is located in the central portion of the property, adjacent to Stream A and is
approximately 0.028 acre in size (Figure 1, enclosed). Dominant vegetation within this area includes silky dogwood
(Corpus amomum), Christmas fern (Polystichum acrostichoides), cinnamon fern (Osmunda cinnamomea), common rush
(Juncus effuses), and jewelweed (Impatiens capensis). This area exhibited low chroma soils (2.5Y 4/1), few prominent
mottles (5YR 4/6), drainage patterns, and saturation within the upper 12 inches of the soil profile. A Routine On-Site
Determination Form representative of Wetland AA is enclosed (DP2).
Wetland BB is located is located downstream of Perennial Stream A and Unimportant Intermittent Stream B (Figure 1,
enclosed). This forested linear wetland is approximately 0.009 acre is size. Dominant vegetation within this area
includes red maple (Acer rubrum), ironwood (Carpinus caroliniana), hazel alder (Alnus serrulata), common rush (Juncus
effuses), and various sedges (Carex spp.). This area exhibited low chroma soils (2.5Y 4/1), few distinct mottles (5YR
4/6), drainage patterns, and saturation within the upper 12 inches of the soil profile. A Routine On-Site Determination
Form representative of Wetland BB is enclosed (DP3). A Photograph of Wetland BB is enclosed as Photographs E.
Identify specific pollutants, if known:
(iii) Biological Characteristics. Wetland supports (check all that apply):
? Riparian buffer. Characteristics (type, average width):
® Vegetation type/percent cover. Explain:All plant species are FAC or wetter.
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
Characteristics of all wetlands adjacent to the tributary (if any)
All wetland(s) being considered in the cumulative analysis:
Approximately ( 0.037 ) acres in total are being considered in the cumulative analysis.
For each wetland, specify the following:
Directly abuts? (Y/N) Size (in acres) Directly abuts? (Y/N) Size (in acres)
Wetland AA Y 0.028 Wetland BB 0.009
Summarize overall biological, chemical and physical functions being performed: Wetland AA is located in the central
portion of the property, adjacent to Stream A and is approximately 0.028 acre in size (Figure 1, enclosed). Dominant vegetation
within this area includes silky dogwood (Cornus amomum), Christmas fern (Polystichum acrostichoides), cinnamon fern (Osmunda
cinnamomea), common rush (Juncus effuses), and jewelweed (Impatiens capensis). This area exhibited low chroma soils (2.5Y
1). re,,v prominent mottle 5`?R -1'<?)_ irainage pattcrns_ and saturation within the joper !? inches of the soil ?)roflle. A. Routine
n-pit c,?nninuiiun ?o, .n curs, [u«[i sc )i _-_,closed I DP2,
Wetland BB is located is located downstream of Perennial Stream A and Unimportant Intermittent Stream B (Figure 1, enclosed).
This forested linear wetland is approximately 0.009 acre is size. Dominant vegetation within this area includes red maple (Acer
rubrum), ironwood (Carpinus caroliniana), hazel alder (Alnus serrulata), common rush (Juncus effuses), and various sedges (Carex
spp.). This area exhibited low chroma soils (2.5Y 4/1), few distinct mottles (5YR 4/6), drainage patterns, and, saturation within the
upper 12 inches of the soil profile. A Routine On-Site Determination Form representative of Wetland BB is enclosed (DP3). A
Photograph of Wetland BB is enclosed as Photographs E..
C. SIGNIFICANT NEXUS DETERMINATION
A significant nexus analysis will assess the flow characteristics and functions of the tributary itself and the functions performed
by any wetlands adjacent to the tributary to determine if they significantly affect the chemical, physical, and biological integrity
of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent
wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological integrity of a TNW.
Considerations when evaluating significant nexus include, but are not limited to the volume, duration, and frequency of the flow
of water in the tributary and its proximity to a TNW, and the functions performed by the tributary and all its adjacent
wetlands. It is not appropriate to determine significant nexus based solely on any specific threshold of distance (e.g. between a
tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or
outside of a floodplain is not solely determinative of significant nexus.
Draw connections between the features documented and the effects on the TNW, as identified in the Rapanos Guidance and
discussed in the Instructional Guidebook. Factors to consider include, for example:
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or flood waters to
TNWs, or to reduce the amount of pollutants or flood waters reaching a TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support functions for fish and
other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that
support downstream foodwebs?
• Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or
biological integrity of the TNW?
Note: the above list of considerations is not inclusive and other functions observed or known to occur should be documented
below:
1. Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain
findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section III.D:
2. Significant nexus findings for non-RPW and its adjacent wetlands, where the non-RPW flows directly or indirectly into
TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its
adjacent wetlands, then go to Section IILD:
3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of
presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to
Section III.D:
D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERS/WETLANDS ARE (CHECK ALL
THAT APPLY):
1. TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area:
? TNWs: linear feet width (ft), Or, acres.
Wetlands adjacent to TNWs: acres.
2. RPWs that flow directly or indirectly into TNWs.
Tributaries of TNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that
tributary is perennial: Stream A flows through the middle portion of the property and is approximately 1,540 linear feet in
length (Figure 1, enclosed). This channel exhibited average ordinary high water widths of 4-5 feet, perennial flow, moderate
sinuosity, and substrate consisting of fine sand to small cobbles. Biological sampling of Stream A resulted in a weak presence
of crayfish and amphibians, and a weak presence of benthic macroinvertebrates. USACE Stream Quality Assessment scores
for Perennial Stream A ranged from 49 to 53 out of a possible 100 points and ranged from 33.5 to 36.5 out of 71 possible
points on the NCDWQ Stream Classification Form, indicating perennial status (SCP1 through SCP3, enclosed). Photographs
of Perennial Stream A are enclosed as Photographs A and B.
Tribmtir.e.,; nt T\ ,V 'vlerc RibLltarles Zia ?c)wi uolis 9oVt iC::1SUtta11?? !?.. `?._ r`/I)I(,?lily hhir,;; 11 onrlls '?1C ?'. lrl 1r,
UCi_,CI(ctiolltll. DUUi iLH-^oliill lilS i;UllCai?.ot1 ., iL1e4 ?a s_..C(or! 111.3
seasonally:
Provide estimates for jurisdictional waters in the review area (check all that apply):
Tributary waters: 1221 linear feet4-5width (ft).
Other non-wetland waters: acres.
Identify type(s) of waters:
3. Non-RPWs8 that flow directly or indirectly into TNWs.
Waterbody that is not a TNW or an RPW, but flows directly or indirectly into a TNW, and it has a significant nexus with a
TNW is jurisdictional. Data supporting this conclusion is provided at Section III. C.
Provide estimates for jurisdictional waters within the review area (check all that apply):
Q Tributary waters: linear feet width (ft).
Other non-wetland waters: acres.
Identify type(s) of waters:
4. Wetlands directly abutting an RPW that flow directly or indirectly into TNWs.
Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands.
Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale
indicating that tributary is perennial in Section III.D.2, above. Provide rationale indicating that wetland is
directly abutting an RPW: Wetland AA is located in the central portion of the property, adjacent to Stream A and is
approximately 0.028 acre in size (Figure 1, enclosed). Dominant vegetation within this area includes silky
dogwood (Cornus amomum), Christmas fern (Polystichum acrostichoides), cinnamon fern (Osmunda
cinnamomea), common rush (Juncus effuses), and jewelweed (Impatiens capensis). This area exhibited low
chroma soils (2.5Y 4/1), few prominent mottles (5YR 4/6), drainage patterns, and saturation within the upper 12
inches of the soil profile. A Routine On-Site Determination Form representative of Wetland AA is enclosed (DP2).
Wetland BB is located is located downstream of Perennial Stream A and Unimportant Intermittent Stream B
(Figure 1, enclosed). This forested linear wetland is approximately 0.009 acre is size. Dominant vegetation within
this area includes red maple (Acer rubrum), ironwood (Carpinus caroliniana), hazel alder (Alnus serrulata),
common rush (Juncus effuses), and various sedges (Carex spp.). This area exhibited low chroma soils (2.5Y 4/1),
few distinct mottles (5YR 4/6), drainage patterns, and saturation within the upper 12 inches of the soil profile. A
Routine On-Site Determination Form representative of Wetland BB is enclosed (DP3). A Photograph of Wetland
BB is enclosed as Photographs E.
Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary is
seasonal in Section III.B and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly
abutting an RPW:
Provide acreage estimates for jurisdictional wetlands in the review area: 0.037acres.
5. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly into TNWs.
Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent
and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisidictional. Data supporting this
conclusion is provided at Section III. C.
8See Footnote # 3.
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
6. Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs.
Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and
with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisdictional. Data supporting this
conclusion is provided at Section III.C.
Provide estimates for jurisdictional wetlands in the review area: acres.
7. Impoundments of jurisdictional waters.
As a general rule, the impoundment of a jurisdictional tributary remains jurisdictional.
Demonstrate that impoundment was created tirom "waters of the ?_ _S.." =)r
iennonstrlitd ?11?iC ovate '.,ri[eria =Cr )n,; Th2 ...1tC",ori,.s DCLtiCIIted aou?e .-01.
? Demonstrate that water is isolated with a nexus to commerce (see below).
E. ISOLATED [INTERSTATE OR INTRA-STATE] WATERS, INCLUDING ISOLATED WETLANDS, THE USE,
DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY
SUCH WATERS (CHECK ALL THAT APPLY):"
?' which are or could be used by interstate or foreign travelers for recreational or other purposes.
? from which fish or shellfish are or could be taken and sold in interstate or foreign commerce.
? which are or could be used for industrial purposes by industries in interstate commerce.
El Interstate isolated waters. Explain:
?Other factors. Explain:
Identify water body and summarize rationale supporting determination:
Provide estimates for jurisdictional waters in the review area (check all that apply):
Tributary waters: linear feet width (ft).
? Other non-wetland waters: acres.
Identify type(s) of waters:
Wetlands: acres.
F. NON-JURISDICTIONAL WATERS, INCLUDING WETLANDS (CHECK ALL THAT APPLY):
? If potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1987 Corps of Engineers
Wetland Delineation Manual and/or appropriate Regional Supplements.
Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce.
? Prior to the Jan 2001 Supreme Court decision in "SWANCC," the review area would have been regulated based solely on the
"Migratory Bird Rule" (MBR).
[ Waters do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction. Explain:
Other: (explain, if not covered above):
Provide acreage estimates for non jurisdictional waters in the review area, where the sole potential basis of jurisdiction is the MBR
factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture), using best professional
iudgment (check all that apply):
Q Non-wetland waters (i.e., rivers, streams): linear feet width (ft).
Q Lakes/ponds: acres.
? Other non-wetland waters: acres. List type of aquatic resource:
Wetlands: acres.
Provide acreage estimates for non jurisdictional waters in the review area that do not meet the "Significant Nexus" standard, where such
a finding is required for jurisdiction (check all that apply):
? Non-wetland waters (i.e., rivers, streams): linear feet, width (ft).
Lakes/ponds: acres.
?` Other non-wetland waters: acres. List type of aquatic resource:
? Wetlands: acres.
9 To complete the analysis refer to the key in Section III.D.6 of the Instructional Guidebook
to Prior to asserting or declining CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA HQ for
review consistent with the process described in the Corps/EPA Memorandum Regarding CWA Act Jurisdiction Following Rapanos.
SECTION IV: DATA SOURCES.
A. SUPPORTING DATA. Data reviewed for JD (check all that apply - checked items shall be included in case file and, where checked
and requested, appropriately reference sources below):
E, Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant:
Data sheets prepared/submitted by or on behalf of the applicant/consultant.
® Office concurs with data sheets/delineation report.
? Office does not concur with data sheets/delineation report.
Data sheets prepared by the Corps:
? Corps navigable waters' study:
?_ U.S. Geological Survey Hydrologic Atlas:
USGS uHD Plata.
U.S. Geoiogicai survey maps). Cite scale ;?c quad nanle:Skyland, North Carolina, 199 t.
USDA Natural Resources Conservation Service Soil Survey. Citation:
? National wetlands inventory map(s). Cite name:
? State/Local wetland inventory map(s):
FEMA/FIRM maps:
(? 100-year Floodplain Elevation is: (National Geodectic Vertical Datum of 1929)
? Photographs: ? Aerial (Name & Date):
or ® Other (Name & Date): See attached report.
? Previous determination(s). File no. and date of response letter:
? Applicable/supporting case law:
Applicable/supporting scientific literature:
?. Other information (please specify):
B. ADDITIONAL COMMENTS TO SUPPORT JD:
APPROVED JURISDICTIONAL DETERMINATION FORM
U.S. Army Corps of Engineers
This form should be completed by following the instructions provided in Section IV of the JD Form Instructional Guidebook.
SECTION I: BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD): July 16, 2007
B. DISTRICT OFFICE, FILE NAME, AND NUMBER:Asheville Regional Office
C. PROJECT LOCATION AND BACKGROUND INFORMATION: The Asheville Regional Airport Expansion site is located
adjacent to Highway 26, on existing Airport Authority property in Fletcher, North Carolina, Perennial Stream A-Lower Reach
State:NC County!parish/borough: Buncombe City: Fletcher
nte, o.;,ein.i.c? _>i a,, iunr i: ale ?: aecunt, ronna:i. ?ut. =t, i _? 4 ?,,n__.
Name of nearest waterbody: French Broad River
Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource flows: French Broad River
Name of watershed or Hydrologic Unit Code (HUC): 06010105
Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request.
[QCheck if other sites (e.g., offsite mitigation sites, disposal sites, etc...) are associated with this action and are recorded on a
different JD form.
D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):
[] Office (Desk) Determination. Date: June 19, 2007
Field Determination. Date(s): June 13, 2007
SECTION II: SUMMARY OF FINDINGS
A. RHA SECTION 10 DETERMINATION OF JURISDICTION.
There are no "navigable waters of the U.S." within Rivers and Harbors Act (RHA) jurisdiction (as defined by 33 CFR part 329) in the
review area. [Required]
? Waters subject to the ebb and flow of the tide.
? Waters are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
Explain:
B. CWA SECTION 404 DETERMINATION OF JURISDICTION.
There >" ,waters of the U.S." within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area [Required]
1. Waters of the U.S.
a. Indicate presence of waters of U.S. in review area (check all that apply): 1
TNWs, including territorial seas
Wetlands adjacent to TNWs
Relatively permanent waters2 (RPWs) that flow directly or indirectly into TNWs
Non-RPWs that flow directly or indirectly into TNWs
Wetlands directly abutting RPWs that flow directly or indirectly into TNWs
Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs
Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs
Impoundments of jurisdictional waters
Isolated (interstate or intrastate) waters, including isolated wetlands
b. Identify (estimate) size of waters of the U.S. in the review area:
Non-wetland waters: 17461inear feet: width (ft) and/or 0.256 acres.
Wetlands: 0.209 acres.
c. Limits (boundaries) of jurisdiction based on: 1987 Deli ntatiqa._1?tan-4
Elevation of established OHWM (if known):
2. Non-regulated waters/wetlands (check if applicable):3
Potentially jurisdictional waters and/or wetlands were assessed within the review area and determined to be not jurisdictional.
Explain:
Boxes checked below shall be supported by completing the appropriate sections in Section III below.
Z For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally"
(e.g., typically 3 months).
3 Supporting documentation is presented in Section III.F.
SECTION III: CWA ANALYSIS
A. TNWs AND WETLANDS ADJACENT TO TNWs
The agencies will assert jurisdiction over TNWs and wetlands adjacent to TNWs. If the aquatic resource is a TNW, complete
Section III.A.1 and Section HI.D.1. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections I LA.1 and 2
and Section III.D.1.; otherwise, see Section III.B below.
1. TNW
Identify TNW:
Summarize rationale supporting determination:
2. Wetland adjjacemt o TN* N'
JLI III Ill Llrl C iWioIIZLti,i Lto1-,GIT1t1'_U;I6 i _DLII W,.LillU i> all)c?GCiC
B. CHARACTERISTICS OF TRIBUTARY (THAT IS NOT A TNW) AND ITS ADJACENT WETLANDS (IF ANY):
This section summarizes information regarding characteristics of the tributary and its adjacent wetlands, if any, and it helps
determine whether or not the standards for jurisdiction established under Rapanos have been met.
The agencies will assert jurisdiction over non-navigable tributaries of TNWs where the tributaries are "relatively permanent
waters" (RPWs), i.e. tributaries that typically flow year-round or have continuous flow at least seasonally (e.g., typically 3
months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round
(perennial) flow, skip to Section IH.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial flow,
skip to Section III.D.4.
A wetland that is adjacent to but that does not directly abut an RPW requires a significant nexus evaluation. Corps districts and
EPA regions will include in the record any available information that documents the existence of a significant nexus between a
relatively permanent tributary that is not perennial (and its adjacent wetlands if any) and a traditional navigable water, even
though a significant nexus finding is not required as a matter of law.
If the waterbodya is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the
waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must
consider the tributary in combination with all of its adjacent wetlands. This significant nexus evaluation that combines, for
analytical purposes, the tributary and all of its adjacent wetlands is used whether the review area identified in the JD request is
the tributary, or its adjacent wetlands, or both. If the JD covers a tributary with adjacent wetlands, complete Section III.B.1 for
the tributary, Section III.B.2 for any onsite wetlands, and Section III.B.3 for all wetlands adjacent to that tributary, both onsite
and offsite. The determination whether a significant nexus exists is determined in Section HLC below.
1. Characteristics of non-TNWs that flow directly or indirectly into TNW
(i) General Area Conditions:
Watershed size: 1,196,8Macr
Drainage area: 1.68 aLere
Average annual rainfall: 38.1 inches
Average annual snowfall: 15.6 inches
(ii) Physical Characteristics:
(a) Relationship with TNW:
? Tributary flows directly into TNW.
® Tributary flows through tributaries before entering TNW.
Project waters are t (or; lAs river miles from TNW.
Project waters are t (or less) river miles from RPW.
Project waters are 1 (orrless) aerial (straight) miles from TNW.
Project waters are 1 ogle aerial (straight) miles from RPW.
Project waters cross or serve as state boundaries. Explain: N/A.
Identify flow route to TNW5: Perennial Stream A and is met by Unimportant Intermittent Stream B, then flows through
project area to French Broad River.
Note that the Instructional Guidebook contains additional information regarding swales, ditches, washes, and erosional features generally and in the and
West.
5 Flow route can be described by identifying, e.g., tributary a, which flows through the review area, to flow into tributary b, which then flows into TNW.
Tributary stream order, if known: 2.
(b) General Tributary Characteristics (check all that apply):
Tributary is: ® Natural
? Artificial (man-made). Explain:
? Manipulated (man-altered). Explain:
Tributary properties with respect to top of bank (estimate):
Average width: 4-5 feet
Average depth: 3-4 feet
Average side slopes: 2. 1.
Primary tributary substrate composition (check all that apply):
? Silts ? Sands ? Concrete
iura%cl :?IUCk
? Bedrock
? Vegetation. Type; i, cover:
? Other. Explain:
Tributary condition/stability [e.g., highly eroding, sloughing banks]. Explain: moderate erosion and an incised channel.
Presence of run/riffle/pool complexes. Explain: moderate riffle/pool complexes.
Tributary geometry: Nle?nderin
Tributary gradient (approximate average slope): 2-4 %
(c) Flow:
Tributary provides for: Seasl t79
Estimate average number of flow events in review area/year: '0`(or treated
Describe flow regime:
Other information on duration and volume:
Surface flow is: Discrete. Characteristics:
Subsurface flow: Yes. Explain findings: Groundwater present in channel, no rain within last 48 hours.
? Dye (or other) test performed:
Tributary has (check all that apply):
® Bed and banks
® OHWM6 (check all indicators that apply):
? clear, natural line impressed on the bank ?
? changes in the character of soil ?
? shelving ?
® vegetation matted down, bent, or absent ?
® leaf litter disturbed or washed away
® sediment deposition ?
? water staining ?
? other (list):
F-1 Discontinuous OHWM.7 Explain:
If factors other than the OHWM were used to determ
High Tide Line indicated by:
? oil or scum line along shore objects
? fine shell or debris deposits (foreshore)
? physical markings/characteristics
? tidal gauges
? other (list):
the presence of litter and debris
destruction of terrestrial vegetation
the presence of wrack line
sediment sorting
scour
multiple observed or predicted flow events
abrupt change in plant community
ne lateral extent of CWA jurisdiction (check all that apply):
Mean High Water Mark indicated by:
? survey to available datum;
? physical markings;
? vegetation lines/changes in vegetation types.
(iii) Chemical Characteristics:
Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.).
Explain: clear water.
Identify specific pollutants, if known:
6A natural or man-made discontinuity in the OHWM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows underground, or where
the OHWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to the waterbody's flow
regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above and below the break.
'Ibid.
(iv) Biological Characteristics. Channel supports (check all that apply):
® Riparian corridor. Characteristics (type, average width):
? Wetland fringe. Characteristics:
® Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
® Aquatic/wildlife diversity. Explain findings: weak presence of crayfish and amphibians, and a weak presence of
benthic macroinvertebrates.
2. Characteristics of wetlands adjacent to non-TNW that flow directly or indirectly into TNW
(i) Physical Characteristics:
I) General \Vetland Characteristics:
properties:
Wedancl size: acres
Wetland type. Explain:
Wetland quality. Explain:
Project wetlands cross or serve as state boundaries. Explain:
(b) General Flow Relationship with Non-TNW:
Flow is: Pick List. Explain:
Surface flow is: Pick: Li
Characteristics:
Subsurface flow: Pi(i Us,. Explain findings:
? Dye (or other) test performed:
(c) Wetland Adiacency Determination with Non-TNW:
? Directly abutting
? Not directly abutting
? Discrete wetland hydrologic connection. Explain:
? Ecological connection. Explain:
? Separated by berm/barrier. Explain:
(d) Proximity (Relationship) to TNW
Project wetlands are Pick U river miles from TNW.
Project waters are Pick LM aerial (straight) miles from TNW.
Flow is from: Pick Lig.
Estimate approximate location of wetland as within the Pk,T:is? floodplain.
(ii) Chemical Characteristics:
Characterize wetland system (e.g., water color is clear, brown, oil film on surface; water quality; general watershed
characteristics; etc.). Explain:
Identify specific pollutants, if known:
(iii) Biological Characteristics. Wetland supports (check all that apply):
? Riparian buffer. Characteristics (type, average width):
? Vegetation type/percent cover. Explain:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
3. Characteristics of all wetlands adjacent to the tributary (if any)
All wetland(s) being considered in the cumulative analysis: 30` mgre
Approximately ( ) acres in total are being considered in the cumulative analysis.
For each wetland, specify the following:
Directly abuts? (Y/N) Size (in acres) Directly abuts? (Y/N) Size (in acres)
Summarize overall biological, chemical and physical functions being performed:
C. SIGNIFICANT NEXUS DETERMINATION
3i"nif'can[ :,e pus aiiaiysis R'iii asses, ale ;low marac2enstics and functions L)i the tributary itself and the functions performed
by anv wetlands adjacent to the tributary to determine if they significantly affect the chemical, physical, and biological integrity
of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent
wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological integrity of a TNW.
Considerations when evaluating significant nexus include, but are not limited to the volume, duration, and frequency of the flow
of water in the tributary and its proximity to a TNW, and the functions performed by the tributary and all its adjacent
wetlands. It is not appropriate to determine significant nexus based solely on any specific threshold of distance (e.g. between a
tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or
outside of a floodplain is not solely determinative of significant nexus.
Draw connections between the features documented and the effects on the TNW, as identified in the Rapanos Guidance and
discussed in the Instructional Guidebook. Factors to consider include, for example:
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or flood waters to
TNWs, or to reduce the amount of pollutants or flood waters reaching a TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support functions for fish and
other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that
support downstream foodwebs?
• Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or
biological integrity of the TNW?
Note: the above list of considerations is not inclusive and other functions observed or known to occur should be documented
below:
1. Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain
findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section III.D:
2. Significant nexus findings for non-RPW and its adjacent wetlands, where the non-RPW flows directly or indirectly into
TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its
adjacent wetlands, then go to Section III.D:
3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of
presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to
Section 11I.D:
D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERS/WETLANDS ARE (CHECK ALL
THAT APPLY):
1. TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area:
Q TNWs: linear feet width (ft), Or, acres.
,ZJ Wetlands adjacent to TNWs: acres.
2. RPWs that flow directly or indirectly into TNWs.
Tributaries of TNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that
tributary is perennial: Stream A flows through the middle portion of the property and is approximately 1,540 linear feet in
length (Figure 1, enclosed). This channel exhibited average ordinary high water widths of 4-5 feet, perennial flow, moderate
sinuosity, and substrate consisting of fine sand to small cobbles. Biological sampling of Stream A resulted in a weak presence
of crayfish and amphibians, and a weak presence of benthic macroinvertebrates. USACE Stream Quality Assessment scores
for Perennial Stream A ranged from 49 to 53 out of a possible 100 points and ranged from 33.5 to 36.5 out of 71 possible
points on the NCDWQ Stream Classification Form, indicating perennial status (SCP1 through SCP3, enclosed). Photographs
of Perennial Stream A are enclosed as Photographs A and B .
Tributaries of TNW where tributaries have continuous flow "seasonally" (e.g., typically three months each year) are
jurisdictional. Data supporting this conclusion is provided at Section III.B. Provide rationale indicating that tributary flows
seasonally:
Provide estimates for jurisdictional waters in the review area (check all that apply):
EJ Tributary waters: 190 linear feet4-5width (ft).
Q Other non-wetland waters: acres.
Identify type(s) of waters:
3. Non-RPWs8 that flow directly or indirectly into TNWs.
? Waterbody that is not a TNW or an RPW, but flows directly or indirectly into a TNW, and it has a significant nexus with a
T\! 11 un,di?d:;nt(. DatL: -.uorortin._ thc at 11!.C.
Provide estimates for jurisdictional waters within the review area (check all that apply):
? Tributary waters: linear feet width (ft).
Q Other non-wetland waters: acres.
Identify type(s) of waters:
4. Wetlands directly abutting an RPW that flow directly or indirectly into TNWs.
JQ Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands.
[]; Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale
indicating that tributary is perennial in Section III.D.2, above. Provide rationale indicating that wetland is
directly abutting an RPW:
?Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary is
seasonal in Section III.B and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly
abutting an RPW:
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
5. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly into TNWs.
? Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent
and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisidictional. Data supporting this
conclusion is provided at Section III.C.
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
6. Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs.
Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and
with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisdictional. Data supporting this
conclusion is provided at Section III. C.
Provide estimates for jurisdictional wetlands in the review area: acres.
7. Impoundments of jurisdictional waters.9
As a general rule, the impoundment of a jurisdictional tributary remains jurisdictional.
Demonstrate that impoundment was created from "waters of the U.S.," or
Q Demonstrate that water meets the criteria for one of the categories presented above (1-6), or
JD Demonstrate that water is isolated with a nexus to commerce (see E below).
E. ISOLATED [INTERSTATE OR INTRA-STATE] WATERS, INCLUDING ISOLATED WETLANDS, THE USE,
DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY
SUCH WATERS (CHECK ALL THAT APPLY):"
which are or could be used by interstate or foreign travelers for recreational or other purposes.
BSee Footnote It 3.
9 To complete the analysis refer to the key in Section III.D.6 of the Instructional Guidebook.
10 Prior to asserting or declining CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA HQ for
review consistent with the process described in the Corps/EPA Memorandum Regarding CWA Act Jurisdiction Following Rapanos
? from which fish or shellfish are or could be taken and sold in interstate or foreign commerce.
? which are or could be used for industrial purposes by industries in interstate commerce.
Interstate isolated waters. Explain:
? Other factors. Explain:
Identify water body and summarize rationale supporting determination:
Provide estimates for jurisdictional waters in the review area (check all that apply):
? Tributary waters: linear feet width (ft).
Other non-wetland waters: acres.
Identify type(s) of waters:
Werlands: e
F. NON-JURISDICTIONAL WATERS, INCLUDING WETLANDS (CHECK ALL THAT APPLY):
If potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1987 Corps of Engineers
Wetland Delineation Manual and/or appropriate Regional Supplements.
Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce.
? Prior to the Jan 2001 Supreme Court decision in "SWANCC," the review area would have been regulated based solely on the
"Migratory Bird Rule" (MBR).
? Waters do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction. Explain:
? Other: (explain, if not covered above):
Provide acreage estimates for non jurisdictional waters in the review area, where the sole potential basis of jurisdiction is the MBR
factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture), using best professional
judgment (check all that apply):
? Non-wetland waters (i.e., rivers, streams): linear feet width (ft).
?, Lakes/ponds: acres.
Other non-wetland waters: acres. List type of aquatic resource:
?' Wetlands: acres.
Provide acreage estimates for non jurisdictional waters in the review area that do not meet the "Significant Nexus" standard, where such
a finding is required for jurisdiction (check all that apply):
? Non-wetland waters (i.e., rivers, streams): linear feet, width (ft).
?' Lakes/ponds: acres.
? Other non-wetland waters: acres. List type of aquatic resource:
? Wetlands: acres.
SECTION IV: DATA SOURCES.
A. SUPPORTING DATA. Data reviewed for JD (check all that apply - checked items shall be included in case file and, where checked
and requested, appropriately reference sources below):
Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant:
Data sheets prepared/submitted by or on behalf of the applicant/consultant.
® Office concurs with data sheets/delineation report.
? Office does not concur with data sheets/delineation report.
Data sheets prepared by the Corps:
? Corps navigable waters' study:
? U.S. Geological Survey Hydrologic Atlas:
? USGS NHD data.
? USGS 8 and 12 digit HUC maps.
? U.S. Geological Survey map(s). Cite scale & quad name:Skyland, North Carolina, 1991.
USDA Natural Resources Conservation Service Soil Survey. Citation:
? National wetlands inventory map(s). Cite name:
State/Local wetland inventory map(s):
FEMA/FIRM maps:
100-year Floodplain Elevation is: (National Geodectic Vertical Datum of 1929)
Photographs: ? Aerial (Name &'Date):
or ® Other (Name & Date): See attached report.
Previous determination(s). File no. and date of response letter:
? Applicable/supporting case law:
? Applicable/supporting scientific literature:
[? Other information (please specify):
APPROVED JURISDICTIONAL DETERMINATION FORM
U.S. Army Corps of Engineers
This form should be completed by following the instructions provided in Section IV of the JD Form Instructional Guidebook.
SECTION I: BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD): July 16, 2007
B. DISTRICT OFFICE, FILE NAME, AND NUMBER:Asheville Regional Office
C. PROJECT LOCATION AND BACKGROUND INFORMATION: The Asheville Regional Airport Expansion site is located
adjacent to Highway 26, on existing Airport Authority property in Fletcher, North Carolina, Unimportant Intermittent Stream B
State:NC County/parish/borough: Buncombe City: Fletcher
L "lti„ GIQIiaLaJ JT >? «. .Il.: a ?l??t i,:: Ue:.l.l, Ali .Jr.,I ..Lj: _a6.
name of nearest waterbody: French Broad River
Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource flows: French Broad River
Name of watershed or Hydrologic Unit Code (HUC): 06010105
Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request.
Check if other sites (e.g., offsite mitigation sites, disposal sites, etc...) are associated with this action and are recorded on a
different JD form.
D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):
d Office (Desk) Determination. Date: June 19, 2007
Field Determination. Date(s): June 13, 2007
SECTION II: SUMMARY OF FINDINGS
A. RHA SECTION 10 DETERMINATION OF JURISDICTION.
There _-XXejN "navigable waters of the U.S." within Rivers and Harbors Act (RHA) jurisdiction (as defined by 33 CFR part 329) in the
review area. [Required]
Waters subject to the ebb and flow of the tide.
Q Waters are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
Explain:
B. CWA SECTION 404 DETERMINATION OF JURISDICTION.
There 16 ,waters of the U.S." within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area. [Required]
1. Waters of the U.S.
a. Indicate presence of waters of U.S. in review area (check all that apply): t
TNWs, including territorial seas
Q Wetlands adjacent to TNWs
Relatively permanent watersz (RPWs) that flow directly or indirectly into TNWs
l? Non-RPWs that flow directly or indirectly into TNWs
Z Wetlands directly abutting RPWs that flow directly or indirectly into TNWs
Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs
? Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs
Q Impoundments of jurisdictional waters
Isolated (interstate or intrastate) waters, including isolated wetlands
b. Identify (estimate) size of waters of the U.S. in the review area:
Non-wetland waters: 17461inear feet: width (ft) and/or 0.256 acres.
Wetlands: 0.209 acres.
c. Limits (boundaries) of jurisdiction based on: 1997 D)Aiueat n 1ti1
Elevation of established OHWM (if known):
2. Non-regulated waters/wetlands (check if applicable):3
Potentially jurisdictional waters and/or wetlands were assessed within the review area and determined to be not jurisdictional.
Explain:
1 Boxes checked below shall be supported by completing the appropriate sections in Section III below.
z For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally"
(e.g., typically 3 months).
3 Supporting documentation is presented in Section HI.F.
V
SECTION III: CWA ANALYSIS
A. TNWs AND WETLANDS ADJACENT TO TNWs
The agencies will assert jurisdiction over TNWs and wetlands adjacent to TNWs. If the aquatic resource is a TNW, complete
Section HI.A.1 and Section III.D.1. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections III.A.1 and 2
and Section III.D.1.; otherwise, see Section III.B below.
1. TNW
Identify TNW:
Summarize rationale supporting determination:
2. 'wetland adjacent to T NW
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B. CHARACTERISTICS OF TRIBUTARY (THAT IS NOT A TNW) AND ITS ADJACENT WETLANDS (IF ANY):
This section summarizes information regarding characteristics of the tributary and its adjacent wetlands, if any, and it helps
determine whether or not the standards for jurisdiction established under Rapanos have been met.
The agencies will assert jurisdiction over non-navigable tributaries of TNWs where the tributaries are "relatively permanent
waters" (RPWs), i.e. tributaries that typically flow year-round or have continuous flow at least seasonally (e.g., typically 3
months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round
(perennial) flow, skip to Section IH.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial flow,
skip to Section III.D.4.
A wetland that is adjacent to but that does not directly abut an RPW requires a significant nexus evaluation. Corps districts and
EPA regions will include in the record any available information that documents the existence of a significant nexus between a
relatively permanent tributary that is not perennial (and its adjacent wetlands if any) and a traditional navigable water, even
though a significant nexus finding is not required as a matter of law.
If the waterbody° is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the
waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must
consider the tributary in combination with all of its adjacent wetlands. This significant nexus evaluation that combines, for
analytical purposes, the tributary and all of its adjacent wetlands is used whether the review area identified in the JD request is
the tributary, or its adjacent wetlands, or both. If the JD covers a tributary with adjacent wetlands, complete Section IH.B.1 for
the tributary, Section III.B.2 for any onsite wetlands, and Section III.133 for all wetlands adjacent to that tributary, both onsite
and offsite. The determination whether a significant nexus exists is determined in Section IH.C below.
1. Characteristics of non-TNWs that flow directly or indirectly into TNW
(i) General Area Conditions:
Watershed size: 1,196.800aer
Drainage area: 5 ages
Average annual rainfall: 38.1 inches
Average annual snowfall: 15.6 inches
(ii) Physical Characteristics:
(a) Relationship with TNW:
? Tributary flows directly into TNW.
® Tributary flows through tributaries before entering TNW.
Project waters are 1 *(!)r [ess river miles from TNW.
Project waters are f (or I-` river miles from RPW.
Project waters are I (or Is, aerial (straight) miles from TNW.
Project waters are LLor l",5 aerial (straight) miles from RPW.
Project waters cross or serve as state boundaries. Explain: N/A.
Identify flow route to TNW5: Unimportant Intermittent Stream B flows into Stream A then into French Broad River .
Tributary stream order, if known: 1.
a Note that the Instructional Guidebook contains additional information regarding swales, ditches, washes, and erosional features generally and in the and
West.
5 Flow route can be described by identifying, e.g., tributary a, which flows through the review area, to flow into tributary b, which then flows into TNW.
(b) General Tributary Characteristics (check all that apply):
Tributary is: ® Natural
? Artificial (man-made). Explain:
? Manipulated (man-altered). Explain:
Tributary properties with respect to top of bank (estimate):
Average width: 4-5 feet
Average depth: 3-4 feet
Average side slopes: 2:1.
Primary tributary substrate composition (check all that apply):
® Silts ? Sands ? Concrete
? Cobbles Gr,,i e! ? Muck
? Bedrock
? Other. E:cplain:
Tributary condition/stability [e.g., highly eroding, sloughing banks]. Explain: moderate erosion and an incised channel.
Presence of run/riffle/pool complexes. Explain: weak riffle/pool complexes.
Tributary geometry: Ne-4p4eriR_g
Tributary gradient (approximate average slope): 2-4 %
(c) Flow:
Tributary provides for: Iatermint l pt n sea onal floe
Estimate average number of flow events in review area/year: 20 (Vr greatgj
Describe flow regime:
Other information on duration and volume:
Surface flow is: Discred. Characteristics:
Subsurface flow: Yes. Explain findings: Weak presence of groundwater flow.
? Dye (or other) test performed:
Tributary has (check all that apply):
® Bed and banks
? OHWM6 (check all indicators that apply):
? clear, natural line impressed on the bank
? changes in the character of soil ?
? shelving ?
? vegetation matted down, bent, or absent ?
? leaf litter disturbed or washed away ?
? sediment deposition ?
? water staining ?
? other (list):
F-1 Discontinuous OHWM.' Explain:
If factors other than the OHWM were used to determ
?', High Tide Line indicated by:
? oil or scum line along shore objects
? fine shell or debris deposits (foreshore)
? physical markings/characteristics
? tidal gauges
? other (list):
the presence of litter and debris
destruction of terrestrial vegetation
the presence of wrack line
sediment sorting
scour
multiple observed or predicted flow events
abrupt change in plant community
ne lateral extent of CWA jurisdiction (check all that apply):
Mean High Water Mark indicated by:
? survey to available datum;
? physical markings;
? vegetation lines/changes in vegetation types.
(iii) Chemical Characteristics:
Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.).
Explain: no water in channel.
Identify specific pollutants; if known:
6A natural or man-made discontinuity in the OHWM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows underground, or where
the OHWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to the waterbody's flow
regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above and below the break.
'Ibid.
t
(iv) Biological Characteristics. Channel supports (check all that apply):
® Riparian corridor. Characteristics (type, average width):
? Wetland fringe. Characteristics:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
2. Characteristics of wetlands adjacent to non-TNW that flow directly or indirectly into TNW
(i) Physical Characteristics:
(a) Genera] Wetland Characteristics:
n"n i?ei'[P3S:
-.G „CI L; iIU SILiJ: 1C:..o
'oY etlanU cype. _Expiain:
Wetland quality. Explain:
Project wetlands cross or serve as state boundaries. Explain:
(b) General Flow Relationship with Non-TNW:
Flow is: Pick List. Explain:
Surface flow is: Pick Lisp
Characteristics:
Subsurface flow: Pick List. Explain findings:
? Dye (or other) test performed:
(c) Wetland Adjacency Determination with Non-TNW:
? Directly abutting
? Not directly abutting
? Discrete wetland hydrologic connection. Explain:
? Ecological connection. Explain:
? Separated by berm/barrier. Explain:
(d) Proximity (Relationship) to TNW
Project wetlands are Pick List river miles from TNW.
Project waters arc Pick Li aerial (straight) miles from TNW.
Flow is from: Pick List.
Estimate approximate location of wetland as within the PA 1, floodplain.
(ii) Chemical Characteristics:
Characterize wetland system (e.g., water color is clear, brown, oil fihn on surface; water quality; general watershed
characteristics; etc.). Explain:
Identify specific pollutants, if known:
(iii) Biological Characteristics. Wetland supports (check all that apply):
? Riparian buffer. Characteristics (type, average width):
? Vegetation type/percent cover. Explain:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
3. Characteristics of all wetlands adjacent to the tributary (if any)
All wetland(s) being considered in the cumulative analysis: Py _k,i
Approximately ( ) acres in total are being considered in the cumulative analysis.
For each wetland, specify the following:
Directly abuts? (Y/N) Size (in acres) Directly abuts? (Y/N) Size (in acres)
Summarize overall biological, chemical and physical functions being performed:
C. SIGNIFICANT NEXUS DETERMINATION
Jigai#'icanr nexus aaa , sis ,viil assess the ;low yharacrerisdcs and functions W :he lribatar-. itself and Elie fuacdoas oeriormed
by any wetlands adjacent to the tributary to determine if they significantly affect the chemical, physical, and biological integrity
of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent
wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological integrity of a TNW.
Considerations when evaluating significant nexus include, but are not limited to the volume, duration, and frequency of the flow
of water in the tributary and its proximity to a TNW, and the functions performed by the tributary and all its adjacent
wetlands. It is not appropriate to determine significant nexus based solely on any specific threshold of distance (e.g. between a
tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or
outside of a floodplain is not solely determinative of significant nexus.
Draw connections between the features documented and the effects on the TNW, as identified in the Rapanos Guidance and
discussed in the Instructional Guidebook. Factors to consider include, for example:
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or flood waters to
TNWs, or to reduce the amount of pollutants or flood waters reaching a TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support functions for fish and
other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that
support downstream foodwebs?
• Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or
biological integrity of the TNW?
Note: the above list of considerations is not inclusive and other functions observed or known to occur should be documented
below:
1. Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain
findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section III.D:
2. Significant nexus findings for non-RPW and its adjacent wetlands, where the non-RPW flows directly or indirectly into
TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its
adjacent wetlands, then go to Section III.D:
3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of
presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to
Section III.D:
D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERS/WETLANDS ARE (CHECK ALL
THAT APPLY):
TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area:
TNWs: linear feet width (ft), Or, acres.
Wetlands adjacent to TNWs: acres.
2. RPWs that flow directly or indirectly into TNWs.
?; Tributaries of TNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that
tributary is perennial:
Tributaries of TNW where tributaries have continuous flow "seasonally" (e.g., typically three months each year) are jurisdictional. Data
supporting this conclusion is provided at Section III.B. Provide rationale indicating that tributary flows seasonally: Stream B flows north and
is approximately 92 linear feet in length (Figure 1, enclosed). This channel exhibited average ordinary high water widths of 3-4 feet, weak
ground water flow, and substrate consisting of silt to large gravel. Unimportant Intermittent Stream B scored 27 out of a possible 100 points
on the USACE Stream Quality Assessment Form and 23.5 out of 71 possible points on the NCDWQ Stream Classification Form, indicating
intermittent status (SCP4, enclosed). A photograph of Unimportant Intermittent Stream B is enclosed as Photograph G.
Provide estimates for jurisdictional waters in the review area (check all that apply):
Tributary waters: 92 linear feet3-4width (ft).
? Other non-wetland waters: acres.
Identify type(s) of waters:
3. Non-RPWss that flow directly or indirectly into TNWs.
Waterbody that is not a TNW or an RPW, but flows directly or indirectly into a TNW, and it has a significant nexus with a
TNW is jurisdictional. Data supporting this conclusion is provided at Section III.C.
ide Ls?L11at°s ?I; ?I ?t_ nal % ar,.._ a!! thy:, irrl,:):
TrlbUtar,, %,ir rs. V;,ittl lrt i.
? ether non-wetlana waters: acres.
Identify type(s) of waters:
4. Wetlands directly abutting an RPW that flow directly or indirectly into TNWs.
Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands.
? Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale
indicating that tributary is perennial in Section IILD.2, above. Provide rationale indicating that wetland is
directly abutting an RPW:
? Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary is
seasonal in Section III.B and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly
abutting an RPW:
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
5. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly into TNWs.
?j Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent
and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisidictional. Data supporting this
conclusion is provided at Section III.C.
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
6. Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs.
Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and
with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisdictional. Data supporting this
conclusion is provided at Section III.C.
Provide estimates for jurisdictional wetlands in the review area: acres.
7. Impoundments of jurisdictional waters.9
As a general rule, the impoundment of a jurisdictional tributary remains jurisdictional.
Q Demonstrate that impoundment was created from ".`waters of the U.S.," or
Demonstrate that water meets the criteria for one of the categories presented above (1-6), or
Demonstrate that water is isolated with a nexus to commerce (see E below).
E. ISOLATED [INTERSTATE OR INTRA-STATE] WATERS, INCLUDING ISOLATED WETLANDS, THE USE,
DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY
SUCH WATERS (CHECK ALL THAT APPLY):"
which are or could be used by interstate or foreign travelers for recreational or other purposes.
from which fish or shellfish are or could be taken and sold in interstate or foreign commerce.
which are or could be used for industrial purposes by industries in interstate commerce.
aSee Footnote # 3.
9 To complete the analysis refer to the key in Section III.D.6 of the Instructional Guidebook
10 Prior to asserting or declining CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA HQ for
review consistent with the process described in the Corps/EPA Memorandum Regarding CWA Act Jurisdiction Following Rapanos.
Interstate isolated waters. Explain:
Other factors. Explain:
Identify water body and summarize rationale supporting determination:
Provide estimates for jurisdictional waters in the review area (check all that apply):
? Tributary waters: linear feet width (ft).
?' Other non-wetland waters: acres.
Identify type(s) of waters:
( Wetlands: acres.
J N .1 i?15 Dt l .J -D s,CHECX .' i T IiAT APPL'r;;
tf potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1 )8 Corps of Engineers
Wetland Delineation Manual and/or appropriate Regional Supplements.
Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce.
? Prior to the Jan 2001 Supreme Court decision in "SWANCC," the review area would have been regulated based solely on the
"Migratory Bird Rule" (MBR).
Waters do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction. Explain:
? Other: (explain, if not covered above):
Provide acreage estimates for non jurisdictional waters in the review area where the sole potential basis of jurisdiction is the MBR
factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture), using best professional
judgment (check all that apply):
? Non-wetland waters (i.e., rivers, streams): linear feet width (ft).
Lakes/ponds: acres.
Other non-wetland waters: acres. List type of aquatic resource:
Wetlands: acres.
Provide acreage estimates for non jurisdictional waters in the review area that do not meet the "Significant Nexus" standard, where such
a finding is required for jurisdiction (check all that apply):
Q Non-wetland waters (i.e., rivers, streams): linear feet, width (ft).
? Lakes/ponds: acres.
? Other non-wetland waters: acres. List type of aquatic resource:
Wetlands: acres.
SECTION IV: DATA SOURCES.
A. SUPPORTING DATA. Data reviewed for JD (check all that apply -checked items shall be included in case file and, where checked
and requested, appropriately reference sources below):
0 Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant:
Q Data sheets prepared/submitted by or on behalf of the applicant/consultant.
® Office concurs with data sheets/delineation report.
? Office does not concur with data sheets/delineation report.
? Data sheets prepared by the Corps:
? Corps navigable waters' study:
U.S. Geological Survey Hydrologic Atlas:
? USGS NHD data.
? USGS 8 and 12 digit HUC maps.
U.S. Geological Survey map(s). Cite scale & quad name:Skyland, North Carolina, 1991.
USDA Natural Resources Conservation Service Soil Survey. Citation:
? National wetlands inventory map(s). Cite name:
State/Local wetland inventory map(s):
? FEMA/FIRM maps:
? 100-year Floodplain Elevation is: (National Geodectic Vertical Datum of 1929)
Photographs: ? Aerial (Name & Date):
or ® Other (Name & Date): See attached report.
? Previous determination(s). File no. and date of response letter:
? Applicable/supporting case law:
Applicable/supporting scientific literature:
Other information (please specify):
APPROVED JURISDICTIONAL DETERMINATION FORM
U.S. Army Corps of Engineers
This form should be completed by following the instructions provided in Section IV of the JD Form Instructional Guidebook.
SECTION I: BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD): July 16, 2007
B. DISTRICT OFFICE, FILE NAME, AND NUMBER:Asheville Regional Office
C. PROJECT LOCATION AND BACKGROUND INFORMATION: The Asheville Regional Airport Expansion site is located
adjacent to Highway 26, on existing Airport Authority property in Fletcher, North Carolina, Perennial Stream C and Wetland CC
State:NC County/parish/borough: Buncombe City: Fletcher
ror?iaL) _ it. ---
,il`. "V.
?ni:?er?al erneera;tor:
Name of nearest waterbody: French Broad River
Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource flows: French Broad River
Name of watershed or Hydrologic Unit Code (HUC): 06010105
Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request.
Check if other sites (e.g., offsite mitigation sites, disposal sites, etc...) are associated with this action and are recorded on a
different JD form.
D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):
Office (Desk) Determination. Date: June 19, 2007
Field Determination. Date(s): June 13, 2007
SECTION H: SUMMARY OF FINDINGS
A. RHA SECTION 10 DETERMINATION OF JURISDICTION.
There Are n "navigable waters of the U.S." within Rivets and Harbors Act (RHA) jurisdiction (as defined by 33 CFR part 329) in the
review irca. [Required]
Waters subject to the ebb and flow of the tide.
Waters are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
Explain:
B. CWA SECTION 404 DETERMINATION OF JURISDICTION.
There Are "waters of the U.S" within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area. [Required]
1. Waters of the U.S.
a. Indicate presence of waters of U.S. in review area (check all that apply): t
of TNWs, including territorial seas
?) Wetlands adjacent to TNWs
Relatively permanent waters2 (RPWs) that flow directly or indirectly into TNWs
Non-RPWs that flow directly or indirectly into TNWs
Wetlands directly abutting RPWs that flow directly or indirectly into TNWs
?', Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs
Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs
Q Impoundments of jurisdictional waters
Isolated (interstate or intrastate) waters, including isolated wetlands
b. Identify (estimate) size of waters of the U.S. in the review area:
Non-wetland waters: 17461inear feet: width (ft) and/or 0.256 acres.
Wetlands: 0.209 acres.
c. Limits (boundaries) of jurisdiction based on: 1987 Ijelireatio?llaaual',
Elevation of established OHWM (if known):
2. Non-regulated waters/wetlands (check if applicable):3
Potentially jurisdictional waters and/or wetlands were assessed within the review area and determined to be not jurisdictional.
Explain:
1 Boxes checked below shall be supported by completing the appropriate sections in Section III below.
Z For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally"
(e.g., typically 3 months).
3 Supporting documentation is presented in Section III.F.
SECTION III: CWA ANALYSIS
A. TNWs AND WETLANDS ADJACENT TO TNWs
The agencies will assert jurisdiction over TNWs and wetlands adjacent to TNWs. If the aquatic resource is a TNW, complete
Section HI.A.1 and Section III.D.1. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections III.A.1 and 2
and Section III.DA.; otherwise, see Section III.B below.
1. TNW
Identify TNW:
Summarize rationale supporting determination:
2, -I.Netland adjacent to T` IN
?Ulll lllflLl?3 i?1?lOC1 EltC: SLt IitJUitLL JU11CiU?l Oll ?i?i? A? ?tliil 15 -.Ct?i3l''?tlC
B. CHARACTERISTICS OF TRIBUTARY (THAT IS NOT A TNW) AND ITS ADJACENT WETLANDS (IF ANY):
This section summarizes information regarding characteristics of the tributary and its adjacent wetlands, if any, and it helps
determine whether or not the standards for jurisdiction established under Rapanos have been met.
The agencies will assert jurisdiction over non-navigable tributaries of TNWs where the tributaries are "relatively permanent
waters" (RPWs), i.e. tributaries that typically flow year-round or have continuous flow at least seasonally (e.g., typically 3
months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round
(perennial) flow, skip to Section IH.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial flow,
skip to Section HI.D.4.
A wetland that is adjacent to but that does not directly abut an RPW requires a significant nexus evaluation. Corps districts and
EPA regions will include in the record any available information that documents the existence of a significant nexus between a
relatively permanent tributary that is not perennial (and its adjacent wetlands if any) and a traditional navigable water, even
though a significant nexus finding is not required as a matter of law.
If the waterbody4 is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the
waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must
consider the tributary in combination with all of its adjacent wetlands. This significant nexus evaluation that combines, for
analytical purposes, the tributary and all of its adjacent wetlands is used whether the review area identified in the JD request is
the tributary, or its adjacent wetlands, or both. If the JD covers a tributary with adjacent wetlands, complete Section III.B.1 for
the tributary, Section HI.B.2 for any onsite wetlands, and Section IH.B3 for all wetlands adjacent to that tributary, both onsite
and offsite. The determination whether a significant nexus exists is determined in Section IH.C below.
1. Characteristics of non-TNWs that flow directly or indirectly into TNW
(i) General Area Conditions:
Watershed size: 1,196,8Macrq
Drainage area: 1.68 acres
Average annual rainfall: 38.1 inches
Average annual snowfall: 15.6 inches
(ii) Physical Characteristics:
(a) Relationship with TNW:
? Tributary flows directly into TNW.
® Tributary flows through tributaries before entering TNW.
Project waters are 1(or less) river miles from TNW.
Project waters are lJor less) river miles from RPW.
Project waters are I (or less) aerial (straight) miles from TNW.
Project waters are I (fl le aerial (straight) miles from RPW.
Project waters cross or serve as state boundaries. Explain: N/A.
Identify flow route to TNW5: Perennial Stream C meets Perennial Stream A and then flows into French Broad River.
Tributary stream order, if known: 1.
4 Note that the Instructional Guidebook contains additional information regarding swales, ditches, washes, and erosional features generally and in the and
West.
5 Flow route can be described by identifying, e.g., tributary a, which flows through the review area, to flow into tributary b, which then flows into TNW.
(b) General Tributary Characteristics (check all that apply):
Tributary is: ® Natural
? Artificial (man-made). Explain:
? Manipulated (man-altered). Explain:
Tributary properties with respect to top of bank (estimate):
Average width: 4-5 feet
Average depth: 3-4 feet
Average side slopes: 2:1.
Primary tributary substrate composition (check all that apply):
® Silts ? Sands ? Concrete
? Cobbles ? Cra -c1 I-1 muck,
? Other. Expiain:
Tributary condition/stability [e.g., highly eroding, sloughing banks]. Explain: moderate erosion and an incised channel.
Presence of run/riffle/pool complexes. Explain: moderate riffle/pool complexes.
Tributary geometry: Relatively strai
Tributary gradient (approximate average slope): 0-2 %
(c) Flow:
Tributary provides for: Seasoner flor+
Estimate average number of flow events in review area/yean, 1-?A
Describe flow regime:
Other information on duration and volume:
Surface flow is: Discrete., Characteristics:
Subsurface flow: Explain findings: Groundwater present in channel, no rain within last 48 hours.
? Dye (or other) test performed:
Tributary has (check all that apply):
® Bed and banks
® OHWM6 (check all indicators that apply):
? clear, natural line impressed on the bank ?
? changes in the character of soil ?
? shelving ?
® vegetation matted down, bent, or absent ?
® leaf litter disturbed or washed away
® sediment deposition ?
? water staining ?
? other (list):
? Discontinuous OHWM.' Explain:
If factors other than the OHWM were used to determ
? High Tide Line indicated by: Ei
? oil or scum line along shore objects
? fine shell or debris deposits (foreshore)
? physical markings/characteristics
? tidal gauges
? other (list):
the presence of litter and debris
destruction of terrestrial vegetation
the presence of wrack line
sediment sorting
scour
multiple observed or predicted flow events
abrupt change in plant community
me lateral extent of CWA jurisdiction (check all that apply):
Mean High Water Mark indicated by:
? survey to available datum;
? physical markings;
? vegetation lines/changes in vegetation types.
(iii) Chemical Characteristics:
Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.).
Explain: clear water.
Identify specific pollutants, if known:
6A natural or man-made discontinuity in the OHWM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows underground, or where
the OHWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to the waterbody's flow
regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above and below the break.
'Ibid.
(iv) Biological Characteristics. Channel supports (check all that apply):
? Riparian corridor. Characteristics (type, average width):
® Wetland fringe. Characteristics:
® Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
® Aquatic/wildlife diversity. Explain findings: weak presence of crayfish and amphibians, and a weak presence of
benthic macroinvertebrates.
2. Characteristics of wetlands adjacent to non-TNW that flow directly or indirectly into TNW
(i) Physical Characteristics:
?:il General Wedand Characteristics:
?'i ODerT, i c;?:
W ftland size:0. t ,"acres
Wetland type. Explain: forested.
Wetland quality. Explain:
Project wetlands cross or serve as state boundaries. Explain:
(b) General Flow Relationship with Non-TNW:
Flow is: Perennial flow. Explain: Groundwater present in channel, no rain within last 48 hours.
Surface flow is: Overfarid sheettlow
Characteristics:
Subsurface flow: Yes. Explain findings: Groundwater present in channel, no rain within last 48 hours, saturation within
the upper 12 inches of the soil protile.
? Dye (or other) test performed:
(c) Wetland Adjacency Determination with Non-TNW:
® Directly abutting
? Not directly abutting
? Discrete wetland hydrologic connection. Explain:
? Ecological connection. Explain:
? Separated by berm/barrier. Explain:
(d) Proximity (Relationship) to TNW
Project wetlands are t` (or less) river miles from TNW.
Project waters arc t (or less) icnal (straight) miles from TNW.
Flow is from. NVetland _i *)1 vters.
Estimate approximate location of wetland as within the 110 - St-yam floodplain.
(ii) Chemical Characteristics:
Characterize wetland system (e.g., water color is clear, brown, oil film on surface; water quality; general watershed
characteristics; etc.). Explain: clear water.
Identify specific pollutants, if known:
(iii) Biological Characteristics. Wetland supports (check all that apply):
? Riparian buffer. Characteristics (type, average width):
® Vegetation type/percent cover. Explain:All of the dominant plant species are FAC or wetter.
® Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
® Aquatic/wildlife diversity. Explain findings:weak presence of amphibians and macrobenthos.
3. Characteristics of all wetlands adjacent to the tributary (if an )
All wetland(s) being considered in the cumulative analysis:
Approximately ( 0.172 ) acres in total are being considered in the cumulative analysis.
For each wetland, specify the following:
Directly abuts? (Y/N) Size (in acres) Directly abuts? (Y/N) Size (in acres)
Wetland CC Y 0.172
Summarize overall biological, chemical and physical functions being performed:
C. SIGNIFICANT NEXUS DETERMINATION
A significant ire.raas ana'rsis ;viii assess tine Iinw charac-.efisdes and functions of the iributar•: itself and the functions performed
by anv wetlands adjacent to the tributary to determine if then significantly affect the chemical, physical, and biological integrity
of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent
wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological integrity of a TNW.
Considerations when evaluating significant nexus include, but are not limited to the volume, duration, and frequency of the flow
of water in the tributary and its proximity to a TNW, and the functions performed by the tributary and all its adjacent
wetlands. It is not appropriate to determine significant nexus based solely on any specific threshold of distance (e.g. between a
tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or
outside of a floodplain is not solely determinative of significant nexus.
Draw connections between the features documented and the effects on the TNW, as identified in the Rapanos Guidance and
discussed in the Instructional Guidebook. Factors to consider include, for example:
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or flood waters to
TNWs, or to reduce the amount of pollutants or flood waters reaching a TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support functions for fish and
other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that
support downstream foodwebs?
• Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or
biological integrity of the TNW?
Note: the above list of considerations is not inclusive and other functions observed or known to occur should be documented
below:
1. Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain
findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section III.D:
2. Significant nexus findings for non-RPW and its adjacent wetlands, where the non-RPW flows directly or indirectly into
TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its
adjacent wetlands, then go to Section III.D:
3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of
presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to
Section III.D:
D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERS/WETLANDS ARE (CHECK ALL
THAT APPLY):
1. TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area:
TNWs: linear feet width ($), Or, acres.
Wetlands adjacent to TNWs: acres.
2. RPWs that flow directly or indirectly into TNWs.
Tributaries of TNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that tributary is
perennial: Stream C flows east for approximately 114 linear feet until its confluence with Perennial Stream A (Figure 1, enclosed). This
channel exhibited an average ordinary high water width of 1-2 feet, perennial flow, weak sinuosity, and substrate consisting of silt to large
gravel. Perennial Stream C scored 55 out of a possible 100 points on the USACE Stream Quality Assessment Form and 30 out of 71 possible
points on the NCDWQ Stream Classification Form, indicating intermittent status (SCP5, enclosed). A Photograph of Stream C is enclosed as
Photograph F.
Tributaries of TNW where tributaries have continuous flow "seasonally" (e.g., typically three months each year) are
jurisdictional. Data supporting this conclusion is provided at Section III.B. Provide rationale indicating that tributary flows
seasonally:
Provide estimates for jurisdictional waters in the review area (check all that apply):
? Tributary waters: 114 linear feet4-5width (ft).
? Other non-wetland waters: acres.
Identify type(s) of waters:
Non-RPWss that flow directly or indirectly into TNWs.
Waterbody that is not a TNW or an RPW, but flows directly or indirectly into a TNW, and it has a significant nexus with a
s;urisaic.tional. Data supporting this conclusion iis,)rcvided at Se on
Provide estimates tbrjurisdictionai waters ;,vithin the review area (check all that apply):
Tributary waters: linear feet width (ft).
? Other non-wetland waters: acres.
Identify type(s) of waters:
4. Wetlands directly abutting an RPW that flow directly or indirectly into TNWs.
Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands.
Q Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale
indicating that tributary is perennial in Section III.D.2, above. Provide rationale indicating that wetland is
directly abutting an RPW: Wetland CC is located at the downstream portion of Perennial Stream A (Figure 1,
enclosed). This forested wetland area is approximately 0.172 acre is size. Dominant vegetation within this area
includes black gum (Nyssa sylvatica), black willow (Salix nigra), ironwood (Carpinus caroliniana), silky dogwood
(Cornus amomum), false nettle (Boehmeria cylindrical), common rush (Juncus effuses), jewelweed (Impatiens
capensis), and various sedges (Carex spp.). This area exhibited low chroma soils (10YR 4/1), inundation to 2
inches, drainage patterns, and saturation within the upper 12 inches of the soil profile. A Routine On-Site
Determination Form representative of Wetland CC is enclosed (DP4). Photographs of Wetland CC are enclosed
as Photographs C and D. A Routine On-Site Determination Form representative of on-site non-jurisdictional
upland areas is also enclosed (DPI).
? Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary is
seasonal in Section III.B and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly
abutting an RPW:
Provide acreage estimates for jurisdictional wetlands in the review area: 0.172acres.
5. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly into TNWs.
? Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent
and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisidictional. Data supporting this
conclusion is provided at Section III.C.
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs.
Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and
with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisdictional. Data supporting this
conclusion is provided at Section III.C.
Provide estimates for jurisdictional wetlands in the review area: acres.
Impoundments of jurisdictional waters.9
As a general rule, the impoundment of a jurisdictional tributary remains jurisdictional.
Demonstrate that impoundment was created from "waters of the U.S.," or
? Demonstrate that water meets the criteria for one of the categories presented above (1-6), or
[ Demonstrate that water is isolated with a nexus to commerce (see E below).
8See Footnote # 3.
9 To complete the analysis refer to the key in Section IMD.6 of the Instructional Guidebook.
E. ISOLATED [INTERSTATE OR INTRA-STATE] WATERS, INCLUDING ISOLATED WETLANDS, THE USE,
DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY
SUCH WATERS (CHECK ALL THAT APPLY):io
? which are or could be used by interstate or foreign travelers for recreational or other purposes.
? from which fish or shellfish are or could be taken and sold in interstate or foreign commerce.
? which are or could be used for industrial purposes by industries in interstate commerce.
Interstate isolated waters. Explain:
Other factors. Explain:
Identify water body and summarize rationale supporting determination:
,'!'GA l ,? -=bt11-11W.C: :Gr 1Ui Q ik)11 u i %V?L tiI ',ili. - _': IC,ro Ii I :"C. .i] li '-ippiV2 J:
Tributary waters: linear ee: ,vidth ( tt).
?' Other non-wetland waters: acres.
Identify type(s) of waters:
Wetlands: acres.
F. NON-JURISDICTIONAL WATERS, INCLUDING WETLANDS (CHECK ALL THAT APPLY):
? If potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1987 Corps of Engineers
Wetland Delineation Manual and/or appropriate Regional Supplements.
? Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce.
? Prior to the Jan 2001 Supreme Court decision in "SWANCC," the review area would have been regulated based solely on the
"Migratory Bird Rule" (MBR).
? Waters do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction. Explain:
Other: (explain, if not covered above):
Provide acreage estimates for non jurisdictional waters in the review area, where the sole potential basis of jurisdiction is the MBR
factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture),, using best professional
judgment (check all that apply):
? Non-wetland waters (i.e., rivers, streams): linear feet width (ft).
? Lakes/ponds: acres.
Other non-wetland waters: acres. List type of aquatic resource:
? Wetlands: acres.
Provide acreage estimates for non jurisdictional waters in the review area that do not meet the "Significant Nexus" standard, where such
a finding is required for jurisdiction (check all that apply):
? Non-wetland waters (i.e., rivers, streams): linear feet, width (ft).
? Lakes/ponds: acres.
? Other non-wetland waters: acres. List type of aquatic resource:
? Wetlands: acres.
SECTION IV: DATA SOURCES.
A. SUPPORTING DATA. Data reviewed for JD (check all that apply - checked items shall be included in case file and, where checked
and requested, appropriately reference sources below):
Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant:
21, Data sheets prepared/submitted by or on behalf of the applicant/consultant.
® Office concurs with data sheets/delineation report.
? Office does not concur with data sheets/delineation report.
? Data sheets prepared by the Corps:
Corps navigable waters' study:
[ U.S. Geological Survey Hydrologic Atlas:
? USGS NHD data.
? USGS 8 and 12 digit HUC maps.
U.S. Geological Survey map(s). Cite scale & quad name:Skyland, North Carolina, 1991.
USDA Natural Resources Conservation Service Soil Survey. Citation:
r? National wetlands inventory map(s). Cite name:
70 Prior to asserting or declining CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA HQ for
review consistent with the process described in the Corps/EPA Memorandum Regarding CWA Act Jurisdicdon Following Rapanos.
State/Local wetland inventory map(s):
Q FEMA/FIRM maps:
Q 100-year Floodplain Elevation is: (National Geodectic Vertical Datum of 1929)
Q Photographs: Q Aerial (Name & Date):
or ® Other (Name & Date): See attached report.
Q Previous determination(s). File no. and date of response letter:
? Applicable/supporting case law:
Q Applicable/supporting scientific literature:
Q Other information (please specify):
B. ADDITIONAL COMMENTS TO SUPPORT JD:
Asheville Regional Airport Expansion
Individual Permit AiMication Project No. 2007-1889
Photograph A. View of Perennial Stream A, upper reach, looking downstream.
Photograph B. View of Perennial Stream A, lower reach, looking upstream
Asheville Regional Airport Expansion
Individual Permit Application Project No. 2007-1889
Photograph C. View of Wetland CC, looking south
Photograph D. View of Wetland CC, looking northwest
Asheville Regional Airport Expansion
Individual Permit Application Project No. 2007-1889
Photograph E. View of Wetland BB, looking south
Photograph F. View of Perennial Stream C, looking downstream
Asheville Regional Airport Expansion
Individual Permit Application Project No. 2007-1889
Photograph G. View of Unimportant Intermittent Stream B, looking upstream

