20072120 Ver 1_Application_20071214

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STATE of NORTH CAROLINA
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DEPARTMENT OF TRANSPORTATION
MICHAEL F. EASLEY LYNDO TIPPETT
GOVF,RNOR
December 11, 2007
SECRETARY
Mr. Brian Wrenn O 7 ~ ~ O
401/Transportation Permitting Unit
1650 Mail Service Center
Raleigh, NC 27699-1650
SUBJECT: Secondary Road Paving/Pipe replacement on SR 2204 (Sylvan Road), Cleveland
County
Dear Mr. Wrenn:
The North Carolina Department of Transportation proposes to replace a pipe in conjunction with
a secondary road paving project on SR 2204 (Sylvan Road) in Cleveland County. The existing
28-foot, 24" CMP, will be replaced with a 50-foot, 30" HDPE. There will be 5 feet of rock
embedded in the streambed to prevent scouring at the inlet due to the existing upstream
streambed gradient (7.5%}. There will be a total loss of 2'7 linear feet of stream length.
Temporary cofferdams and bypass pumping will be utilized to manage the stream during
construction as needed. Upon project completion, the channel disturbed by the temporary
cofferdams will be restored to pre-project conditions and the surrounding area seeded and
stabilized. The total scope of the work will result in 27 feet of permanent impacts to unnamed
tributary to Buffalo Creek, which is classified as a WS-III watershed by the Division of Water
Quality.
The project area is not located within '/z mile of any critical watershed areas nor is SR 2204 a
rural or urban arterial; therefore, hazardous spill basins are not required. Enclosed is the
hazardous spill basin checklist. This office has conducted a GIS and field survey for the project
far historical sites and threatened/endangered species sites. No sites listed on the National
register of Historic Places are located in the vicinity of the project nor did there appear to be any
eligible structures. The federally Listed species for Cleveland County (USFWS listed dated May
10, 2007) include the Dwarf-flowered heartleaf (Hezastylis naniflora). National Heritage
Program records document the nearest Dwarf-flowered heartleaf location approximately 1.8
miles northeast of the proposed project area. The heartleaf is usually found on dry to moist
Post Office Box 47 Shelby, North Carolina 28151-0047

Page 2
SR 2044, Sylvan Road
December 11, 2007
ravine slopes (usually north facing and of the oak-hickory-pine forest type) and in boggy areas
near springheads. There is no suitable habitat within the proposed project area and no species
were observed. NCDOT is recommending a finding of "no effect" for T&E species and historic
sites.
I have enclosed apre-construction notification for a NW#14, sketches of planned activities and
location maps relative to the project.
Project information for the 401 Automated Payment Procedure is as follows:
• Work order number: 150455-55120005-120.023076-3855
• TIP#: NA
• Project Category: $240.00 Fee
If you have any questions or concerns please feel free to contact me at [phone]. Thank
you for your time and consideration on this matter.
Respectfully yours,
M.L. Holder, P.E.
Division Engineer
Twelfth Division
nr 'i/.~..i~.
Trish Simon
Division 12 Environmental Supervisor
Enclosures
cc: Polly Lespinasse, Division of Water Quality (Mooresville Regional Office)

OfTice Use Only: Form Version March OS
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
I. Processing
1. Check all of the approval(s) requested for this project:
^ Section 404 Permit ^ Riparian or Watershed Buffer Rules
^ Section 10 Permit ^ Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ^ Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: NW 14 (WQC # 3704
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ^
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here: ^
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ^
II. Applicant Information
1. Owner/Applicant Information
Name: Mike Holder. N.C. Department of Transportation
Mailing Address: P.O. Box 47
Shelby. NC 28151
Telephone Number: 704-480-9020 Fax Number: 704-480-5401
E-mail Address:
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Trish Simon
Company Affiliation: N.C. Department of Transportation
Mailing Address: P.O. Box 47
Shelby, NC 28151
Telephone Number: 704-480-9044 Fax Number: 704-480-5401
E-mail Address: tsimon(a(a),dot.state.nc.us
Page 5 of 12

Ill. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmazks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Pipe replacement/Secandary road Paving, 5R 2204 (Svlvan Road
2. T.LP. Project Number or State Project Number (NCDOT Only): 120.023076
3. Property Identification Number (Tax PIN}: NA
4. Location
County: Cleveland Neazest Town: Patterson Springs
Subdivision name (include phase/lot number}: NA
Directions to site (include road numbers/names, landmarks, etc.): From Patterson Springs,
north on Hwy 180/226, turn right on Pleasant Hill Church Rd, left on Svlvan Rd.
5. Site coordinates (For linear projects, such as a road ar utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 035° 14' 30.68" °N 081° 28' 29.85" °W
6. Property size (acres): <0.10 acres-.permit site: Entire secondary road project ~2 acres
7. Name of nearest receiving body of water: Unnamed tributary to Buffalo Creek, WS-III
8. River Basin: Broad
(Note -this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: Existing Conditions-pipe on unpaved secondary road.
General Land Use -Wooded, agricultural.
Page 6 of 12

•
Id. Describe the overall project in detail, including the type of equipment to be used:
Replacement of a ~8-foot long_24" Cl`rIP with a 50-foot long 30" HDPE. Rock will be
embedded in to the streambed at the inlet to~revent scouring due to the upstream streambed
gradient (7 5%1 Coir fiber matting will be utilized to stabilize embankment at the pipe inlet
and outlet Typical heavy equipment (trackhoe backhoe etc.} will be used for the
construction project
11. Explain the purpose of the proposed work: The purpose of the proposed work is to glade,
base and pave an unpaved secondary road to paved road standards.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision} in the past, please explain. Include
the USAGE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules. NA
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
No future permit requests are anticipated at this site.
VI. Proposed Impacts to Waters of the United StateslWaters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: Impacts from change in pipe
length and embedded rock in channel.
Page 7 of 12

2. Individually list wetland impacts. Types of impacts include, but are not limited to
mechanized clearing, grading, fill, excavation, flooding, ditchingldrainage, etc. For dams,
sepazately list impacts due to both structure and flooding.
Wetland Impact Type of Wetland Located v~nthm
100-year Distance to
Nearest Area of
Impact
Site Number Type of Impact (e.g., forested, marsh, Floodplain Stream (acres)
(indicate on map) herbaceous, bog, etc.) es/no) (linear feet)

Total Wetland Impact (acres) 0
3. List the total acreage (estimated) of all existing wetlands on the property: 0
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but aze not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
must be included. To calculate acreage, multiply length X width, then divide by 43,560.

Stream Impact
Perennial or Average
Stream Width Impact
Length
Area of
Number Stream Name Type of Impact Intermittent? Before Impact (linear Impact
(indicate on map) feet) (acres)
1 Ut to Buffalo Fill Intermittent 2.5 feet 22 feet 0.0013
Creek
1 Embedded Rock 2.5 feet 5 feet 0.0003
Temporary 2.5 feet
1 Cofferdams/Bypass 20 feet 0.0011
piping

*27 feet *0.0016
permanent acre
Total Stream Impact (by length and acreage) 20 feet
temporary permanent
0.0011
* Permanent impacts contained within the area of temporary impacts impacts acre
temporary
im cts
5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill, excavation, dred~in~, flooding, drainage, bulkheads, etc.
Open Water Impact
Name of Waterbody Type of Waterbody Area of
Site Number (if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact
(indicate on ma) ocean, etc.) (acres)

Total Open Water Impact (acres) 0
Page 8 of 12

6. List the cumulative impact to all Waters of the U. S. resulting from the project:
Stream Im act acres : 0.0016
Wetland Im act (acres):
O en Water Impact (acres}:
Total Impact to Waters of the U. S. (acres) 0.0016
Total Stream Impact (linear feet): Permanent 27
7. Isolated Waters
Do any isolated waters exist on the property? ^ Yes ®No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
NA
Pond Creation NO POND IMPACTS
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ^ uplands ^ stream ^ wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.):
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.):
Current land use in the vicinity of the pond:
Size of watershed draining to pond: Expected pond surface area:
VII. Impact Justification (Avoidance and Minimization]
Specifcally describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.
The road is being paved on the existing roadwav footprint. The increase in nine length is due
to the proposed paving requirements to provide for adequate lanelshoulder width.
VIIL Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
Page 9 of t2

freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines far stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o. enr.state. nc.us/ncwetlands/strmaide. html.
l . Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreagellinear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
MITIGATION NOT ANTICIl'ATED
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
[phone] to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet):
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):
Amount ofNon-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
Page 10 of 12

IX. Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ® No ^
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds far environmental documentation.
Yes ^ No
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ^ No ^
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 1 SA NCAC 2B .0259 (Tar-Pamlico}, 15A NCAC 02B .0243 (Catawba) 1 SA NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ^ No
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
* Impact Required
Zone ,~,,,,,,,a f +. Multiplier ,,~:,;~,;~~
1T I 3 (2 for Catawba)
2 I 1.5
Total
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration /Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or .0244, or .0260.
XI. Stormwater (required by DWQ)
Page 11 of 12

Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level.
Minimal increase in road width to bring the unpaved road up to paved road standards
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
No wastewater is ,generated from the project.
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC ZH .0500) or any Buffer Rules?
Yes ^ No
Is this an after-the-fact permit application? Yes ^ No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ^ No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description:
The_secondary road paving~roject will not result in additional development of the surrounding
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-dawn schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
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. ~/-o ~
Applicant/Agent`s Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.}
Page 12 of 12

Vicinity Map
Figure 1
STATE OF NORTH CAROLINA
DEPARI'MFNf OF TRANSPORTATION SR-2204 Sylvan Road I Cleveland County

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Name: GROVER Location: 035° 14' 24.89" N 081° 28' 07.37" W
Date: 11 /19/2007 Caption: Sec. Rd PavingJPipe Replacement SR-2204 Sylvan Rd, UT to
Scale: 1 inch equals 2000 feet Buffalo Creek, WS-III, Broad River Basin
Copyright (C) 1998, Maptech, Issc

Existing Conditions
Fl 9Fl Fl d Fl ~l SFl Fl d Pipe Grodfent 528 % h~ O ~ O D. O 0 co O a
O 9 9 ~ ~ d ~o• `L ~ • O ~i D. • • 0
Upstream Grodfent 75 % ~ 9~ Dotivnstreom Grodfent 0.6
Sediment I' Deep •S~
Proposed Plan
FC \Fl
Upstream Grodfent 75
ElnDtddbd
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0 0 0 0 0 0 0
Pipe Grodfent lJ2 % 0~~~
~~, aownstreom Grodfent 0.6
sylvan_rdy_str rec_pipe placemen.dgn 11/16/2007 08:17:52 AM

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NCDOT
HAZARDOUS SPILL BASIN CHECKLIST
Division: 1 ~ County: ~~'.1PVPland Project ID: 120.023076
River Basin: Broad Bridge No:
Route: 2204
Stream: Ut to Buffalo Creek
Water ality Criteria:
Yes No
Stream Crossing Blue Line On USGS r r
oRw r ~
WSI r r
WS II,III OR 1V, Crossing Within O.Smi of W.S. Critical Area r r
Roadway Criteria:
Route Designation-
Yes No
Arterial Urban r
Arterial Rural r r
Additional Site Information:
Yes No
Is a Hazardous Spill Basin Required? f r
Criteria Based Upon NCDOT "Best Management Practices for the
Protection of Surface Waters" (March, 1997).

