20031322 Ver 1_COMPLETE FILE_20031021

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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P. E. Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
Asheville Regional Office
WATER QUALITY SECTION
November 6, 2003
Mr. Jim Fatland, Town Manager
Town of Tryon
Tryon Town Hall
Tryon, NC 28782
Subject: Addtjtgnal Information Request
401 Water Quality Certification
Application Number: 03-1322
Status of Application: On Hold
Harmon Field Streambank Stabilization (phase 1)
Polk County
Dear Mr. Fatland:
The Division of Water Quality's Asheville Regional Office performed a site visit on November 5, 2003. This
office has concerns about the use of streambank hardening in order to prevent further erosion. As the adjacent
banks appear to be stable, this office requests that alternative stabilization methods be evaluated. The existing
erosion is contained to an area immediately adjacent to an asphalt walking path where the banks are steeper than
the surrounding area and there are several discharge / hydrants located within the eroded area. The requested
alternatives should include (but not be limited to) the possibility of cutting flood plain benches and / or cutting
a less steep slope, the extensive use of woody / herbaceous vegetative cover, etc...
A plan, including a timeline for completion of the alternative analysis, should be submitted to my attention at
the letterhead address within 10 days of receipt of this request. Failure to provide the requested information
in a timely manner may result in the return of the submitted application.
Should you have any questions, please do not hesitate to contact me at [e-mail] or at 828-251-
6208.
Sincerely,
Kevin H. Barnett,
Environmental Chemist
cc: Mr. John Dorney, Wetlands / 401 Unit
US Army Corps of Engineers, Asheville Regulatory Office
Mr. Gerald Harbinson, USDA Natural Resources Conservation Service,
Post Office Box 236, Columbus, NC 28722
Mrs. Wanda Frazier, Asheville Regional Office (NC-DWQ
9'
r
59 Woodfin Place Asheville, North Carolina 28801 Telephone [phone] Fax [phone] Customer Service 1-877-623-6748
MEMORANDUM
TO: John Dorney Regional Contact: Barnett, Kevin
Non-Discharge Branch WQ Supervisor: Forrest Westall
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name Harmon Field Streambank stabilization
Project Number 03 1322
Recvd From APP
Received Date 10/21/03 Recvd By Region
Project Type streambank stabilization
County Polk
County2
Region Asheville
Certificates Stream Stream Impacts (ft.)
Permit Wetland Wetland Wetland Stream Class Acres Feet
Type Type Impact Score Index Prim. Supp. Basin Req. Req.
13 Strum ©Y O N 9-55-1-(l) I TR Fo.snc,,, F X50.00 250.00 F
Mitigation Wetland
MitigationType Type Acres Feet
Is Wetland Rating Sheet Attached? O Y ON Did you request more info? O Y ON
Have Project Changes/Conditions Been Discussed With Applicant? O Y O N
Is Mitigation required? O Y O N Recommendation: O Issue O Issue/Cond O Deny
Provided by Region: Latitude (ddmmss) 351330 Longitude (ddmmss) 821500
cc: Regional Office
Central Office Page Number 1
Triage Check List
Project Name: 9A"00 1:;,S0D S7?fA- Nk--
S,rAi6' 0,3/71o N DWQ#: 03 13 Z 2--
County: Poi.-k.-
To: 0 ARO Mike Parker
? FRO Ken Averitte
? MRO Alan Johnson
? RRO Steve Mitchell
From:
?' WaRO Tom Steffens
? WiRO Noelle Lutheran
? WSRO Daryl Lamb
Telephone : (919)
The file attached is being forwarded to Tour for your evaluation.
Please call if you need assistance.
Stream length impacted
Stream determination
? Wetland determination and distance to blue-line surface waters on USFW topo maps
? Minimization/avoidance issues
? Buffer Rules (Neuse, Tar-Pamlico, Catawba, Randleman)
? Pond fill
? Mitigation Ratios
? Ditching
? Are the stream and or wetland mitigation sites available and viable?
? Check drawings for accuracy
? Is the application consistent with pre-application meetings?
? Cumulative impact concern
Comments: 0?2
1 , - •

Wlea
Wa I LANUa 1'FU ! VrRVur
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OCT 2 1 2003
` WATER QUALITY SECTION
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action Id. 200 County Palk Quad S AT J TIN A
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Property owner: Town of Tryon, c/o Mr. Jim Fatland
Address: Tryon Town Hall, Tryon, NC 28782
Telephone No: [phone]
Zone: 44 UTM or LAT/LONG: North: 3898758 East: 613861
Size and Location of project (water body, road name/number, town, etc.): Harmon Field Streambank Stabilization
(phase I) in Tryon, Polk County, North Carolina
Description of Activity: Stabilize severely eroding streambanks along approx. 250 linear feet of the North
Pacolet River utilizing 4 "J Hook" vanes, riprap at bank toe, and plantings of woody vegetation.
Applicable Law: _X_ Section 404 (Clean Water Act, 33 U.S.C. 1344)
(check all that apply) Section 10 (River and Harbors Act of 1899)
Authorization: NW 13 Nationwide Permit Number
Your work is authorized by this Regional General (RGP) or Nationwide Permit (NWP) provided it is accomplished in
strict accordance with the attached conditions and your submitted plans. If your activity is subject to Section 404 (if
Section 404 block above is checked), before beginning work you must also receive a Section 401 water quality
certification from the N.C. Division of Environmental Management, telephone [phone]. For any activity within
the twenty coastal counties, before beginning work you must contact the N.C. Division of Coastal Management,
telephone [phone].
Please read and carefully comply with the attached conditions of the RGP or NWP. Any violation of the conditions of
the RGP or the NWP referenced above may subject the permittee to a stop work order, a restoration order, and/or
appropriate legal action.
This Department of the Army RGP or NWP verification does not relieve the permittee of the responsibility to obtain any
other required Federal, State, or local approvals/permits. The permittee may need to contact appropriate State and local
agencies before beginning work.
If there are any questions regarding this authorization or any of the conditions of the General Permit or Nationwide
Permit, please contact the Corps Regulatory Official specified below.
Date: October 7, 003
Corps Regulatory Official: Stephen D. Chapin
Expiration Date of Verification: October 7, 2005
Telephone No.: (828) 27.1-7980 x 5
cc: USDA - NRCS (Mr. Gerald Harbison)
CESAW Form 591
Revised July 1995
0
Office Use Only: Form Version May 2002
USAGE Action ID No.' DWQ No.
(it any parucuiar nem is not dppuc:avic to uus proJCLt, picabc r lLui nut tiVYLLI-d Jlc vl 1.4/2-1 .)
1. 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
[i]'401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested:
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 Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), complete
section VIII and check here: ? N/A
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: ? N/A
II. Applicant Information
1. Owner/Applicant Information
Name: Town of Tryon (Jim Fatland, Town Manager)
Mailing Address: Tryon Town Hall
Tryon NC 28782
Telephone Number: 828-859-6655 Fax Number: 828-859-6653
E-mail Address: [e-mail]
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: Gerald Harbinson, District Conservationist
Company Affiliation: USDA, Natural Resources Conservation Service
Mailing Address: P. O. Box 236
Columbus N.C.28722
Telephone Number: 828-894-8823 Fax Number: 828-894-2263
E-mail Address: [e-mail]
Page of 13