North Carolina
Michael F. Easley, Governor
7,A
RCDENR
Department of Environment and
Natural Resources
William G. Ross Jr., Secretary
June 13, 2007
Mr. Anthony Nardo
Carolina Wetland Services
550 E. Westinghouse Blvd.
Charlotte, NC 28273
Subject: Asheville Regional Airport Project- Expa d Existing Airport infrastructure; l:tcl,er,
Buncombe County
CWS Project No. 2007-1889
Dear Mr. Nardo:
The Natural Heritage Program has no current record of rare species, significant natural communities, or
significant natural heritage areas at the site nor within 1/2-mile of the project area. [There are historic
records of rare aquatic species in the French Broad River, within one mile.]
You may wish to check the Natural Heritage Program database website at www.ncnhp.org for a listing of
rare plants and animals and significant natural communities in the county and on the quad map.
NC OneMap now provides digital Natural Heritage data online for free. This service provides site
specific information on G1S layers with Natural Heritage Program rare species occurrences and
Significant Natural Heritage Areas. The NC OneMap website provides Element Occurrence (EO) ID
numbers (instead of species name), and the data user is then encouraged to contact the Natural Heritage
Program for detailed information. This service allows the user to quickly and efficiently get site specific
NHP data without visiting the NHP workroom or w; iting for the Information Request to be answered by
NHP staff. For more information about data formats and access, visit <www.nconemap.com/data.html>,
or email NC OneMap at <[e-mail]>.
Please do not hesitate to contact me at 919-715-8697 if you have questions or need further information.
Sincerely,
Harry E. LeGrand, Jr., Zoologist
Natural Heritage Program
1601 Mail Service Center, Raleigh, North Carolina 27699-1.601
Phone: [phone] FAX: [phone] Internet: www.enr.state.nc.us/ENR/
An Equal Opportunity / Affirmative Action Employer - 50 % Recycled 110 % Post Consumer Paper
Nob-fthCaroHna
Naturally