EROSION AND SEDIMENTATION
CONTROL PLAN
CLEVELAND COUNTY
S R 2204
DATE December 4, 2007
DIVISION OF HIGHWAYS
DEPARTMENT OF TRANSPORTATION
STATE OF NORTH CAROLINA
23
W.O. # 1X.0076

PURPOSE
The purpose o
Sedimentation Control E
of Highways is to cont
and sedimentation
construction and main
this Erosion and
rogram of the Division
of accelerated erosion
resulting from the
enance of roads and
highways in North Carolina. This program is
developed pursuant to the requirements
contained in the Rules and Regulations for
Erosion and Sedimentation Control which were
adopted by the North Carolina Sedimentation
Control Commission on April 10, 1974.

PROJECT
DESCRIPTION
3R 2204 (8ylvaa Rd) from its intersection with 3R 1103 to Dead Ead. It will be
constructed to the attached typical section. No problem areas are anticipated. The
work will be completed during the 07/08 construction season.

1. Grading to be started by state forces. Install all necessary silt fences, sediment basins, and check dams
and begin clearing construction area.
2. Rough grade the construction area and begin installing any storm drainage and/or cross lines. Install
inlet and outlet protection as storm drainage is being installed.
3. As an area is brought to finish grade and the black base is placed for the road, and the shoulder
finished, then seed, mulch and tack should be provided for denuded areas.
4. Leave all erosion control devices in place until vegetation has been established sufficiently to
withstand erosion. DO NOT remove any erosion control devices until directed by the County
Engineer.
MAINTENANCE PLAN
1. All erosion and sediment control practices will be checked for stability and operation following every
runoff producing rainfall but in no case less than once every week. Any repairs will be made
immediately to maintain all practices as designed.
2. Sediment will be removed from behind the sediment fence when it becomes about 0.5 feet deep at the
fence. The sediment fence will be repaired as necessau to maintain a bonier.
3. All seeded areas will be fertilized, reseeded as necessary and mulched according to the instruction in
the seeded specifications to maintain a vigorous, dense vegetative cover.
4. Outlet protection will be installed when outlets are installed. Filter fabric will be placed under the
entire stone section and will be repaired and replaced if damaged during any phase of construction.
5. Sediment will be removed from the basin when it reaches 1.0 foot below the emergency spillway. The
filter stone is to be cleaned or replaced when basin no longer drains properly.
GROUND COVER FOR SLOPES. FILLS AND OTHER GRADED AREAS
The angles for graded slopes and fills shall be no greater than the angle which can be retained by vegetative
cover or other adequate erosion control devices or structures.
Seeding should be done in accordance with the specifications for that season of the year.
Additional erosion control measures may be required depending on the actual field conditions.

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TYPICAL SECTION NO. 1
IpTE: MYFIEMT EDN /W!E/ AIIE 1:1 YIILEN MI//N OTIIEIIIfE
PAVEMENT SCHEDULE
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CONY ~ N'1'tONAL SY1~IIlOLS
,_
ItcforesEnEibtt _.::..... _
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'I'rtttJ~orarf 5i~t UiEc~t ...............................:....... ~j~`1'~i;~'
..
1 ctnporarf St~E I'attce
.I, _............ ............. I I i-i I E-III----
ctn~~orarf S~ope Uraitt ............
S~~E I~asin ' 'fpe ... .................. ................................
1 A.
Si~E Ilasin 'I'fpe ],~ ...........
Itoek SiIE Check llant .............
:erE~t ~etnt .............
.. .
~ entrorer~ SEone ViEclt Cltcclc ..................................
~'
SEi~~itta ~astn ....................................................
I'ilEe
r Ilcrnt ~esttt .. ..................................................
..
~ cmrornrf SeditnenE 'Prep ..................
...........
I~ir Itap Sec~itncttE Uatn ................
SEone Si~E Screen ..............
Dire ~n~eE I~roE .
ecEion ...................................•-•----..........
..
~ crn~rorarf lltrersiott ..._.....
.................... _.--- _~.. Tp .,_.._,
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Temporary Rock Silt Check Type B (TRSC-B) :1633.02
IS a small dam with a centered weir that limits erosion in a drainage ditch and helps to reduce
the flow velocity of water.
USE during construction in a channel, roadside ditch outlet, temporary silt ditch or temporary
diversion ditch where grade meets and/or exceeds 3 %.
CONSTRUCT of Class-B stone, with spacing equal to: (3 % ditch grade) * (100 ft.).

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DITCH
OF PAVEMENT
o'~~ °~~
5
STRUCTURAL STONE
ISOMETRIC VIEW
r1' YIN. NATURAL GROUND
CROSS SECTION
VEE DITCH
NOTES:
USE CLASS 'B' EROSION CONTROL STONE FOR
STRUCTURAL STONE.
THE ENGINEER MAY DIRECT THE OPTION OF
CLASS "A" STONE FOR SITES HAVING LESS THAN
ONE (1) ACRE DRAINAGE AREA AND A DITCH
GRADE LESS THAN 3~.
USE N0. 5 OR N0. 57 STONE FOR SEDIMENT
CONTROL. PLACE SEDIMENT CONTROL STONE
AS DIRECTED BY THE ENGINEER.
BASE OF DITCH
1' YIN. ~~~- AROUND 12" 12" YIN.
(~, TE~DIMENT
\.J' ------- --- -------------- ---------
~ FLOW
' ~,
OPTIONAL TYPE "B" I q -g
SILT BASIN -~~' '
CROSS SECTION ~-------- 12" THICK SEDIMENT
TRAPEZOIDAL DITCH CONTROL STONE
ELEVATION VIEW
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Silt Basin Type-B (SB-B) :1630.02
IS a defined pit or basin which collects sediment flowing through a drainageway (often built in
conjunction with temporary rock silt checks in order to slow water flow).
USE in a drainage ditch with temporary rock silt checks. Maintain until vegetation becomes
established.
CONSTRUCT basin width variable to the size of the drainageway, so that the basin's length
equals twice its width, and its depth is a minimum of 2 feet. Storage capacity is 3600 cubic ft. per
acre (capacity =length * width * height). Clean the basin regularly.
NOTE As per special revisions, all silt basins must have Coir Fiber Baffles installed during
construction. See attachment for details.

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ENGLISH STANDARD DRAWING FOR
SILT BASIN TYPE 'B'
C

'-"°' STATE OF
NORTH CAROLINA
DEPT. OF TRANSPORTATION
DIVISION OF HIGHWAYS
RALEIGH, N.C.
~~ ~

i
COIR FIBER BAFFLE:
Description
Furnish material, install and maintain coin fiber ballles according to the details in the
plans or in locations as directed. Coir Fiber Ballles shall be installed in silt basins and
sediment dams at drainage outlets. Work includes providing all materials, placing,
securing, excavating and backfilling of Coir Fiber Baffles.
Materials
(A) Coir Fiber Mat
Matting: Provide matting to meet the following requirements:
100% coconut fiber (coir) twine woven into high strength matrix
Thickness - 0.30 in. minimum
Tensile Strength 1348 x 626 lb/ft minimum
Elongation 34% x 38% maximum
Flexibility (mg-cm) 65030 x 29590
Flow Velocity Observed 11 ft/sec
Weight 20 oz/SY
Size 6.6 x 164 ft (120 SY)
"C" Factor 0.002
Open Area (measured) 50%
(B) Staples
Provide staples made of 0.125 in. diameter new steel wire formed into a u shape not less
than 12" in length with a throat of 1" in width.
(C) Posts
Steel posts shall be at least 5 ft. in length, approximately 1 3/8" wide measured parallel to
the fence, and have a minimum weight of 1.25 lb/ft of length. The post shall be equipped
with an anchor plate having a minimum area of 14.0 square inches, and shall be of the
self-fastener angle steel type to have a means of retaining wire and Coir fiber mat in the
desired position without displacement.
(D) Wire
Provide 8-gauge wire strand of variable lengths.
Construction Methods

Place the coir fiber baffles immediately upon excavation of basins. Install three (3)
baffles in basins with a spacing of one fourth (1/4) the basin length and according to the
detail sheets. Two (2) coir fiber baffles shall be installed in basins less than 20 ft. in
length with a spacing of one third (1/3) the basin length.
Steel posts shall be placed at a depth of 2 ft. below the basin surface, with a maximum
spacing of 4 ft. Attach an 8-gauge wire strand to the steel posts at a height of 3 ft. with
plastic ties or wire fasteners. Install a steel post into side of the basin at a variable depth
and a height of 3 ft. from the bottom of the basin to anchor coir fiber mat. Secure anchor
post to the upright steel post in basin with wire fasteners.
The coir fiber mat shall be draped over the wire strand to a minimum of 3 ft. of material
on each side of the strand. Secure the coir fiber mat to the wire strand with plastic ties or
wire fasteners. Place staples across the matting at ends and junctions approximately 1 ft.
apart at the bottom and side slopes of basin. Overlap matting at least 6" where 2 or more
widths of matting are installed side by side. Refer to details in the plan sheets. The
Engineer may require adjustments in the stapling requirements to fit individual site
conditions.
Measurement and Payment
Coir Fiber Baffles will be measured and paid for by the actual number of linear feet of
coir fiber baffles which are installed and accepted. Such price and payment will be full
compensation for all work covered by this section, including, but not limited to,
furnishing all materials, labor, equipment and incidentals necessary to install the coir
fiber baffles.
Payment will be made under:
Pay Item Pay Unit
Coir Fiber Baffle Linear Foot

ROCK PIPE INLET PROTECTION TYPE-A: og
o g
°boo
A rock pipe inlet protection type-A is a horseshoe shaped structure with abuilt-in
sediment storage area around the outside perimeter of the structure. The type-A
rock pipe inlet protection shall be used at pipe inlets no larger than 36 inches in
diameter where it is receiving flow from several directions. The type-A rock pipe
inlet protection utilizes class-B stone lined with #5 or #57 stone to protect drainage
pipe structures by trapping sediment before it enters. They have a sediment storage
pit which is designed by the same procedures as a silt basin.
AREAS OF USE:
• At inlets to pipes no larger than 36 inches in diameter where it receives flow
from several directions.
• In areas where it can be cleaned and maintained on a regular basis.
DESIGN CRITERIA:
• Structural stone -class-B stone
• Sediment control stone - #S or #57 stone
• Sediment storage area - 1800 cubic ft./acre
• Dam height - 3 ft. minimum
33 March, 1992

W
NOTE
STRUCTURAL STONE SHALL
BE CLASS B STONE AND
SHALL BE PAID FOR AT THE
CONTRACT UNIT PRICE PER
TON "STONE FOR EROSION
CONTROL (CLASS "B")."
SEDIMENT CONTROL STONE
SHALL BE NO. 5 OR NO. 57
STONE AND SHALL BE PAID
FOR AT THE CONTRACT UNIT
PRICE PER TON "SEDIMENT
CONTROL STONE."
DIMENSIONS ARE MINIMUM
ACCEPTABLE UNLESS
OTHERWISE SPECIFIED BY
THE ENGINEER.
A
PLAN

H~
`~
~./
N
FLOOD STORAGE ZONE
SEDIMENT STORAGE ZONE
1.5'
1.5'
INVERT PIPE
~~ A
- ~", FLi iW -~
STRUCTURAL STONE
I' \ ~I MIN.
3'
8 • ~-~
SEDIMENT CONTROL STONE
LIONS SECTION A - A
«`p 11)TIAAT
STANDARD ROCK PIPE
STATE OF ]
svn~hn~ DI V ISI~ON
NATURAL GROUND
INVERT PIPE ,: FLON
~- 36' PIPE MAX.
INLET PROTECTION TYPE-A
RTH CAROLINA
)I' H I(~ H WA TS
IGH, N.('.
STAND.' I;EV.