III. Project Information
2
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks 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: Harmon Field Streambank Stabilization (phase 1)
T.I.P. Project Number or State Project Number (NCDOT Only):
3. Property Identification Number (Tax PIN): P48-229
4. Location
County: Polk Nearest Town: Tryon
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers, landmarks, etc.): From Asheville, take I-26 east to
Go approximately 6 mile and turn right into Harmon Field Follow the paved road to the
parking area The site is to the left of the parking area.
5. Site coordinates, if available (UTM or Lat/Long):35 13' 30" / 82 15" 00"
(Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody.)
6. Property size (acres): 28 acres
7. Nearest body of water (stream/river/sound/ocean/lake): North Pacolet River
8. River Basin: Broad River
(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: Harmon Field is a public multi-use recreational park which
borders the N Pacolet River There are building structures located at some points along the
river. A paved walking trail is located adjacent to the river bank. This section of the N.
Page 6 of 13
i
Pacolet River is designated as trout waters. The site is located on an outside curve of the
river near the oval walking track A section of the riverbank is experiencing toe erosion and
upper bank failure Continued bank erosion will pose a threat to the walking trail. The
vegetation is grass with some weeds including kudzu and bamboo. There are no trees or
shurbs of any significance in the eroding section The other side of the river (which is owned
by other property owners) is stable and vegetated with large trees.
10. Describe the overall project in detail, including the type of equipment to be used: This
project proposes to install 4 "3 hook" rock vanes which will be tied into a rock bench to
protect the bank from further toe erosion and to provide a more stable flood prone area. (See
the attached "Construction Specification" for more detailed information. about the project.
A hydraulic excavator (trackhoe) with a hydraulic "thumb" will be used to handle and install
the rocks Appropriate trees and shrubs will be planted along the edge of the bank by hand.
11. Explain the purpose of the proposed work: This project is an initial phase of stream
restoration on the N Pacolet River at Harmon Field (see the attached background
information and conceptual solutions). Funding is available to restore the section of the
present site The two main purposes of this project are to (1) redirect erosive velocities away
from the streambank and (2) improve aquatic habitat
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 USACE 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.
No previous permits or projects are known to the present town officials.
V. Future Project Plans
Page 7 of 13
0 !!
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.
It is hoped that further stream restoration of the N. Pacolet River at Harmon Field will occur as
funding becomes available.
VI. Proposed Impacts to Waters of the United States/Waters 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. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must 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: As mentiond previously a
hydraulic track hoe will be operated in the river to construct the rock veins.
2. Individually list wetland impacts below: N/A
Wetland Impact
Site Number
(indicate on imp)
Type of Impact* Area of
Impact
(acres) Located within
100-yearFloodplain**
(yes/no) Distance to
Nearest Stream
(linear feet)
Type of Wetland***

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMMA Map Service Center at 1-800-358-9616, or
online at http://w-ww.feimgov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland; beaver pond,
Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only).
List the total acreage (estimated) of all existing wetlands on the property:
Total area of wetland impact proposed:
Page 8 of 13
r,
3. Individually list all intermittent and perennial stream impacts below:
Stream Impact
Site Number
(indicate on ma)
Type of Impact* Length of
Impact
(linear feet)
Stream Name** Average Width
of Stream
Before Impact Perennial or
Intermittent?
(please specify)
Project site j-hook rock veins ( 250 N. Pacolet River 50 feet I perennial

List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net losstgain),
stabilization activities (cement wall, rip-rap, crib wall, 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
Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at
Nvww.uses. aov. Several internet sites also allow direct download and printing of USGS maps (e.g., w-wAy.tooozone.coni,
www g aMuest.com, etc.).
Cumulative impacts (linear distance in feet) to all streams on site: 250 feet
4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.) below: N/A
Open Water Impact
Site Number
(indicate on ma)
Type of Impact* Area of
Impact
(acres) Name of Waterbod
y
(if applicable) Type of Waterbody
(lake, pond, estuary, sound
bay, ocean, etc.)