North Carolina Department of Cultural Resources
State Historic Preservation Office
Peter B. Sandbeck, Administrator
Michael F. Easley, Governor
Lisbeth C. Evans, Secretary
Jeffrey J. Crow, Deputy Secretary
July 13, 2007
Anthony W. Nardo
Andrea L. Hughes
Carolina Wetland Services
550 E `x'esnghcuse Blvd.
Charlotten, NC 28273
Re: Asheville Regional Airport, Fletcher, Buncombe County, ER 07-1252
Dear Mr. Nardo and Ms. Hughes:
Thank you for your letter of June 5, 2007, concerning the above project.
Office of Archives and History
Division of Historical Resources
David Brook, Director
There are no known recorded archaeological sites within the project boundaries. However, the project area
has never been systematically surveyed to determine the location or significance of archaeological resources.
Based on the topographic and hydrological situation, there is a high probability for the presence of prehistoric
or historic archaeological sites.
We recommend that a comprehensive survey be conducted by an experienced archaeologist to identify and
evaluate the significance of archaeological remains that may be damaged or destroyed by the proposed
project. Potential effects on unknown resources must be assessed prior to the initiation of construction
activities.
Two copies of the resulting archaeological. survey report, as well as one copy of the appropriate site forms,
should be forwarded to us for review and comment as soon as they are available and well in advance of any
construction activities.
A list of archaeological consultants who have conducted or expressed an interest in contract work in North
Carolina is available at www.arch.dcr.state.nc.us/consults.htm. The archaeologists listed, or any other
experienced archaeologist, may be contacted to conduct the recommended survey.
The above comments are made pursuant to Section 106 of the National Historic Preservation Act and the
Advisory Council on Historic Preservation's Regulations for Compliance with Section 106 codified at 36 CFR
Part 800.
Location Mailing Address tetepnoneirax
ADMINISTRATION 507 N. Blount Street, Raleigh NC 4617 Mail Service Center, Raleigh NC 27699-4617 [phone]/733-8653
RESTORATION 515 N. Blount Street, Raleigh NC 4617 Mail Service Center, Raleigh NC 276994617 [phone]/7154801
SURVEY & PLANNING 515 N. Blount Street, Raleigh, NC 4617 Mail Service Center, Raleigh NC 276994617 [phone]/7154801

Thank you for your cooperation and consideration. If you have questions concerning the above comment,
contact Renee Gledhill-Earley, environmental review coordinator, at 919/733-4763 ext. 246. In all future
communication concerning this project, please cite the above referenced tracking number.
S' erely, l
Peter Sandbeck
? e

ASHEVILLE J
AREA CHAMBER OF COMMERCE
October 19, 2007
Mr. David Edwards, Jr.
Director
Asheville Regional Airport Authority
PO Box 817
Fletcher, NC 28732
Dear Dave:
On behalf of our Chamber of Commerce Board of Directors, I wish to commend you and your
Board for your initiative in preparing the Authority's acreage between the runway and 1-26 for
development. Clearly, Asheville Regional plays a major role in our regional economy and the
additional business envisioned for the northern sites will add to that positive economic impact.
I understand that you are in the midst of the permitting process and trust that will progress
smoothly. If we can assist in some way, please feel free to call on me.
Sincerely,
1X,
Richard J. Lutovsky
President & CEO
cc: Craig R. Wyant
'O BOX ioio A?HEVILLE, NORTH CAROLINA °Sso°
iS°_) 8-cioi F,-\X IS?;I 61.0cOb
wtn?/u,v,r.ashcvillccnaml.:.ore asn.vi I! co'ar nc,•i 1 11 c: iaml<carq
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Asheville Regional Airport Project
Individual Permit Application Proiect No. 2007-1889
Asheville Regional Airport - Adjacent Property Owners
Buncombe County
City of Asheville
Kachman, David and Martha
35 Branrick Ln, Arden, NC 28704
Mack JR, Woodrow and Patricia
5 Hidden Creek Rd.
Arden, NC 28704
Moss, Frank E.
13 Hidden Creek Rd.
Arden, NC 28704
Lanning JR, Geo and Connie
130 Tom Johnson Rd.
Columbus, NC 28722
Gibson, Charles R.
42 Rattlesnake Dr.
Sylva, NC 28779
Osorino, Arturo
PO Box 761
Mountain Home, NC 28758
McKinney, James and JoAnne
16 Nathan Dr.
Arden, NC 28704
McFalls, Clota J.
323 Jones Rd.
Fletcher, NC 28732
Woody, Jerry M.
PO Box 6318
Asheville, NC 28816
Green, Gail B.
10 Nathan Dr.
Arden, NC 28704
Case JR, Alvin J.
101 Hidden Creek Rd.
a
11
r
Asheville Regional Airport Project
Individual Permit Application Proiect No. 2007-1889
Arden, NC 28704
Henderson County
Henderson County
City of Asheville
Cadgene, Marie-Jeanne and Cadgene, Narcisse
PO Box 10
Redvale, CO 81431
Broadmoor Group Inc.
101 French Broad Ln.
Fletcher, NC 28732
Putman, Charles; Litten, Karl V; Kassouf, Lawrence F
90 Hillcrest Dr.
Weaverville, NC 28787
Trenary, Larry M; Atkinson, George W; Trutch, Steven A
PO Box 7625
Asheville, NC 28802
French Broad Associates
1609 Rockledge Dr.
Rockledge, FL 32955
?DIICKSON
community Infrastructure consultants
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community Infrastructure consultants
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Precipitation Frequency Data Server
POINT PRECIPITATION
r
FREQUENCY ESTIMATES
FROM NOAA ATLAS 14
North Carolina 35.4361944 N 82.5418056 W 2152 feet
from 'Precipitation-Frequency Atlas of the United States" NOAA Atlas 14, Volume 2, Version 3
G.M. Bonnin, D. Martin, B. Lin, T. Parzybok, M,Yekta, and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland, 2004
Extracted: Mon Oct 8 2007
Page 1 of 4
x++?s ?r:y ti 'S
Precipitation intensity Estimates i n/hr)
AEP*
5 14 15 30 60 124 3 6 1Z 24 48 4 10 20 30 45 60
_
(1Yn min min
min min min min hr hr hr hr hr
day
nd [
d
ay day day day

day
0 4.80 3.83 3.21 2.22 1.39 0.81 0.57 0.35 0.22 0.13 0.08 0.04 0.43 0.02 0.02 0.01 01
0 0
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0 6.10 4.89 4.12 2.93 1.88 1.09 0.76 0.46 0.29 O.17 O.I O 0.06 0.04 0.03 0.02 0.02 0.01 0.41
10 6.96 5.57. 4.70`: 3.40 2.22 1.29 0.90 0.55 0.34 0.20 0.12 OA6 0.04 OA3 0.02 0.02 0.0] 0.01
25 8.03 6.40 5.4I 4.00 2.67 1.55 F11 -0 0.66 0.40 0,24 0.14 0.08 0.05 0.04 0.43 0.02 0.02 0.01
F 50 8.81 7.02 5.92 4.46 3.02 1.76 1.26 0.75 0.45 0.27 O.160.08 0.06 0.04 0.03 0.02 0.42 0.01
100 9.60 7.63 6.43 4.92 3.39 1.98 I.42 4.86 0.50 0.30 O.17 0.09 0.06 0.05 0.43 0.42
-1 -1 0.02 -2
200 10.37 8.22 6.92 5.39 3.78 2,22 1.61 0.97 0.55 0.33 O.19 0.10 0.47 0.05 0.43 0.42 0.02 0.02
500 11.40 9.02 7.57 6.02 4.32 2.55 1.87 1.13 O.b3 0,38 0.2I 0.11 4.07 0.06 0.03 0.03 0.02 0.02
1000 12.2 19.62 8.05 6.52 4.76 2.81 2.08 .26 0.69 0.4 I 0.23 0. ] 2 0.08 0.06 0.44 0.03 0.02 0.02
t< ' ° `These precipitation frequency estimates are based on an annu (maxima series. AEP is the Annual Exceedance PtobabRity.
Please refer to the documentation for more information. MOTP FnrmaHinn rrtr .Oi-t-- -, moo.,, r„ -,, , - -m
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North General Aviation Development Grassed Swale - 1
?L[?c. _ ?j?FIj.,. ?;-, erc R -.n?n:?=<??glY?.{l.?x\?. fr.}? ?,Ay9F .:.?'.., ??.. .•? ?. t?<< ssn,Fl?s4,' ?A
??1??'f^?.ib?`h v?3 i2:if.f.U???LS?i.??v+???".Fle#???".wl?t?sf, i. 6n iK ?isk.?>?.••I^??'????.. n .un???f?. ik.7s^... 'E1?e`.1k
Friction Method
Solve For
Manning Formula
Normal Depth
<t'e ...?. ?...R ?../ .ty. y? ? 'J, y?'.?' 8•'.a ?uTM. .... y.,' FM 1 . - {? f .?F
?' ' `ft.Z£S?+ `,.}n 7?: ?'yA'\kY.a'. ,yz.:. ..'<`' ??+"'?°°';;?'z,?.. z?:k?t+vitl ? 2'M,y??. ?_ t• d.'!„ -...S:Y?+'Y"';s?y?l ;`. ",'f'.Y'".. .:;w?
F, }'}?g?' s1. 1? Y ?t(+s?i S ?? ?` F'yKA i s' S a `? •?' +E Yr .>.F f f
Roughness Coefficient
Channel Slope
Left Side Slope
Right Side Slope
8ottom Width
Discharge
Normal Depth
Flow Area
Wetted Perimeter
Top Width
Critical Depth
Critical Slope
Velocity
Velocity Head
Specific Energy
Froude Number
Flow Type
Subcritical
0.035
0.00100 ft/ft
5.00 ft/ft (H:V)
5.00 ft/ft (H:V)
10.00 ft
11.46 ft-/s
0.82 ft
11.60 ft2
18.39 ft
18.22 ft
0.33 ft
0.02728 ft/ft
0.99 ft/s
0.02 ft
0.84 ft
0.22
Downstream Depth 0.00 ft
Length 0.00 It
Number Of Steps 0
'4
_€?'.?'.tYaSZ1r
Upstream Depth
Profile Description
Profile Headloss
Downstream Velocity
Upstream Velocity
Normal Depth
Critical Depth
Channel Slope
Critical Slope
0.00 ft
0.00 ft
Infinity ft/s
Infinity fits
0.82 ft
0.33 ft
0.00100 ft/ft
0.02728 fUft
Bentley Systems, Inc. Hassled Methods Solution Center Bentley FlowMaster [08.01.066.001
1011612007 3:46:25 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 1
North General Aviation Development Grassed Swale - 2
s?)1,ns w?? ???¢>?' '"'3`'?^?'7 . ? ???D,1;??Xy,i,R?t1.,4F . g";????'. • a? 'T '.
h ;f a? tit w3 t ?? ?a. c a is e. dui U -1 R y?
Friction Method Manning Formula
Solve For Normal Depth
A ! 3"?Z?e y?3e'' e '>Y i +. r `?? 1:.7.:L3:si•i.+?:.t'?'v?? Il? ???
I? ., .. x, n..y, .?.?en.r.,.a....sw'.?.W.:S4) ?£{. ';F.ii..e. tSSSS°??...44 ? ? ;..?.{ ? ? Tii .S?i;aiT ....t .t .ti.iR A t w.:.<.< ? .e ?.? L ?3 ;??`•Y
Roughness Coefficient 0.035
Channel Slope 0.00100 ft/ft
Left Side Slope 5.00 ft/ft (H:V)
Right Side Slope 5.00 ft/ft (H:V)
Bottom Width 28.00 ft
Discharge 23.00 fN/s
?.H•:. ..?: .:i?Y?-:..`?+??.`,7F?^. .,?:o .a'wa5urianti',..?w.??. ?s.??t'a?a?eri. ° :t:.4:'?.d_u. r. snl?.,?£i ?w R "`t.....ro 6. ; ? it! ?'?f.... ?a ?l?eu's.Q`?
Normal Depth 0.72 ft
Flow Area 22.90 ft'
Wetted Perimeter 35.39 ft
Top Width 35.24 ft
Critical Depth 0.27 ft
Critical Slope 0.02806 ft/ft
Velocity 1.00 ft/s
Velocity Head 0.02 ft
Specific Energy 0.74 ft
Froude Number 0.22
Flow Type Subcritical
?? "'8 ,??? ' } ` ????????? ? ?Si?rr:• ?t t iTC A?&?r?? p r >,> ST` ?rt:.^. _ ?ttW;?? zb'"k??
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
INHIMi ?
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 It
Downstream Velocity Infinity fUs
Upstream Velocity Infinity ft/s
Normal Depth 0.72 ft
Critical Depth 0.27 ft
Channel Slope 0.00100 fvft
Critical Slope 0.02806 fVft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FtowMaster [08.01.066.001
10116/2007 3:46:00 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 1
North General Aviation Development Grassed Swale - 3
?'x i%.$?tq it " ?? s4M1 ..f :Y•• ;N: 4}'• ??Y. ?2h'Fr? ? ?fi????i"'Yv tit 'S»•?.P':.'S, } 'S ) YF•7
tt?1?J??ink???e??.a?a'?ttr:i?.6?v?.,,'?. nxvt:'??".•.' i??x??'?tE???sr?.'C??i '?i'a93 nl?to'?Y.7.'+r?'. .'?.t...?? ??' c??c.,... .. .'..'F. k.3n. ?YSL?.-.'?
Friction Method Manning Formula
Solve For Normal Depth
''+„rT ^•l 'Ff .niA? d <`•r f 44 ! ° "' >' V f! ,L OEM' V116111 0-11'3111- ME" ? , to sa,+t:"f
Sy? r f# Z fi>'iJ i z ..+Ci Yc'x" t 7? ?iFN it?({,? 4 ?4,?y?Fly§a t i?; •1'?l'ry.?!d `Y "irt< ' ??y,x?. s{{?. t oRt h t , ?"? k,"' ?? k •'
'..,Gt.?WAi.•?..3i?fC'Pr,,.u.;SL .a.i.Ce-l:C'$'.....?r, .l'i..ttL. ..:.F,xNci?>`9: a,?f ?.t '>' .5.. ...'ya?.. ?.'»...
Roughness Coefficient
Channel Slope
Left Side Slope
Right Side Slope
Bottom Width
Discharge
0.035
0.00100 ft/ft
5.00 ft/ft (H:V)
5.00 ft/ft (H:V)
28.00 ft
23.49 ft'/s
svt
-...a.. fi a, :.? E WA . N.
:? :f?....•i s• t r.}f2?: ?s
0s::x " '
Normal Depth 0.73 ft
Flow Area 23.22 ft=
Wetted Perimeter 35.48 ft
Top Width 35.33 ft
Critical Depth 0.28 ft
Critical Slope 0.02794 ft/ft
Velocity 1.01 fus
Velocity Head 0.02 ft
Specific Energy 0.75 It
Froude Number 0.22
Flow Type Subcritical
??5?'?..4???i??E?4???XFyS. -. ,. Asa ,: ??:T4Ryl?;7??161.2k??? . R . 'zsF ''?. •'f 91 A¢??..:..' fa?'kl ??Sf.'a?'?3..Y,y1'? ...wF???S:h:s
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
?i?„?.. `?`.???.'.'?.??'z'???h'+y?•'l p[^?`??5?'FFE,E1`ir?.?'S..x .r b? ??T?"?•????4"1t? tC ? •,?s,.?r ?•.. ?;' y t<. ?•?
Upstream Depth
Profile Description
Profile Headless
Downstream Velocity
Upstream Velocity
Normal Depth
Critical Depth
Channel Slope
Critical Slope
1011612007 3:46:22 PM
0.00 ft
0.00 ft
Infinity ft/s
Infinity fis
0.73 ft
0.28 ft
0.00100 ft/ft
0.02794 ft/ff
Bentley Systems, Inc. Hassled Methods Solution Center Bentley FtowMaster 108.01.066.001
27 Siemons Company Drive Suite 200 W Watertown, CT 06796 USA [phone] Page 1 of 1
North General Aviation Development Grassed Swale - 4
Friction Method Manning Formula
Solve For Normal Depth
{p 53=}}rru{?`?'?g."4e1 ?. +K? _ ? T ? ? k?,b.+
j>'gA'o?5?„''?.
a ?il?s 4...... 4FEwi:'A?"Qa Ja.. V Ylti? \? 'R..?r.t?..ft,? ? 3
Roughness Coefficient 0.035
Channel Slope 0.00100 ft/ft
Left Side Slope 5.00 ft/ft (H:V)
Right Side Slope 5.00 ft/ft (H:V)
Bottom Width 28.00 ft
Discharge 23.49 ft9/s
< •? ? ?s a-
Y. '} ?L Ji.FJSN " ??M fJ i .a1 ?uI ." ?.1.Eu?.b?.+?i•. A i?. ? 28'.K , ..S: a:i 'v.?pW.PiN?.:kiY?L• .. 6 ':. .'G :u+ SSA
Normal Depth 0.73 ft
Flow Area 23.22 ftz
Wetted Perimeter 35.48 ft
Top Width 35.33 ft
Critical Depth 0.28 ft
Critical Slope 0.02794 ft/ft
Velocity 1.01 ft/s
Velocity Head 0.02 ft
Specific Energy 0.75 ft
Froude Number 0.22
Flow Type Subcritical
IN,. : r u 0 n <, Z?h
Downstream Depth 0.00 It
Length 0.00 ft
Number Of Steps 0
fFk,,i Sx1' ^Q.? ?• a' ,:g . ? ?Er c ''¢e?s^',. _?: ' ??` ? • M'c $?r??'ar'?
Pl?if/'.2?A1 fi .il?a:??f .. • ?????? .vS . .f ?1? ?13??iJR ,$l2S.P°°' ??`?sf
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 It
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Normal Depth 0.73 ft
Critical Depth 0.28 ft
Channel Slope 0.00100 ft/ft
Critical Slope 0.02794 ft/ft
Bentley Systems, Inc. Hassled Methods Solution Center Bentley FtowMaster (08.01.066.00]
1011612007 3:46:44 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755.1666 Page 1+ of 1
North General Aviation Development Grassed Swale - 5_
v:zim?/'?vlp (L? ENSURE, ?. .f,r?„" ..•
ldis?usxse.`7'1r t1111
? R???dk4W
Friction Method Manning Formula
Solve For Normal Depth
wg
..s
:*? J1 y: > #' ix . ,:.Y.:, . • „'' .'i ?.'_•`F.;, : ,f<ar_. `.. `:?; ' ,Rf3' -"?"'.. ..
1:9.. ?.J???'ti??.??R??::Sk 4!1.3?,?????G?.i??.'???.? ?w?`;•'N'?:CFIi,Q?Sk?'?'N":3 34f ',....?'?fAS?ti?.f? g?.:??if.a>VsY?.vN{'_.._b?":5:.?3iX.*?>fr., .>?fk?wi?,k??y K%ncf .
Roughness Coefficient
Channel Slope
Left Side Slope
Right Side Slope
Bottom Width
Discharge
0.035
0.00100 ftfft
5.00 ft/ft (H:V)
5.00 ft/ft (H:V)
10.00 ft
11.90 ft'/s
?S? a??•? x . . • ,'???y'C„? L7 ?f ,a ? J S i??' ?? y? ?Y?.?*L???f ?'Y+' + ,? e 3 k. '??.t?t?
Normal Depth 0.84 ft
Flow Area 11.91 ft
Wetted Perimeter 18.55 ft
Top Width 18.39 ft
Critical Depth 0.33 ft
Critical Slope 0.02710 tuft
Velocity 1.00 ft/s
Velocity Head 0.02 ft
Specific Energy 0.85 ft
Froude Number 0.22
Flow Type Subcritical
O N
ft }F`. T f.3 3:
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
6• I ft_ ^x, y -?? 1v .r.. .g ., ?, .,?,,, '8. .Yi"rSFir
(t. rtY?. t. itt •it
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Downstream Velocity Infinity fVs
Upstream Velocity Infinity fVs
Normal Depth 0.84 it
Critical Depth 0.33 ft
Channel Slope 0.00100 ft/ft
Critical Slope 0.02710 fift
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [00.01.066.00]
1011612007 3:46:59 PM 27 Slemons Company Drive Suits 200 W Watertown, CT 06796 USA +1.203-7554666 Page 1 of 1
North General Aviation Development Grassed Swale - 6
Friction Method Manning Formula
Solve For Normal Depth
'KP "..?? `{it?.?`^u.iY :r, i:l,:£ZTL: ??:fi.? ::ke ,.??` u7sw:fyr "P iiHf)y?•. '+-ilrxry.. .
.?p?ar., l;•}rv .,s;ry ?M s
{'1 ?? g !n vAw%' L alt t?r' ne y r °?"• "?S4 ,ski.. fp ?isY? ,ge;?a y? r.; - i? .?.t
^yFil4ay??.'r?Y;s:5'?": l,<??i???t'x.??
I!? F?'
NO G?n..r .....
Roughness Coefficient 0.035
Channel Slope 0.00100 ft/ft
Left Side Slope 5.00 ft/ft (H:V)
Right Side Slope 5.00 ft /ft (H:V)
Bottom Width 44.00 ft
Discharge 32.70 fl'/s
i x Ar ; 4:« i"'.... ,f... ..yr.=. .?. .,'y{?33':.wA a'e Y •Y •s:YS•..!'°`?.. 's s. • .i.+7 '":C?j, F. ..Xi'.A;.r.. . 7N' !yY F. ,.:s?.
E+w. ??? ra=s??'???'...???xA?; '???.?«?'•.Ea?c:?:sa??i?F?'.?.' `?` ?? `?s' '?_.?"9a`E'. _ ?ss?? ? +. • ?ri<s'?
Normal Depth 0.69 ft
Flow Area 32.73 ft'
Wetted Perimeter 51.04 ft
Top Width 50.90 ft
Critical Depth 0.25 ft
Critical Slope 0.02844 ftlft
Velocity 1.00 ftls
Velocity Head 0.02 ft
Specific Energy 0.71 ft
Froude Number 0.22
Flow Type Suboritical
, is, ;.. ?: 4:'G IN NO'! "1 1 -6
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
Upstream Depth
Profile Description
Profile Headloss
Downstream Velocity
Upstream Velocity
Normal Depth
Critical Depth
Channel Slope
Critical Slope
1011612007 3:47:20 PM
0.00 ft
0.00 ft
Infinity ft!s
Infinity ftls
0.69 ff
0.26 ft
0.00100 fttft
0.02844 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMastsr [06.09.066.00)
27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1.203-755.1666 Page 1 of 1
North Genera! Aviation Development Grassed Swale - 7
1?=
1.?i ? r?spSy. s . , n . .'S??zcr . ' c. ?s?'+.?y .? ii : t?x 3Y`.ca>tn??»vel.a a$ay t ??bi e
Friction Method Manning Formula
Solve For Normal Depth
s.
s"i .. ;".,F r - .it; ... ...vj, ?..•??=ast<?'.•. ?. c?.,ip';?e^- ?:'? ;f:,,n <?nai+}%?r$?x,? ";a<,'?:?.' e%*?.r-•c,.. rr'Oirl .'.lr? •??n3'aC•Y`^-: ?;:;"„?„?<E•*•y
'
t?b iF P?R?}?`4 ?C??3£x?llxe ?SaF P 7 Lr $ Yv ?y
41.
c..,a .,..r?i.._?. .-. _fs_r?..s§;?.ur...,?.?".,Ir:3?d'2?9i?.rus 5>Z-. ,r.: .tb e. .a. Es t?. is ?.wr.,. l.s. ?Y,..s .s,•... do. .....s.??.,.,.. .::?.a :??. `w, ..?S.,V ,..»-?r ,....:.5:.liu
Roughness Coefficient
Channel Slope
Left Side Slope
Right Side Slope
Bottom Width
Discharge
0.035
0.00100 flift
5.00 fUft (H:V)
5.00 ft/ft (H:V)
2.00 ft
6.09 ft'/s
?sp,.:.ye??»?-'j]-°??)4ry;?3g'?4?'::^r-.;F:???,j.^„?d ?.ra -?'fj`?:j`cv:?.?ai?"l ??'??1.';sS?S. `:?,?..?x^?".aSy!c?°?;?3 '?. 3? ?<.' ..'??x?'?e;..a'?? _?;-x? '?t? ..
Normal Depth 0.97 ft
Flow Area 6.68 ft'
Wetted Perimeter 11.92 ft
Top Width 11.73 ft
Critical Depth 0.46 ft
Critical Slope 0.02720 fUft
Velocity 0.91 ft/s
Velocity Head 0.01 ft
Specific Energy 0.99 ft
Froude Number 0.21
Flow Type Subcritical