~"'~~
.;
TEN~ORARY SII.T FENCE:
A temporary silt fence is commonly used at the toe of a fill section to prevent off-
site sedimentation. It is made of permeable filter fabric buried at the bottom,
stretched and supported by steel posts. The silt fence reduces the water flow while
retaining the sediment. They may also be used to divert water flow to protected
outlets. Silt fences need to be checked after each significant rainfall to ensure there
effectiveness. They must be maintained on a regular basis. Silt fences shall ~ be
installed across streams, ditches, or waterways.
AREAS OF USE:
At toe of fill sections where sediment runoff can be stored and contained
inside the project limits.
DESIGN CRITERIA:
Material With Wire Without Wire
Fabric Type 3 Class A Type 3 Class B
Steel posts length 5 ft 5 ft.
Post spacing 10 ft. 6 ft. maximum

17 March, 1992

44 ,~
'4:..~ '
-~ ' :~
(61MAX. WITFIO()T~W1RE)
SHALL BEN 2%2EGAGE M N MUM
TOP AND BOTTOM STRAND
SHALL BE 10 CAGE MINIM
-r
00

~'
:.•
N
'_ ;
WIRE FILTER FABRIC
NOTES
WIRE SHALL BE A MINIMUM OF 32"
IN WIDTH AND SHALL HAVE A MINIMUM
OF 6 LINE WIRES WITH 12" STAY
SPACING.
FILTER FABRIC SHALL BE A MINIMUM
OF 36" IN W[DTH AND SHALL BE
FASTENED ADEQUATELY TO THE~1F-If2E AS
DIRECTED BY THE ENGINEER.
STEEL POST SHALL BE 5'-0" IN
HEIGHT AND BE OF THE SELF-FASTENER
ANGLE STEEL TYPE.
FILTER FABRIC--~
COMPACTED FILL
~~
~~
e. ~ VIII=I~I~I
i•-e' ~
_~
EXTENSION OF FABRIC AND
WIRE INTO THE TRENCH
-}~--- STANDARD TEMPORARY SILT FENCE
ST.~TIi OF NORTH ('AROI.INA STD. NO. REV.
symbol ur-'IS>*or,), or_.tlic.Hwn,~~'s ~ -- -___-- -_

i
Temporary Rocl Sediment Dam Type-B (TRSD-B) : 1G3~.02
LS a small damwith a waeir outlet and built-in sedime~ ba&in,
OSE at me outld of a Lemporary dive~ioq lempotary slope dam, y sBt ditch, dcaioa~ge ditch or c~nel ~ .
trap sediment before water rooo~~'hstves the paoject site. Do not ose is a live stns~m
CONSTRIICT of Class-B stow lined w~ aedimmt~onhvl ~ooG. Basin ahooW 6e 3600 cubic 8. Pa' acre, aqi
dam weir length variable to the d~aio~e area (munimum 41l<. ~ 1 aae a less)- Apron hmglh should be
approximately «luat o~ the neigec of the ~ vrith 2:1 side swpe. ._.
... ..
i ......._..,____ ...
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r

TEMPORARY ROCK SEDIMENT DAM TYPE-B:

A temporary rock sediment dam type-B is a small dam structure with a weir outlet
and abuilt-in sediment basin. Type-B temporary rock sediment dams shall be used
in drainage ditches to detain sediment-laden runoff and to trap sediment to protect
receiving streams and adj acent property. The type-B temporary rock sediment
dams utilize class-B stone lined with #5 or #57 stone in conjunction with a built in
basin to trap sediment. They shall not be used in live streams.
AREAS OF USE:
• At outlets of temporary diversions, temporary silt ditches, channels, and
temporary slope drains.
• In locations where the dam can be cleaned and maintained on a regular
basis.
• In locations where runoff is exiting the construction site.
• In small natural drainage turnouts.
DESIGN CRITERIA:
DRAINAGE AREA
acr s
1
2
3
4
S
MINIMUM WEIR LEN TH
4.0
6.0
8.0
10.0
12.0
• Storage capacity -1800 cubic ft./acre to be cleaned out when half full
(approximately 3-4 times a year).
• Side slopes - 2 :1 (or flatter).
• Structural stone - class B stone.
• Sediment control stone - #5 or #57 stone.
• Length of apron -approximately height of dam.
31 March, 1992

STEP 1: Input ProjectMforntatlon 'items in red are inputs
~ ~
Sactlor Description: 32+25 to 39+04
Construetlon~CtsT Y (Y/N) County: CJe~Jand ~ ' ~
•
HQW7 N (Y/N) SRtM 2435
RlghfA.eR: RT (RULt) , • , . , ,
Contributing
RNV Width: 15 feet
LengM of Run X 679 feet
Dlaturfxd Area = 0.23 saes
% Ditch Grade: 2.00 %
37EP 2: ONch Lbtar rsquNarnerrta: l/t~9 Me RegWisd lJrra- tab end note recornntertdatbns on plans.
S7$+3: Rseornmsnded spaeNrg brRbeAr SNt Clrsek TYPtBb fibs tesloe/ty trorrhol cttlyl
spacitte ° ~ / 2.000 % drtcit wade L feet
'Type -B Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step 1.
'Type A Rock Silt Checks can be substituted to satisfy the storage requirements found in Step 5
S1EP4: EnterOraktageArw: 0.23 acres See Steo 5
'Must equal or exceed the Disturbed Area found above
STEP 5: IF DRAgiIAGE AREA < 3 Acre: Use RUSLE2 to dlet~re storage (V~CRKs)
Regression Constant, C 549 Table 2-7 (Level I/I R~ Menuaq
Reirdap Factor, R 200 Fpure 2-1
Erodlbilily Fedor, K 0_3 Table 2-2 orhftp/~spddatamaR.nns.usda.gov/
Dilchline Skpe, s 0.02000 ftAt
Vm 540.22 ft /arJyr
Raquirod Storage Volume= 126 1 ft Using 82 % of Rainfall Factor-
see note in cell CS
Storeee from Troe A Rock SiK Checks
EnterDrtch Side Sk>pe Gradient (H:W: 2 :1
Enter Cfredr Height 1.5 ft
Area Behind Check: 4.5 ft
Length of DitGr Behind Check 75.00 ft
Storage Behind Cheek (assumes ft5% el/eclene»: 73.13 ft GOOD, Place measure(s) on EC Plan
Type A Cheeks rega/red: X 2.0
Total 148.25 ft
STEP 5: IF DRAINAGE AREA > 3 Aqe: Use Surface Area CaMtrlatlorts to deterrMne storage, A=435Qo
a. Determine the Peak Runoff Rate, Qv (QP = Qto (Qzc ~r HQW)) USE Q10
Qo~1A
Rtxtofl CaelTicient, C 0_5 Table 1-5,1-8, f-7
Time d ConarrtUatbrt, ~ (minutes)
1 SAorMut Method, F (A<4.63)
Watershed Slope, S 3 %
ta^ 6 minutes
2 Khpkh Method
Flow Path, L 350 feet 'see Module 1 Eq. 3
Watershed Skrpe, S 0.02 tVlt 'see Module 1 Eq. 3
~rpich, 4= N/A minutes
Using a Return Period (T) ~ 10 yrs (25 ibrHQtN) and a to of >~ minutes,
the rainfall indarfsity, ! (mrM1, cart be read from Append"or A or the
NOAA nebsiM, hlQ7lifxlscnws.no8a.9ovAgsorphiSbr6hrc~Fds.hhM
Raktfa5 Intensity, f (iNhr) 7.19 irtlhr Appentitr A
Drainage Area given as 0.23 saes
Peak Rate of Runoff, Qo =CiA 0.83 da
b. Determine Ole Required Surface Area= 358.68 ft
a Use Surface Area (A) to determine required LUME of Temporery Type-B Sediment Dam
Design Depth: 3 ~
Required VOLUME using the design depth: 1079.04 tt~
Check to sss lrSadtmnt Storaaa Raquharrrants an mat:
sadtnerdsrorege Requred uainp 9800 rt3rac .Storage calculated using..Surface Area govenu -
Diahtrhed Area (awes). o.2a See Sediment Dam Dimensions Below
RequkeA SedkneM Storepe (4''). a•t1.7/
Temporary Type-8 Sediment Dam
Final Required Storage: 1079.04 ft
OPTIONS
2:1(L:14~ 3:1(L:W)
De th ft : 3 3 Place Type B Sediment Damat
Width ft : 14 11 outlet point. Ensure Rock Silt
Len (R): 28 33 Check Type-B's are used to
Weir Width ft ; 4 4 satisfy requirements of Step 3.
«ar staraae tr') 117s ~oa9
OK OK See Step 7 if installing this
Wray euAac. Area (ftsl measurers not practical.
OK OK

STEP 1: Mput Prq(ect h-Iorrrtedon 'items in red are inputs
Sactlon Oest:tiption: 32+25 to 39+04
t'.onstrutfion tN1N County: OevelerM ~
loss than 8 mortMs7 Y (Y/N) -
HQW~ N (V/N) SRA 2475
RightlLeR: LT (Rf/Lt)
Contributlrp
RIW WWtlt: 15 feet
Lertptlt of Run X 679 feet
Disturbed Aroa = 0.23 acres
% DlEclt Grads: 2.00 %
STEP 2.- Dl6dr Urts-rsgtM-simovMS: I/bA2e llte AsqufrW Liter tab and none /eoorrtr7rertde6urrs on plans.
STEP 3: Rseontrttsrtdsd spsc/rg tbrRodr SMt Cheek 7~8k (!br vsbeky oonbol oroly)
SPacmO = X44 / 2.~Q % ditch pade = ~ feet
'Type -8 Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step 1.
'Type A Rock Silt Checks can be substituted to sab'sfy the storage requirements found in Step 5
S7EP4: E-tlerDrafnapsArer 0.23 taxes See Sten 5
'Must equal or exceed the Disturbed Area found above
STEP S: 8= DRAINAGE AREA < 3 Acre: Uae RUSLE2 to clstenMrN storeys (V=CRKs)
Regresafon Constant, C 549 Table 2-7 (Level 111 Ref Manual)
RairtfaM Fedor, R 200 Figure 2-1
ErodibiM' y Fedor, K 0_3 Table 2-2 orhffpl/soildatamartnres.usda.pov/
Ditdtline Stops, s 0.02000 ftAt
Va 610.22 R'/ac/yr
Required Storage Volumes 1 .31 ft Using 82% of Rainfall Factor-
see note in cell C5
Storage from Tvoe A Rock SiK CMeks
Enter Dih:h Side Slope Gradient (H: Iq: 2 :1
Enter Check Height 1.5 ft
Area Behind Check' 4.5 ftz
Lergtyr ai Ditch Behind Check: 75.00 ft
Storeys Behind Check (assumes 86% elfeclertcy): 7J.1$ ft3 GOOD, Place measure(s) on EC Plan
ype A Cheeks requred: X gg,
roW 148.25 ft'
STEP 8: IF DRAINAGE AREA > 3 Acre: Use Barbee Area Gleuladons to detemWts storeys, A=436Q r
a. Determine the Peak RuttolF Rate, Qa (qp = Qto (qb for HQW)) USE Q10
Q~nCiA
Rutrolf Caelficierd, C
Tkne of Cor>certtration, 4 (minutes)
1 Shortcut Medtor; 4 (A4.6S)
Watershed Sbpe, S
4=
Klrpk:h Method
Flow Pafh, L
Watershed Slope, S
~~, te'
0_5 Tablel-5,1-8,1-7
3%
5 minutes
350 feet See Module 1 Eq. 3
0.02 ftAt S9e Module 1 Eq. 3
N/A minutes
Using a Return Fbrtod (T) o/ f0 yrs (251brHQlAQ and a to of ®minutes,
the raarrfalf Y. / (atm~, can be read from Appendoc A ortlte
NOAH tt6baAe, hfQzl/fMsamvs.rtoea.9oviltdadpld~br6/nc~lfds-h6nl
RakAa6 Inlenaily, I (whr) 7.19 irtRv Appendar A
Dreinage Atee ~ as o.2s atxes
Peak Rafe of Runoff, Qo =CIi4 0.83 ds
b. Determine the Required Surface Area= 368.68 ftZ
c. Use Surface Area (A) to determine required V ME M Temporary Type-B Sediment Dam
Design Depth: 7 ~
Required VOLUME using the design depth: 1079.04 ft
CA~ek to sw M Sedkmnt Sforyrr Rpuk~rrunts aro mat:
sed:nem sroreoe RequKed usip 3000 fYSlac Storage calculated using Surface Area governs -
D'sWrbed sea (saes). o.z3 See Sediment Dam Dimensiohs Below
Required Sediment Storage (R'~• eN.7{
Temporary Type-B Sediment Dam
Final Required Storage: 1079.04 ft
OPTIONS
2'1 IL•WI s•~ n •tNt
De th ft : ~
3 3 Piece Type 0 Sediment Dam at
Width ft : 14 11 outlet point. Ensure Rock Silt
Lan th ft): 28 33 Check Type-0's are used to
Welr Wi th R : satisfy requirements of Ste
3