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
Pond Creation N/A
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.):
Size of watershed draining to pond: Expected pond surface area:
Page 9 of 13
VII. Impact Justification (Avoidance and Minimization)
Specifically 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.
Due to the high bank and the location of the paved walking trail the rock veins will need to be
constructed with the track hoe in the channel. It will enter and leave the channel from a site
upstream which has a lower bank.
VIII. 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
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 March 9, 2000, 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 NCWRP concurrence shall be placed on hold as
incomplete. An applicant may also choose to review the current guidelines for stream restoration
in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o.enr.state.nc.us/ncwetlands/strrnaide.html.
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 (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
Page 10 of 1,
is
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at
[phone] to determine availability and to request written approval of mitigation prior
to submittal of a PCN. For additional information regarding the application process for the
NCWRP, check the NCWRP website at http://hlo.enr.state.nc.us/wrp/index.htm. If use of
the NCWRP is proposed, please check the appropriate box on page three and provide the
following information: Not applicable
Amount of stream mitigation requested (linear feet):
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):
Amount of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state) funds or the use of public
(federal/state) land?
Yes ? No XX?
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 for environmental documentation.
Yes ? No ?
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
Page 11 of 13
t
Il
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
Yes ? No XX? If you answered "yes", provide the following
information:
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify )?
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.
Zone* Impact
(square feet) Multiplier Required
Nliti'on
1 3
2 1.5
Total
Gone 1 extends out 3U teet pe3penchcular trom near bank of channel; Lone .L extends an
additional 20 feet from the edgge of Zone 1.

XI.
XH.
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or. 0260.
N/A
Stormwater (required by DWQ)
Describe impervious acreage (both 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.
N/A
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.
N/A
Page 12 of 13

XM. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 211.0500) or any Buffer Rules?
Yes ? NoXX?
Is this an after-the-fact permit application?
Yes ? NoXX ?
XIV. 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-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
., yj/ d'
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 13 of 13
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CONSERVATION PLAN MAP USDA
Harmon Field USDA am
Natural Resources Conservation Service
Polk Soil & Water Conservation District Gerald Harbinson
28
Date: 08126/2003
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United States Natural
Department of Resources 121 Laurel Drive
Agriculture Conservation Rutherfordton, NC 28139
Service
DATE: August 22, 2003
SUBJECT: Stream Bank Stabilization
North Pacolet River Greenway Site
Polk County, North Carolina
FILE CODE: 210
TO: Gerald Harbinson, District Conservationist
Columbus, NC.
Drawings and construction specification for instream structures constructed of rock are enclosed.
The approximate spacing for J hook vanes is shown on the drawing. The J Hook Vane, is a deflective
structure installed pointing upstream, beginning at near bankfull sloping down to the streambed. In
this case, I suspect rock may have to begin about V below bankfull to make the top surface of vane 5
percent. The angle at which the vane points upstream from the bank shall be 20 degrees. The vane
should extend from the bankfull to approximately 1 /3 of bankfull width.
An armored toe of bank is recommended to help stabilize slope and also provide a bank full bench to
tie J Hooks into the stream bank. Some minor excavation at top of bank is recommended to
establish at least 5' of width for the bank full bench. See drawings for.details.
After J hook vanes and bank full bench are installed, as much permanent woody vegetation as
practical should be established on the stream bank and along top of bank.
If the owners decide to make this repair to stream bank, no work, which is covered by this
specification, shall be performed until the Army Corp of Engineers has issued a Section 404 permit
and the Division of Water Quality has issued a Section 401 certification (if required).
If you have any questions, please call.
SamuerC. Bingham
Civil Engineer
Enclosures
Cc: Alan Walker, w attachments
formerly the Soil Conservation Service, works
hand-in-hand with the American people to
conserve natural resources on pnvate lands. AN EQUAL OPPORTUNrrY EMPLOYER
v
Light
li ht
W t"
Met r
App ox, 8'
rorl Ban fQ
Pip Rap Toe
See Detail Drawing
Approx. 7\5'

Sod Field
Sod Field

North Pacolet River Greenway
Polk County, North Carolina
J Hook Vanes
ri
U.S. DEPARTMENT OF AGRICULTURE
NATURAL RESOURCES CONSERVA N SE VICE
Date
Designed SCB 11.01 Approved sy
7tle
Dra" SCB 11.01
rNe
Traced F eet No. Drawing File Name:
Dheceed Harmon5.dwg
pprox. 18'
prox. 52'
-o- Power Pole
Fenceline
Evergreen Tree
Hardwood Tree
Shurb
50 0 50 100 150
Lm N - --1
Scale: 1' = 50'

Excavate 8' Bench at top of
Rip Rap, Slope at 8:1 or flatter,
Use Earth to fill between Rocks
Rip Rap Size - Approx, 80 cu f t
size rock along toe of bank
For example, 8'x3'x3,3,
Odd shaped rocks not suitable
for J Hook shall be used to
armor toe of bank
1 or flatter
loth under Rock along
Slope, Approx, 8,5' Width
Length of J Hook