Downstream Depth 0.00 ft
Length 0.00 It
Number Of Steps 0
NOW
Upstream Depth
Profile Description
Profile Headloss
Downstream Velocity
Upstream Velocity
Normal Depth
Critical Depth
Channel Slope
Critical Slope
1011612007 3:47:32 PM
0.00 ft
0.00 ft
Infinity ft/s
Infinity ft/s
0.97 ft
0.46 ft
0.00100 ft/ft
0.02720 fifft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster 108.01.088.001
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North General Aviation Development Trapezoidal Channel - 8
Friction Method Manning Formula
Solve For Normal Depth
Roughness Coefficient 0.041
Channel Slope 0.09200 ft/ft
Left Side Slope 3.00 ft/ft (H:V)
Right Side Slope 3.00 ft/ft (H:V)
Bottom Width 8.00 ft
Discharge 29.90 ft'/s
4
19:.;'S
Normal Depth 0.60 ft
Flow Area 4.79 ft2
Wetted Perimeter 11.18 ft
Top Width 11.02 ft
Critical Depth 0.69 ft
Critical Slope 0.03022 ft/ft
Velocity 6.26 ft/S
Velocity Head 0.61 ft
Specific Energy 1.11 ft
Froude Number 1.67
Flow Type - Supercritical

Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
? vs ??'t ? '?, qtr( ?? tiY;M'?'? r• ?l? ?tis,?i,+ ?h, Y'?'; ,:s't ?f • `ff^ , ' ? •? ,Y ?.
??a;r?iS£??• , _ao?.?a?y ??ftK???'iw ' .??9.x?'?x?'i ?.4 .. .• .. a ?i ??a
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Downstream Velocity Infinity Ws
Upstream Velocity infinity ft is
Normal Depth 0.60 ft
Critical Depth 0.69 ft
Channel Slope 0.09200 f ift
Critical Slope 0.03022 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
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North General Aviation Development Trapezoidal Channel - 9
is t,.. ,_.ry,Y'wr rwx .?,. .^e??;y "YS?;- K^? crr??R?.?r?.,x .;?.gk• .• .?e.:.. .?'"4`sE`,r?I r? "Aa
'.??`#Ta?w?-2•z',q •T?t Itr 'bp ? +;
:z? 0. zR A;,?" - v:o,1kFAI ? . F.-I'M R':R&A: ' s a
Friction Method Manning Formula
Solve For Normal Depth
'`i?5t .rl`m R? °Js?E r+ .? 'S'Sz%&?'t ? e'rhG?^?$G? ?r".xiXl r ? i"` 4,/!' ^D??'. ;•sn#" a;. ,S' ?,r ? ?;...., y? o g"`
x7r f ?? ?tYr fi?ee.. `.s t ... ?_:?.ts,xa}?»!`r>c?..a??r}3Fi ,:,YC?.M"?:??u?t+?`an._.,. ?fi?5? ^• #: x ???? 3 G. ^..,X ..sR,;w, ti,+a, ?as.'?saLk..?o-tsx
MEN,
Roughness Coefficient
Channel Slope
Left Side Slope
Right Side Slope
Bottom Width
Discharge
0.041
0,05800 ft/ft
3.00 ft/ft (H:V)
3.00 fttft (H:V)
8.00 ft
34.84 ft31s
+•• ??:??' ??,'?il';j?zxx? .rsr-r;C? ? ''%sy??Y„??3''?it k?aa _?_?3?,'?'a? 4; "•54 -y;? (t -ss}'ii ,?+ g'? sr . ?''i.'??? ,'?..',?„ .r:.. •ar.; ?xr;-x
??;??.? { ?'§m? ?ln?- r??•r.x'??`' ?aG` KS? rte' e°n?'3?iri?,. "A;:?+r?n' ?a?. ????' a<Y. , r ? ' ? 4 1 i 3?
{.:bnt ?? ? ,S:irea w ?.#r 3:1..et.?:..?fw.a ??tr. a6.a.:. ..u ., rt..e'a, t.aL.+au ? .. ,'?ii1•A.. usth
Normal Depth 0.63 it
Flow Area 6.19 ft'
Wetted Perimeter 11.96 It
Top Width 11.76 ft
Critical Depth 0.76 ft
Critical Slope 0.02947 ftlft
Velocity 5.63 fUs
Velocity Head 0.49 ft
Specific Energy 1.12 ft
Froude Number 1.37
Flow Type Supercritical

Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
g_..%# ` .? _It }7? ??•'? . tiA??`x'??'^`? tx;° U'",t c+,"'• n'^ Y Y,K?:y . !7r?:? •y va ? , nv ? „'L,Ly?°ea ? an 3y>• a.
?r?r'v?"tc?"9?`•t'w????`??.??????&3t';??£?.?.:Ss??.?.., .?.ss'ti?..• , w'c.. a.: .. ?'fr ?,:t.. .. ?° s?: ,,,.??Sr????.?.?,
Upstream Depth
Profile Description
Profile Headloss
Downstream Velocity
Upstream Velocity
Normal Depth
Critical Depth
Channel Slope
Critical Slope
1011612007 3:47:58 PM
0.00 ft
0.00 ft
Infinity fVs
Infinity ft/s
0.63 ft
0.76 ft
0.05800 ft/ft
0.02947 fVft
Bentley Systems, Inc. Hassled Methods Solution Center Bentley FlowMaster 108.01.066.001
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North General Aviation Development Grassed Swale - 10
Friction Method Manning Formula
Solve For Normal Depth
Roughness Coefficient 0.035
Channel Slope 0.00500 Rift
Left Side Slope 5.00 Rift (H:V)
Right Side Slope 5.00 ft/ft (H:V)
Bottom Width 14.00 ft
Discharge 2.84 it'/S
iiS'-x. G' ?j.; . ?s{? t y :`^? ? t'.N:.X,?4??'`? ixfsiY!?" ?t?+; t a ^cr {w •?? r? ?•:•???vvu"? :tt1.`??'.
.-?.."? : ?? '? ).'?+tj: ?' ?. ? ; _ : ?'a?}fin 's• ~?R??'?a?4 ? ?iE+µi.? _.y;??z;^;4?.H?.? : kir.??r?".$s?''.':@46Rk:}$?.t,?..?xx..ii; ? _ `, . ??. ? .
Normal Depth 0.20 ft
Flow Area 2.93 f:2
Wetted Perimeter 16.00 ft
Top Width 15.96 ft
Critical Depth 0.11 ft
Critical Slope 0.03812 ftift
Velocity 0.97 ft/s
Velocity Head 0.01 ft
Specific Energy 0.21 ft
Froude Number 0.40
w Type Subcritical
F
o
jl(
[\S
?
? .i
c«;
?
?}
?
t
?
,.
?
?? ^
??
'
?
?
?
6;Y,
b .
?i
u?a'
. .x y'
+?w:iz1?4
} ? .. ?
?r'>{
?
`?`eu ....
sr
. ?
:? x
•
?
`
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
lCY F ;j \ ?*•d?+Y+`ti i ••'! "`Y f??yy{ 4. t r -' 7 ? ?
Ei ?':iC ?.? wt ?Rp??[Xu??l::???.r!?3'???? ?[.?(?4`C ..s.?'%?? ?.. a??..t?'iY' ? ?^• .S ? .. ?f
Upstream Depth
Profile Description
Profile Headloss
Downstream Velocity
Upstream Velocity
Normal Depth
Critical Depth
Channel Slope
Critical Slope
9011612007 3:48:13 PM
0.00 ft
0.00 ft
Infinity ft/s
Infinity ft/s
0.20 ft
0.11 ft
0.00500 f ift
0.03812 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FtowMaster [08.01.066.001
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North General Aviation Development Circular Pipe - 1
i *=?:1 '?::?. ag?.,?„ ?nt? t?3..?. ' *11 ,
I i'?3 `.a.•F?'u"r?'aw.'.1..'.d Y:w': x?•x.%ox'.w-1x S:k?,vx;'Sx?i? °1F..3:Yx'.c - •. .1..•? .-1 09 N "WOR.A?:6`h??SFst. Tf." 911 ..i+?'r ii.,
Friction Method Manning Formula
Solve For Normal Depth
-•k; .e
ygyR?.:. : sc+3a,et'a
r ?a{' ?"x}r"t3??t` •'€(4,-{f&E?+ ?#??`h'Y?#t.? ?`?K`S?;?.f? a ..!•i?? < t?v'' n t ? 'i?'r ?._ ??.?'.?t?h?s.7 ?? u i? ??" r"? +q ?'l c f'iEt<` s bVa.?."'.Srpaq?a ` ?kc `Laa?mo,"srTe,' , ?: N?? ;ki1 x?Yf, t f/k82?'d q
?'?:s;? .'a,.?;'4?r,?.?.i?I,,'.rf?kr"?,e'v . . ?iw s".'^'V1n a"n•`?.tvT.k'4i ?`.a? .«Fr: ar ts.7:.:..R#k'?'?'?..7' ia?a?f, . «.a;C•tf:r'so• f 'ct'ae
It
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.00 ft
Discharge 7.30 fP/s
W{,t'
., .tom D1??ii?.ax;ec?x?ia?._...x..?3>x.i,...??a???????5 .t? .. »x:? .f?a?•;ia..a.. d5.:;fi • .ck 7:?`?:. 'tta. _ R.. ?Tz4"
10-41:51"
Normal Depth 0.95 ft
Flow Area 1.47 ftz
Wetted Perimeter 3.04 ft
Top Width 2.00 ft
Critical Depth 0.96 ft
Percent Full 47.4 %
Critical Slope 0,00479 ft/ft
Velocity 4.98 ft is
Velocity Head 0.38 ft
Specific Energy 1.33 ft
Froude Number 1.02
Maximum Discharge 17.29 fN/s
Discharge Full 18.00 ft'/s
Slope Full 0.00104 ft/ft
Flow Type SuperCritical
?`?31??x? ? .., ? zV" A.?'..'..:..?`i?,. ???.f?fw'z??C ?~a'?.??? xFx•:Tx:'au ??t?.:T"?.a?a' "•?a?'??? ?Sw :• £ . k '"???.w?'.? .?a . .d.,i fit ? a.
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0

Upstream Depth 0.00 ft
Profile Description
Profile Headioss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 47.40 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FtowMaster 106.01.066.001
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_ North General Aviation Development Circular Pipe - 1
NO ?} S Y
u???.s?ls;s 1;s?a..,#4 ??ata,.*s:t 'TEMt:?i?k
Normal Depth 0.95 ft
Critical Depth 0.96 ft
Channel Slope 0.00500 Rift
Critical Slope 0.00479 Wit
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
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North General Aviation Development Circular Pipe - 2
111. ?N}RV?'j['C<^?'.f^.?? ? "t.?.
I'*s''z+..?cl??wk.' 'itiY?$'?tu`^".??S:r3a?z,''.:'
Friction Method Manning Formula
Solve For Normal Depth
- a W v:.r?' F ctia ? Ci 'fir s!`? az ggti?.?y,,." ;. 'Le ?, tav`?plt >r •v; ?• ,?.i? YES `R r esT#yC ` A,??'? t'*, r+ t;4t`ta
. F s! 0 Ste' _. f?.'m a Yi 3 Y Wi 1 1 t 1, `? K
R .?.r:.t..i{><.l,..i.?.R V?
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 3.00 ft
Discharge 10.26 ft'/s
.?il'S:?;.'eR` _?. +{.-?j4!Pli ry'..:. R ?>.7+=. y..?,? e?G`?c •.".'7iQ t'?."AV??:%;3''. 'h.??„.•'??.a;?•?p.?• - ?r'•
pVa!ry?,??? ?+?? ???`h???`3 ky??%,?Cp;i??? ? ????, ? Altf??y?F? y' ,# '?(1 tFf U++f: j ?1F.?'Rg`k' y M9?•
sk+e 1'r:,a._::??. x??:??a.:i'.??t?1tt+.,r. =..? 'sY:.•i?xC'.?.1L!:W?rrA. ?5?.?'<'..rkXesa s'??a: .I.'kj??.?'"i.?t ?^t???labri: .3's??YY .a?ck.,t?",?.vraii4«o:
NOONTIME
Normal Depth 0.95 ft
Flow Area 1.92 ft'
Wetted Perimeter 3.59 ft
Top Width 2.79 ft
Critical Depth 1.01 ft
Percent Full 31.7 %
Critical Slope 0.00391 fUft
Velocity 5.33 ft/s
Yelocity Head 0.44 ft
Specific Energy 1.39 ft
Froude Number 1.13
Maximum Discharge 50.73 iris
Discharge Full 47.16 fNls
Slope Full 0.00024 f tft
Flow Type SuperCritical
-
11?ir?.i1<SY ? s?
?I!ST?? ", . t tax z. • ?:>.?,u
??`?s1.4. '?'Ft?.. • .. ?'??Sr: w'?IAY??.4'? 3n , r,,,t • ? 'j,. t,?`c 3
??•fa'?'lFY .iH. '?:?4.°VSYMFa:.o w a.A»?•
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
E.TV6•W3 =?eR ?4tt1?t•Y =A , ?45? _. .6i4F- % .w.' ?iw0.V. :'..
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 31.68 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Hassled Methods Solution Center Bentley FlowMaster 108.01.088.00]
1011812007 3:48:41 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1.203-755.1068 Page 1 of 2
North General Aviation Development Circular Pipe - 2
I(?inx?}tti"x.3'S'JL'..,.} ?x ?w X*.?$nyF`t'y^y rr?,,+%7,;"yy' a r ?-' b 17Y>
... r.'rsi ' 6H x• of .ate • s" 'z'I-.'
J'A H, afdu;Y1 .`'6w`aau{.:I "MIA
Normal Depth
Critical Depth
Channel Slope
Critical Slope
0.95 ft
1.01 ft
0.00500 fNR
0.00391 ft/ft
Bentley Systems, Inc. Hassled Methods Solution Canter Bentley FlowMaster [08.01.066.001
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North General Aviation Development Circular Pipe - 3-1
k
Pe";+.t???V105-
J
t,c., ra s,3a. Iii :? a l.• _ }ar?3s U an`,
IN
Friction ?2q? a*;.; 'ma'r 'sy,??wiM1,?w .a ..;? ? ::fs r";.,c.:; {?,qq 'i `?+;, :.^.?..«-v ?:, .;?r "'eF?.. _ •gg :?' a.:R..
Method Manning Formula
Solve For Normal Depth
r ixxrs t \`m s a,F
e:. Y xh ex J ti? tm s e. "':Sv' :F ?...Ali
,
`?,'.v, 3.s02 eG?i",Y..tx:,. ,..&:u7SnSv7
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 1.50 It
Discharge 3.13 fr/s
MAN F6`a"3,?' ..crop'?,e•i'L T' aghw v .. -
gp'
} ??"i !Eta Y . C i e iw; +bi x:r" hv'
."`J. ?`3.?i-.ez9?l?la ? ??du?
11%
Normal Depth U.bd ft
Flow Area 0.78 ft2
Wetted Perimeter 2.22 ft
Top Width 1.49 ft
Critical Depth 0.67 ft
Percent Full 45.3 %
Critical Slope 0.00517 ft/ft
Velocity 4.02 ttfs
Velocity Head 0.25 ft
Specific Energy 0.93 ft
Froude Number 0.98
Maximum Discharge 7.99 ft'/s
Discharge Full 7.43 ft'/s
Slope Full 0.00089 ft/ft
Flow Type SubCritical
g
n.'}?• w. ?; '? tti[?e1?y i?;??? A? );!CY?,??)'? e,[y? F?c,rx g ? GRY . ? ? Iitn °6C?; %' ;rtl. .XL;j ?af?y-.e
?t?????Vf.?;{??tis3?.'4^'t'i'?RTV??..Yn.;4?21??.3. . rt f? ,.{?`.y?:••4?5C J??` .?aCi3Z.. ttliK! r?f.3utX
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
''t/ "$?,y(? 1? ? ,t'Y?,J ?`l4?? +utYVy ? st l.?flp t;?g?t?ata?"F; t d tR,>`.. `? ?; Mg M> }.f 2: t ri ?? •' h ???t ?4.
:4.' S: ?K•? SY?????I?????LM?.rzI;?SYxieeS`???!?r??T:T"-.Qi??.xm ?',' i1- j. es ..t ... e.:?*Fi.k.
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 45.31 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ftts
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [!)8.01.068.001
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North General Aviation Development Circular Pipe - 3-1
Normal Depth 0.68 ft
Critical Depth 0.67 ft
Channel Slope 0.00500 f ift
Critical Slope 0.00517 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FtowMaster [08.01.066.00]
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North General Aviation Development Circular Pipe - 3-2
sfii?r?» k# S;'>, cY^« ', ??f>??? ° L, xwgr av 'T
?s?.t?L&??u
Friction Method Manning Formula
Salve For Normal Depth
.. a..?? Ct Y S °'.y?;s `?f;'rvr:x<,? .rt; w .s?i?"'+:N tii+?'+x• =a-•. ,: ,y, w;?' g.4 •w-?>.F ..'.32acvxr.' h:s:.>? xaq' ,g-
py,•;
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.00 ft
Discharge 7.47 ft'is
v?:> : "?K,;t -u X ,fr.w s'. .? ..i?.,.- , j??.? 7?, °"^'1''k9S"_ Y?resa=g •'Z>? ? feE n,?•?a' . ? r=?'<r•Y. - - .,t
HIM#
Normal Depth 0.96 ft
Flow Area 1.49 ffz
Wetted Perimeter 3.06 ft
Top Width 2.00 ft
Critical Depth 0.97 ft
Percent Full 48.1 %
Critical Slope 0.00482 ft/ft
Velocity 5.00 ft/s
Velocity Head 0,39 it
Specific Energy 1.35 ft
Froude Number 1.02
Maximum Discharge 17.21 "s
Discharge Full 16.00 fN/s
Slope Full 0.00109 ft/ft
Flow Type SuperCritical
1" 7111,0110110701 Oil
Downstream Depth 0.00 ft
length 0.00 ft
Number Of Steps 0
t`?'y?y??`?/}'?,•. 1. ... .;. ?,? ? . '.?? v z ;??g:, . ? .,..?.. g i?r - - X
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 48.06 %
Downstream Velocity Infinity ft!s
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley PlowMaster 108.01.066.001
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North General Aviation Development Circular Pipe - 3-2
1.: ``,?,', bt' .
? . ? st,
Normal Depth 0.96 ft
Critical Depth 0.97 ft
Channel Slope 0.00500 ft/ft
Critical Slope 0.00482 fftlft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
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North General Aviation Development Circular Pipe - 3--3
rpm ? $ ?7.2iy? N { • 7 ?? ? ?Fi9 ?"jk??°r;? ??€ ??Y'F"?k ??,yS."` xR?' '? i'F?•'R' ,.? } i. ??i.?t.?a,? ;•3Fy ?'aS." k.., `? ^'? 4*
?Z.Y.????`?'?A?...,?w?.??.1.. . ?u.aFV?. a?'?wL????f?.`.S`?A. .?Y:_'??'?.-?3f•F`.`i-p??5,.'???'?i;?wfy??'`?.F.???.?,..n ??k?,...i '?'
Friction Method Manning Formula
Solve For Normal Depth
A .+a.7'.1YtC ;. Y"` xb 3 n : r -s ?•? x a+;i „LC`ry` r , ' z •rv.. E
(}?j }pia { 4;. '}.. s h .,..,,.{y"r'''?, ,k??•..'Y.Cf `:t'? }.5? qy? . °,",`'. AWE yfvAi:` vxa-v- iag 3?' : •? '7MWi1`3
7Fw„
I Offli .33 11 ? ?k? 1 4 °2` i.Mr ?: t1k ..?a.3 . _ ?§??gr4 ?t•'#,.:
,,. <a X : .n....«? ...'x?i?^-R.. a....<....a..,f.5.. . ?.. K,.a.,+v. i'.Y. K rrr.'wxvifa:.r. :3+ ` "•s'I
Roughness Coefficient
Channel Slope 0.013
0.0 .013 ft/ft
Diameter 2.OQ ft
Discharge 14.63 ft'/s
Normal Depth 1.50 ft
Flow Area 2.53 ft'
Wetted Perimeter 4.20 ft
Top Width 1.73 ft
Critical Depth 1.38 ft
Percent Full 75.2 %
Critical Slope 0.00622 ft/ft
Velocity 5.77 ft/s
Velocity Head 0.52 ft
Specific Energy 2.02 ft
Froude Number 0.84
Maximum Discharge 17.21 ft'Is
Discharge Full 16.00 ft'/s
Slope Full 0.00418 ft/ft
Flow Type SubCritical
Downstream Depth 0.00 It
Length 0.00 ft
Number Of Steps 0
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 75.21 %
Downstream Velocity Infinity fvs
Upstream Velocity Infinity f fs
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North General Aviation Development Circular Pipe - 3-3
Normal Depth 1.50 ft
Critical Depth 1.38 ft
Channel Slope 0.00500. Wit
Critical Slope 0.00622 ft/ft
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North General Aviation Development Circular Pipe - 5-1
.
•;a"ftr'?1 ? x..
r(e 73y b 1`y. I 4x )(.?l£ r' l `ate'
:'. `9&' -.1
Friction Method Manning Formula
Solve For Normal Depth
rgu?FA7 j?,.rr w ti s? wlat f c
rI t lac r. i x
z?. I'-
"tCCr > 9 ?a €? , 1,21
J [ uS Q } p r .y? ?y? x rt } kyi' 'Y ; td a.?cY.+?t ' i' t*`;ie !+ '
t7:V,i?..:r vS3,.. r.,.!F +t?'EiT.?1 11 c rf__rt .t_4...s_`?.,?i.??..'f'A'£tvli?ti??.:-xKi..':?:???,?.,r:;ika,..
1,
05
Roughness Coefficient 0.013
Channel Slope 0.00500 fuft
Diameter 2.00 ft
Discharge 7.10 fft
• r?:. <.. ..zi<i''<> •,f.x-> .:x ,, »?' a+:?Y.. - t' :;:E1?s J"•" t"',
Y
-«:.„!r,?,.F,s+:x? efit ... .,;r.. °a;:r i
. - '>2
7 - ` av y r ,i` '- 1 ai 4 (
Y. "£".'.55°.I'k..t S rsa 9 a .f?' y k'e ?g T d??is •r' ri'r. a '??F
s;; r: r yiti& a> l Lh7a.a„a nlK15 :nx Ta3sxtt vk ;?d R ti5 sL?fa tsG° s.. ? x _.. ?XS iG i,..'Re?S
Normal Depth 0.93 ft
Flow Area 1.44 fts
Wetted Perimeter 3.01 ft
Top Width 2.00 ft
Critical Depth 0.95 ft
Percent Full 46.7 %
Critical Slope 0.00477 ft/ft
Velocity 4.94 ftis
Velocity Head 0.38 ft
Specific Energy 1.31 ft
Froude Number 1,03
Maximum Discharge 17.21 "s
Discharge Full 16,00 ft-is
Slope Full 0.00099 Rift
Flow Type SuperChtical

Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 46.65 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ftts
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster 108.01.066.001
1011612007 3:49:18 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 2
North General Aviation Development Circular Pipe - 5-1
..'#: r?t• r@? Uar.3 5?s 5? R y t, g 11 pMAIN w3 a s 1S s? ?.rr
Q t 1.+ " ?y?<X 3u51?ik??`??41
is v??v ko?w' ?.?a unY;? 1 acs r k4. '.3? ...?`LZ...X?;fat
Normal Depth 0.93 ft
Critical Depth 0.95 ft
Channel Slope 0.00500 ft/ft
Critical Slope 0.00477 ftift
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster (08.01.066.00)
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North General Aviation Development Circular Pipe - 5-2
'???"!r .f ? i+???. ? "?'•« .t. ;;'` ?Y 'r "'"7•? ?'. ?r} qm'' s?r? 235,-'> ?x ,h rc c{>} r. ,? k?c?.$g'?''?s.
411-1 ,' .`? `.. a.xa?.i?''a?`,•L,'. ` `'> ?x ? z'?"?'' ..J i `:? ? .: ? .?'? . 7? .s a6a `.".ttU< ' ' t a '.
Friction Method Manning Formula
Solve For Normal Depth
>+;'.'''''Tt,.,txys'lrrY?]x7>?Jhtiott'y£'it?p^'?'y+.`R.,?aa3D,j?&{i,v.? ` t..
rat'.-f``'owl ? ... Nv-.I lA: ?t>ia. 3.?..' N 1.?. sw1]9z°?. .?s2S?x.-1 :.'i.i rW?.a .1.4ix.?yi1.. Wkl]J1F. _ ?4:t?L:? '???iIX3.'ji. S?at?.iv ?. ? .:?
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.00 ft
Discharge 7.30 ft'/s
.,?t? .' 3?°'f'.?: ..xt x .:x•i:•a ?? ,,,xp,. Yttx,.c. w xT?y. 4? .xtf; •i` x d?,. -zs•; `°. -n-. ?^.ii
-'Yt z y ? 35;?%+4:? .emu ::?h?'?Waa.^?: =i:'? x ??y. ?i. ,??'•?•;'??x.C,:d?
?liQ?g'?y??? ??#?CL ?` ? ?)? -rn-...x ?? `? .5. •?a.?; °aa !i?!?r«.Y '?+? . ?f" •..
?row?#saw>SS't't?e?`iY.:u?S???z ?YFY.}L?fxiktS?.??lW???a:1t4'3:???.:.'?Ir ,:•i??i4^i,lac . ??F????54. ?i ..?+st: ,lk?.•..':.`:.S?B:et«a, 'x: i-.. !ie?i?:. ... -
Normal Depth 0.95 ft
Flow Area 1.47 ft2
Wetted Perimeter • 3.04 ft
Top Width 2.00 ft
Critical Depth 0.96 ft
Percent Full 47.4 %
Critical Slope 0.00479 ft/ft
Velocity 4.98 fis
Velocity Head 0.38 ft
Specific Energy 1.33 ft
Froude Number 1.02
Maximum Discharge 17.21 fts/s
Discharge Full 16.00 ft'/s
Slope Full 0.00104 Rift
Flow Type SuperCritical
hNiffiff S .? T e?,.n i • a, ?? si' ^ar+. -.? -...? x '£?..- na,. ;-.,?. .?,. .gin .sa
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
g0w
® cli p >
X
?,:u c&
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 47.40 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity fUs
Bentley Systems, Inc. Hassled Methods Solution Center Bentley FfowMaster [08.01.066.001
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North General Aviation Development Circular Pipe - 5-2
-'L;•a:?'K' ?r ?? :; z; ' ] wx?y::x. ; ,•??y? . ;~;1`iS`?'S`?'1'',+i ,.„ t• r,t t;'.i •?,p ii Y •, Y+
F??:ix^rk:a 0?`.`'' ,;,s...., n r B?LR :- ": • 3
Normal Depth
Critical Depth
Channel Slope
Critical Slope
0.95 ft
0.96 ft
0.00500 ft/ft
0.00479 ft/ft
Bentley Systems, Inc. Hassled Methods Solution Center Bentley FlowMaster [08.01.086.00]
1011612007 3:49:26 PM 27 Siemens Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 2 of 2
North General Aviation Development Circular Pipe - 5-3
2.;"' +.y 1Y'§,E. ;v+s: ca*.;; "'y, ` u5? :i .t?s nax`*e sSty'.g:?;> $ 600 1» r' 4 ? '\ 'l?? ?? ?? (l.,'. • ''. .? ? K ': iyt` .. Y :: X3.'•:4.^ : '^? F 1? .s 4 ?W?;•`i rtYF 32 Y7 L 3 JSI? J I:R3.... s s PS' ?19?2:.FAS3? uj [€i._-•E?V S'' ?S ):. i?Y3?i
Friction Method Manning Formula
Solve For Normal Depth
?'E' F;k ::;:-+ '.1rri<ox?..: "yti'.s: y;?o :?,s•Y.Kn'i'uY,'.. ?,F».Yb.F .us1FY?r .n.. ?. ..."S'hy' ?t?m'v;•"M1 •. 'P>ir7"yi:=''? '4ur`;;ks•Y•v??Y?_w:?r'y
y? Aty .,L ? S? k r F af.;
,?t?^., •}l n ?+'?w '?? "'%?.i7er??y d5 `? ?S9 '4ka ? l T k'i l?,'?,?t?isQF y??'$ ?• h, t?.?*.'1? }?, e.i'+7•.a ?'1zk ? ?ti?
??;i,?`???.?s..caa??,.?,?+??.?'?'?at???E???:??...?.'?w?,....?'"??'??r'?ic?N.r'?'tT?X.9?ix?:???`&?:ri?}?..?ti• 3,'?! t?F?"'F:+?,?'?'.???'.,??srsx?t<?'`..,,f5??,<'?
Roughness Coefficient 0.013
Channel Slope 0.00500 fvft
Diameter 2.00 ft
Discharge 10.30 fP/s
t "'?"s'. '•'?f?:=?S:':7+ ' i?:" S: :3.3. ?E'si?."" xy. `?' , "s" n. e:, ((<..cx!: -r .',,,,sy,Xfi..,.. ? ?.? ?+ 3,?>vy?-qr.
`.?' f?'-t :?. ?A! ,? . eA?'4` ' 3.?' R C9•"1+. ?yy??': ` ? 1
{FC y` '%?.,wn,??4'a?.y:: D? ? •i k .?,,,?,?y,?ie ;,?`w'?.' ..'` ?. fa . ?' ,d?i?? ,?e ?i • ?`,'"(-i;f?ih. ° ? p"??,.?fyF?y,_.
X?'??., '?i.?to.'?W_.i ???. «•???i?3 .,N r: ._?ESA :F.r.???S;a+::,.prk1>?.+j.`??'~f'???M?d.-'?.,??.•Stil?':`?s " ?x:.?3i??z? .?,K.3..:?3aee?xs ?f _.s? M???'ke3?2??.,.?
Normal Depth 1.17 ft
Flow Area 1.90 fF
Wetted Perimeter 3-48 ft
Top Width 1.97 ft
Critical Depth 1.15 ft
Percent Full 58.4 %
Critical Slope 0.00525 ftlft
Velocity 5.41 ftls
Velocity Head 0.45 ft
Specific Energy 1.62 ft
Froude Number 0.97
Maximum Discharge 17.21 ft'/s
Discharge Full 16.00 ft'/s
Slope Full 0.00207 ft/ft
Flow Type SubCritical

?St +A
•
ss
.
?'
ffl
0 11
'
s.
.,
' ???
.
4
i
w ii s
s
d?
?
`
1 is ..
Y EY ;U!(k
.. i i
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
?
ftl x
a' 1?'
`.
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 58.38 %.
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.001
1011612007 3:49:35 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203.756.1666 Page 1 of 2
North General Aviation Development Circular Pipe - 5-3
f?'f^^T,??}j"'T+?.:?T?,rk`?F'?,'`?;;??'?;x,:' .?'•?• S?^• ?`'??.?,?}ti,'sYac'?S;?nk?• ?..r .???.. ;`.,?,•. 5 = .,......_.•;.. ?i
B<l?"w.'?r'LI.eSS°:?
Normal Depth 1.17 ft
Critical Depth 1.15 ft
Channel Slope 0.00500 fUft
Critical Slope 0.00525 Rift
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster 108.01.066.001
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North General Aviation Development Circular Pipe - 5-4
3. ?v,?x;?v!!;rrx." 'Yj ?$'v'Y. .. ?',I`?_ .:j?:'??yye. ??. .?8 ?•. ;?,.. •-,i ?:I;' ,? ?`l?'}°; z??'?c cS$?i -"?," ..fij?y"'? .s.. .;
j? ?{i ?.??_ .'sY• '+' iii F''t t3 ?? _ ? `
w .?l,et .x..a....??i. v ? .33L,.o-. ? °}Su.#?'i. s?l???` • ate, ar?•. ?4?y?rx??haF . eY-°.s'.".,"..?.'S?.a• + :..:?.:'t?,t?' } ?$'•_'?n??
If
Friction Method Manning Formula
Solve For Normal Depth
Roughness Coefficient 0.013
Channel Slope 0.00500 fUft
Diameter 2.00 ft
Discharge 6.89 ft'/s
lttl?]'4u.??i."Y.hKi??l.'t ???.v'aY Te????.`UP.w1? ...?.._ ?5.1`.^???L???if^,..2?y.J?nL??'?'??@?F35°IF aG?ne, ,?.?j'n?y ?: kaCC'6?F?4!:5?1.,?. ?.'•W
Normal Depth 0.92 ft
Flow Area 1.41 ftz
Wetted Perimeter 2.98 ft
Top Width 1.99 ft
Critical Depth 0.93 ft
Percent Full 45.9 %
Critical Slope 0.00474 ft/ft
Velocity 4.90 ft/s
Velocity Head 0.37 ft
Specific Energy 1.29 ft
Froude Number 1.03
Maximum Discharge 17.21 Wis
Discharge Full 16.00 fN/s
Slope Full 0.00093 ft/ft
Flow Type SuperCritical
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0

Upstream Depth 0.00 ft
Profile Description
Profife Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 45.87 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity fits
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaater 108.01.066.001
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North General Aviation Development Circular Pipe - 5-4
y%.:G7 'k. .a ., »S:, ?.. ')S !1? ' ?: Y? h•„:.. ,. a ; .e,....:.?,y ??? ? ? - : E'-?•? (??+, Nn .fib:,.:,.. •,.rc? y.? ?,:?m
f µt:. 1 der G 4 X2 ?; 7 3? ?µ {t?1
V ts??,.???'c
INNSM ? l .':..• l?in1L ? ":e,3Slpv?fmziia5?f9,?... s:R:'fix :efa34:!4rv.?iiCa` ,: r!tel*s4'.9F'k1'*.z+ ..ra-.n •BSesr,,.,zxcx ,...mss i 3YS.'?6•
Normal Depth 0.92 ft
Critical Depth 0.93 It
Channel Slope 0.00500 ft/ft
Critical Slope 0.00474 fUft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
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North General Aviation Development Circular Pipe - 5-5
rt. •. tNre .. _? ,?.. - g' sFa?` ? `fie ?;h.'",?".%w.`
?S'M •?`!'?i`?y.? `Y , r,? ? i* ?`{a?? ? ? . ? ?4{iY iv3
11'.' SINEW NMI
Friction Method Manning Formula
Solve For Normal Depth
'Q*" "'ra`' .i.:£t3k+??;;ai;F"'•:'s)','*::?;??h:?t,??t;4 .sti;.?;. ;ya: ,:su. ???.,,:_$'?.. ?... ?°es' .'F _"''?,„y`. '?F'"6 Y: 4?9'"' °'ot..;' ?t?''?,a,'
j ? ix's
insk??c?xi}.iY usgt?ahx ?z ?? x S £ r tx•?n Meg s
T:; R;r s.. t,?..i,??# ). rt??,s.€uZi i'? lhwka i,".^Q::?3:5:,S a.,.. $«:.p•k:: li.•`Tk?ta.
Roughness Coefficient 0.013
Channel Slope 0.00500 fult
Diameter 3.00 ft
Discharge 25.36 fN/s
w*;?i. .?Z'`;??;,n;;?'?u'.'-"'^-?e:?:;ei,.-^;:tj''ct?x't ? 'P Y ?'. :'v^' °'arnr?...;?. ?? ?.? W...t. ptF: o•v°} i' ,x?w<cu•.,:
Normal Depth 1.57 ft
Flow Area 3.73 ft'
Wetted Perimeter 4.64 ft
Top Width 3.00 ft
Critical Depth 1.63 ft
Percent Full 52.2 %
Critical Slope 0.00443 ft/ft
Velocity 6.79 ft/s
Velocity Head 0.72 It
Specific Energy 2.28 ft
Froude Number 1.07
Maximum Discharge 50.73 ft'/s
Discharge Full 47.16 ft'Is
Slope Full 0.00145 Wit
Flow Type SuperCritical g 21,
IN.
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
Gam. ^, R , ?? rt SG?? .??'e ?t?? .. ..? 's ???1,?3 S?YF m ? , i +3[,?.,?yy r ? •• M1" j ??.K?C . ? ? ..
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 52.21 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Hasstad Methods Solution Center Bentley FlowMaster [08.01.066.001
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North General Aviation Development Circular Pipe - 5-5
s,. x _
` tl "!r?µ '1 S ?'?r. l3ixYa ?} y ..? k ::t- A ?": a
??1 , . k .c
E f? ti'3 TEL '4000a. 3} i=
Normal Depth
Critical Depth
Channel Slope
Critical Slope
1.57 ft
1.63 ft
0.00500 Wit
0.00443 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley PlowMaster [08.01.066.001
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North General Aviation Development Barrel 1
?`+Yry?S?. ?:.t'?]`< so ..? •Y Sy?}..??1"i?!?,zs. _ , .?, xii:^iy;vr. : 5 ?,??`.'?y`?3:r+'
??t? F Lrr ,i 3 r(°ly°? ...i' s'TtXfn
i 9 ,CS A M at:?'iF&7w. _SP .s >
Friction Method Manning Formula
Solve For Normal Depth
.? ,,,. ..??•; .?'?' -.';? ?st ?,r »?.....,?.., ?,, .:?eH. ?;.-,y... ..z? •??•:os-.3N.T??????i. x?> '?{:>w;?,:Krr;?..??:: ?^?yyi-'i?`?
"it?j;$
11 ,?+t ?r ; +??TS' L7Lk 3•..r- a ?. 'rsfi? z:' .?'c,,,?,fRi < '' 1 y,, 3,Y
1 ' 4? +? k?r i :? s ?'iJ`ta fS ?+??'u?jaS ? {5?`^?S ^a 7 ?s4?wsZ gym,; t Y.,°,?)`k ,fig .z*•.:n?i???K:. ?v a' ? r`. ,r?'7Su?.'.v Li ??'z:.d':??a 1..???..'?k??;;^
I.n,"}
>....:
Roughness Coefficient 0.013
Channel Slope 0.02300 ft/ft
Diameter 3.00 ft
Discharge 11.90 fees
?c. , x• , ?W ;?S. µ?3'«.±n -;`in??: ;'syr B-. .. .NH« ..:?``?:`'Fis` y+ ?' ..a •U ??,ir,+?:.° _? •,?1
,?. t ? y7 t"!t = ? "' ?,• f?'"` a Y..o-,' ?
k, ? Y
.c
i.d...kt<:Stvw. Rk x:+: r•• .[ "aFy Rd" ?.xX?" c 0 ??
ag
Normal Depth 0.69 ft
Flow Area 1.24 ft2
Wetted Perimeter 3.01 ft
Top Width 2.53 ft
Critical Depth 1.10 ft
Percent Full 23.2 %
Critical Slope 0.00393 ft/ft
Velocity 9.59 ftfs
Velocity Head 1.43 ft
Specific Energy 2.13 ft
Froude Number 2.42
Maximum Discharge 108.81 ft3ts
Discharge Full 101.15 WIs
Slope Full 0.00032 ft/ft
Flow Type SuperCritical
a•Y• aca
F? ???? .:' ?n(+'9??. .' ?..y-/ k?xrl.... ... [LA:•.C ... ?.A ?'??Y?R!gpvirs"`?-'.. fix. 2a '.?32. ?. iu; < w IY '
`1tf@tl M2..A Y 'f.??. .. YVI Wit.
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0

Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 23.16 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ftfs
Bentley Systems, Inc. Haestad Methods Solution Center Bentley f iowMaster 108.01.066.001
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North General Aviation Development Barrel 1
{ tx,? z :.tip rt "roP;i to Y y?> a nvxk^ Z 7yg x??v P t' a ea.?-?
L.>r'?,,.>?"FJ..A?`:°.'u4:? ?1?"3.x;1,;ir4?. ;t.?'`? 1.si .a??•,...«.? {.. .x' ri1
Normal Depth 0.69 ft
Critical Depth 1.10 ft
Channel Slope 0.02300 fVft
Critical Slope 0.00393 ftlft
Bentley Systems, Inc. Hassled Methods Solution Center Bentley FlowMaster (08.01.066.00]
1011612007 3:50:08 PM 27 $lemons Company Drive Suite 200 W Watertown, CT 06796 USA [phone] Page 2 of 2
North General Aviation Development Circular Pipe - 8-1
k?•?oayu?gJ?: •?[a. - j .?: fx' x. ?;y' ?,3?.'..;,r cr ?.;a ,;?sf .?.,+???.".?." _: •.y?g?: c.a;,N-r< ??L?>ra? .. G4.
Friction Method Manning Formula
Solve For Normal Depth
. t '? ...:.., .. -...., . ?:..'Ea ..fie ? -. ...g:. rv .:.?:., , :t?( .,;s?z,..,,F, : es• ;fv ' El• ec .'?'St •z;K? . ys a ?:?j. ,?Z _ . •Y . tt6.g . r?^x¢a•..,?.Ex:??.
v . N +!S ? ? ?, rt 9 ? ? t z?rt`?• 4i JiE' "t',.. r ? i'a.1' ? ?rk ?? a c ?•' r?? ?{''• ?' 'F v:, a ,? 4?
n?.??•e::_..?cx?a. ? ?ii.?..`?zs?.>.?f.? ? ?a.«.h. E.:.a.:.:?`?z?..?.?<e1E?. Sas;lf?..»..,.. aY"? .s ?'t :. Ear s*??< a. ?.?E .:r.... E,,._ ,EU..: >w?E?. ?,. «x.'?.x
Roughness Coefficient 0.013
Channel Slope 0.00600 ft/ft
Diameter 200 ft
Discharge 7.10 fP/s
MUMMIES r?g ?'Y:4+'''t'? :.`: ?:? - ',.?-,?s: ??'i`If ?nf,? n>n:n??$E3£.?i''...5' '•?' ?;;,4j7?, .s i ?,R,,.. ?"?-'r'E*'.5)? ..•.}? K???'i??{'?f Y?. r?,'?w.i. .? 1. :{. ? e1$ LYrk,fss ? fi g:.....wrr1?S.:..? S:.i .E,aw:,•r.
Normal Depth 0.93 ft
Flow Area 1.44 ft2
Wetted Perimeter 3.01 ft
Top Width 2.00 ft
Critical Depth 0.96 ft
Percent Full 46.7 %
Critical Slope 0.00477 ft/ft
Velocity 4.94 ft/s
Velocity Head 0.38 ft
Specific Energy 1.31 ft
Froude Number 1.03
Maximum Discharge 17.21 ft'/s
Discharge Full 16.00 ft'/s
Slope Full 0.00099 ft/ft
Flow Type Supercritical
;p. r,?K'? 'd?: Yr ?' •q,?''y'x` !r. ,f7.q... a,?t ?ifCx x7$.???+. sc . ". 'R'iq a y. '?'? 4. r . x , ...
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
}} „kiZE d ° `? w r..k^'. " ,... :•1 sr?S .lf'" . •1d£ -q w'.
Upstream Depth 0.00 It
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 46.66 %
Downstream Velocity Infinity fis
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.001
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North General Aviation Development Circular Pipe - 8-1
IN .1z'p?`S? ...v.
`..1':3T' g:7' . ' ,?yt:Bill, F Willi ?? t:.,;.."`+?s
RA
?{/. ?r?? h , A , Lys } # : ` ?'y? .< , s ?? .• 1 A
AV'.41?h ?'Sk N. { sK.:4. CK+mm '? )a RIN Yl. ' .M .?. i3it.P ..
Normal Depth 0.93 It
Critical Depth 0.95 It
Channel Slope 0.00500 ft/ft
Critical Slope 0.00477 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
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North General Aviation Development Circular Pipe - 8-2 N i x . x °'xzF : ,. M • , ., ? ? v.:as .fin>IS, N
ss stj?? x rr ? ? ? +T ks a
;;Yx ":,u+ . .:. ?
r " ,. w?.i.. ....r ..t? ?i?NB ..-h• .:.Q•, - ...Y + .Y's .., ord..'. t;
Friction Method Manning Formula
Solve For Normal Depth
2'?.??"*?'e ?Y??''' ?..??r? ..e??.? t s?;1'"'r??ya 5 si?,s?j?? 5 3i?,v???'Y?a". ?`?????•? `'H'?yL?'1.n {¢f?.a''? ft 4'
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 1.50 ft
Discharge 1.04 ft'/s
Normal Depth 0.38 ft
Flow Area 0.35 ft2
Wetted Perimeter 1.58 ft
Top Width 1.30 It
Critical Depth 0.38 ft
Percent Full 25.3 %
Critical Slope 0.00493 fUft
Velocity 2.96 fUS
Velocity Head 0.14 ft
Specific Energy 0.52 ft
Froude Number 1.01
Maximum Discharge 7.99 ft'is
Discharge Full 7.43 fris,
Slope Full 0.00010 fift
Flow Type SuperCritical
INS _ ,?'? . ? .a • at q,; ? , +.. :W Wfb•_?i-.`?`?{?n?`?Ir??'?°si.
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
I
??t.K V ??c ?.
i m7??i'?.??S?Mwd? ?'? .. sly'
'f6Qd7.•Xf7a#kJNi73b.S.4S"?7?i'Srifa^R ''r'{•R ?f ¢;gs
R.Sw1°t?l?,tp .. ,. ,C?rF? ',,,7'?F ? y'?.
Y '' i'U,x??? w•
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 25.28 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity fUs

Bentley Systems, Inc. Hassled Methods Solution Center Bentley FlowMaster 108.01.066.001
1011612007 3:50:33 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA +1.203-756-1666 Page 1 of 2
North General Aviation Development Circular Pipe - 8-2
Normal Depth
Critical Depth
Channel Slope
Critical Slope
0.38 ft
0.38 ft
0.00500 Wit
0.00493 Wit
Bentley Systems, Inc. Naestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
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North General Aviation Development Circular Pipe - 8-3
u ,..•.+?•. .??,,:.?,•l`1.,, w:ay;,+>. ,?r'da,:$rfµ'; d'3 :<•..1,c:'Xa,r.,m?tt T•r? y. -g•rc;' , r:. :t^,.,. m>.•;
.. rr x' i?aa. hr ? .. 1M
s... 3 t?•s.YTS .itt . ?.z `e.. T `?`k
3'. . MUMAY, J
Friction Method Manning Formula
Solve For Normal Depth
-rcx:.• am' - .?.c. «a ay,. ^sx ::cvt,.e :u:ttF3lnisn;;ki ''K?•.?.iYcr?. i; "?`vifiy"; .?...,?%•r.;y-^scc?7!':<' <ii3C•T'a 5'?'
f(?5][¢
k?i.S'?".i3_?:z::'.
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.00 ft
Discharge 10.43 ft'/s
Q `ti3i YC; ?:Yq. y•>?,y;, ,r'fM1 ?{+ . a rgn••:3.:«^.s:' S ^i.J ?`a^.^"•R'r :Y"?1P'?Af," •' °h. ?`:
61r?-.r{a', ????+ i!s?' H.aY,C+ir..3$ _t?i.?Ld..<??k•^::.:? ? $? `+? y< ?f ??.Y. a??jj E'* •< •.??' "??+S??i - iN?R s
5??? ?ta?3r.'33:;i.? 7 ?i,Fx?vw iG?3a. ?bart+<?l a. ^??•Y'.Y? ar+Y •y. 8z.16.i" "?e.,? d TO:F?.!:._ .?w.
Normal Depth 1.18 ft
Flow Area 1.92 ft'
Wetted Perimeter 3.50 ft
Top Width 1.97 ft
Critical Depth 1.16 It
Percent Full 58.9 %
Critical Slope 0.00528 ft/ft
Velocity 5.42 ft/s
Velocity Head 0.46 ft
Specific Energy 1.63 ft
Froude Number - 0.97
Maximum Discharge 17.21 ft'/s
Discharge Full 16.00 ft'/s
Slope Full 0.00213 ft/ft
Flow Type SubCritical
, ON MISSION MINIM
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
OEM, is°p`< 4 l°tt .2 - ?kl t??.s"''.. ur' . s ?+.s?l? .}Y?'i4•l:*.?a?' '.4...,yx i .
;5 >. '".'?r .? "?' sip . ` ?'3':3on"riit"`` . <•:}'}:
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 58.85 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity fVs.
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [06.01.086.00]
1011612007 3:50:41 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 2
North General Aviation Development Circular Pipe - 8-3
tr x ? ? ? ,i I'M- •ac , J!f"sn" v -?:'35` ?" u ? ; .€ kx
C ,
:ll lffl-.ti?
Normal Depth 1.18 ft
Critical Depth 1.18 ft
Channel Slope 0.00500 Wit
Critical Slope 0.00528 fttft
Bentley Systems, Inc. Hassled Methods Solution Center Bentley FlowMaster [08.01.066.001
1011612007 3:50:41 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06705 USA [phone] Page 2 of 2
North General Aviation Development Circular Pipe - 8-4
Friction Method
Solve For
Manning Formula
Normal Depth
fir}. .2'.? < 7 iYf. '";?: r.: _ . SF'. wrnaerE „-µ..y?f: ? ?i.w?. > :•i?: ..+rnyy •. w•??..?iY.• yw .?S! ? aa?? ya`iv,•?'4?i: ?r?. 4"a"?Kr2y.,ti?.z? •?'
}([?1?x. (?,?,{'.nl't.e..,.th +i,. '???Y ? .{"??s?N^?593i ????y?,,3''}?y?i3???st_i.. ??"??`?.,.x`?.1? ,?,?.??> e.<'. ?1e r 4yntiTT?,: ?...:e•r?,. ?y-(. ..? .?rQ?.,,. ?di>????:
>"s.?'
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.00 ft
Discharge 12.55 fP/s
Normal Depth
Flow Area
Wetted Perimeter
Top Width
Critical Depth
Percent Full
Critical Slope
Velocity
Velocity Head
Specific Energy
Froude Number
Maximum Discharge
Discharge Full
Slope Full
Flow Type
Downstream Depth
Length
Number Of Steps
Upstream Depth
Profile Description
Profile Headloss
Average End Depth Over Rise
Normal Depth Over Rise
Downstream Velocity
Upstream Velocity
SubCritical
1.33 ft
2.23 ft'
3.82 ft
1.89 ft
1.27 ft
66.7 %
0.00570 fttft
5.64 ft/s
0.49 ft
1.83 ft
0.91
17.21 fP/s
16.00 ft'/s
0.00308 ft/ft
0.00 ft
0.00 ft
0
0.00 ft
0.00 ft
0.00 %
66.71 %
Infinity fUs
Infinity ftfs
Bentley Systems, Inc. Hasslad Methods Solution Canter Bentley FlowMaster 108.09.066.001
10!1612007 3:50:56 PM 27 Slemone Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 2
North General Aviation Development Circular Pipe - 8-4
Normal Depth 1.33 ft
Critical Depth 1.27 ft
Channel Slope 0.00500 fl/ft
Critical Slope 0.00570 fUft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster (08.01.066.00]
1011612007 3:50:56 PM 27 $lemons Company Drive Suite 200 W Watertown, CT 06705 USA [phone] Page 2 of 2
North General Aviation Development Circular Pipe - 8-5
Friction Method Manning Formula
Solve For Normal Depth
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.50 ft
Discharge 17.67 ft'/s