~,s<a+aal~
1175
1089 p
.
OK OK See Step 7 if installing this
.raysuAruAr.a(ftt) OK OK measure is not practical.

~ $TEP 1: Irtpttt Project InlormaNon 'items in red are inputs
$ectlon Description:
C 39+ 04 to 39+31.40
County: UevdaiM 7
lass tltan moMlts? Y (Y/N)
lfQYy7 N (Y/N) SRN 2435
Rigfd/LeR RT (RbLt)
CorrMbuthp
RNy Wfdth: 15 feet
Lenpfh of Run X 27.4 feet
Disturbed Ares = 0.01 acres
% Ditch Grade: 2.00 %
STEP 2: D1Mh L/ner requlrenwnb: U(iiiire Ore fiegrrhed I1ner tab and note reaormrtertdaGons on plans.
STDa 3: RseonanartdW apaclrrg fbrfiock SAIL CAeek Tjrps-8'a (fbr rebcltY conlro/ arNH
Spacirrg = ~4 f x.444 % ditch Orsde = 1if4 feet
'Type -B Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step i.
`Type A Rock Silt Checks can be substituted to satisfy the storage requirements 7nund in Step 5
STEP 4: ErtSrDrahngeAres: 0.01 saes See Sten 5
'Must equal or exceed the Disturbed Ala round above
STEP S: IF DRAINAGEARFaI < 3 Acre: lhle RUSLE2 to detenrr3ne (y^CRKa)
Regression Cortsmnt, C 549
Rainfall Fator, R 200
Erodibifty Factor, K 0.3
Dikst9ne Slope, s 0.02000 ftAt
V= 040.22 ti'/ac/yr
Required Storage Volunw~ 5.10 ft
Table 2-7 (Carrel 111 Ref Manual)
Figure 2-1
Table 2-2orhftpJ/soik/atamartnres.usda.gov/
.Using 82J of Rainfall Factor-
see Hate in cell CS
Storeee from Tvoe A Roek Sik Clwcks
Enter Ditch Side Sk>!oe Gratiient(H:V): 2 :1
Enter Chedt Height 1.5 ft
Area Behind Check: 4.5 ftZ
Length a Dikh Behind Check: 75.00 ft
Storage Behind Check (aswmes 65% eHeeierrcy): 28.72 Ili Excessive Number of Type A checks. Go to
TypeAChecksrequlred: X 1.0 Step6
Taal 28.72 ft°
STEP 8: IF DRAINAGE AREA > 3 Acre: Use Suface Area Cakufatfons to akfter-rdne storegs, A=1.45Qo
a, Determine the Peak Runoff Rate, QP (QP= Qro (Q?s for HQW)) USE Q10
QosCi/1
Rurrotf CoefiaeM, C 0_5 Table 1-5,1.6,1-7
Time of Concentre0on, ti (mkttrtes)
1 Shortcut Method t,(Ac4.6S)
Watershed Slope, S 3 %
te' S minutes
2 Khpkh Method
Flow path, L 350 feet 'see Module 1 Eq. 3
Watershed Skrpe, S 0.02 ftAl 'see Module 1 Eq. 3
tOrpich, to= N!A minutes
Using a Retum Period (T) of 10 yrs (251brHQlrV) and a to a 5_00 minutes,
Ore rair~l intensify, J (rNhr), can be reed from Appendbr A or Ore
NOAA nebsde, hfpol/fMsr~mvs.noaa.gov/AdsdplH~6htc~.hfrM
Rairrtefl Intensity, l (iMrr) 7.19 irrrtrr Appends A
Drainage Area giver[ as 0.01 saes
Peak Rate of RurroM, Qo ~tA 0.04 ds
b. Determine the Required Surface Area= 15.64 ft
c. Use Surface Area (A) to determine required L M of Temporary Type-B Sediment Dam
Design Depth: 3 t
Required VOLUME using tfre design depth: 46.91 ft
Chadr ro aoo H sed4rrenf Srora9a RsquMernenb aro mar:
sediment srorage Requaea using 3000 rt3rac Storage calculated using Surface Area governs -
Oswrbed Nea (aaes)s oof See Sediment. DamDimensions Below
Requied Sediment Storage (R )' 3E.97
Tempbmry Type-8 Sediment Dam
Fnel Required Storage: 46.91 ft
OPTIONS
2~1 n .yam z•~ n •un
fh n : 3 3 Place Type B Sediment iSani at
Width ft : S 3 ociriet point, Ensure Rock Situ
L ~ R : 8 9 Check Type-B's-are used to
a r Width ft : 4 4 satisflj requirements of Step 3.
ar9y Storage Is'1 ``r'4.
OK 81
OK
See Step 7 if installing this
yor%Y SuKau Araa t~~ 18
OK 27
OK measure is not practical.

' STEP 1: Mput RoJeet In/orntabion 'items in red are inputs
Sectlon Description:
Construetlon am. 39+ 04 to 39+31.40
Crwrtty: aevdem
less than B montlts9 Y (Y/N)
FIQYY? N (V/N) SR i 2435
RightA.sR LT (RULt)
Corttrlbuang
RNY YYWM: 15 feet
Lergtls of Run X 27.4 feat
Dismrbsd Area = 0.01 saes
% Ditch Grads: 2.00 %
STEP 2: Dkeh Lk-er requkernents: (l6iize the Rsqufied Lir-er tab and note recommendations on plans.
STEP 3: Rseonerrsarrrdad apeekrg 11a-Reek 5111 Cheek Typs-BY (1br velocity conbW oM»
Spacktg = ~QQ f 2.000 % ditch glade L feet
'Type -B Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step 1.
'Type A Rock Silt Checks can be substituted to satisfy the storage requirements found in Step 5
STEP4: EntlerD-a/nageAree: 0.01 apes See 5teo 5
'Must equal or exceed the Disturbed Area found above
STEP 5: ~ DRAINAGEAREA < 3 Acre: U~ RUSiF2 to dsterrrrine storage (V=CRlts)
Regression Constant, C 549 Table 2-7 (Level 111 Ref ManuaQ
Rainfall Factor, R 200 Fpure 2-1
ErodlbililyFactar,K 0_3 Tabfe2-2 orhtfplr~oeldatamart.nrrs.usda.gov/
Ditchline Slope, s 0.02000 ft/R
W 510.22 ft''laciyr
Required Storage Volume= 5.10 R Using 82 % of Rainfall Factor-
see note in cell CS
Stwaae from Tvoe A Rock Slk Cheeks
Enter Ditch Side Slope Gradient (H:1~: 2 :1
Enter Check Height: 1.5 R
Area Behind Chedc 4.5 ~
Lengtit of Ditch Behind Chedr. 75.00 R
Storage BehirMCheck (assumes 85%eflecisrtc»: 28.72 R E xcessive Number of Type A chocks. Go to
_~
Type A Cheeks required: X 1.0 Step 6
Total 28.72 ft
STEP 8: IF DRA/NAGEAREA > 3 Acne: Use Surface Ares Calculations to detenrYrre storage, A=435Qo
a. Determine the Peak Runoff Rate, ~ (Qo = Qto (Q~ for HQW)) USE Q10
Qo=CIA
Runoff CoeRicieM, C 0_5 Table: 1-5,1,1-7
Time of Concentra0wt, ~ (minutes)
1 SfroReut Methoa( to (Ac4,8S)
Watershed Sktpe, S 3 %
ta= 8 minutes
2 Kirpich Method
Flow Path, L 350 feet "see Module f Eq. 3
Watershed Slope, S 0.02 ft/ft ';see Module 1 Eq. 3
Kkpich, fc= N/A minutes
Using a Retum Period (T) of 10 yrs (25 for HQl4~ and a to of 5.00 minutes,
the rainfaN indensdy, 1(irvttr), can be read konr Apprerrdor A or the
NOAA tvebsAe, MgolArdsc.mrs.raaa.gwAfds/ordnc,~lHs-hfml
RairAaq In[ensRy, I (irtlh~ 7.19 inrttr Appendot A
Drainage Area ghren as 0.01 acres
Peak Rate d Ruraft, Q. ~iA 0.04 tie
b. Determine the Required Surface Area= 15.64 flz
a Use Surface Area (A) to determine requked~Me of Temporary Type-B Sediment Dam
Design Depth: 3 ~
Required VOLUME using the design depot: 46.91 ft
Choclr to see 7! Sedment Storage ReprNwrrsnts are mat:
iedNnent storage Requied usag 3600 n3lac Storage calculated using Surface. Area governs -
osturbed Area (acres)= o.ot See Sediment. Dam Dimensions Seloty
Required Sediment Storage tfi~' 33.97
Temporary Type-B Sediment Dam
Final Required Storage: 46.91 R
OPTIONS
2•r n •un z•r n •rNt
De at it : 3 S P}ace Type B Sediment Dam at
Width ft : 3 3 outlet point. Ensure Rock Sift
Len R ~ 6 9 Check Type-B's are used to
Weir Width ft : 4 4 satisfy requirements of Step 3.
v«th stases (M 54
OK 81
OK
Soe Step 7ifrnstalting this
Wrpysurraca~rwpt'), ¢8
OK 27
OK measure is notpracticat..