S
t
V
CONSTRUCTION -SPECIFICATION
INSTREAM STRUCTURES CONSTRUCTED OF ROCK
1) SCOPE
This specification covers the installation of Rock Vanes, J-Hooks, and Cross Vanes at locations
as shown on the construction plans and as directed by the engineer.
2) PURPOSE
• Redirect erosive velocities away from streambanks
• Provide aquatic habitat
• Cross Vanes may be used for grade control
3) DEFINITIONS
ROCK VANE - A deflective structure installed pointing upstream, beginning at bankfull sloping
down to the streambed. The angle at which the vane points upstream from the
bank shall be 20-30 degrees. The slope of the top surface of the vane will be 5-7
percent. The vane should extend from the bank to approximately I/3 of channel
width. (See fig. 1)
J-HOOK - A rock vane with a hooked portion on the streambed. The hook provides
additional habitat. (See fig. 2)
CROSS VANE - A rock vane from both sides of the stream with a connecting bar on the
streambed. If this structure is used for grade control, the existing streambed
elevation may be increased by no more than 10 percent of bankfull, unless a
greater increase is provided for in the approved design. (See fig. 3)
ENGINEER - The USDA-NRCS and/or SWCD person(s) who have appropriate construction
approval authority for Practice Standard 580, Streambank and Shoreline
Protection for the specific size and type of structure.
STREAMBANK - portions of intermittent or perennial streambanks which are eroding at an
accelerated rate due to the effects of stream flow near banks without adequate
vegetative cover and supporting riparian area.
BANKFULL - The stream flow level at which the stream channel is formed and maintained.
The term "bankfiill" should not be confused with "the top of the bank". Persons
who have received training in Natural Stream Channel evaluation shall identify
the bankfull elevation.
THALWEG -
USDA-NRCS
North Carolina
The deepest part of the channel where the highest channel velocities occur.
page 1 of 5
Rock Structures
August 1999
+ 4?
l
4) PLANNING CONSIDERATIONS
This practice should be applied as a part of a total Natural Stream Channel Restoration design.
These structures are not intended to be a total solution to the streambank erosion problem in
themselves. They are to be used as a component of a total streambank management plan, which
may require a number of associated practices. In some cases modification of the stream
dimension, pattern and profile may be required before structures are installed. The use of rock
structures without considering the stable dimension, pattern, and profile of the stream will most
likely result in failure.
5) PERMITTING
No work, which is covered by this specification, shall be performed until the Army Corp of
Engineers has issued a Section 404 permit and the Division of Water Quality has issued a
Section 401 certification (if required). The final construction plans and specifications must be
prepared and approved prior to the beginning of construction.
6) EQUIPMENT
• A hydraulic excavator (trackhoe) with a hydraulic "thumb" shall be used to handle and install
the rocks
• All required safety equipment shall be available during construction. Safety equipment
includes but is not limited to hard hats, gloves, and eye and hearing protection.
7) SUPERVISION
The engineer must be on-site to supervise and inspect each operation as it is performed. No
work, which is covered by this specification, shall be performed in the absence of the engineer
except as approved by the engineer. The work shall be conducted as directed by the engineer.
The engineer shall be notified a minimum of 24 hours before installation is performed.
8) INSTALLATION
• The engineer shall place a marker at the point where the last rock of the structure will meet
the streambed. This marker shall be set at a point, which represents the planned angle from
bankfull and,the planned slope of the structure. The engineer should check to see if this point
is approximately 1/3 of the total channel width.
• Holes for footer rocks shall be excavated in the streambed at the location, elevation and
orientation as directed by the engineer.
• A footer rock of the size and shape as directed by the engineer shall be installed in the hole.
Multiple footer rocks may be required, at the discretion of the engineer or as provided for in
the approved plan.
• A structure rock of the size and shape as directed by the engineer shall be installed on top of
the footer rock.
USDA-NRCS page 2 of 5 Rock Structures
North Carolina August 1999
1 = ,A
• Streambed material will be removed as directed by the engineer if it is required to move the
thalweg of the stream to the point of the structure.
• Streambed material shall be placed on the upstream side of the structure near the bank.
• Equipment shall be operated from the streambank whenever possible.
• Equipment which appears to be leaking fluids shall be removed to a safe site away from the
stream corridor until it is repaired and confirmed that no leaks exist.
9) ASSOCIATED PRACTICES
• ROOT WADS and related instream structures planned as an integral component of the
natural stream channel restoration design.
• CRITICAL AREA SEEDING shall be applied on all disturbed areas.
• WOODY VEGETATION shall be established on the sloped bank above bainkfull and on top
of the bank.
• RIPARIAN FOREST BUFFER should be considered.
• LIVESTOCK EXCLUSION shall be installed if livestock are pastured in the area.
10) FIGURES
Figures attached to this specification illustrate the placement and orientation of the various
instream rock structures which may be included in the plan. Figures are as follows:
Figure 1 - Rock Vane
Figure 2 - J Hook
Figure 3 - Cross Vane
11) ITEMS OF WORK
Items of work to be performed in conformance with this specification and the construction