Normal Depth 1.41 ft
Flow Area 2.85 ftz
Wetted Perimeter 4.25 ft
Top Width 2.48 ft
Critical Depth 1.42 ft
Percent Full 56.4 %
Critical Slope 0.00484 ft/ft
Velocity 6.20 ft/s,
Velocity Head 0.60 ft
Specific Energy 2.01 ft
Froude Number 1.02
Maximum Discharge 31.20 fP/s
Discharge Full 29.00 ft'/s
Slope Full 0.00186 fUft
Flow Type SuperCritical

Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
?Y' : ?:? }; ([.. x??e'?s '<r? ? °? >°i£ni,)? . ??.;'.;?',~?? ?r
Y ,3i.c1° a?" tti M S.?w'?????=°+?,?• u s ?'4'.....- , ?.
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 56.37 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ftfs
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.001
1011612007 3:51.07 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 2
North General Aviation Development Circular Pipe - 8-5
i e t
'.,t?s,N?
Normal Depth
Critical Depth
Channel Slope
Critical Slope
1.41 ft
1.42 ft
0.00500 Wit
0.00484 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster 108.01.086.001
1011612007 3:51:07 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 116795 USA [phone] Page 2 of 2
North General Aviation Development Circular Pipe - 8-6
Friction Method
Solve For
Manning Formula
Normal Depth
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.50 ft
Discharge 18.25 fP/s

Normal Depth
Flow Area
Wetted Perimeter
Top Width
Critical Depth
Percent Full
Critical Slope
Velocity
Velocity Head
Specific Energy
Froude Number
Maximum Discharge
Discharge Full
Slope Full
Flow Type
Downstream Depth
Length
Number Of Steps
Upstream Depth
Profile Description
Profile Headloss
Average End Depth Over Rise
Normal Depth Over Rise
Downstream Velocity
Upstream Velocity
SuperCritical
1.44 it
2.92 ft'
4.30 ft
2.47 ft
1.45 ft
57.5 %
0.00490 ft/ft
6.24 fus
0.61 ft
2.04 ft
1.01
31.20 fP/s
29.00 ft-/s
0:00198 ft/ft
0.00 ft
0.00 ft
0
0.00 ft
0.00 ft
0.00 %
57.53 %
Infinity ft/s
Infinity ft/s
Bentley Systems, Inc. Hassled Methods Solution Center Bentley FlowMaster 108.01.066.001
1011612007 3:51:16 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 2
North General Aviation Development Circular Pipe - 8-6
yy...1,10: :i '<, %f. A 'A,' ,-".f.?acgs `>.K T .w
"
'Ivi ' a m?g?}.it?y#
??. ??p j ???•_r`,t?.?:????td???`nr. ., ..,f.??''?'X?S
i. 1. .a..ri.S.,bS. s
Normal Depth 1.44 ft
Critical Depth 1.45 ft
Channel Slope 0.00500 ft/ft
Critical Slope 0.00490 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
1011612007 3:51:16 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 2 of 2
North General Aviation Development Circular Pipe - 8-7
Friction Method Manning Formula
Solve For Normal Depth
y `1,!?'? ';+e a 'Rf ?!aT''?»E(,Aare's -. f?`Pk ?4_•?M?? ?•So('.?r?t> A
I u a [$? n?3'?' -'' ¢K < ? s A v § 3 5 ?)x? fi i ?t
?t.:a?:r-Gi. ?kr?Y NOR,
.:.>,
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 1.50 ft
Discharge 2.92 ft'/s
Normal Depth 0.65 ft
Flow Area 0.74 ft'
Wetted Perimeter 2.16 ft
Top Width 1.49 ft
Critical Depth 0.65 ft
Percent Full 43.6 %
Critical Slope 0.00511 ft/ft
Velocity 3.95 ft/s
Velocity Head 0.24 ft
Specific Energy 0.90 It
Froude Number 0.99
Maximum Discharge 7.99 fees
Discharge Full 7.43 ft'/s
Slope Full 0.00077 ft/ft
Flow Type SubCritical
?. ? ?:. . T .. tn' s% ..gym ,++?y? ?? .+» - vx may,:' ..? • .c' .? <<,, Y•
I:.' 1 . : t .
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 43.57 %
Downstream Velocity Infinity fds
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley F1owMaster [06.01.066.00)
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North General Aviation Development Circular Pipe - 8-7
•:_ : •c=•s:?'•• ? ?^ ?'r 'trr?..:«;.. .a,.?s?•.,.•. +:? •+? :,?.r;=:>•; :? . ?. .-•,m-< ,. r,•. - ? • as .?. „ ?s ? ,,;,,
r,.+,. ??? re °??.x?:t?y3?.?:??R.i?'?b?:?>3-. i?? 5?., ..? f?fc` Y' .., ..3>K? F..'?`S?i.?\2?`'• ?i:3?+t'witr?.is???i?'•'in4
Normal Depth
Critical Depth
Channel Slope
Critical Slope
10N612007 3:51:26 PM
0.66 It
0.65 It
0.00500 ft/ft
0.00511 fury
Bentley Systems, Inc. Haestad Methods Solution Center Bentley PlowMaster (08.01.066.00]
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North General Aviation Development Circular Pipe - 8-8
f45:•.WwLxaS:G.wu'n??i?T.1fSk t a, •?S .ib.A;.}l? p[# 3i'J???tF.6 ?ikili."+?k?i
Friction Method Manning Formula
Solve For Normal Depth
''ru" W ? :?53l. ::?;:%°'a.Y-" a,i??i?`"',`s'.t'fi••?{a:.,,`??si:Y:'.><<?.'?' ?i•.-. ?: „3'?,•?y%`?"' :rr;? ' ?`?t:,s"yY?i.s?x ems. „+r ,4n.?. ;aq ,o:4?f?Liy' --r?::%i?
{ f?} F?y?' ??e,? .3'ro `?.,t r6. ? ? ff'( ?¢""!. oi?b' ? i 7"'r y3?ejr, .?' ???S '+i ?#• s?Fx•S ;•Fn` f
?i??17?'??,?..?.?????"? 0•i s?zx?'t•?" '????'!'m?????l?'!SRs ?f?'i ai?z????? a?"?S3Tf fns' ? *7?<° iG? •8"
t>ri3. x..? z>.;e,?_IY ....?. ..k«....<.t. •'?.. -;ft .x... .s. :?•. a3?.. .. k. ?•r?Se•.> ..'?.... Ana ros x?. ?i`b...n. ..zl...Y?...??',tr. .ot<. s..`"r.4....fi?..'. .??:5:...... ' .u«^.3
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.50 ft
Discharge 21.05 ft'/s
'"-;?' Vi h ?:;.r;y ?..:?;:x:yx?i. ?•i rk,?. +»a:z>• '?i;.L•x::«;.sq: •ax?.• ?Y' '?. ??•a»t :?" ':i:' -?""
4l'lha}!4 'f? F3p t?+t?t`? Qiu"i? t' to `.. St-,+e b 1 r
f?
?te??? ?r"'tra s3y'+`! £•'???'t???????rr:ki??t?a«?`?' ?; .n•? . ??????• , `? 1t??R?.r??. ?.• F!' ,??t''i?,
>,,;se!e!, d<..., f a, u>.,vs,rt?J?i$; .it;\ ! r, oo.t' T'?t "..3•zs`•-?:L?..'i .as?x'? ...LS.,: r . tier„
Normal Depth 1.58 ft
Flow Area 3.27 ft'
Wetted Perimeter 4.59 ft
Top Width 2.41 ft
Critical Depth 1.56 ft
Percent Full 63.2 %
Critical Slope 0.00519 Wft
Velocity 6.44 ft/s
Velocity Head 0.64 ft
Specific Energy 2.22 ft
Froude Number 0.98
Maximum Discharge 31.20 ft'/s
Discharge Full 29.00 ftis
Slope Full 0.00263 ftfft
Flow Type SubCritical
>? .. ??•. ;u< ?' <?°?i,?4yF .r:;*•s?i 3. r,.. ..tip ,?
' Of ?t?4+ASti:':1? 1? Ef ,Q.. w ?t-
H
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
I; • r,,?.r?y . d ..,... :9ti•%? :'*_}".. +Rt "??;# ? ' a''} •. 1r ? ' x .'-? y " $1• ' ; '•?C'?t3', '' ' ?.
tNSe '(''y ^$i r. «:A`.K K5a ?G[9.3 ?:r Ai: fi.«e3fi. 1 s!??'f'
Upstream Depth 0.00 ft
Profile Description
Profile Headtoss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 63.17 %
Downstream Velocity Infinity ftfs
Upstream Velocity Infinity ft /s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.001
1011612007 3:51:35 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1.203-755.1666 Page 1 of 2
North General Aviation Development Circular Ripe - 8-8
..,.x,., fc.,,[;j. )t,.y1rY::':/,i's`itr'?'xb' K. . is?r, ,a?: 5il;?':'"a` i.sa •-3? *'ir???n?:,;s?.-r ;af .r ?,+s i''$:,'. 2t .;'+x':?V,{A. Q:?Y!tt. i X'?FS. - - a>s' pyµ n
{,? ±"wrf.M i-,.?- l:a NZ, IS OM
3.«.?afaSaQ&ii°.?i?l?rl'^>?'xcY.?:,:a-ytx'iaG. $..7.£.+l- 3til,r?.?'$$e °x.ii7 n.?'".40, ? .:..?. : .
Normal Depth 1.58 ft
Critical Depth 1.56 ft
Channel Slope 0.00500 ftlft
Critical Slope 0.00519 Wit
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster (08.01.066.00]
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North General Aviation Development Circular Pipe - 8-9
i:z:? ? -n• .?, ? '?«?'pa. ?y??j`:a raw .s;w„?r:? is ?'rn,:ti%?;'4`y ;?'1•±??,: +,m' ? ,?,.s;:: r'. :r< ?,?,;•.. ?,?:v,. e.
Friction Method Manning Formula
Solve For Normal Depth
I" ?; ? a ?? X ?aY .s s,i SY ? -xt {''j' v `' x^?` o . t?.,tX '.t ?j ?ta,•li ?• ?' 4A`?s ?i4 ?M s ?°?"k ?° 3°? qtr i:v r x 5 ? a ?Y? . ?4 r`n.. o ++. 4:ap%°:a
f?` {{ - d.,kx- 'S'-vfs3`{s'Y s??sr7 tv:--" sfi i ;r"'3?t7t n ??jSf'i s p
kl!.!?F;k??rt
?.. "8 At _z z._.Y:ti .. ..:.??'.St... s .ly.:x.•.., ?s<#>,„,l:,l..ad.3,.>s_???..•.7?'b?;.It: ?r.>?+.?>:: x..??.Y... - te..?k?'?at'6.s'.esru;?zaSte._S)xae. bF• ';':? i Y
Roughness Coefficient 0.013
Channel Slope 0.00500 Rift
Diameter 2.50 ft
Discharge 22.75 ft3/s
.:?:.s`l.. ,1.. ;k.: e?:t `'? ? ?} 'Y•" ::'??., sF? .,: {!-;sx,;`k;'r}..s.? Y« '3*s??t'Y•.•a '.r,.'+::,.;•:r:'?.,.-.,; ^' ;:?.• .:,?
?i(?' i, ?i???t?..?x r?si? y+? ?k: `?? l;+° s??37 ??.? - :4?-`''?f' a"h??L??i ?' toF?`• T +? o,s?F ?,x `'???EYi''y ?'? .
z,?six:?• ?.`.a?<?s;a,r..XF.. ??'' M???`?:ni"sF,?'st??3°.??`.;t,r?..??:.'.?Y?`£?'???,r?..?"!?r'.?e;' t:???'.>? ???;i??:U?'.?" •s *}a'S?,tifi?L?t ... ??
Normal Depth 1.67 ft
Flow Area 148 ft2
Wetted Perimeter 4.78 ft
Top Width 2.36 ft
Critical Depth 1.62 ft
Percent Full 66.7 %
Critical Slope 0.00540 ft/ft
Velocity 6.54 ft/s
Velocity Head 0.66 ft
Specific Energy 2.33 ft
Froude Number 0.95
Maximum Discharge 31.20 ft'/s
Discharge Full 29.00 ft'/s
Slope Full 0.00308 ft(ft
Flow Type SubCritical
?..
Sa:ra?:.? _ ??:>.i,.???ra>.Sl. ??',rsl?8*??i?>?+??:?i.?s''sf''•'?,`??????r??::.......>Ara?.'t?`?.. ? ??ifi?i??????... .z;i.
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0

Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 66.70 %
Downstream Velocity Infinity ftts
Upstream Velocity Infinity ft/s

Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.086.001
10M612007 3:51:43 PM 27 Sismons Company Drive Suite 200 W Watertown, CT 06795 USA [phone]$6 Page 1 of 2
North General Aviation Development Circular Pipe - 8-9
f - Y ?? . / ?t a+;. _ ?#"?e-{:•y ??? j f. gj q< a y , _- %TS •oP•c r;?. ? x`V'?? l...a Xr.,^,??ex?y-? t-r x. 'uF ? ,' ."? ri",..
lVil ? J} ?1 ?"` } ;C a F?i ? t s: ? t/J? f'? t §?a- ,.f:;,?n 3 .a ?,T a`'. 5 . Wt, A, x •5,??
:t .t a y",",9}` L`t?fiIFt??,',` q•?r, ,k rF )QQ x4?1tir tib? ?s?Y.?v rt t`,,?{???.,,5$`j',}Y' ?v'• ! S,
F? 704.S?,:-Sv
Normal Depth 1.67 ft
Critical Depth 1.62 it
Channel Slope 0.00500 fUft
Critical Slope 0.00540 fUft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
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North General Aviation Development Circular Pipe - 8-10
r r' c, r ti x - s7
flce T S f 3e3s4y f`,' = %!,? g F r nt r Zya•:g• gfl?u<.'s:z
?irY?ry„
.t' ?'.SM?t'u ;.°? a? n S ?ti9x ?tmr t1 KEEP
OS"`t t..:.s
R`F.?L^.LV\?.vv'3 K.a93an! .a3.VT Sr
Friction Method Manning Formula
Solve For Normal Depth
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.50 ft
Discharge 24.93 ft'/s
Normal Depth 1.79 ft
Flow Area 3.75 ft2
Wetted Perimeter 5.04 ft
Top Width 2.26 ft
Critical Depth 1.70 ft
Percent Full 71.4 %
Critical Slope 0.00568 ft/ft
Velocity 6.64 ft/s
Velocity Head 0.69 ft
Specific Energy 2.47 ft
Froude Number 0.91
Maximum Discharge 31.20 "s
Discharge Full 29.00 ft'!s
Slope Full 0.00369 ft/ft
Flow Type SubCritical
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
f ?i ?r'r•, •?>v ;:rr?; ?.i.....r?s:?. ??:?a^= .??s,?.?; fie-.?>•??;.,??? ,•-?;,?r. .•k.?.., r?3, ?: ?.n.
??? Q ??P???.`F3 'sw ? ?: z ?` w w ?. •n: ?gL. ?y?Jt,C ? !3 "? ?S ! ?
fit'4-?w s a..o La A9 ?, rev a Fi. 4'f:
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 It
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 71.45 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity f is
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FiowMaster 106.01.066.001
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North General Aviation Development Circular Pipe - 8-10
?. K:?c.. ,.?, ?, ., ? ?r, r r r-• ea Y '? r# ? r, "'i- '? -?? '? ti.-. '?.,s:?!.????`'??,?_{??'Q?N?'?.??.?3?''#`.?f??i<a?`??'?R?°i?`_
?:i?.. W, ?4. r .a. 4+'k.cY: 3l??' L_'?'t cm?.c...:, ` v.?. w :??. '3.:?31,;•3?:YSr.''?x ...zw.. ? •F '9e:t:...?t?'.??
Normal Depth 1.79 ft
Critical Depth 1.70 it
Channel Slope 0.00500 ft/ft
Critical Slope 0.00568 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster 106.01.066.001
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North General Aviation Development Circular Pipe - 8-12
Friction Method Manning Formula
Solve For Normal Depth

au'

?
fix. ?z??,,?,s'`? ? § #!h'" ex "?' 4? ?f* t?.x?s?r".=": .i:?> S: S??-L`"?F" :?, :9G• tom. on ^ M T Ala y,Ku..: ?" 1
?Q?T#F6°x R•tt?=.'? ?E ?! ft? ?P.f ig ?47 S?I.o?? •*'+f ?3:.5;}'i? Tc.? ?'b 2i?.;`3 '?`
e?`•k >r t
.??u
??x??{??
?(
'?"f?
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????4'
??Yt??'??
??A ?4
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?
f??
A
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? n ^y?r•
S a Y s?,'?"'t"'?;9;5 ,x
Y"ft q *?af.'
?
?
?4
f
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?
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a
.. Y
.
,
}
?
.?L
r,
.?
.^
n
.
d?
' 'Sl
`
l.
YS
?:
.?ll:+?
.. v
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 1.50 ft
Discharge 3.55 ft /s
a rr;'r]. =z?l ?. ,h :?+-. (}??5,}?'?" _es`'?r "ri•::r,;?• z:. -vc rs? ??q? y^? rz1 ter. ?4 ??; ?? mz'?sw. ,p?
?
??
?
?
?
:•
r3i ? s??'r[.. :a9.ti?iFic3'Y,'w... . . .. aY
.,::. 3?
.?".,. =?&?,E ai.. .. ?'
.:i;
+a: F?:?.?w?"35,;?9
3>t.:s e _ ?d.a: ?
+
Normal Depth 0.73 ft
Flow Area 0.85 ft'
Wetted Perimeter 2.32 ft
Top Width 1.50 ft
Critical Depth 0.72 ft
Percent Full 48.7 %
Critical Slope 0.00528 fUft
Velocity 4.16 fUs
Velocity Head 0.27 ft
Specific Energy 1.00 ft
Froude Number 0.97
Maximum Discharge 7.99 ft'!s
Discharge Full 7.43 frfs
Slope Full 0.00114 fift
Flow Type SubC
riitical

4`.?"
?CC•6?i (.
j?YF, ?Yi A iY r4p x xi Q v"' .
CxSvW..yE = 1C:v - `ilLST?. 1. . ){
}j] ' ?tS ?'?F r`a., '?! & , yF{r.,?.gqa.Y MI 2 }
I4..:a`S' , F. Si ?a+?r! .'•L`
j' y.v- 3s?. `.
?. 4 Y]A:E w
Sll
Downstream Depth 0.00 It
Length 0.00 ft
Number Of Steps 0
n :3-r - a?. .. sd•?• ,a c`a
e Yi ? r: ? j
? >x r 4•r,. ?.
? .. 8 t9? >; ' •
?< u ^
?
?
{
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??
???
??
Y?
' }4
?? V
:5
C y
is
t.?. 4
u'
?fti
• .fY
EV
?L'
:1's
yCa
F?. .
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %,
Normal Depth Over Rise 48.68 %,
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster 109-01.066.001
10/1612007 3:52:02 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06796 USA [phone] Page 1 of 2
North General Aviation Development Circular Pipe - 8-12
Normal Depth 0.73 ft
Critical Depth 0.72 ft
Channel Slope 0.00500 ftfft
Critical Slope 0.00525 fUft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
1011612007 3:52:02 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 2 of 2
North General Aviation Development Circular Pipe - 8-13
}+ .7.?.re.. '' :,ya::? .. i. . '. '.'? 'N?,?`?K ;'Y-t?,+e` ?».??;? .X•,3nS., ,x.:Y rh?.?i ^Q':' .5 A -i ,?":`r,?%;}
Y43?"iu~?Lt.,?tzPi,.°iYfe.'F?'
A l..
Friction Method Manning Formula
Solve For Normal Depth
,:.?.. yr'xyM;a ?'?trsnix ?. v'ta?j?t, ?jkvva? (?:."'? r?v?}'my l`?"`K ?'r ?lrTte'??. #?k ?' ??? r`` i?sysx'?+'Y ?&. ' ,1r'"t? 4 kw ?,ya•` !K h+?c? '? d.. ..
1j??14`?fr7
?.s 6.c?.'Y'>. ;e .::A. ??a.. .:C?3??.?x. J ?.F S.. A.. x at u;,: , TP35?`ti+:E-. ??:._Y.ti. ;• . F iArz..: ?'.? ? ? ????pp rtrt? µ????tt???? :'iF. ?', ?3, `tf .f ?+? "i S A 1'?t '?F h
k::
Roughness Coefficient 0.013
Channel Slope 0.00500 fvft
Diameter 2.00 ft
Discharge 9.41 ff'/s
i ?'e7: av ? rte. ?v,, ' ??;!ae> ;?,:,??y ` ?;??"?€? -?.v': -..ssi'•?r.s..?.\ ,';c ?r;r.: ?ce?:rr a?x.,?a l,;a ;z:.>..;.:
1 {?4 x?f? 3•?r? ?"??4r?ii `?,?? 2 Y?'?g a??i?}°?t j„y:a..?[??10 J?:++ `?''???a??I???&? j; Y??? a,.,.r. g?. t:. N??v,,?,t ?'?f d ?+'?H?h3??
t::? .x. dta?;3? :? l?^.??'t+.•x:.?}.: i}adL?# 'iiF,,?3?.7w??u.lzta c?x:?i'`o?t' x.??s:?u.E'?!wa?i??'4?x.??:,b??.??`9•?ms"A.o?a?? k t,$.: «+r3e? .., x,'? :xa n..
Normal Depth 1.10 ft
Flow Area 1.78 ft2
Wetted Perimeter 3.35 ft
Top Width 1.99 ft
Critical Depth 1.10 It
Percent Full 55.1 %
Critical Slope 0.00510 fvft
Velocity 5.30 ftis
Velocity Head 0.44 ft
Specific Energy 1.54 ft
Froude Number 0.99
Maximum Discharge 17.21 ft'/s
Discharge Full 16.00 ft'/s
Slope Full 0.00173 ft/ft
Flaw Type SubCritical
,tar., H, - s?:'t.Ark s.5s R?? a'? r.,? ?:? q. ? x• ?r •?x„?v ;t,:
PION?.a
PIONEER
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 55.15 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [06.01.066.00]
10!16/2007 3:52:13 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 2•
North General Aviation Development Circular Pipe- 8-13
t::`• .«I'6A.}'+n `. Ye..y l? ' cr 0071 n k;' :j ?Nf in g. . ;t?'?:'";; 5i s:z
s c za VIT . ; ;3xj ...x..--y?»._?? 3,1."'x:,?..trq;?
?l Q. s ' 3£ y ?r a?w 41-5 ..0 <Y 9?1. ? ¢ ,Y9 i
.i'u 6::,ti?xah. tirfl.y' td ,Yn ??..,'?..:, x..-:zh. v4$.?`3 e*.a. .o :', ,, s•Sl`Xe.wa
Normal Depth
Critical Depth
Channel Slope
Critical Slope
1.10 ft
1.10 It
0.00500 ft/ft
0.00510 ft1ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster 108.01.066.001
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North General Aviation Development Circular Pipe - 8-14
ER X ' a ?64?f't S ?f• _`?° x? ? ? i yy r ? r a! r `? r { ? s z
..sc, .rs.,>.rc. >..:rai?.?.?>s:???:tfy.?.. ,??'e'?ta. SY??3.:cax... '.,.?I' .. •y???4ih??""T?????.?.?.?s';'.•r??.ii?t?.'_'?'?".wsttit%tr??v?i_:d
Friction Method Manning Formula
Solve For ' Normal Depth
. ",5. ' .?
,.. •t?xys:, "j,V 1 v» ^f5;1.'. Yf," 'r•: ,3R>is .la';' ::a rFy x. t.t
!zw,+y,F..?.gcs l.;y, E'(.3:.•:5?b°1.<.. ?'tv` ?!t`rgi),.ai..i Wi!'iYQn 01,
f p[ ${?p ?' j ?? ? ^Y' .`
1 SD - i k1i,^t ; ! .i p .? k?` 31 i,'.:^: 93 J F:r 3 -f "Im4?'?i?SZ? r j? Yt?StS'{t?dy T
la>.;>[" '..d.>•..t drt ? 1a ? r .v.>?: :,. X,kS. r A?;4rt t >at.:Tic:;G.:?>tr:??trc'2FRs'L?????-.s • . J?'.« .??. ?i.x: Yt.....x.. ????r. +Y.' :' ...t..`?.. ?.r.; .ik...,.n?'?.
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.00 ft
Discharge 11.49 ft'/s
.x ,.,,. -°°;t:s ?z?`_.?` °k"'YZ_ti T tY';t%?s:>•'E?k'''il;`}S?.z1?.+ ..x.wr.:l.?' .?..:,?{ :?«.7.I.'E?'l.. ? . ..?,. ?,y .!.?..: . `? : r,, ... .. ?.s; ;46: •tx„m ?::;-rta.;. -;?.
8Q ?•s ? t§???^? L x ?a t. ?' ? ? ? ?? ? ? Est 9'i>
?xz..,..?a;?r?...e. ?:off f»?r?•«.?a,??.?ar.~?. ?;,x?,'?•?.??i?' ?.,,. ???s.. ?_.:???et<?F•?;eai??1?•.?4?.€????'?` .. ?? ?,r?
Normal Depth 1.25 ft
Flow Area 2.07 ft'
Wetted Perimeter 3.66 ft
Top Width 1.93 It
Critical Depth 1.22 ft
Percent Full 62.7 %
Critical Slope 0.00548 ff/ft
Velocity 5.54 fits
Velocity Head 0.48 ft
Specific Energy 1.73 ft
Froude Number 0.94
Mabmum Discharge 17.21 ft'/s
Discharge Full 16.00 ft'/s
Slope Full 0.00258 ft/ft
Flow Type SubCritical
?,. ?- ? •c? w. . ? ?. ... ;.=ts ""•?i<' ... a.rr. ;., n+rs -+ e• a..E:x.y .
?'-*??'.S x u ? ?-: ,a?N ?f;?< .?: :.?. fir.,, :??..,.'? ?,;'. ,?• ? ;.,
?U::3trx'axY?$'?'ar 9<'"?d?? i i t",??v'?f;:<°2•i"T ? . -+.{?3? s??. '???si'..+.'?.?A.Et.:.??i[i'..'h..t. 1X:,..i
•:uk:+' a.&a :t ?? ?;?s't>. w3tte:.3at'"? . ? .. iv??S>:r;?ti'ar.?t? ?: .
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
,
N .
... '+r• yi
n ?
14 1 r?; t?4 WE ?Y.'3:<. ir' • .?? ' t• %? . ? 2 . ?r.?'s?.. . ?I? ' ? }. t''t9
f '
e,. ?? L . o tC`s4ri. ?i'? ?'. .ec ?3 ??.? . Ei?... ' Z?LS ..ca.~:: :: 1 ?.. `•i.. •.:??.?'?§$ +,`?4?? ...?c?^:, ??>yr.C#?,?`
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 62.72 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster 108.01.066.001
1011612007 3:52:23 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06796 USA [phone] Page 1 of 2
North General Aviation Development Circular Pipe - 8-14
i? ,.ate f - '.F W . ..
.:i.Y:?w-.'.?r•.q iif`?"i `t?, ON
Qp Ca f a; z d1111 ' a G??'ON]?&? Q?ar ? JS ? ? J?`?3
tcei.es C.a..-.?..,;. >S,darJat<'x.i;`sY$Sis ..a?'..?';.:L"? ..)•,fs ±._!Ra„?s:'5r.;
Normal Depth
Critical Depth
Channel Slope
Criticaf Slope
1.25 ft
1.22 ft
0.00500 ft/ft
0.00548 fftft
Bentley systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.001
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North General Aviation Development Circular Pipe - 8-15
??9??.Yt?????i%1? ?YA??.x????????l? ??? 2A;SY. Sw dTiA. ..?k ... y?3ii1 s ? „ •? a'N ?A?i' a ..???????f?'"?
Friction Method Manning Formula
Solve For Normal Depth
.A:w .Y?XM.?*<+Jy? f, f:•?:ft' :9 Ali ...
?.?{k??rv,??q?fs?'<y?a?r?????.?,?,gr,????'?.?`?•??z?x??.???.?r} ??,, ;+txi ?r'??,?w:??`<?•-..???.;a•??:'?k"?e #"= f?
?.<? ???fi ?4as??a?V,?.?1?r34???f: t??a??:^,a_?r? ?i?#faa ????1 ?r?<saLK??Z?{I? 33 % •c??t?????y ? ? a.
I,x. ! b"11101
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 2.00 ft
Discharge 14.41 ft'/s
a C" ? ??: ?k?y:. ? ;yt?. x,,;.,.?h•r ,,.fF" ? k. FY%;?w? ?Ss°t r' «t x•? ,n!?•?, s f."?;, •xr sv
?}" 1 ? Frt ?'? 3?Y ??r . 't 1 ? '•tC?,'-+. ro?i ?5?r ? tit ??,`?S+ith ?'?,? +?n,>,3$'!-1 }? ? ?y a 7 a r.? ? *? t
Normal Depth 1.48 ft
Flow Area 2.50 ft'
Wetted Perimeter 4.15 ft
Top Width 1.75 ft
Critical Depth 1.37 ft
Percent Full 74.2 %
Critical Slope 0.00616 fUft
Velocity 5.76 ft/s
Velocity Head 0.52 ft
Specific Energy 2.00 ft
Froude Number 0.85
MaAmum Discharge 17.21 ftz/s
Discharge Full 16.00 ft'/s
Slope Full 0.00406 Rift
Flow Type SubCritical
'"?',.? `r... •?,d" .?., ?:???`?` ?` ,x?r.3!a,?.??? ?1 n:'+$? •,• ,?7> K ?;•. :? ?? -..rte
?ftwTikf
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 It
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 74.23 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity fVs
Bentley Systems, Inc. Hoestad Methods Solution Center Bentley FlowMaster [06.01.066.001
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North General Aviation Development Circular Pipe - 8-15
g'- N?jsa I'M I MIM
Normal Depth
Critical Depth
Channel Slope
Critical Slope
1.48 ft
1.37 ft
0.00500 ft/ft
0.00616 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [00.01.066.00]
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North General Aviation Development Circular Pipe - 8-11
p
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ti5?
e??'?T
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? ,.?. 7.
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Sn
uZRxx
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Friction Method Manning Formula
Solve For Normal Depth
y@+ ^fxp r v? 'x+jx ,v''?,!::. y?^E •:rSe?i??':^.`4:@nff??b ? '3t :ii+,^. _p i ?xy cr..byl'+'''{? :.e:?xY:s:- •'a 7;....io.?;a.. ?,df ,? ,
i
?
?????
"
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?
?
?
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?
?
?
?
??
?°?
s. .?,.x>". s.?d'
,.<.._ i +
a.
y„ ,: m
x.?.?.a.... ?f.;:.?}a4.?_
.?
i. ...s.cl.?.
au?.)*e'u
?:
.us
>F?'
r va.
:.??dr,.:a,y...
.`
f`aaz
iG"?
2??.d
Roughness Coefficient 0.013
Channel Slope 0.00400 fUft
Diameter 3.00 ft
Discharge 38.53 ft'/s
r • x'. ? .?}<aur i`,' .,?. ?,y}'mr:.l' -•?Yr, 'yam . aEK?. Y.Ty,yfti"?' FzvTVe 0'q .in'i'K?'CFZ 3. :k•tta:-G' •ryy..a:, v..?rrx'/fj:2a sE ?<=-f . ?y^ 4
` n ' z?x?+ ?y??r* ?."py?$?•,>i 5.?1`.? ?S,f ??{?}c?fs- j?"?"6?,f.7?'•.?A`?+ •x3??vn„€1?n? ?o d ?' '3+ xy,?t+s ,. jet ? .,y ,t. .i ?ji';.;ry?f