STEP 1: Mput Project /itformadon 'items in red are inputs
Section Dsscription: 10+00 to 11+15
ConsWetbn flme County: Oer+elend t
k+ss then 6 moMhs~ Y (Y/N)
HQW7 N (Y/N) SRM 2435
Rlghf/LeR:
~~t RT (RULt)
9
RtiN tiVidth:
15
feet
LertgMr oT Run X 115 feet
Disturbed Area 0.04 acres
% Dikh Grade: 2.00 %
STEP 2: DMeh Liter rsqut-srrtst-!s: lhlima the Rarlitlred Liner tab and rate ieoontmendatarts on plaits.
STEP 3: Rieronrnertded speelrtp for Roei Slit Chrtck ~% Ab/ tnefocky cortbW oeelyJ
Spedng = X44 / Z..Q44 % ditch prede ]~0 feet
'Type -B Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step 1.
'Type A Rock SilPChecks can be substituted to satisfy the storage requirements found in Step 5
STEP 4: EiHSrDniregeAree: 0.04 acres See Steo 5
'Must equal or exceed the Disturbed Area found above
STEP S: ~ DRAINAGE AREA < 3 Acre: tlse RUSLE2 to dstemNrte storage (yyCRKsJ
Regressbn Corrsfertt, C 549
RaktfaN Factor, R 200
Erodib911y Fedor, K 0.3
Dftchline Slope, s 0.02000 ft/R
V~ 540.22 ft'/ac/yr'
Required Storege Volume= .39 ft
Table 2-7 (Level /f/ Ref Manual)
Figure 2-1
Table 2-2 or htrpl/aoildatamart nnx.usda.gov/
Using 82 % of Rainfall Factor-
see note: in cell CS
Storaae hom Tvoe A Rock SiK Cheeks
Enter Ditch Side Skae Gradient (H:1~: 2 :1
Enter CheckHeyht. 1.5 ft
Area Behind Check: 4.5 ft2
lE,vpf<I of DikYt Behind Check: 75.00 ft
Storage BMitd Cheek (assumes 85% sI/ectenc» '~' R3
Type A Cheeks requltxd: X y, GOOD, Place measure(s) on EG Plan
Total , .-73.13 ft
STEP 8: 8= DRABYAGEAREA > 3 Acre: Use Sunc~e Area Calculetlons to deGerrnlne sfo-age, Ay35Qo
a. Determine fire Peals Runoff Rale, Qv (Op = Qto (Q~y Tor HQ1N)) USE Q1 D
Oo=CiA
Runoff CoelSdent, C 0_5 Tale 1-5,1-6,1-7
Time of Cor>centradon, ~ (minutes)
1 Shorteeut MethorL 4 (A<4.BS)
watershed Sktpe, S 3 %
to° 6 minutes
2 Kkplch Method
Flow Pafh, L 350 feet 'see Module 1 Eq. 3
Watershed Slope, S 0.02 ftM 'see Module 1 Eq. 3
Kirpich, 4° N/A minutes
!!sing a Retum Period (T) of f0 yrs (25 forHQYlq and a to o/ 5.00 minutes,
the rairth>/I iniertsdy, / (rNhr), can be read from Appencl6t A orOre
NOA,4 eebsile. IttQ~1AK1s¢nwa.raaa.gOVArsbr6haplds.hbrtl
ReiMall Mtensdy,l(iNhr) 7.19 irdhr Appends A
Draktege Arm given as 0.04 sixes
Peak Rate of RunaM, q„ =CiA 0.14 ds
b. Determine Ste Required Surface Area= 62.55 fl
c. Use Surface Area (A) to determine retptired L M of Temporary Type-8 Sediment Dam
Design Depth: 3 ~
Required VOLUME using Ore design depth: 187.88 ft
Cheek to see NSM4nanf Storeys Rspdranrents aro mat:
seamerrt srorage Regaled us6g 3000113rac Storage caiculateQ using Surface Area governs-
Disturbed race (a«esp o.04 See Sediment Dam Dimensions Betow
Requked SedimerH Storage (It~a 114.56
Temporary Type-8 Sediment Dam
Fktal Requkred Storege: 187.68 ft
OPTIONS
T1 rI •un o.• n .un
De ft : 3 3 Piece Type B Sediment Dam at
WidGt R : ti 5 outlet point: Ensure. Rock Silt
Le R : 12 15 Check Type$'s are used to
• r t satisfy requirements of Step 3;
crag atongi tit') : 16 225
OK `OK Sea Step T if installing Phis
y«yt,g~p,~mxt X72 --75 measurtiisrtot practical.
OK OK

STEP 1: Mput Project /nlbrrnadon 'items in red are inputs
Section Dacriptlon: 10+00 to 11+15
Constrtrctbn tkne County: L1eMand ~
Iess then 6 rnontla4 Y (Y/N)
HUYY7 N (Y/N) SR# 24J5
RighNLaR: LT (RULt)
Comributkp
RIW WMth: 15 feet
Lengtlr of Run X 115 feet
Dkshrrbed Arad = 0.04 saes
% Ditch Grade: 2.00 %
STt~ 2: DMeh Lhrer requtrartrsrr[r (/tNixe the Reprkad Llaar tab and mote reoornmenda0ions on plans.
STEP 3: Raeuarnsrrdsdapekq iloi Rook S8t Check 7ypa~BY (br vMockY carbo/ orNy1
SP~rg ° X44 / Z.2~ % ditch grade ].~4 k~
"Type -8 Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step 1.
`Type A Rock Silt Checks can be substituted to satisfy the storage requirements found in Step 5
STEP 4: Ertta-DralnapeArea: 0.04 saes See Sten 5
`Must equal or exceed the D~sfurbed Area found above
STEP S: /F DRAINAGEAREA < 3 Aua: !/» RUSLEZ b akM-rrNrte stongs (V^CRKs)
Regression ~~. C 549 Table 2-7 (Level fH !te! Manual)
RairdaN Factor, R 200 Figure 2-1
ErodibN'dy Factor, K 0_3 Table 2-2 orhttpl/sa7datamartnres.usda.gov/
Ditt:hline Sktpe, s 0.02000 ftAt
V= 540.22 tt'/ac/yr
Requied Storage Volume=21.39 ft Using 82% of Rainfall Factor-
see note in cell CS
~wr» from Tvoe A Rock Sik Checka
EnlerDitch Side Stine Gradient (H:Iq: 2 ;1
Enter Check Height 1.5 ft
Ama Behind Check 4.5 ft
Length of Ditch Behind Chedr: 75.00 ft
Storage Behhtd Cheek (assumes Bti% elileckrrc
Y1 -„ `27k`f~ft
Type A ~~ required: X GDOp, Place measure(s) on EC Plan
Total 73.13 ft
STEP 8: 8= DRIVt(1.4GEAREA > 3 Acre: Uae Surface Area Cafcu/sGOns to detenrdne ston6ge, A~35Q n
a, Determine the Peak Runoff Rate, po (Op = Quo (O~ for HQW)) USE Q10
t~~iA
RurtolF Coefident, C 0_5 Table 1-5,1-8,1-7
Tnne of Conamtratlon, k (minutes)
1 ShorMut Method 4 (A<4.BS)
Watershed Sbpe, S 3 %
4^ S minutes
2 Khplch Metlrod
Flow Path. L 350 feet 'see Module 1 Eq. 3
Watershed Stops, S 0.02 Rflt fee Module 1 Eq. 3
~~. 4' NIA minutes
Using a Return Pbtiod (T) ~ 10 yrs (25 /orHQYtq and a t= of 5.00 minutes,
the rahtfaN ktdBrtsify, t (rrVhr), cart be read /rom Appendor A a fire
NOAA xpDyds, lgQpy/hdSamrs.rpaa.govA7dadp~brp/nc~hbM
RakrfaN Intensity, i (irVltr) 7.19 irtlltr Apperrdnc A
Drair~ge Arm tip ~ o.a saes
Peals Rtrte of Runof, Q..CIA 0.14 cfs
b. Determine the Required Surface Area= 82.lili fl
c. Use Surface Area (A) to detarnine required VOL ME M Temporary Type-B Sediment Dam
Design Depth. 3 ~
Required VOLUME using the design depth: 187.88 f~
Cheek ro see H SseenartN Stomas Requtranwnrs aro mat:
Sediment sroraoe Required uasp 3soo rcaiac Storage calculated using Surface Area governs -:
Diswrnea nrea (a«es)- o.a See Sediment Dam Dimensions Below
Required SedNnent Sbrage (It')e 14256
Temporary Type-B Sediment Dam
Final Requked S~rage: 187.88 ft
OPTIONS
~•~ n •un a.~ n .un
~ ~ ft : 3 3 Place Type B Sediment Dam at
Width ft : 8 S outlet point
Ensure Rock Silt
L tlt ft : 12 15 .
Check Type-6's are used fo
e r WWth R : 4 satisfy requirements of Ste
3

y„My~
:218
OK
225
'QK p
.
See Ste
T'if installi
thi

stay 3rahcs Mee (tt~
O2K
- ~ p
ng
s
measure is not practical.

• i7EP f: Mput PtoJsetMfomtatlon 'items in red are inputs
Seetiorr Dsacriptlon: 11+15 TO 16+90
Constructlon time
less titan 6 months? Y (Y/N)
NQW7 N (Y/N)
RghflLelrr RT (RNLq
Corthibutirtg
RIW Width: 15 feet
Length of Run X 575 feet
Disturbed Aroa 0.20 saes
% Ditch Grade: 2.00 %
County: aerebnd ~
SR * 2435
STEP 2: Dl4d- L.brer requfrarrrerr/s: l/67Pss the Rsgrrhsd LJnsr tab ertd rtoka racomrrtertdedons on plans.
S7~ 3: Rseomrrterrdsd spselny 11oi Ruch SAt Clrsch Typ-8'a pbr rabeky atrdrW only)
Spacing = ~QQ / 2.000 % ditch Oracle = '~0 feet
'Type -B Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step 1.
'Type A Rock Silt Checks can be substituted to satisfy the storage requirements found in Step 5
S7EP4: ErNerDtaMageArsa: 0_2 arras See Sten 5
'Must equal or exceed the Disturbed Area found above
STEP 5: ~DRAINAGEAREA < J Acro: Use RUSLE2 ro dbtenMne storage (V~CRKs)
Regression Constant, C 549 Table 2-7 (Letrel 111 Ref Manual)
Raktf~ Factor, R 200 Fqure 2-1
ErodibilRy Factor, K 0_3 Table 2-2 orhltpJ/soi~datamartntos.usda.gov/
OiQGtlkte Sbpe, s 0.02000 RlR
Va 510.22 R'/aclyr
Required Storage Volums= 06.96 ft Using 82 % of Rainfall Factor-
see note in cell C5
Storage Iran Ttroe A Rock Sik Checks
Enter Ditch Side Sktpe Gradient (H:1~: 2 :1
En(er Check Heght 1.5 ft
Area Behind Check: 4.5 tiz
Length of DAch Behind Check 75.00 R
StoregsBehinelCheek(assumes ti5%efleclency): 73.13 ft; GOOO, Place measure{s) on EC Ptan
Type A Cheeks requhed: X 20
Too/ 146.25 R
STEP 6: IF DRAINAGE AREA > J Acre: Use Surface Anna Calculatlons to dehrrMne storage, A=435QP
s. Determine the Peak Rundf Rate. pP(t]p= Qre (Qa, for HQV1~) USE Q10
t]s=CW
Runoff CoelRdertt, C 0_5 Teb/e 1-5,1-6,1-7
Time d Cortrentralion, 4 (mktules)
1 Shortcut Mettod, 4 (A<4.tiS)
Watershed Sbpe, S 3 %
te= 5 minutes
Khpleh Method
Fknv Path, L 350 feet see Module 1 Eq. 3
Watershed Slope, S 0.02 WR sae Module 1 Eq. 3
Kirpich, 4= N/A minutes
Using a Return Pt3riod (T) 0710 yrs (251br HQW) and a t ~ o/ 5y0 minutes,
rite taat/eN trtlertsity, i (irt4tr), cart be read hurt Appendix A or the
NOAH , hdpJAMscrtws.rtoaa-govAtdao~tlsbrprnc_pHs-hbn!
RakrtaA kttensity, i fstRtr) 7.19 irtlhtr Appendbr A
Drainsge Area given as 0.2 saes
Peak Rate of RuraR, Gtr CIA 0.72 ds
b. Determine the Reqtrired Surface Area= 312.77 ft
c. Use Surface Area (A) b determine required L ME of Temporary Type-B Sediment Dam
Design Depth: 3 ~
Required VOLUME usktg the design depot: 938.30 ft3
Cheek to see M sedltnwtr 9taeye Re90irerttertb en ttnY.
BdkmM86wpe RequkW wkp 9EW ft3/a yt~°.ra~i~ cafcuia:ed uainr,I SurPaca Area S~oa~rr~~» -
DklurbedNea(acrea)• 030 $M@SUCti05knE +'3tl7a.Gtnlousti/n~B~atyW
Required Sedimerd Storage (It7= 712.81
Temporary Type-B Sediment Dam
Final Required Storage: 938.30 ft
OPTIONS
2:1(L:W) 3:1(L:IAg
De th ft : 3 3 Place Type B Sediment Dam at
Width ft : 13 11 outlet. point. Ensure Rock Sikt
L th (ft): 26 33 Check Type-B's are used to
weir Width ft : 4 4 satisfy requirements of Step 3.
yen77.~~1~''1 .1014 .1089
OK OK See Step 7 if installing this
vray sutfaea tw {a'- measure is not practical
OK OK