details therefore are: ur?? /,f n,L?
a. Construct stream stabilization measures at the rk site on Cfe& at JC
as?in A i L County at the locations as shown on the construction drawings and
d by the Engineer.
b. Ingress and egress of equipment and materials shall be only at locations and through routes
as approved by the Engineer.
c. Provide all equipment, tools, materials and labor required to install -Rock Vane(s)
which will require approximately rocks.
d. Provide all equipment, tools, materials and labor required to install ?. J Hook(s) which
will require approximately t 5b rocks. 2 y 55, "f x L1 ')(;Z I
Ayr* loo { on Ay-K--
USDA-NRCS page 3 of 5 Rock Structures
North Carolina August 1999
ctV
70
1
Angle -7-0
(in degrees)
J Hook
Plan View
Slope
(in percent)
-T
J Hook
Cross Section
Figure 2
(after Rosgen)
Angle
(in degrees)
. _ i
Slope
QJ (in percent)--
,
i ?? ` ,? Cross Vane
Cross Section
Cross Vane
Plan View
Figure 3
(after Rosgen)
USDA-NRCS page 5 of 5 Rock Structures
North Carolina August 1999
y
IL. SCOPE
CONSTRUCTION SPECIFICATION
FABRIC FILTER CLOTH
This work shall consist of furnishing all materials, equipment and
labor necessary for the installation of geotextile fabric filter
cloth under rock riprap and as a load stabilizer under surfacing
materials on roadbeds and other heavy use areas.
2. MATERIALS
Fabric filter cloth shall be manufactured from synthetic long chain
or continuous polymeric filaments or yarns such as polypropylene,
polyethylene, polyester, polyamide, or polyvinyl idene-chloride. The
fabric filter cloth shall. be formed into a stable network of
filaments or yarns that retain their relative position to each
other, are inert to commonly encountered chemicals, and are
resistant to ultraviolet light exposure, heat, hydrocarbons, mildew,
rodents and insects. The fabric filter cloth shall be free of any
chemical treatment or coating that might significantly reduce its
permeability and shall have no flaws or defects that would
significantly alter its physical properties.
Fabric filter cloth shall be of the. non-woven type and shall conform
to the physical properties listed in,Table 1, based on the average
roll minimum value. Non-woven fabric filter cloth shall be
manufactured from randomly oriented fibers bonded together by the.
needle punched process. ,
Prior to installation of any fabric filter cloth, the Contractor
shall furnish the Contracting Officer the following information:
(1) Name of product and manufacturer.
(2) Product description, chemical composition, and copies of
typical laboratory test values.
(3) Statement of compliance attesting that the fabric filter
cloth meets the chemical, physical, and manufacturing
requirements stated in this specification-
(4) Signature of legally authorized official attesting to
validity of information provided.
4. SHIPMENT AND STORAGE
The fabric filter cloth shall be supplied in rolls wrapped with a
protective covering to keep out mud, dirt, dust, debris, and direct
sunlight. Each roll of fabric filter cloth shall be clearly marked
to identify the brand, type and the individual production run.
NRCS-NC (Page 1 of 3) FABRIC FILTER CLOTH-------
AREA 1 MARCH 1995
? 1 1 1 , y
l -
5
7.
PLACEMENT
The fabric filter cloth shall be placed on the approved prepared
surface at the locations and in accordance with the details shown on
the drawings. The fabric shall be unrolled along the placement area
and loosely laid (not stretched) in such a manner that it will
conform to the surface irregularities when the stone or other
material is placed on it. No cuts will be permitted in the fabric
panel unless otherwise specified. The panel may be folded and
overlapped to permit proper placement in the designated areas.
The orientation of the width and length of the fabric panels shall
be as shown on the drawings. The fabric length shall be placed
parallel to the direction of water flow unless otherwise indicated
on the drawings. The overlaps of panels and end roll details shall
be as specified. The minimum overlap shall be 18 inches. '
Securing staples shall be placed along the edge of the panel and at
abrupt changes in contour to adequately secure the fabric filter
cloth to the soil surface. At overlaps, securing staples shall be
inserted through both layers along a line through the approximate
midpoint of the overlap. Securing pins shall be placed along a line
approximately two inches in from the edge of the outer limits of the
completed filter cloth area at intervals not greater than 12 feet.
Additional staples shall be installed as necessary to prevent any
slippage of the fabric, regardless of location. Staples shall be
machine made of No. 11 gauge or larger new steel wire formed into a
"U" shape. The size when formed shall not be less than 6 inches in
length with a throat of not less than 1 inch in width. Staples
normally used for securing- erosion control netting may be acceptable
if approved by the engineer prior to installation.
Rock riprap and other surfacing material shall be placed in a manner
that prevents damage to the fabric filter cloth. In no case will
riprap be dropped on uncovered material from a height greater than
three feet.
ITEMS OF WORK AND CONSTRUCTION DETAILS
Items of work to be performed in conformance with this specification
and the construction details therefor are:
a. Filter Fabric
(1) This item shall consist of furnishing and installing the
non-woven fabric filter cloth under rock riprap and under
crushed stone surfacing materials.
(2) Fabric filter cloth supplied shall be Polyfelt TS 700,
Mirafi 160N, QuLine Q70, TerraTex N06 or equivalent material
meeting the requirement of Table 1.
.MRCS.-?7C __(Page -2-of-31. FABRI.C..FILTER CLOTH
AREA 1 MARCH 1995