Normal Depth 2.25 ft
Flow Area 5.70 ftz
Wetted Perimeter 6.29 ft
Top Width 2.59 ft
Critical Depth 2.02 ft
Percent Full 75.1 %
Critical Slope 0.00528 ft/ft
Velocity 6.76 ft/s
Velocity Head 0.71 ft
Specific Energy 2.96 ft
Froude Number 0.80
Maximum Discharge 45.37 fP/s
Discharge Full 42.18 ft'/s
Slope Full 0.00334 ft/ft
Flow Type SubCritical
+ ??
`
1 WE . ?
M
w
ill a`x.3r.3!
>? C ..
t_ 'hit ... . . .. ...
. i_
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0

Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 75.12 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
1011612007 3:52:42 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06796 USA [phone] Page 1 of 2
North General Aviation Development Circular Pipe - 8-11
.p. ?.. •w y: .za;3
q -`±r,"y:L'?: ;.'?;t"`'4t?:•,;aye'SW RIM
` t • VIVO- l Y+ ?2 ?tMa a? a3'.`'?4 a.nYi`^•P` y ; T .
..?, s ?w i?' ;!111112`0 ??
IRA
Normal Depth 2.25 ft
Critical Depth 2.02 ft
Channel Slope 0.00400 ft/ft
Critical Slope 0.00528 fUft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
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North General Aviation Development Circular Pipe - 10-3
53 ?,e,
1s eke f ?fSa 54t rv? !`r ?9?: acs x 1; ?x t+
faS "}>1 rr3>° 'M-0 .? ?''000.'r?';??
Friction Method Manning Formula
Solve For Normal Depth
Roughness Coefficient 0.013
Channel Slope 0.05800 fUft
Diameter 1.50 it
Discharge 7.84 ft'/s
.i;w. 144 ? K is rtav t x;xaa ?+ z 4`?.t .'- -% Paz, •?' „Y ;rte ;-Sr :<yu,.+d" ??:;v ¢ a ? :' }?' ° E?a+ :yn(
5-
{7
_ t?+. .,s.ti?'??:isk'Z.?oss.<a#?r1?.'?i%.a..Y.k..&ccsce. x+,.ti?G...Yzec wi3.n:«.fH:.H."/.n.ia}- ?..t:. '.s,"yr+.v:x:r.. i4 4 ???:?'d?.?j? a .ibUY??,:. M?`(.«•??
Normal Depth 0.57 ft
Flow Area 0.62 ft2
Wetted Perimeter 2.00 ft
Top Width 1.46 ft
Critical Depth 1.09 ft
Percent Full 38.2 %
Critical Slope 0.00731 fUft
Velocity 12.62 ft/s
Velocity Head 2.47 ft
Specific Energy 3.05 ft
Froude Number 3.41
Maximum Discharge 27.21 ft'!s
Discharge Full 25.30 f?/s
Slope Full 0.00557 fUft
Flow Type SuperCritical
' ??.3 ?: ?T' "3. '? 8,3 ?_"n. e? ? a..y,. .:.!!::+M: ..• .<? 'i,'A9- is R.y:T^^y3w:rX :•?!Y.::: tPwii X '
It?V. ..l . , .fir-? ??a? ?-'?`.YJ.e '?1' . '???p . ?' ' ? d??'. ??! Y' ?.?.^.y.: ••"'^,°lj:?Sy? N"??. r ?t'q., ?w... ?.,;.?? <.'.i
C?.Ti, Y 'iii: ? ?"2ix?r}'lc ??'??'X:t'his:??'???'?7i?4:m?.....'f..;s??.lir?la•?. .... .3?:"'.?4fi?.?Sas:`,'{3r??..; rR!s.?i?':..iK?'!4"ia?Y.?Y ?-'.K Y?" ev."?+???'?
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
??.?????''.??? ' 'fat'?k??+.?.??.?.?.?c?'r.?s?'.?'.?>?"w??',???*z;,. <.?'?'a?? d??:??n3"?' : ??.s?? .???'.'•`?
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 38.23 %
Downstream Velocity Infinity fVs
Upstream Velocity Infinity Ws
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [06.01.066.00]
1011612007 3:52:50 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 2
North General Aviation Development Circular Pipe - 10-3
Normal Depth 0.57 ft
Critical Depth 1.09 ft
Channel Slope 0.05800 ftlft
Critical Slope 0.00731 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
1011612007 3:52:50 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755.1666 Page 2 of 2
. North General Aviation Development Circular Pipe - 10-2
Friction Method Manning Formula
Solve For Normal Depth
>g. ra* +f'?r• raa wxa 3*',?{ ?x,.y??gK^3l ?T, ;g;` d •c r r x?•?x g, x f tYF f' ?q?' m?f m +e•M
?} } ?3?6??« ? ?' S F y'YtE? ...t ?.^,.1???`.? °,l?j?'t ???,,i ? S F "Y? 'l {? ???+??dl•?, r .? f 3 Nby. 1i?•
4?li..u.??t?tae.?:,?.:x?d°???'t?..?.? ?: ?;??i:s??,€?`.?."??tR?w..:3>:?? :,!.?...,;? '??;... >?.a?????`?.. au°j'?E ? .'.?.??:{'?I??`?!"i&??.[ti.. ? ..>.•.`.:.6? i??
Roughness Coefficient 0.013
Channel Slope 0.00500 tuft
Diameter 1.50 ft
Discharge 2.52 ft'!s
a: , ! F ? hj ";'...x^ •':?r'' ??:? ';?? °'iv ,R '?",? . is:? '` ` : ? •'l:.; ,s . -<zy...,?;.m.-: f?'• ? ?n='"?=„?'„°i.?s? ¢ ??:-?,
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Normal Depth 0.60 ft
Flow Area 0.66 ft'
Wetted Perimeter 2.06 ft
Top Width 1.47 ft
Critical Depth 0.60 ft
Percent Full 40.1 %,
Critical Slope 0.00503 fvft
Velocity 3.80 fVs
Velocity Head 0.22 ft
Specific Energy 0.83 ft
Froude Number 1.00
Maximum Discharge 7.99 fris
Discharge Full 7.43 ftafs
Slope Full 0.00058 ft(ft
Flow Type SubCritical
ii??? ??/???? ' S»1?'9f ?+?'? wit ?3F' , 'SF 4 .?.s'?N?x??.R'??9?F.?;.????A,?•a
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Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %,
Normal Depth Over Rise 40.15 %,
Downstream Velocity Infinity ftls
Upstream Velocity Infinity ff/s
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster 108.01.066.001
10/1612007 3:52:58 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA +1.203.755-1666 Page 1 of 2
North General Aviation Development Circular Pipe - 10-2
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Normal Depth
Critical Depth
Channel Slope
Critical Slope
0.60 ft
0.60 ft
0.00500 ft/ft
0.00503 ftift
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FiowMaster 108.01.066.001
1011612007 3:52:58 PM 27 $lemons Company Drive Suite 200 W Watertown, CT 06796 USA [phone] Page 2 of 2
North General Aviation Development Circular Pepe - 10-1
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Friction Method Manning Formula
Solve For Normal Depth
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l.aa}F.sx'?e4.+. ' fi f 7ff ,.- i': :Y3i3a^,ira';''
Roughness Coefficient 0.013
Channel Slope 0.00500 ft/ft
Diameter 1.50 ft
Discharge 2.51 ft-/s
I! nl;?Ji;fl„'?;'+@•: • .;Z...i?. iS' ,e^`«i}'Si:3?':ii4':ax... ;;f.e?' :arPirnr xz-".Et?o•(•<prui) i-:"?*?e??t: ":fi " S? "jiY ' zn. g : . ?
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Normal Depth 0.60 ft
Flow Area 0.66 ftz
Wetted Perimeter 2.06 ft
Top Width 1.47 ft
Critical Depth 0.60 ft
Percent Full 40.1 %
Critical Slope 0.00503 ft/ft
Velocity 3.79 ft/s
Velocity Head 0.22 ft
Specific Energy 0.82 ft
Froude Number 1.00
Maximum Discharge 7.99 fN/s
Discharge Full 7.43 ft'ts
Slope Full 0.00057 ft/ft
Flow Type SubCritical
1?,?3Y/.. `: ?.?.5'9?Hh. :''• ??-• s?„E 'G. _ ., S.. •_ {a A ? 'Fe t' 'sT ?1; "jn.
M1
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Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
1:??E..''????it'..M£l?.T•.'.. `I"l:i???3kS.-2??X? ^ ??Z??.??Ya??S 4 .3'f3? a Rw?°, tY• ,. ix•.
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 40.06 %
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Bentley Systems, Inc. Hassled Methods Solution center Bentley FlowMaster 108.01.066.001
1011612007 3:53:06 PM 27 Simon Company Drive Suite 200 W Watertown, CT 06796 USA [phone] Page 1 of 2
North Generaly Aviation Development Circular Pipe - 10-1 _
t?yk. ? t N t tt 4F #a5r?ir'1ro«}ck•<<S. ?y,?%?'w F?}i?'jG'?Fe`S??v? ? ?? N ?i?<{???f
a`i .r1f tl?j??5 cf:atr .lke?F ta.a? s ss F8?31>1}e?i° ak . :,.a4 S?imS3 . ?eie `ti ?r? 7
Normal Depth
Critical Depth
Channel Slope
Critical Slope
0.60 ft
0.60 ft
0.00500 ft/ft
0.00503 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
1019612007 3:53:06 PM 27 Siemone Company Drive Suite 200 W Watertown, CT 08795 USA [phone] Page 2 of 2
North General Aviation Development Barrel 2
" $ C"' cxo, u Y.3YxF••'x ar., { 5r,: "I'xrcx' - b .. .• ?`"'
BOOM
?? x.•n?s? -..'arrr uS.:?,?v 4.v"»"Y ?=ilyd':.r°$... arw e,~ux..1? dd
Friction Method Manning Formula
Solve For Normal Depth
.;A.4? is ?" ?s?3FrJi'??'`?z?4 ?? 4§ Sr?`z?;??aa ?m+t? ?" -hsy rsy?saa& ?'*b?a?ra ? r" is? ? r,??- cc4ayt,. :€?' ?' q stu
??t,1iJ
Roughness Coefficient 0.013
Channel Slope 0.02900 ft/ft
Diameter 3.00 ft
Discharge 2.84 ft'fs
'rid' ;?*;;,^t\?; ••2 ? '"a9 .'t„ £. r ti ?'ur:'r K "J't?'- {rr . y?a •- [;?t3:- F
' r?%.?" ,?a?i. ";~;c? ;??at.??<.:?;i?: •'t?t: ,;??; ?F?c??. ::y?x R a?,°?:`?c:, x?•'•• ?, .:a '?i
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Normal Depth 0.33 it
Flow Area 0.42 ft2
Wetted Perimeter 2.02 it
Top Width 1.87 ft
Critical Depth 0.52 ft
Percent Full 10.9 %
Critical Slope 0.00409 ft/ft
Velocity 6.80 ftls
Velocity Head 0.72 ft
Specific Energy 1.05 ft
Froude Number 2.54
Maximum Discharge 122.18 ft%s
Discharge Full 113.58 ft3/s
Slope Full 0.00002 ft/ft
Flow Type SuperCritical
,,a. 4' :: r ? Jc3??. ?. 0} „?, ? e ..?. l tJ;?4 ta;. ' ?.• a. 3 ? •i?:
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
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?".'YiE?%r `"X.'S.y^?F ?^?v?f??w, a?r_e .. ?y •c ? ..?
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Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 10.90 %
Downstream Velocity Infinity ftls
Upstream Velocity Infinity ft/s,
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster 108.01.066.001
1011612007 3:53:18 PM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 2
North General Aviation Development Barrel 2
3)m:?iFx`,...,.?A?£t??`ti?°'.?i.71xiT?wH.».?'w?a?uZ?ks?'_°Scx.:??i?6!?Ce:t ?.`?.?.'N.., a.?',N.??.r1+'?.:`t..??`r?."d.?LCa:?? ? x:a :4.d ??k????'ii'?!?3
Normal Depth
Critical Depth
Channel Slope
Critical Slope
0.33 ft
0.52 ft
0.02900 ft/ft
0.00409 ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00]
1011612007 3:53:18 PM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 2 of 2

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Table of Contents
Basins.gpw
Hydraflow Hydrographs by Intelisolve
Tuesday, Oct 16 2007, 3:4 PM
Hydrograph Return Period Recap ..................................................................... 1
2 - Year
Summary Report ................................................................................................................ 2
Hydrograph Reports .......................................................................................................... 3
Hydrograph No. 1, Rational, POST 1+2+3+4+5+6+7 ...................................................... 3
Hydrograph No. 2, Reservoir, BASIN 1 ........................................................................... 4
Pond Report ................................................................................................................ 5
Hydrograph No. 3, Rational, POST 8+9+10+11 .............................................................. 6
Hydrograph No. 4, Reservoir, BASIN 2 ........................................................................... 7
Pond Report ................................................................................................................ 8
10 - Year
Summary Report ...................................................................:............................................ 9
Hydrograph Reports ........................................................................................................ 10
Hydrograph No. 1, Rational, POST 1+2+3+4+5+6+7 .................................................... 10
Hydrograph No. 2, Reservoir, BASIN 1 ......................................................................... 11
Pond Report .............................................................................................................. 12
Hydrograph No. 3, Rational, POST 8+9+10+11 ............................................................ 13
Hydrograph No. 4, Reservoir, BASIN 2 ......................................................................... 14
Pond Report ............ .................................................................................................. 15
25 - Year
Summary Reoort .............................................................................................................. 16
Hvdroaraoh Reports ........................................................................................................ 17
Hydrograph No. 1, Rational, POST 1+2+3+4+5+6+7 .................................................... 17
2, Reservoir, BASIN 1
100 - Year
Summary Report .............................................................................................................. 23
Hydrograph Reports ........................................................................................................ 24
Hydrograph No. 1, Rational, POST 1+2+3+4+5+6+7 .................................................... 24
Hydrograph No. 2, Reservoir, BASIN 1 ......................................................................... 25
Pond Report .............................................................................................................. 26
Hydrograph No. 3, Rational, POST 8+9+10+11 ............................................................ 27
Hydrograph No. 4, Reservoir, BASIN 2 ......................................................................... 28
Pond Report .............................................................................................................. 29
18
Hydrograph
Pond Report . ....................................................................................................................................................................................... 19
Hydrograph No. 3, Rational, POST $+9+10+11 ............................................................ 20
Hydrograph No. 4, Reservoir, BASIN 2 ......................................................................... 21
Pond Report .............................................................................................................. 22
I
Hydrograph Return Period Recap
Hyd. Hydrograph Inflow Peak Outflow (cfs) Hydrograph

No. type Hyd(s) description
(origin) 1-Yr 2-Yr 3-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr
1 Rational ------- ----- 22.21 - - ---- 34.52 40.91 ----- 50.86 POST 1+2+3+4+5+6+7
2 Reservoir 1 ------- 2.62 - - - - 11.90 20.79 ------ 33.43 BASIN 1
3 Rational ------ ------- 26.53 --- ------ 39.86 46.48 ------- 56,43 POST 8+9+10+11
4 Reservoir 3 ------ 0.61 ------- ------- 2.84 3.97 --- 8.38 BASIN 2
Proj, file: Basins.gpw Tuesday, Oct 16 2007,3:04 PM
Hydraflow Hydrographs by Intelisolve
Hydrograph Summary Report
Hyd.
No. Hydrograph
type
(origin) Peak
flow
(cfs) Time
interval
(min) Time to
peak
(min) Volume

(cult) Inflow
hyd(s) Maximum
elevation
(ft) Maximum
storage
(tuft) Hydrograph
description
1 Rational 22.21 1 39 51,980 --- ---- ------ POST 1+2+3+4+5+6+7
2 Reservoir 2.62 1 73 50,715 1 2136.14 48,866 BASIN 1
3 Rational 26.53 1 20 31,834 ---- ------ ------ POST 8+9+10+11
4 Reservoir 0.61 1 40 31,334 3 2104.29 30,951 BASIN 2
Basins.gpw Return Period: 2 Year Tuesday, Oct 16 2007, 3:04 PM
Hydraflow Hydrographs by Intelisoive
Hydrograph Plot
Hydrallow Hydmgraphs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. I
POST 1+2+3+4+5+6+7
Hydrograph type = Rational Peak discharge = 22.21 cfs
2 yrs
Storm frequency = Time interval = 1 min
.
Drainage area = 19.730 ac Runoff coeff. = 0.6
Intensity = 1.876 in/hr Tc by User = 39.00 min
IDF Curve = AVL Airport.IDF Asc/Rec limb fact = 1 /1
Hydrograph Volume = 51,980 cult
POST 1+2+3+4+5+6+7
Q (cfs) Hyd. No. 1 -- 2 Yr
24.00 -
.... ................. ........ ..
20.00 ....
_..._.... ._... ._ ............._................
16.00
......
_................ ....... .......... _ _........_............. ............. ....... .... ................_....
............. ............ _ ............
12.00 - --- --
............. .... .... .......................... ................ .................. ...
8.00 -
4.00
0 00
Q (cfs)
24.00
20.00
16.00
12.00
8.00
4.00
0.00
3
0.0 0.2 0.3 0.5 0.7 0.8 1.0 1.2 1.3
Time (hrs)
Hyd No. 1
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 2
BASIN 1
Hydrograph type = Reservoir Peak discharge = 2.62 cfs
Storm frequency = 2 yrs Time interval = 1 min
Inflow hyd. No. = 1 Max. Elevation = 2136.14 ft
Reservoir name = BASIN 1 Max. Storage = 48,866 tuft
Storage Indication method used.
Q (cfs)
24.00
20.00
16.00
12.00
8.00
4.00
Q (cfs)
24.00
20.00
16.00
12.00
8.00
4.00
0.00 0.00
0 5 10 15 19 24 29 34 39 44 48
Time (hrs)
Hyd No. 2 Hyd No. 1
Hydrograph Volume = 50,715 cult
4
Pond Report
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Pond No. 1 - BASIN 1
Pond Data
Bottom LxW = 150.0 x 60.0 ft Side slope = 3.0:1 Bottom elev. = 2132.00 ft Depth = 8.00 ft
Stage / Storag e Table
Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cult) Total storage (cult)
0.00 2132.00 9,000 0 0
0.40 2132.40 9,510 3,702 3,702
0.80 2132.80 10,031 3,908 7,609
1.20 2133.20 10,564 4,119 11,728
1.60 2133.60 11,108 4,334 16,062
2.00 2134.00 11,664 4,554 20,616
2.40 2134.40 12,231 4,779 25,385
2.80 2134.80 12,810 •5,008 30,403
3.20 2135.20 13,401 5,242 35,644
3.60 2135.60 14,003 5,480 41,125
4.00 2136.00 14,616 5,723 46,848
4.40 2136.40 15,241 5,971 52,819
4.80 2136.80 15,877 6,223 59,042
5.20 2137.20 16,525 6,480 65,522
5.60 2137.60 17,185 6,742 72,264
6.00 2138.00 17,856 7,008 79,272
6.40 2138.40 18,539 7,279 86550
6.80 2138.80 19,233 7,554 94,104
7.20 2139.20 19,938 7.834 101,938
7.60 2139.60 20,655 8,118 110,056
8.00 2140.00 21,384 8,407 118,464
Culvert / Orifice Structures Weir Structures
IA] II31 [C] ID] [A] [B] [C] [D]
Rise (in) = 36.00 3.00 12.00 0.00 Crest Len (ft) = 16.00 13.00 0.00 0.00
Span (in) = 36.00 3.00 12.00 0.00 Crest El. (ft) = 2137.00 2138.00 0.00 0.00
No. Barrels = 1 1 2 0 Weir Coeff. = 2.60 2.60 0.00 0.00
Invert El. (ft) = 2124.00 2132.00 2135.60 0.00 Weir Type = Riser Broad -- -
Length (ft) = 78.00 0.00 0.00 0.00 Multi-Stage = Yes No No No
Slope (%) = 2.30 0.00 0.00 0.00
N-Value = .013 .013 .013 .000
Orif. Coeff. = 0.60 0.60 0.60 0.00
Multi-Stage = n/a Yes Yes No Exfiltration = 0.000 in/hr (Wet area) Tailwater Elev. = 0.00 ft
Note: CulvertfOrilice ouHtows have been analyzed under inlet and outlet control.
Stage (ft) Stage / Discharge Stage (ft)
10.00 10 00
8.00
6.00
4.00
2.00
0 00
8.00
6.00
4.00
2.00
0.00
5
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.00 200.00 220.00 240.00
Discharge (cfs)
Total Q
Hydrograph Plot
HydraFlow Hydrographs by Intelisolve
Hyd. No. 3
POST 8+9+10+11
Hydrograph type = Rational
Storm frequency = 2 yrs
Drainage area = 18.910 ac
Intensity = 2.806 in/hr
1DF Curve = AVL Airport.IDF
Tuesday, Oct 16 2007, 3:4 PM
Peak discharge = 26.53 cfs
Time interval = 1 min
Runoff coeff. = 0.5
Tc by User = 20.00 min
Asc/Rec limb fact = 1/1
Hydrograph Volume = 31,834 cult
u
POST 8+9+10+11
Q {cfs) Hyd. No. 3 -- 2 Yr Q {cfs)
28.00
24.00
20.00
16.00
12.00
8.00
4.00
0 00
28.00
24.00
20.00
16.00
12.00
8.00
4.00
0 00
0.0 0.1 0.2 0.3 0.3 0.4 0.5 0.6 0.7
Hyd No. 3 Time (hrs)
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 4
BASIN 2
Hydrograph type = Reservoir Peak discharge = 0.61 cfs
Storm frequency = 2 yrs Time interval = 1 min
Inflow hyd. No. = 3 Max. Elevation = 2104.29 ft
Reservoir name = BASIN 2 Max. Storage = 30,951 cuft
Storage Indication method used. Hydrograph Volume = 31,334 tuft
BASIN 2
Q (cfs) Hyd. No. 4 -- 2 Yr Q (cfs)
28.00
24.00
20.00
16.00
12.00
8.00
4.00
0 00
28.00
24.00
20.00
16.00
12.00
8.00
4.00
0 00
7
0 5 9 14 18 23 27 32 36 41 45
Time (hrs}
Hyd No. 4 Hyd No. 3
Pond Report
Hydraflow Hydrographs by Intelisolve
Pond No. 2 - BASIN 2
Pond Data
Bottom LxW = 166.0 x 71.0 ft Side slope = 3.0:1
Stage / Storag e Table
Stage (ft) Elevation (ft) Contour area (sgft) I
0.00 2102.00 11,786
0.35 2102.35 12,288
0.70 2102.70 12,799
1.05 2103.05 13,319
1.40 2103.40 13,847
1.75 2103.75 14,385
2.10 2104.10 14,931
2.45 2104.45 15,486
2.80 2104.80 16,050
3.15 2105.15 16,623
3.50 2105.50 17,204
3.85 2105.85 17,794
4,20 2106.20 18,393
4.55 2106.55 19,001
4.90 2106.90 19,618
5.25 2107.25 20,244
5.60 2107.60 20,878
5.95 2107.95 21,521
6.30 2108.30 22,173
6.65 2108.65 22,834
7.00 2109.00 23,504
Tuesday, Oct 16 2007, 3:4 PM
Bottom elev. = 2102.00 ft Depth = 7.00 ft
ncr. Storage (cuft) Total storage (cult)
0 0
4,213 4,213
4,390 8,603
4,570 13,173
4,754 17,927
4,940 22,867
5,130 27,997
5,323 33,320
5,519 38,838
5,717 44,556
5,919 50,475
6,124 56,600-
6,333 62,932
6,544 69,476
6,758 76,234
6,976 83,210
7,196 90,406
7,420 97,826
7,646 105,472
7,876 113,348
8,109 121,457
Culvert I Orifice Structures
[A] [B] [C] [D]
Rise (in) = 36.00 4.00 12.00 0.00
Span (in) = 36.00 4.00 12.00 0.00
No. Barrels = 1 1 1 0
Invert El. (ft) = 2090.00 2102.00 2104.40 0.00
Length (ft) = 112.00 0.00 0.00 0.00
Slope (%) = 2.90 0.00 0.00 0.00
N-Value = .013 .013 .013 .000
Orif. Coeff. = 0.60 0.60 0.60 0.00
Multi-Stage = n/a Yes Yes No
Weir Structures
[A] [B] [C] [D]
Crest Len (ft) = 16.00 12.00 0.00 0.00
Crest El. (ft) = 2106.00 2107.00 0.00 0.00
Weir Coeff. = 3.33 2.60 0.00 0.00
Weir Type = Riser Broad --- ---
Multi-Stage = Yes No No No
Extiltration = 0.000 in/hr (Wet area) Taiiwater Elev. = 0.00 ft
Note: Culvert/Orifice outflows have been analyzed under inlet and outlet control.
Stage (ft) Stage / Discharge Stage (ft)
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0 00
7.00
6.00
5.00
4.00
3.00
2.00
1.00
n nn
8
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.00 200.00 220.00 240.00
Discharge (cfs)
Total Q
Hydrog.raph Summary Report
Hyd-
No. Hydrograph
type
(origin) Peak
flow
(cfs) Time
interval
(min) Time to
peak
(min) Volume