' f 6TEP 1: /opal Project hrlorrrratlorr 'items in red are inpu[s
Section Description: 11+15 TO 16+90
Canstructk[n time
less then 8 months? Y (Y/N)
HQWT N (Y/N)
RlghflLeR:
Contrib
tk LT (RdLt)
g
u
RtW YVidth:
15
teat
Lergtlt of Run X 575 feet
Disturbed Area = 0.20 acres
% Ditch Grade: 2.00 %
Counly: DevebNd ~
SR * 2435
STEP 2: OMcA Lirer : llOTrze Ute Regrd-sd Lkrer tab and noAe recornr-rertdaG"orta on plans.
STEP J: Rsoorrerrrrrdad spaeNq fiorRock SMt Check Type~Bb pbr tnalocity eonbol orNy)
SPecInO = X44 I 2.444 96 dRdt grade = ~ feet
'Type -8 Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step 1.
'Type A Rock Silt Checks can be substituted to satisfy the storage requirements found in Step 5
S7EP4: EMiarDrakrageA-sa: 0_2 atxes See Steo 5
'Must equal or exceed the Disturbed Area found above
STEP 5: lF DRAINAGE AREA < 3 Aere: Use RUSLEY to detanretne storage (V^CRICs)
Repession Constant C 549 Table 2-7 (Level 111 Ref ManuaQ
Rairifeq Factor', R 200 Fpure 2-1
ErodibBily Fatxor, K 0_3 Table 2-2orhttpl/sotkletamaR.nns.usda.gov/
Ditcligrte Slope. s 0.02000 Rllt
V= li40.Z2 tf'/ac/yr
Required Storage Volume= 106 96 ft Using $2 % of Rainfall Factor-
see note in cell CS
S(nraaa from Tvw A Rock Sgt Cheeks
Enter Dilch Side Sbpe Gradient (H.~VI: 2 :1
EnterChed[Heyht 1.5 ft
Area Behind Chedt: 4.5 RZ
Length MDitdt Behind Check 75.00 R
Storage Behind Check (assumes lt5% eAbchrrrcy): T3.13 R GO00, Place measures on EC Plan
Type A Checks regrrhed: X 2,0 ( )
.~~
Total 146.25 ftg
S7EP 6: IF DRAINAGE AREA > 3 Acre: Use Swlace Area Gkuiytions to deMnnine storage, A*43.4Q v
a. Determine the Peak Rurrotf Rate. QP(pP= Qtg (Q~ for HOW)) USE Q70
Qe~CiA
Rurmif Coefficient C 0_5 TattM 1-5, f-8,1-7
Time of Coricenbatlon, 4 (minutes)
1 Shortcut Method, 4 (A4.83)
Watershed Sktpe, S 3 %
L' S minutes
2 Klrpkh Method
Fknv Path, L 350 feet see Module 1 Eq. 3
Watershed Slope, S 0.02 ftAt *see Module 1 Eq. 3
Keplch, tc= NIA minutes
Using a Retum Period (T) W 10 yrs (25 for HQW) and a t, o- ®minutes,
the farnhw iMertsyTl: / (gYhr), Celr be read lion Apperrdbr A or the
NOAA arebsita, h!~l/hdS~mvs.noaa.90vAbsdpRi&brbnc_pfdshbM
Rainfall Intensify, i (kiRv) 7.19 iriRir Appendo[ A
Drmage Area given ~ 0.2 atlas
Peak Rate of RuraR, Qo ~CiA 0.72 cis
b. Detertnkre the Regained Surface Area= 312.71 R
c. Use Surface Area (A) to determine required VOL ME Temporary Type-B SedktteM Dam
Design Depth: 3 ~
Required VOLUME using the design depMi: 93&30 ft
Chxk to see N Ssdirrwrt Storage Ragslrenwrts aro met:
~sedinent srorage Required usig 3000 ft3rac Storage calculated using Surface.. Area governs -
~~ rues (~~)~ o.to See Sediment Oam Dimensions Below
Required Sedimem Storage (11'): 712.e1 -
Temporary Type•8 Sediment Dam
Final Regtrirod Storage: 938.30 ft3
OPTIONS
2:1(L:WJ 3:1(LaNJ
~ ~ ft ~
Width ft : 3
13 3
11 Place Type B Sedimont Dam a_t
outlet point. Ensure Rock Silt
L ft : 28 33 Check Type-B's are used to
We r ft : 4 4 satisfy requirements of Ste
3

erayetorape fa'i
1014
OK
:1089 -
OK p
.
See Ste
Tif installin
thi

VxtlySwracaau(a')
338
OK
3ti3
OK p
g
s
measure7snotpractical

~ STEP t: Mput Project /nlormedwr 'items in red are inputs
8eCti0rt Description: 16+90 TO 19+40
Construction tkne
lees than B monthsT Y (V/N)
NQW7 N (V/N)
RghtlLeft: RT (Rt/Lq
CoMributirtg
RAN WMtlt: 15 feel
Lergth of Run X 250 teat
Disturbed Area = 0.09 ales
% Ditch Grade: 2.00 %
County: Qeveland •
SRN 2435
STEP Z: Dlkh L4rer raquksrrrerrfs: l/EiNee Ute RsquNsd Lk-er tab and nob racormnenda(iwie On pbns.
STEP 3: ReconrrrrenoA9d spaefng 1br Rook SJk Check Type-B~s (1bi vslodgr cprpoJ qNy)
SPecetg = X44 / ? .Q44 % 9th = 1~0 feet
'Type -8 Checks wilt not be required for velocity control d the requied spacing is greater
than the Lengfh of Run shown in Step 1.
'Type A Rock Silt Checks can be substituted to satisfy the storage requirements found in Step 5
STEP 4: Ertte.OreMageArea: 0.09 acres r gee Steo 5
'Must equal or exceed the Disturbed Area found above
STEP 6: IF DRAINAGEAREA < 3 Acre: Use RUSLE2 to debmNne storage (V=CRKs)
Regressbn Constant, C 549 Table 2-7 (Level l/1 Ref Manual)
Rakrfa9 Factor, R 200 Fpure 2-1
Erodibility Facbr, K 0_3 Table 2-2 or hffpJ/soildatemart nrtx.usde.gov/
DitdWne Slope, s 0.02000 ftfR
~ 510.22 ft'/ac/yr
Requied Storege Volume^ .Si ft Using 82°6 of Rainfall Factor-
'see note in Celt CS
S4Qreae from Tvoe A Rock Slk Checks
Enter Drtch Side Slope Gradient (H: ~: 2 :1
Enter Chedt Height. 1.5 ft
Area Behind Check 4.5 ft2
Lengfh of i)ihYt Behind Check 75.00 ft
Storage BehMd Chock (assumes 85% e-IecrencyJ: 73.13 ft G

Type A Checks required: X
LO O00, Place measures on EC Plan
( )
Tobl 73.13 ft
STEP 6: ~ DRAINAGE AREA > 3 Acre: Use Surface Area Caku/adons to detsrrrrirre storage, A=435Qr
a. Determine the Peak Rurwft Rate, Qv (Qa = O10 (Qz i fcr HgVy)) USE O10
Qp=CIA
Runoff Coetftaent, C 0_5 Table 1-5,1-6,1-7
Time of Concentration, 4 (minutes)
1 Shortcut Method, ta(A<4.85)
Watershed Slope, S 3 %
4= 5 minutes
2 Klrpkh McUrod
Flow Path, L 350 feet "see Module i Eq. 3
Watershed Slope, S 0.02 ft/ft 'see Module 1 Eq. 3
IGrpk3t, te= N/A minutes
Using a Retum Ponod (T) of 10 yrs (28IbrHQNq and a t. d ®rnlnuby,
the rairtf~inferrsNy, I (auhr), can be read Irom Appertctnr A orthe
NOAH xabNb, hftpJrhdsc.rtws.rpaa.gotu~sdpld~Orhrnc~fds-html
RaktfaN IMenaily,l(irvty) 7.19 iNhr Appertda A
Drainage Arm pNen as 0.09 acres
Peak Rate of RurwR, Qo =CIA 0.32 cfs
b. Determine the Required Surface Area= 140.74 ftZ
c. Use Surface Area (A) ro determine required VOLUME of Temporary Type-B Sediment Dam
~~ ~P~: 3 t
Required VOLUME using the design deptrt: 422.23 ft
Chsdr ro s« a saa9menr storey. Requhamenta ere nnN:
iedtnent sroreye Requked using 3900 fl3/ac Storage calculated using Surface Area governs -
DishrrbedArea (a«es)= 0.08 See Sediment Dam Dimensions Below
Requhed SedMnent Storage (ft'')• 309.92
Temporary Type-B Sediment Dam
final Required Storage: 422.23 tt3
OPTIONS
7.1 h .IA/1 7.
De th ft : 3 3 Piece Type B Sediment Dam at
Width ft : 9 7 outlet point. Ensure Rock Silt
L th ft : 18 21 Check Type-$'s are used to
Weir Idth ft : 4 satisfy requirements o1 Sfep 3

9toraya HP)
486
OK
441
OK .