TABLE 1
REQUIREMENTS FOR NON-WOVEN FABRIC FILTER CLOTH
Test
Method
Requirements
Tensile Strength*
(pounds)
Bursting Strength*
(psi)
Elongation at
Failure (percent).
Puncture
(pounds)
Ultraviolet Light
(percent residual
tensile strength)
Apparent Opening
Size (AOS)
ASTM D-4632 180 lbs. Minimum
Grab Test .
ASTM D-3786 320 psi Minimum
Diaphragm Tester
ASTM D-4632 50o Minimum
Grab Test
ASTM D-4833 80 Pounds Minimum
ASTM D-4355 70 Percent Minimum
150. hours
exposure
ASTM D-4751 No larger than the
openings in a US
Standard Sieve No.40
Permittivity ASTM D-4491 0.70 Minimum
(1/seconds)
*Minimum average roll value - weakest principal direction.
NRCS-ZTC .--. .. .. __- (Page_ _.cz .. }..._- _--- . ..---FABRIC. FILTER CLOTH. _
AREA 1 MARCH 1995
03,'28!2001 18:36 FAY 828 452 702'_ L!SDA \AT RESOURES
Harmon Melds Site
North Facolet River
Folk County
Background. Information
North Pacolei River is a tributary of the Upper Broad River Basin. The North Pacolet River has
problems scattered up and down its length associated with streambank erosion. The excessive
streambank erosion in this stream is typical of a stream that is entrenched and can no longer reach
its historic floodplain. This stream appears to have been straightened years ago. Straightening this
stream decreased stream length, increased stream slope and led to the entrenchment currently
associated with this stream. The typical stream one would expect to find in this valley type, would be
a meandering stream made up of riffles and pools. This stream would have a water slope of less than
1 percent and would probably have well defined point bars on the inside of the meanders. This
stream would typically reach the bankfuIl flow every 1.3 -1-5 years. This storm event w:)uld :;ace
seater flour at or near the top of the low bank. Storm events or flows greater than the 1.3-1.5 year
storm would spill over onto tho floodplain of the stream. This type of stream would be classified as a
"Type C" stream. North Pacclet River was more than likely a "Type C" stream many years ago,
however due to changes in the watershed this stream is now a "Type P'' stream. Streams or this type
can no longer reach their historic floodplain during storms associated with bankfuil. Therefore
higher velocity flows ar-- contained in the stream channel. The low bank to bankful': height ratio is
greater than 1.2:1. This results in excessive erosion of the streumbanks and excessive amounts of
sediment being delivered directly into the stream. Streams of this type are trying to return to their
original stream type by widening themselves to develop a floodpror.e area at a lower clevation.
Conceptual Solutions
There are four priorities to coasider when undertaking a stream restoratioa/stal Utition project. (1)
Construct the proffer stream type in order to reconnect the strearn to its historic floodplain, (2)
Manually assist the stream to develop a floodprone area at a lower elevation so the stream can
maintain its proper pattern, profile, and dimension. (3) Convert the stream to a different stream type
at the existing elevation in order to maintain stability, (4) .Leave the stream alone and let nature take
it course so the stream can correct itself
A priority (1) restoration is the most desirable, howeycr with this stream, property lines, and
differences in elevation we have riot included this Option. as an alternative.
A priority (2) restoration(stsrbilization can be accomplished for this stream. This would involve
establishing a "Type C" stream the existing clcvatioa. The new "Type C" stream would have a
fioodprone area developed at a lower elevation. This would involve removing material front the
streambauks and lowering the lose bank to bankfull heiglit ratio to bctwccn 1-1.2:1. Therefore with
storm events greater than 1.5 year return interval the stream would spill over onto the new
floodplain where the velocities would be decreased and the stress oa the streambanks reduced. Sonic
structures such as rocs: vanes, root wads, and lea vanes would be needed to develop the proper
dimension, pattern, and profile for this stream type. Due to the width of the f7codprone area needed
for the entrenchment ratio Of O stable stream at this iower elevation and the building constraints we
have not provided a conceptual design for this priority.
A priority (3) restoratiou`stawlization can also be accomplished for this strearr.. This woulC involve
converting this stream to a "Type Be" stream at the existing elevation. This type of conversion would
require more in-stream structures such as cross-vanes, rock vanes, acrd log vanes. Some earthwork
would also need to be done ou the stream barks to establish the proper dimension, pattern. profile
and stable streambank5 for this stream type. We have included a conceptual drawing of this type of
restoration as a model. A complete design and other information could be developed when a
restoration priority is decided upon.
Q002
03,'28%2001 18:87 FAY 828 452 7031 USDA NAT RESOURES
,' ,` ?t
Nt4TERIALS
J-HOOK ROCK VANES & CROSS VANES
THESE ROCKS SHOULD BE APPROXIMATELY 4'X Z' X V Lv SIZE. THESE ROCKS WILL
WEIGHT APPROXI.1'IATELY 1500 LBS. EACH. THESE ROCKS SHOULD BE ANGULAR
SHAPED AND AS FLAT AS POSSIBLE ALONG THE LONGEST SME OF THE ROCK.
The cost estimates on this project were based on preliminary survey data collected by local Soil and
Water Conservation District personnel along with NRCS. Restoring this section of stream will
greatly decrease the amount of sediment leaving this strewn and entering North Pacclet River.
Other benefits to this stream will include a lower water temperature due to the development of a
forested riparian buffer along the stream to provide shade, improved water quality, and improved
aquatic habitat.
Z004
03.'28/2001 16:35 F.11 828 452 7031
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USDA, NATURAL RESOURCES CONSERVATION SERVICE
Courthouse Annex
P. O. Box 236, Columbus, N.C. 28722
[phone]
October 15, 2003
Division of Water Quality
401/Wetlands Unit
1650 Mail Service Center
Raleigh, NC 27699-1650
Dear Sir,
WETLANDS 1401 GROUP
OCT 2 1 2003
WATER QUALITY SECTION
Enclosed are three copies of the Pre-Construction Notification Application Form,
and plans and specifications of a stream enhancement bank stabilization project on
the N. Pacolet River in Tryon, NC. Also attached is a copy of the US COE General
Permit Verification for this project.
Thank you for your attention.
Sincerely,
Gerald Harbinson
District Conservationist
WETLANDS 1401 GROLIP
4 i
OCT 2 1 2003
?` ,? 9 13 2 2 WATER QUALITY SECTION
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action Id. 200111232 County Polk Quad SALl TDA
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Property owner: Town of Tryon, c/o Mr. Jim Fatland
Address: Tryon Town Hall, Tryon, NC 28782
Telephone No: [phone]
Zone: 44 UTM or LAT/LONG: North: 3898758 East: 613861
Size and Location of project (water body, road name/number, town, etc.): Harmon Field Streambank Stabilization
(phase 1) in Tryon, Polk County, North Carolina
Description of Activity: Stabilize severely eroding streambanks along approx. 250 linear feet of the North
Pacolet River utilizing 4 "J Hook" vanes, riprap at bank toe, and plantings of woody vegetation.
Applicable Law: _X Section 404 (Clean Water Act, 33 U.S.C. 1344)
(check all that apply) Section 10 (River and Harbors Act of 1899)
Authorization: NW 13 Nationwide Permit Number
Your work is authorized by this Regional General (RGP) or Nationwide Permit (NWP) provided it is accomplished in
strict accordance with the attached conditions and your submitted plans. If your activity is subject to Section 404 (if
Section 404 block above is checked), before beginning work you must also receive a Section 401 water quality
certification from the N.C. Division of Environmental Management, telephone [phone]. For any activity within
the twenty coastal counties, before beginning work you must contact the N.C. Division of Coastal Management,
telephone [phone].
Please read and carefully comply with the attached conditions of the RGP or NWT. Any violation of the conditions of
the RGP or the NWP referenced above may subject the permittee to a stop work order, a restoration order, and/or
appropriate legal action.
This Department of the Army RGP or NWP verification does not relieve the permittee of the responsibility to obtain any
other required Federal, State, or local approvals/permits. The permittee may need to contact appropriate State and local
agencies before beginning work.
If there are any questions regarding this authorization or any of the conditions of the General Permit or Nationwide
Permit, please contact the Corps Regulatory Official specified below.
Date: October 7, 2063
Corps Regulatory Official: Stephen D. Chapin
Expiration Date of Verification: October 7, 2005
Telephone No.: [phone] x 5
cc: USDA - MRCS (Mr. Gerald Harbison)
CESAW Form 591
Revised July 1995
?
g i3 , i $
Office Use Only' Form Version ivlay 2002
USAGE Action ID No.' DWQ No.
/TD -...........a ,...l..r.;tom ;o .._t OTT?IMtI?P to thic TrniPrt nIPACP PntAr "Nnt Anniicnhle" or "NIA"_)