(cuff) Inflow
hyd(s) Maximum
elevation
(ft) Maximum
storage
(tuft) Hydrograph
description
1 Rational 34.52 1 39 80,777 ---•-- - POST 1+2+3+4+5+6+7
2 Reservoir 11.90 1 65 79,408 1 2137.19 65,370 BASIN 1
3 Rational 39.86 1 20 47,832 ---- --- ----- POST 8+9+10+11
4 Reservoir 2.84 1 39 47,257 3 2105.21 45,608 BASIN 2
Basins.gpw Return Period: 10 Year Tuesday, Oct 16 2007, 3:04 PM
Hydrallow Hydrographs by Infeiisolve
Hydrograph Plot
Hydrallow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 1
POST 1+2+3+4+5+6+7
Hydrograph type = Rational Peak discharge = 34.52 cfs
Storm frequency = 10 yrs Time interval = 1 min
Drainage area = 19.730 ac Runoff coeff. = 0.6
Intensity = 2.916 in/hr Tc by User = 39.00 min
IDF Curve = AVL Airport.IDF Asc/Rec limb fact = 1/1
Hydrograph Volume = 80,777 cult
POST 1+2+3+4+5+6+7
Q (cfs) Hyd. No. 1 -- 10 Yr
35.00
30.00
25.00
20.00
15.00
10.00
5.00
Q (cfs)
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00 v ' ' 1 1 I 1 1 L 1 n nn
0.0 0.2
Hyd No. 1
0.3 0.5 , 0.7 0.8 1.0 1.2
1.3
Time (hrs)
10
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 2
BASIN 1
Hydrograph type = Reservoir Peak discharge = 11.90 cfs
Storm frequency = 10 yrs Time interval = 1 min
Inflow hyd. No. = 1 Max. Elevation = 2137.19 ft
Reservoir name = BASIN 1 Max. Storage = 65,370 cult
Storage Indication method used.
BASIN 1
Hydrograph Volume = 79,408 tuft
11
Pond Report. 12
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Pond No. 1 - BASIN I
Pond Data
Bottom LxW = 150,0 x 60.0 ft Side slope = 3.0:1 80tt0m elev. = 2132.00 ft Depth = 8.00 ft
Stage / Storage Table
Stage (ft) Elevation (ft) Contour area (sqft) In cr. Storage (cuft) Total storage (cuft)
0.00 2132.00 9,000 0 0
0.40 2132.40 9,510 3,702 3,702
0.80 2132.80 10,031 3,908 7,609
1.20 2133.20 10,564 4,119 11,728
1.60 2133.60 11,108 4,334 16,062
2.00 2134.00 11,664 4,554 20,616
2.40 2134.40 12,231 4,779 25,395
2.80 2134.80 12,810 5,008 30,403
3.20 2135.20 13,401 5,242 35,644
3.60 2135.60 14,003 5,480 41,125
4.00 2136.00 14,616 5,723 46,848
4.40 2136.40 15,241 5,971 52,819
4.80 2136.80 15,877 6,223 59,042
5.20 2137.20 16,525 6,480 65,522
5.60 2137.60 17,185 6,742 72,264
6.00 2138.00 17,856 7,008 79,272
6.40 2138.40 18,539 7,279 86,550
6.80 2138.80 19,233 7,554 94,104
7.20 2139.20 19,938 7,834 101,938
7.60 2139.60 20,655 8,118 110,056
8.00 2140.00 21,384 8,407 118,464
Culvert / Orifice Structures Weir Structures
[A] [B] [C] [D] [A] [B] [C] [D]
Rise (in) = 36.00 3.00 12.00 0.00 Crest Len (ft) = 16.00 13.00 0.00 0.00
Span (in) = 36.00 3.00 12.00 0.00 Crest El. (ft) = 2137.00 2138.00 0.00 0.00
No. Barrels = 1 1 2 0 Weir Coeff. = 2.60 2.60 0.00 0.00
Invert El. (ft) = 2124.00 2132.0 0 2135.60 0.00 Weir Type = Riser Broad ---
Length (ft) = 78.00 0.00 0.00 0.00 Multi-Stage = Yes No No No
Slope (%) = 2.30 0.00 0.00 0.00
N-Value = .013 .013 .013 .000
Orif. Coeff. = 0.60 0.60 0.60 0.00
Multi-Stage = n/a Yes Yes No Exfiltration = 0.000 in/hr (Wet area) Tailwater Elev. = 0.00 ft
Stage (ft)
10,00
.00 -
8.00-
6.00 -
6.00-
4.00-
4.00 -
2,00 -
2,00-
Note: Culverd0rifice outflows have been analyzed under inlet and outlet control.
Note:
Stage / Discharge stage (ft)
10.00
8.00
6.00
4.00
2.00
0,00 ' I I I I I ' 0.00
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.00 200.00 220.00 240.00
Total Q Discharge (cfs)
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 3
POST 8+9+10+11
Hydrograph type = Rational Peak discharge = 39.86 cfs
Storm frequency = 10 yrs Time interval = 1 min
Drainage area = 18.910 ac Runoff coeff. = 0.5
Intensity = 4.216 in/hr Tc by User = 20.00 min
IDF Curve = AVL Airport.IDF Asc/Rec limb fact = 1/1
POST 8+9+10+11
Q (cfs) Hyd. No. 3 -- 10 Yr
40.00
30.00
20.00

10.00
Hydrograph Volume = 47,832 cult
Q (cfs)
40.00
30.00
20.00
10.00
0.00 -V , I ' I I I 0.00
0.0 0.1 0.2 0.3 0.3 0.4 0.5 0.6 0.7
Time (hrs)
Hyd No. 3
13
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 4
BASIN 2
Hydrograph type = Reservoir Peak discharge = 2.84 cfs
Storm frequency = 10 yrs Time interval = 1 min
Inflow hyd. No. = 3 Max. Elevation = 2105.21 ft
Reservoir name = BASIN 2 Max. Storage = 45,608 cuft
Storage Indication method used.
Q (cfs)
40.00
30.00
20.00
10.00
- -------------
Q (cfs)
40.00
30.00
20.00
10.00
0.00 ' ' ' 0.00
0 3 7 10 13 17 20 23 27 30 33
Hyd No. 4 Hyd No. 3 Time (hrs)
BASIN 2
Hyd. No. 4 --10 Yr
Hydrograph Volume = 47.257 cult
14
Pond Report
Hydraflow Hydrographs by Intelisolve
Pond No. 2 - BASIN 2
Pond Data
Bottom LxW = 166.0 x 71.0 ft Side slope = 3.0:1
Stage / Storage Table
Stage (ft) Elevation (ft) Contour area (sqft) I
0.00 2102.00 11,786
0.35 2102.35 12,288
0.70 2102.70 12,799
1.05 2103.05 13,319
1.40 2103.40 13,8,47
1.75 2103.75 14,385
2.10 2104.10 14,931
2.45 2104.45 15,486
2.80 2104.80 16,050
3.15 2105.15 16,623
3.50 2105.50 17,204
3.85 2105.85 17,794
4.20 2106.20 18,393
4.55 2106.55 19,001
4.90 2106.90 19,618
5.25 2107.25 20,244
5.60 2107.60 20,878
5.95 2107.95 21,521
6.30 2108.30 22,173
6.65 2108.65 22,834
7.00 2109.00 23,504
Tuesday, Oct 16 2007, 3:4 PM
Bottom elev. = 2102.00 ft Depth, = 7.00 ft
ncr. Storage (cuft) Total storage (cult)
0 0
4,213 4,213
4,390 8,603
4,570 13,173
4,754 17,927
4,940 22,867
5,130 27,997
5,323 33,320
5,519 38,838
5,717 44,556
5,919 50,475
6,124 56,600
6,333 62,932
6,544 69,476
6,758 76,234
6,976 83,210
7,196 90,406
7,420 97,826
7,646 105,472
7,876 113,348
8,109 121,457
Culvert / Orifice Structures
[A] [B] [C] [D]
Rise (in) = 36.00 4.00 12.00 0.00
Span (in) = 36.00 4.00 12.00 0.00
No. Barrels = 1 1 1 0
Invert El. (ft) = 2090.00 2102.00 2104.40 0.00
Length (ft) = 112.00 0.00 0.00 0.00
Slope (%) = 2.90 0.00 0.00 0.00
N-Value = .013 .013 .013 .000
Orif. Coeff. = 0.60 0.60 0.60 0.00
Multi-Stage = n/a Yes Yes No
Stage (ft)
7.00
6.00
5.00
4.00
3.00
2.00
1.00 -
0.00
Weir Structures
[A] [B] [C] [D]
Crest Len (ft) = 16.00 12.00 0.00 0.00
Crest El. (ft) = 2106.00 2107.00 0.00 0.00
Weir Coeff. = 3.33 2.60 0.00 0.00
Weir Type = Riser Broad - --
M ulti-Stage = Yes No No No
Exfiltration = 0.000 in/hr (Wet area) Taiiwater Elev. = 0.00 It
Note: Culvert/Orifice outflows have been analyzed under inlet and outlet control.
Stage / Discharge Stage (ft)
7.00
6.00
5.00
------...---- . ........
4.00
.
----- ----........
3.00
2.00
1.00
0 00
95
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.00 200.00 220.00 240.00
Total Q Discharge (cfs)
16
Hydrograph Summary Report
Hyd.
No. Hydrograph
type
(origin) Peak
flow
(cfs) Time
interval
(min) Time to
peak
(min) Volume

(cuff) Inflow
hyd(s) Maximum
elevation
A Maximum
storage
(cuft) Hydrograph
description
1 Rational 40.91 1 39 95,734 ---- ------ ------ POST 1+2+3+4+5+6+7
2 Reservoir 20.79 1 58 94,360 1 2137.43 69,315 BASIN 1
3 Rational 46.48 1 20 55,777 ---- ------ ------ POST 8+9+10+11
4 Reservoir 3.97 1 38 55,189 3 2105.61 52,427 BASIN 2
Basins.gpw Return Period: 25 Year Tuesday, Oct 16 2007, 3:04 PM
HydraHow Hydrographs by Intelisolve
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 1
POST 1+2+3+4+5+6+7
Hydrograph type = Rational Peak discharge = 40.91 cfs
Storm frequency = 25 yrs Time interval = 1 min
Drainage area = 19.730 ac Runoff coeff. = 0.6
Intensity = 3.456 in/hr Tc by User = 39.00 min
IDF Curve = AVL AirporLIDF Asc/Rec limb fact = 1/1
Hydrograph Volume = 95,734 cuft
POST 1+2+3+4+5+6+7
Q (cfs) Hyd. No. 1 -- 25 Yr
50.00 -r-- --- -r-
40.00
30.00
20.00
10.00
0 00

Q (cfs)
50.00
40.00
30.00
20.00
10.00
0 00
17
0.0 0.2 0.3 0.5 0.7 0.8 1.0 1.2 1.3
Hyd No. 1 Time (hrs)
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 2
BASIN 1
Hydrograph type = Reservoir Peak discharge = 20.79 cfs
Storm frequency = 25 yrs Time interval = 1 min
Inflow hyd. No. = 1 Max.'Elevation = 2137.43 ft
Reservoir name = BASIN 1 Max. Storage = 69,315 cult
Storage Indication method used. Hydrograph Volume = 94,360 cult
BASIN 1
18
Pond Report
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Pond No. 1 - BASIN 1
Pond Data
Bottom LxW = 150.0 x 60.0 ft Side slope = 3.01 Bottom elev. = 2132.00 ft Depth = 8.00 ft
Stage / Storage Table
Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cult) Total storage (cult)
0.00 2132.00 9,000 0 0
0.40 2132.40 9,510 3,702 3,702
0.80 2132.80 10,031 3,908 7,609
1.20 2133.20 10,564 4,119 11,728
1.60 2133.60 11,108 4,334 16,062
2.00 2134.00 11,664 4,554 20,616
2.40 2134.40 12,231 4,779 25,395
2.80 2134.80 12,810 5,008 30,403
3.20 2135.20 13,401 5,242 35,644
3.60 2135.60 14,003 5,480 41,125
4.00 2136.00 14,616 5,723 46,848
4.40 2136.40 15,241 5,971 52,&19
4.80 2136.80 15,877 6,223 59,042
5.20 2137.20 16,525 6,480 65,522
5.60 2137.60 17,185 6,742 72,264
6.00 2138.00 17,856 7,008 79,272
6.40 2138.40 18,539 7,279 86,550
6.80 2138.80 19,233 7,554 94,104
7.20 2139.20 19,938 7,834 101,938
7.60 2139.60 20,655 8,118 110,056
8.00 2140.00 21,384 8,407 118,464
Culvert / Orifice Structures
[A] [B] ICI [D]
Rise (in) = 36.00 3.00 12.00 0.00
Span (in) = 36.00 3.00 12.00 0.00
No. Barrels = 1 1 2 0
Invert El. (ft) = 2124.00 2132.00 2135.60 0.00
Length (ft) = 78.00 0.00 0.00 0.00
Slope (%) = 2.30 0.00 0.00 0.00
N-Value = .013 .013 .013 .000
Orif. Coeff. = 0.60 0.60 0.60 0.00
Weir Structures
[A] [B] [C] [D]
Crest Len (ft) = 16.00 13.00 0.00 0.00
Crest El. (ft) = 2137.00 2138.00 0.00 0.00
Weir Coeff. = 2.60 2.60 0.00 0.00
Weir Type = Rlser Broad --- ---
Multi-Stage = Yes No No No
Multi-Stage = n/a Yes Yes No Exfiltration = 0.000 in/hr (Wet area) Tailwater Elev. = 0.00 ft
Note: Culvert/QdBGe outflows have been analyzed under inlet and outlet control.
Stage (ft) Stage 1 Discharge Stage (ft)
10.00
8.00
6.00
4.00
2.00
0 00
10.00
8.00
6.00
4.00
2.00
G 00
19
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.00 200.00 220.00 240.00
Total Q Discharge (cfs)
Hydrograph Plot
Hydraflow Hydrographs by lntelisolve
Hyd. No. 3
POST 8+9+10+11
Hydrograph type = Rational
Storm frequency = 25 yrs
Drainage area = 18.910 ac
Intensity = 4.916 in/hr
IDF Curve = AVL Airport. IDF
20
Tuesday, Oct 16 2007, 3:4 PM
Peak discharge = 46.48 cfs
Time interval = 1 min
Runoff coeff. = 0.5
Tc by User = 20.00 min
Asc/Rec limb fact = 1 /1
Hydrograph Volume = 55,777 cuft
POST 8+9+10+11
Q {mss) Hyd. No. 3 -- 25 Yr
50.00 ?-- -
40.00
30.00
20.00
10.00
Q (cfs)
50.00
40.00
30.00
20.00
10.00
0.00 V 1 1 1 1 1 _.-_1 . i v 0.00
0.0 0.1 0.2 0.3 0.3 0.4 0.5 0.6 0.7
Hyd No. 3 Time (hrs)
Hydrograph Plot
Hydrafiow Hydrographs by Intellsolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 4
BASIN 2
Hydrograph type = Reservoir Peak discharge = 3.97 cfs
Storm frequency = 25 yrs Time interval = 1 min
Inflow hyd. No. = 3 Max. Elevation = 2105.61 ft
Reservoir name = BASIN 2 Max. Storage = 52,427 cuft
Storage Indication method used.
Q (cfs)
50.00
40.00
30.00
20.00
10.00
0.00 -L
0
Hydrograph Volume = 55,189 cuft
BASIN 2
Hyd. No. 4 -- 25 Yr
Q (cfs)
50.00
3 6 10 13
Hyd No. 4 Hyd No. 3
40.00
30.00
20.00
10.00
16 19 22 25 29
-1 0.00
32
Time (hrs)
21
Pond Report
Hydraflow Hydrographs by Intelisolve
Pond No. 2 - BASIN 2
Pond Data
Bottom LxW = 166.0 x 71.0 ft Side slope = 3.0:1
Stage 1 Storage Table
Tuesday, Oct 16 2007, 3:4 PM
Bottom elev. = 2102.00 ft Depth = 7.00 ft
Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft)
0.00 2102.00 11,786 0 0
0.35 2102.35 12,288 4,213 4,213
0.70 2102.70 12,799 4,390 8,603
1.05 2103.05 13,319 4,570 13,173
1.40 2103.40 13,847 4,754 17,927
1.75 2103.75 14,385 4,940 22,867
2.10 2104.10 14,931 5,130 27,997
2.45 2104.45 15,486 5,323 33,320
2.80 2104.80 16,050 5,519 38,838
3.15 2105.15 16,623 5,717 44,556
3.50 2105.50 17,204 5,919 50,475
3.85 2105.85 17,794 6,124 56,600
4.20 2106.20 18,393 6,333 62,932
4.55 2106.55 19,001 6,544 69,476
4.90 2106.90 19,618 6,758 76,234
5.25 2107.25 20,244 6,976 83,210
5.60 2107.60 20,878 7,196 90,406
5.95 2107.95 21,521 7,420 97,826
6.30 2108.30 22,173 7,646 105,472
6.65 2108.65 22,834 7,876 113,348
7.00 2109.00 23,504 8,109 121,457
Culvert / Orifice Structures Weir Structures
[A] [Bl [C] [D] [A] [B] [Cl [D]
Rise (in) = 36.00 4.00 12.00 0.00 Crest Len (ft) = 16.00 12.00 0.00 0.00
Span (in) = 36.00 4.00 12.00 0.00 Crest El. (ft) = 2106.00 2107.00 0.00 0.00
No. Barrels = 1 1 1 0 Weir Coeff. = 3.33 2.60 0.00 0.00
Invert El. (ft) = 2090.00 2102.00 2104.40 0.00 Weir Type = Riser Broad - --
Length (ft) = 112.00 0.00 0.00 0.00 Multistage = Yes No No No
Slope (%) = 2.90 0.00 0.00 0.00
N-Value = .013 .013 .013 .000
Orif. Coeff. = 0.60 0.60 0.60 0.00
Multi-Stage = Na Yes Yes No Exfiltration = 0 .000 in/hr (Wet area) Tailwater Elev. = 0.00 ft
Note: Cuiverl/Orifice outflows have been analyzed under inlet and outlet controt.
Stage (ft) Stage / Discharge Stage (ft)
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0.00
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0 00
22
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.00 200.00 220.00 240.00
Total Q Discharge (cfs)
23
Hydrograph Summary Report
Hyd.
No. Hydrograph
type
(origin) Peak
flow
(cfs) Time
interval
(min) Time to
peak
(min) Volume

(cult) Inflow
hyd(s) Maximum
elevation
(ft) Maximum
storage
(cuft) Hydrograph
description
1 Rational 50.86 1 39 119,017 ---- ---- ...... POST 1+2+3+4+5+6+7
2 Reservoir 33.43 1 52 117,638 1 2137.58 73,674 BASIN 1
3 Rational 56.43 1 20 67,721 ---- ---- --- POST 8+9+10+11
4 Reservoir 8.38 1 37 67,119 3 2106.16 62,155 BASIN 2
Basins.gpw Return Period: 100 Year Tuesday, Oct 16 2007, 3:04 PM
Hydraflow Hydrographs by Intellsoive
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 1
POST 1+2+3+4+5+6+7
Hydrograph type = Rational Peak discharge = 50.86 cfs
Storm frequency = 100 yrs Time interval = 1 min
Drainage area = 19.730 ac Runoff coeff. = 0.6
Intensity = 4.296 in/hr Tc by User = 39.00 min
IDF Curve = AVL AirportADF Asc/Rec limb fact = 111
Hydrograph Volume = 119,017 cuft
POST 1+2+3+4+5+6+7
Q (cfs) Hyd. No. 1 -- 100 Yr
60.00
50.00
40.00
30.00
20.00
10.00
Q (cfs)
60.00
50.00
40.00
30.00
20.00
10.00
0.00 " ' I I I 1 I I t 1 0.00
0.0 0.2 0.3 0.5 0.7 0.8 1.0. 1.2 1.3
Hyd No. 1 Time (hrs)
24
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 2
BASIN 1
Hydrograph type = Reservoir Peak discharge = 33.43 cfs
Storm frequency = 100 yrs Time interval = 1 min
Inflow hyd. No. = 1 Max. Elevation = 2137.68 ft
Reservoir name = BASIN 1 Max. Storage = 73,674 cuft
Storage Indication method used.
a (cfs)
60.00
50.00
BASIN 1
Hyd. No. 2 --100 Yr
Hydrograph volume = 117.638 cult
40.00
30.00
20.00
10.00
Q (cfs)
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.00
0.0 1.8 3.7 5.5 7.3 9.2 11.0 12.8 14.7 16.5 18.3
Time (hrs)
Hyd No. 2 Hyd No. 1
25
Pond Report
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Pond No. 1 - BASIN 1
Pond Data
Bottom LxW = 150.0 x 60.0 ft Side slope = 3.0:1 Bottom elev. = 2132.00 ft Depth = 8.00 ft
Stage 1 Storag e Table
Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (tuft) Total storage (cult)
0.00 2132.00 9,000 0 0
0.40 2132.40 9,510 3,702 3,702
0.80 2132.80 10,031 3,908 7.609
1.20 2133.20 10,564 4,119 11,728
1.60 2133.60 11,108 4,334 16,062
2.00 2134.00 11,664 4,554 20,616
2.40 2134.40 12,231 4,779 25,395
2.80 2134.80 12,810 5,008 30,403
3.20 2135.20 13,401 5,242 35,644
3.60 2135.60 14,003 5,480 41,125
4.00 2136.00 14,616 5,723 46,848
4.40 2136.40 15,241 5,971 52,819
4.80 2136.80 15,877 6,223 59,042
5.20 2137.20 16,525 6,480 65,522
5.60 2137.60 17,185 6,742 72,264
6.00 2138.00 17,856 7,008 79,272
6.40 2138.40 18,539 7,279 86,550
6.80 2138.80 19,233 7,554 94,104
7.20 2139.20 19,938 7,834 101,938
7.60 2139.60 20,655 8,118 110,056
8.00 2140.00 21,384 8,407 118,464
Culvert I Orifice Structures
[A] [B] [C] [D]
Rise (in) = 36.00 3.00 12.00 0.00
Span (in) = 36.00 3.00 12.00 0.00
No. Barrels = 1 1 2 0
Invert El. (ft) = 2124.00 2132.00 2135.60 0.00
length (ft) = 78.00 0.00 0.00 0.00
Slope (%) = 2.30 0.00 0.00 0.00
N-Value = .013 .013 .013 .000
Orif. Coeff. = 0.60 0.60 0.60 0.00
Multi-Stage = n/a Yes Yes No
Stage (ft)
10.00
8.00
6.00 -
4.00 -
2.00 -
Weir Structures
[A] [B] [C] [D]
Crest Len (ft) = 16.00 13.00 0.00 0.00
Crest El. (ft) = 2137.00 2138.00 0.00 0.00
Weir Coeff. = 2.60 2.60 0.00 0.00
Weir Type = Riser Broad --- ---
Multi-Stage = Yes No No No
Exfiltration = 0.000 in/hr (Wet area) Tailwater Elev. = 0.00 ft
time: CulverUOrince oulflows have been analyzed under inlet and oullel control.
Stage I Discharge Stage (ft)
10.00
8.00
6.00
4.00
2.00
26
0.00 ' ' 1 1 1 1 1 1 -1 I I I 1 0.00
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.00 200.00 220.00 240.00
Discharge (ofs)
Total Q
Hydrograph Plot
HydraFlow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 3
POST 8+9+10+11
Hydrograph type = Rational Peak discharge = 56.43 cfs
Storm frequency = 100 yrs Time interval = 1 min
Drainage area = 18.910 ac Runoff coeff. = 0.5
Intensity = 5.969 in/hr Tc by User = 20.00 min
IDF Curve = AVL Airport.IDF Asc/Rec limb fact = 1/1
Hydrograph Volume = 67,721 cult
POST 8+9+10+11
Q (cfs) Hyd. No. 3 --100 Yr
60.00 - --
50.00
40.00
30.00
20.00
10.00
0.00
0.0 0.1
Hyd No. 3
Q (cfs)
60.00
50.00
40.00
30.00
20.00
10.00
' ' 1 "1 L 0.00
0.2 0.3 0.3 0.4 0.5 0.6 0.7
Time (hrs)
27
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Tuesday, Oct 16 2007, 3:4 PM
Hyd. No. 4
BASIN 2
Hydrograph type = Reservoir Peak discharge = 8.38 cfs
Storm frequency = 100 yrs Time interval = 1 min
Inflow hyd. No. = 3 Max. Elevation = 2106.16 ft
Reservoir name = BASIN 2 Max. Storage = 62,155 cuff
Storage Indication method used.
BASIN 2
Hydrograph Volume = 67,119 cult
28
Pond Report
Hydrafiow Hydrographs by Intellsolve
Pond No. 2 - BASIN 2
Pond Data
Bottom LxW = 166.0 x 71.0 ft Side slope = 3.0:1
Stage 1 Storage Table
Tuesday, Oct 16 2007, 3:4 PM
Bottom elev. = 2102.00 ft Depth = 7.00 ft
Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cult)
0.00 2102.00 11,786 0 0
0.35 2102.35 12,288 4,213 4,213
0.70 2102.70 12,799 4,390 8,603
1.05 2103.05 13,319 4,570 13,173
1.40 2103.40 13,847 4,754 17,927
1.75 2103.75 14,385 4,940 22,867
2.10 2104.10 14,931 5,130 27,997
2.45 2104.45 15,486 5,323 33,320
2.80 2104.80 16,050 5,519 38,838
3.15 2105.15 16,623 5,717 44,556
3.50 2105.50 17,204 5,919 50,475
3.85 2105.85 17,794 6,124 56,600
4.20 2106.20 18,393 6,333 62,932
4.55 2106.55 19,001 6,544 69,476
4.90 2106.90 19,618 6,758 76,234
5.25 2107.25 20,244 6,976 83,210
5.60 2107.60 20,878 7,196 90,406
5.95 2107.95 21,521 7,420 97,826
6.30 2108.30 22,173 7,646 105,472
6.65 2108.65 22,834 7,876 113,348
7.00 2109.00 23,504 8,109 121,457
Culvert I Orifice Structures Weir Structures
[A] [B] [C] [D] [A] [B] [C] [D]
Rise (in) = 36.00 4.00 12.00 0.00 Crest Len (ft) = 16.00 12.00 0.00 0.00
Span (in) = 36.00 4.00 12.00 0.00 Crest El. (ft) = 2106.00 2107.00 0.00 0.00
No. Barrels = 1 1 1 0 Weir Coeff. = 3.33 2.60 0.00 0.00
Invert El. (ft) = 2090.00 2102.00 2104.40 0.00 Weir Type = Riser Broad -- --
Length (ft) = 112.00 0.00 0.00 0.00 Multi-Stage = Yes No No No
Slope (%) = 2.90 0.00 0.00 0.00
N-Value = .013 .013 .013 .000
Orif. Coeff. = 0.60 0.60 0.60 0.00
Multi-Stage = n/a Yes Yes No Exfiltration = 0.000 in/hr (Wet area) Taiiwater Elev. = 0.00 ft
Note: Culvert/Orifice outflows have been analyzed under inlet and outlet control.
Stage (ft)
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0.00
Stage I Discharge
Stage (ft)
7.00
6.00
5.00
4.00
3.00
2.00
J 1.00
0.00
0.00
20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.00 200.00 220.00 240.00
Total Q Discharge (cfs)
29