gee Step 7 if installing this
veray$~«e~t~ OK ~K +neasureisnotpractical

' t61EP 1: MprRProJectlnlor-natbn "items in red are inputs
Section DescAption: 16+g0 TO 19+40
Construction time
Iess tMn 8 months? Y (Y/N)
H/ZW7 N (Y/N)
RIghULaR: LT (RULt)
Cortbiblrting
itlyy Widdt: 15 feet
Lerptlt of Run X 250 feet
DlsWrbsd Area = 0.09 acres
% Ditelt Grade: 2.00 9i
Comity: OevelnrM ~
SR s 2455
STEP 2: Diadr Llrw requbemsMS: UEiae the RaquNsd Lbw tab and note recommendations on plans.
STEP 3: Reeomrrrand9d spaebg for Rock S/k CMck Typs•BY (br wloclty conbo/ only)
SDec+n9 = $44 / 2_444 % ditdt grade = ~4 feet
'Type -B Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step i.
'Type A Rock Silt Checks can be substituted to satisfy the storage requirements found in Step 5
STEP4: EMsrDreirtageArea: 0.09 acres See Steo 5
Must equal or exceed the Disturbed Area found above
S1EP 6: ~ DRAINAGE AREA < 3 Acts: Use RUSLE2 in dsiiarnN-re storage (y=CR/(s)
Regrossbn Constant, C 549 Table 2-7 (Level NI Ref Manual)
RakNeN Factor, R 200 Fpure 2-1
ErodibilftyFactar,K 0_5 Talzle2-2orhlM://soildatamartnras.usda.pov/
~~ Ste. a 0.02000 ftAt
V= lF4Q22 R'/ac/yr
Required Sboregs Vohrma= 51 ft3 lJSing 82 f of Rainfa{l Pactor-
see note in cell C5
Storeae from Tvtoe A Rock Sih Cheeks
Enter Ditcfr Side Slope ('iratiient (H: V): 2 :1
Enter Check Height 1.5 ft
Area Behind Check: 1.5 ft2
Length of Ditch Behind Chedr 75.00 ft
Storege AehMd Chock (assumes 8596 elFeelertcyJ. 73'13 ft GOOD, Place measures on EC Pian
Type A Checks required: X 1.0 f )
Togl 73.13 ft3
$TEP 8: IF DRAINAGEAREA > 3 Here: Use Surface Area Gku/atiorts to tleternlne storage, A=435Qo
a. Determine the Peale Rurrolf Rate, Qv (QP = Q10 (qz i for HOW)) USE O10
Oa~CiA
Rtstotf Coetftcient, C 0_5 Table 1-5,1.8,1-7
Time of Concerttratlon, 4 (miracles)
1 SM3rteut Method, t, (A<4.85)
Watershed Sbpe, S 3 %
4' a minutes
2 Klrpkh Metlrod
Fkwv Path, L 350 feet see Module 1 Eq. 3
watershed slope, s o.oz rtm sea Module 1 Eq. s
fQrpich, tc= NIA minutes
Using a Retum i'etpd (T) d 10 yrs (25 for HOW) and a t, Of 5_00 minutes,
the rainfall intensity, 1 (rMr~, cart be read Ivan Appertdnr A orthe
NOAA asbsiA9, hltplAYdsc.mvs.rtoaa.gowhdsr/~Ortync~.html
RaiMaN Intensity, i (iMtr) 7.19 iNhr Appends A
Drainage Area given as 0.09 acres
Peale Rate of Rtutolf, Q= ~W 0.32 cfs
b. Determine the Required Surface Area= 110.74 ft
a Use Surface Area (A) to determine regal Temporary Type-B Sediment Dam
Design Depth: 3 t
Raqulred VOLUME using the design depth: 42223 ft3
C6ack to sea g Sadmarrt Storage Raqulrsnwrts an met:
sediment storage Requred using 3600113/ac Storage calculated using Surface Area governs -
Dlsdrbadarea (acres)- 0.09 See Sediment Dam Dimensions Below
Required Sedknent SMrege (IC')' 309.92
Temporery Type-8 Sediment Dam
Final Requied Storage: 422.23 ft
OPTIONS
~•~ n •un e.~ n .ran
De ~ R ~ 3 = - ~3 ~ Place Type t3 Sediment (Jam at
Width ft : 9 7 nutlet poirt. Ensure Rock Silt
Len th k : 18 21 Check Type-6's are used to
Ws r Widtlt R : 4 4 satisfy t'egr3irentettts of Sfep 3

v«ay storaw f-Pl
486
OK
44f
OK .

See Step 7 if instaiting this
y~ Oyu Ara mzi ~. '.162
OK }47
OK measure is rrot practical.

` r STEP 1: Mput Project Mfomatlior- 'items in red are inputs
Section Description: 19+40 TO 28+96
Conatruetion thus
Nss than 6 months? Y (Y/NJ
HQIN7 N (Y/N)
RightlLeft: RT (Rt/Lt)
CorrMHtttktg
RIW Width: 15 feet
Lengtlt of Rtat X 956 feet
DbWrbed Area 0.33 acres
% DkWr Grade: 2.00 %
Courtly: ClevelarM ~
SR aK 2435
STEP 2: t9kM Lirer requfretrtsnts: Util2e trie AWtL/rad Lkar lab and noM reoomrnenda6nns on plans.
STEP 3: Raeomnwrdad sprelrtg Aoi/ioek SNt Cheek Type-87r (1br vsbe/h' eonpot only)
SPaCi<t0 = ~4 I Z~444 % ditch grade = 1~4 teal
"Type -8 Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step 1.
'Type A Rock Silt Checks can be substituted to satisfy the storage requirements found in Step 5
S7EP4: ErtferDrainageArtee: 0.33 apes See Steo 5
Must squat or exceed the Disturbed Area found above
S1EP 5: /F DRA/NAGEAREA e 3 Acre: Use RUSLE2 ib determine a[orage (yCR/(s)
Regression Constant, C 549 Table 2-7 (Carrel 111 Ref Manual)
R Fedor, R 200 Figure 2-1
Erodib8ily Fat3or, K 0_3 Table 2-2 orhtfpl/soifdatamartnns.usda.gov/
Dftchgne Slope, a 0.02000 ftAt
V= 540.22 ft'/eGyt
Required Storege Volume= 177.84 ft Using 82 ~ of Rainfall Factor-
see note in cell C5
Storage from Tvge A Rost ca Ctlecks
Enter Ddcft Side Slope Gradient (H: V): 2 :1
Enter Chedr Height. 1.5 ft
Area Behind Check: 4.5 ft
Length ~ Ddch Behind Check: 75.00 ft
Storage Behind Check (aswtnss 85% elilaelerrcyj: 73.13 ft GOOD, Place measures at EC Plan
Type A Clacks -equ/red: X 3.0 ( I
Toter 219.38 ft
STEP 8: IF DRA/NAGEAREA > 3 Acre: Use SuAsce Area CaMuNtlons to tJbtertrNrte storage, Ar438QP
e. Detemtine the Peak Runof- Rate, QP (QP= Qto (Qa, for HQW)) USE Q10
Qo=CiA
Runoff CoetTiciertt, C 0_5 Table 1-5,1-8,1-7
Time of Concentra0on, ~ (rtrirndes)
1 ShorOcut Methoal, t~ (A<4.85)
watershed sktpe, s 3 %
t~= 5 minutes
2 Kirpkh Method
Fktw Path, L 350 feet See Module 1 Ep. 3
Watershed Sktpe, S 0.02 ttlR See Module 1 Eq. 3
KtrPich, ta= N/A minutes
Using a Retum Period (T) of 10 yrs (25 ktrHQW) and a to of 5.00 minutes,
Ole raktlaF inlansily, i (kt?tr), cart be read hart Appertda A Dribs
NOAH ttrebsl69, hdpl/lgsc.nws.npga.gpwhdatypklsbrync_pMS.hhrN
RaiMaN intensity, I (ktRtr) 7.19 iMtr Appends A
Drairtape Area 0~ as 0.33 saes
Peak Rate of Rurtalf, Q. =CIA 1.19 efs
D. Determine the Required Surface Area= 516.06 ft
G Use Surface Area (A) to determine regal ME Temporry Type-B Sedknertt Dam
Desfgn Depth: 3 t
Required VOLUME usirq the design depth; 1548.19 ft°
'. Chedr to sss HSsdmerrt Storage Requkenronts ors rash ~~
Sediment storage Requvea using 3soo tryiac Storage caFculafed using Surface Area governs - i
OroM9rrbsd Ana (~t~)' 0.93 See Sediment Darn t)+rnencions Belaw
Repulred 3edlment Storage (}t')• 1166.19
Temporary Type-8 Sediment Dam
Find Required Storage: 1548.19 tt'
OPTIONS
2:1 /L•WI 3r1 n •un

De fh R : ~~ .3 ~ ,~.--~ Place Type B Sediment Dam at
WIdtl1 tt : 17 14 nutlet point
Ensure Rock Silt
Len th (ft : 34 42 .
Check Type-B's are used to
e r ~~ ft ' 4 4 satisfy requirements of Ste
3

Y.rMyatongeftt'i `
1734
OK
1764
OK p
.
See Step 7 if i
st
llin
thi

Ysisy Surfau Arr (rat}
OK
OK n
a
g
s
maasure is not practical.

` ' r' ,STEP 1: Mput P/g/aetMlomradon 'items in red are inputs
Seaton DeseAptlon: 19+40 TO 28+g6
CgrtaUtledort time
lase than 8 moneha4 Y (Y/N)
HpW7 N (Y/N)