1. 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
[f401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested:
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 Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), complete
section VIII and check here: ? N/A
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: ? N/A
H. Applicant Information
1. Owner/Applicant Information
Name: Town of Tryon (Jim Fatland Town Manager)
Mailing Address: Tryon Town Hall
Tryon NC 28782 ---
Telephone Number: 828-859-6655 Fax Number: 828-859-6653
E-mail Address: -jd@ti:yon-nc.com
2. Agent/Consultant Information (A signed and (fated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Gerald Harbinson, District Conservationist
Company Affiliation: USDA, Natural Resources Conservation Service
Mailing Address: P. O. Box 236
Columbus N.C.28722
Telephone Number: 828-894-8823 Fax Number: 828-894-2263
E-mail Address: [e-mail]
Page 5 of 13

M. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks 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: Harmon Field Streambank Stabilization (phase 1)
2. T.I.P. Project Number or State Project Number (NCDOT Only):
3. Property Identification Number (Tax PIN): P48-229
4. Location
County: Polk Nearest Town: Tryon
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers, landmarks, etc.): From Asheville, take I-26 east to
Tryon exit turn right on Hwy 108 towards Tryon Turn right on SR 1121 (Hannon Field Rd).
Go approximately 6 mile and turn right into Harmon Field. Follow the paved road to the
parking area The site is to the left of the parking area
5. Site coordinates, if available (UT\d or Lat/Long):35 13' 30" / 82 15" 00"
(Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody.)
6. Property size (acres): 28
7. Nearest body of water (stream/river/sound/ocean/lake): North Pacolet River
8. River Basin: Broad River
(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.ne.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: Harmon Field is a public multi-use recreational park which
borders the N Pacolet River There are building structures located at some points along the
river. A paved walking trail is located adjacent to the river bank. This section of the N.
Page 6 of 13
t
Pacolet River is designated as trout waters. The site is located on an outside curve of the
river near the oval walking track A section of the riverbank is experiencing toe erosion and
upper bank failure Continued bank erosion will pose a threat to the walking trail. The
vegetation is glass with some weeds including kudzu and bamboo. There are no trees or
shurbs of any significance in the eroding section The other side of the river (which is owned
by other property owners) is stable and vegetated with large trees.
10. Describe the overall project in detail, including the type of equipment to be used: This
project proposes to install 4 "J hook" rock vanes which will be tied into a rock bench to
protect the bank from further toe erosion and to provide a more stable flood prone area. (See
the attached "Construction Specification" for more detailed information. about the project.)
A hydraulic excavator (trackhoe) with a hvdraulic "thumb" will be used to handle and install
the rocks Appropriate trees and shrubs will be planted along the edge of the bank by hand.
11. Explain the purpose of the proposed work: This project is an initial phase of stream
restoration on the N Pacolet River at Harmon Field (see the attached background
information and conceptual solutions). Funding is available to restore the section of the
present site The two main purposes of this project are to (1) redirect erosive velocities away
from the streambank and (2) improve aquatic habitat
N. 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 USACE 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.
No previous permits or projects are known to the present town officials.
V. Future Project Plans
Page 7 of 13

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.
It is hoped that further stream restoration of the N. Pacolet River at Harmon Field will occur as
funding becomes available.
VI. Proposed Impacts to Waters of the United States/Waters 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. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must 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: As mentiond previously a
hydraulic track hoe will be operated in the river to construct the rock veins.
2. Individually list wetland impacts below: N/A
Wetland Impact
Site Number
(indicate on ma)
Type of Impact* Area of
Impact
(acres) Located within
100-vearFloodplain**
(yes/no) Distance to
Nearest Stream
(linear feet)
Type of Wetland***

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, f 1,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or
online at htt1)://w1vw.fema.aov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond;
Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only).
List the total acreage (estimated) of all existing wetlands on the property:
Total area of wetland impact proposed:
Page 8 of 13
ty
3. Individually list all intermittent and perennial stream impacts below:
Stream Impact
Site Number
(indicate on ma)
Type of Impact* Length of
Impact
(linear feet)
Stream Name** Average Width
of Stream
Before Impact Perennial or
Intermittent?
(please specify)
Project site j-hook rock veins 250 N. Pacolet River 50 feet perennial

List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain),
stabilization activities (cement wall, rip-rap, crib wall, 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.
Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at
ww1'V.us2s.2ov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com,
wtivlv.mapquest.com, etc.).
Cumulative impacts (linear distance in feet) to all streams on site: 250 feet
4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.) below: N/A
Open Water Impact
Site Number
(indicate on ma)
Type of Impact* Area of
Impact
(acres) Name Waterbody
(if applicable) e) Type of Waterbody
(lake, pond, estuary, sound
bay, ocean, etc.)