Contribtrtktg
RNV WWdth: 15 feet
LertgM of Run X 956 feet
DlsWrbed Area = 0.33 acres
% Dkch Grede: 2.00 %
County: Qeve~ra t
SR 8 2435
STEP 2: Dltclr LMar regglrsnrentr t/tifze the RrmgWrsd Lkrar tab and note recormnerrda6iorts on plena.
STEP 3: Rscomr-enrNol speeJr-y ttx Rock SikChsek TypsB'S (lior relodty eorrkgl onM
SPednO' ~ / ~.QQQ % ditch Otade : ]¢Q feet
'Type -B Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step 1.
'Type A Rock Silt Checks can be substituted to sahsfy the storage requirements found in Step 5
S71cP4: Ente-DralnageAres: 0.33 acres r See Sten 5
'Must equal orexceed the Disturbed Area found above
STEP 5: IFDRAOHAGE AREA < 3 Acre: Use RUBLES M deternNrre storage (VkCRXSj
Regression Constant, C 549 Table 2-7 (Carrel tll Rat Manual)
RafnfaN Factor, R 200 Fpure 2-1
Erodibi~tFacbr,K 0_3 Tablet-2ahtfpl/soildatamartnres.usda.gov/
Ditchlfne Sbpe, a 0,02000 ~
W 840.22 ft'/acJyr
Required Storage Volunte^ 177.84 ft Using 82% of Rainfall Factor-
sae note in cell C5
Storage from Tvw A Rock Sik Gttecks
Enlar Ditch Side Sbpe Gradient (H:1~: 2 :1
Enter Check Height 1.5 ft
Anao Behk~d Check. 4.5 ft
Letrpfh of DiiCh Behind Check.' 75.00 ft
Storage Behnd Cheek (assume 88% efleelency). 73`13 ft GOOD, Place measures on EC Pian
Type A Checks required: X 3.0 ( )
Tote/ "219.38 ft
STEP 8: IF ORA/HAGEAREA > 3 Acn: Use Stslace An1a GMulatlorrs to dstarrNne storegs, A*135gp
a. Detemtine the Pelt Runoff Rafe. QP (QP = Qto (Qa for HQW)) USE 010
QP=CfA
Runoff CoeOiaent, C 0_5 Table 1-5,1-6,1-7
Time of Concerttratlort, k (minutes)
1 ShorteutMefhoq 4(A<4.8S)
Watershed Slope, S 396
to° 8 minutes
2 Kfrplch Metlrod
Flow Path, L 350 feet See Module 1 Eq. 3
Ware fatted Slope, S 0.02 ft/R see Module 1 Eq. 3
~~~. 4' N/A minutes
Using a Return Period (T) o/ f0 yrs (25 RxHQIM and a to of 5,00 ~~,
the rainfeN intensely, 1 (stHr~, tan be nsad from Appertdor A orthe
NOAA . AdplrlydmC.nws.rtpaa.gpv/h~r/prt~npFtc~s.htna
Rainfa9 Irrtenaily, i (iMv) 7.19 irtmr Appendnr A
Drainage Arm given as 0.35 acres
Peak Rafe d Runoff, Q, •CiA 1.18 cfa
b. Delennine the Requked Surface Area= 518.08 ft2
t~ Use Surface Area (A) to determine regal y~ Temporery Type-8 Sediment Dam
Design Deter: 3 ~
Requlrad VOLUME using the design depth: 1548.19 ft3
Check ro aw HSearmenr 8tw~ae /tequ/nrrrertt an met ..
Sediment Storage Required ueing 3600 fl3/ac Storage eafculalett using.$urtace Area gUVeRts
Diswrbed sea (acres). o.ao See Sedimenf Dam Aimenstons Below -
Requhed Sediment Storage (aq~ 1185.12 :
Temporary Type-B Sediment Dam
Final Required Storage: 1548.19 ft
OPTIONS
~ ~ R = 3 '3 Place. Type 8 Sediment Oam at
Widtlt ft : 17 14 outlet point Ensure Rock Sitt
Len ih Ifth 34 42 Check Type-B's are used to
err Width ft ' 4 4 satisfy requirements of Step 3

~~ ~
1734
OK
1764
OK .

See Step 7 if installin
thi

v.rKysurrae.Ar..(rt')
578
OK
588
pK g
s
measure es notpracticat.

- ,.
(STEP 1: MprR Project /nfonnatiort 'items in red are inputs
Section Description: 28+96 to 32+25
Constrta:tlort tfrrw County: Qeveland ~
ktes than 6 madhs~ Y (Y/N)
HQW7 N (YM) SRf 2435
RighflLett RT (RULt)
Conblbutirtg
RNY Width: 15 feet
Lsrtglh ttt Run X 329 feet
DisWtWdArea 0.11 acres
% Ditch Grade: 2.00 %
STEP?: Ol/c/- Liter /aqu!-errtsrNS: i/tirioe the RsquNed Litter lab and trots reo0rrtrnertdations on plans.
STEP 3: Rsrnatmwrdsy spacitg for Rost Sgl CheNr Ty-rs87s (!or velocity oortuW only)
SPeat9 = ~QQ / 2.000 % ditch g8d0 a j~0 hSet
'Type -B Checks will not be required for velocity control if the inquired spacing is greater
than the Length of Run shown in Step 1.
*Type A Rock Silt Checks can be substituted to satisfy the storage requirements round in Step 5
STEP 4: EiMa-DnlrtapeAraa: 0.11 asses r See Steo 5
'Must equal or exceed the Disturbed Area found above
STEP S: ~ DRANYAGE AREA < 3 Aae: Ute /iU$LE2 tp dsMmAMe atb/age (y=CltKs1
Table 2-7 (Letrel /ll R~ Manual)
Figure 2-1
Table 2-2 orhttpl/soidetamart nnx.usda.gov/
Using 82°! of Rainfai! Factor
sag note in ceN CS
$~era0e from Tvtte A Rock Silt CMcks
Enter Dtic/t Side Sbpe Gradient (H: V): 2 ;1
Enter Check Height 1.5 ft
Area Behind Check: 4.5 ft
Length ofDilcft BehMd Check: 75.00 ft
TCheclts Cheek (assumes 65% elleclencyj ~ -GOOD, Piece measure(s) on EC Plan
raquhtrd: X
TWiI 73.13 ft3
STEP 6:1F DRAINAGEAREA > 3 Acre: Use Surface Arw CaMu/etlorts m d8ta-/llirle storage, A~435QP
a. Detemtine Ote Peak Runoff Rate, QP (QP = Qto (Oa for HQW)) USE Q10
Qv~CiA
Runoff CoeRicient, C 0_5 Table 1-5,1-5,1-7
Time of Concentra0ort, tz (mirsAes)
1 ShorseutMetYwaS t;~(A<4.OS)
Watershed Sktpe, S 3 %
~' S minutes
Repression Catalan[, C 549
RaidaN Faf~or, R 200
ErodibilNy Factor, K 0.3
Ditchline Slope, s 0.02000 ftAl
1/~ 510.22 ft''/adyr
Required Stooge Volume= 1. 0 ~ft
2 Klrpkh McMod
Flow Path, L 350 feet 'see Module 1 Eq. 3
Watershed Sktpe, S 0.02 ftAt See Module 1 Eq. 3
KirPich, 4= N/A minutes
Using a Retum Harrod (T) of 10 yrs (25 for HQV1~ and a t, ~ 5.00 minutes,
~ 1 Y. l (~rJ, t~rr be read from Apperrdof A or~he
NOAH weAsiM. hNioJ/ItU9Gmns.noes.9ovAtdao/plfds/prMtc_plHs.html
RakdaX Intensfly, i (irNtr) 7.19 iNhr Appends A
Drttirtape Area given as 0.11 saes
Peak Rate of Runoff, Qe aCiA 0.10 ds
b. Determine the Required Surface Area= 172.02 ft
c. Use Surface Area (A) to determine required UME ftf Temporary Type-B Sediment Dam
Design Depth: ;
Required VOLUME using the design dep8t: 518.08 ft
Cheek ro asp HSMrnsnf Storage Repdrorrnnfs an inst.
iediment StoraBo Requkad using 3600Ir3lac - Storage calculatedusing Surtace Area. governs -
osturnea ores (a«ecp o.n See Sed)ment Dam Dimensions Below
Required Sadhneirt SMfege (Ir'). 107.65
Temporary Type-8 Sediment Dam
Final Required Storage: 516.06 ft
OPTIONS
7.1 n •IA/1
~ ~ tt : 3 3 Place Type B Sediment Dam at
~~ R ~ 10 8 outlet point Ensure Rock Silt
Lengtlt (R)~ 20 Z4 Check T
Ype-B's are used to
Weir Width A • 4 4 satisfy requirements of Step 3:
rttotaglla'- 600 576
OK -0K See Stap 7 if irtstafiitt
this
VxMy ttuAaa Atw In'I ~ ~K g
measure is not practical.

f
RNtI WMth: 15 feet
Lergtlr of Run X 329 feet
Disturbed Area = 0.11 ales
% Ditch Grade: 2.00 %
6TEP 1: /opal Project /n/ornretfon 'items in red are inputs
Section Description: 28+96 to 32+25
Cwtstruetbn tins County: i]areland ~
isss then 8 months? Y (V/N)
HQW~ N (y/N) SR/ 2435
RlghtMtt: LT (Rt/Lt)
CorrMbtrtlng
S7tBa 2: DNeh L.hrsr rsgetrerrrentr l/titre the Ragrdr~ad LlMf tab and rtot9 recornrrtwtdetrmq on plans.
S7>EP 3: Recornrnartdbdapet:lrrg 1brRoelr SAt Cheek Type$'s (1br vebeity trorrbol Doty)
SPaartg = ~Q / ~O~Q % ditch grade a: ~ feet
'Type -B Checks will not be required for velocity control if the required spacing is greater
than the Length of Run shown in Step 1.
*Type A Rock Silt Checks can be substituted to satisfy the storage requirements found in Step 5
S7EP~: FiMerDrattrapaAros: 0.11 eves See Sten 5
'Must equal or exceed the Disturbed Area found above
STEP 6: IF DRA/NAGEAREA < 3 Acre: Use RUSLE2 Ep etetenrNne stasge (V=CRICS)
Regressan Constant, C 549 Table 2-7 (Level 111 Ref Manual)
Rakrfa0 FaCly, R 200 Figure 2-1
ErodibiRty Factor, K 0_3 Table 2-2 orhfqulfsoNdatamartnn~.usda.gov/
Ditchline Slope, s 0.02000 RAt
V^ 810.22 ft'/ec/yr
Required Store Volume= 81. 1r3
~ Usin 82 % of Rainfall Factor-
see note in cell CS
Storeae frorn Tvoe A Rock SNt Cheelnr
EnlerDitch Side Sk>pe Gradient (H.•In: 2 :1
En(er Check Height 1.5 ft
Area Behind Check: 4.5 ft2
Length of Ditch Behind Check: 75.00 ft
Storage BehhM Check (essumea 65% efireciency) ~ ' ~ ft3
Type A Cheeks regeired: X g .,, :; ', ,a... GOOD, Place measure(s) on EC Plan
Tote/ 73.13 ft
STEP B: IF DRAINAGE AREA > 3 Here: Use Surlaee Area CaMutatbns to aktan-tirre storage, A;135Qo
a. Determine Ore Peak Runoff Rate, OP (Qo = t],o (Qz; fv HQ W)) USE Q10
Qo=CiA
Rurtoif Coefticiertt, C
Time of Concenhatan, ti (minutes)
1 ShortcutMethor~ 4(A4.63)
Watershed Slope, S
~a
2 Klrpkh Metltod
Fbw Path, L
Watershed Slope, S
w~, 4•
0_5 Table 1-5,1-8,1-7
3%
8 minutes
350 feet "see Module 1 Eq. 3
0.02 ftAt 'see Module 1 Eq. 3
N/A minutes
Using a Rehrm Asriod (T) o/ 10 yrs (25IbrHQNq and a tt of ®mfnutes,
Ole rairr/aN xKensOy; I (sNhr), Cart be read from Appisnd'or A ortlte
NOAA xebsife, htgoJ/Ixlsc.rtwS.nasagovAbsdplHdgynC_pds htna
RairrtaN Inler>sily, i (inAtr) 7.19 inAtr Appendbr A
Drektege Area given as O.t 1 eves
Peak Rate of Rurtoft, Qs =CIA OAO Cis
b. Oetemdne the Required Surface Area= 172.02 ft
c. Use Surface Area (A) to determMe required VOL ME of Temporary Type-B Sediment Din
Design Depth: 3 ~
Required VOLUME usktg the design depth: 516.06 ft
Check to ss~ rr Seramwrt Srwag~ Reprhsnwnts m mst:
sedinrant storage Requ6ee using aeoo It3/acStorage ealculated using Surface Area governs -
~~ ~~ la~y~). s.tt See Sediment Dam Dimensions Beiow
Required Sed'xneM Storage (R`J- r07.e3
Temporary Type-B SeWment Dam
Flnel Requred Storage: 518.08 ft
OPTIONS
2: f (L: IM 3:1 fL: N0
~ tt ~ 3 3 Place Type. B Sediment Dam at
~~ tt = 10 8 outlet point Ensure Rock Silt
L tt . ZO 24 Check Type-B's are used to
Weir Width tt : 4 4 satisfy requirements of Ste
3

morspe lh'1
600
OK
576
OK p
.
See Step T if installin
this
~ Sudeu Ares I~i OK OK g
measure is not practical:

RW fl@! NO. 2
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