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
Pond Creation N/A
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.):
Size of watershed draining to pond: Expected pond surface area:
Page 9 of 13
I
1
VII. Impact Justification (Avoidance and Minimization)
Specifically 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.
Due to the high bank and the location of the paved walking trail, the rock veins will need to be
constructed with the track hoe in the channel. It will enter and leave the channel from a site
upstream which has a lower bank.
VIII. 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
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 March 9, 2000, 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 NCWRP concurrence shall be placed on hold as
incomplete. An applicant may also choose to review the current guidelines for stream restoration
in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at
htti2://h2o.enr.state,nc.us/ncwetlands//stnn2ide.html.
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 (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
Page 10 of 13

description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at
[phone] to determine availability and to request written approval of mitigation prior
to submittal of a PCN. For additional information regarding the application process for the
NCWRP, check the NCWRP website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of
the NCWRP is proposed, please check the appropriate box on page three and provide the
following information: Not applicable
Amount of stream mitigation requested (linear feet):
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):
Amount of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
TX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state) funds or the use of public
(federal/state) land?
Yes ? No XX?
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 for environmental documentation.
Yes ? No ?
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
Page 11 of 13
i
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify )?
Yes ? No XX? If you answered "yes", provide the following
information:
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.
Zone* (s Impct are feet) Multiplier Required
1 3
2 1.5
Total
Lone 1 extends out 30 feet perpendicular from near bank of cilannel; Gone L exfenas an
additional 20 feet from the edge of Zone 1.
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or .0260.
XI. Stormwater (required by DWQ)
Describe impervious acreage (both 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.

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.
Page 12 of 13
? a
XM. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 211.0500) or any Buffer Rules?
Yes ? NoXX?
Is this an after-the-fact permit application?
Yes ? NoXX ?
X11V. 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-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
yte/-. /
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 13 of 13

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CONSERVATION PLAN MAP USDA
Harmon Field USDA iiiii
Natural Resources Conservation Service
Polk Soil & Water Conservation District Gerald Harbinson
28
Date: 08/26/2003
700 0 700 1400 Feet
N
14 .

i
' li ht
W ter
9?a Met r
App ox. 8'
rom Bnn FL
L
dower
light 6' ip Rap Toe
0 v See Detail Drawing
o-
m
X
A
m
-0 Power Pole
Fence(ine
Approx, 5' pprax, 18'
Evergreen Tree
VVV ?0 Hardwood Tree
prox. 52' C) Shurb
-? 50 0 50 100 150
Scale: 1' = 50'
Sod Field
Sod Field North Pacolet River Greenway
Polk County, North Carolina
J Hook Vanes
r i U.S. DEPARTMENT OF AGRICULTURE
NATURAL RESOURCES CONSERVA N SE VICE.
Date
Designed SCB 11-01 AFwoved 9y '
Title
Drawn SCB 11-01
rue
Traced
- HSheetNo Dravnng File Name:
Checked Harmon5.dwg
I?

Excavate 2' Bench at top of
Rip Rap. Slope at 2:1 or f latter,
Use Earth to fill between Rocks
Rip Rap Size - Approx, 20 cu f t
size rock along toe of bank
For example, 2'x3'x3,3'
Odd shaped rocks not suitable
f or J Hook shall be used to
armor toe of bank
1 or f latter
loth under Rock along
Slope, Approx, 85' Width
i
Length of J Hook
t
CONSTRUCTION -SPECIFICATION
INSTREAM STRUCTURES CONSTRUCTED OF ROCK
1) SCOPE
This specification covers the installation of Rock Vanes, J-Hooks, and Cross Vanes at locations
as shown on the construction plans and as directed by the engineer.
2) PURPOSE
• Redirect erosive velocities away from streambanks
• Provide aquatic habitat
• Cross Vanes may be used for grade control
3) DEFINITIONS
ROCK VANE -A deflective structure installed pointing upstream, beginning at bankfull sloping
down to the streambed. The angle at which the vane points upstream from the
bank shall be 20-30 degrees. The slope of the top surface of the vane will be 5-7
percent. The vane should extend from the bank to approximately 1/3 of channel
width. (See fig. 1)
J-HOOK - A rock vane with a hooked portion on the streambed. The hook provides
additional habitat. (See fig. 2)
CROSS VANE - A rock vane from both sides of the stream with a connecting bar on the
streambed. If this structure is used for grade control, the existing streambed
elevation may be increased by no more than 10 percent of bankfull, unless a
greater increase is provided for in the approved design. (See fig. 3)
ENGINEER - The USDA-NRCS and/or SWCD person(s) who have appropriate construction
approval authority for Practice Standard 580, Streambank and Shoreline
Protection for the specific size and type of structure.
STREAMBANK - portions of intermittent or perennial streambanks which are eroding at an
accelerated rate due to the effects of stream flow near banks without adequate
vegetative cover and supporting riparian area.
BANKFULL - The stream flow level at which the stream channel is formed and maintained.
The term "bankfull" should not be confused with "the top of the bank". Persons
who have received training in Natural Stream Channel evaluation shall identify
the bankfull elevation.
THALWEG - The deepest part of the channel where the highest channel velocities occur.
USDA-NRCS
North Carolina
page 1 of 5 Rock Structures
August 1999
1ti . i it
4) PLANNING CONSIDERATIONS
This practice should be applied as a part of a total Natural Stream Channel Restoration design.
These structures are not intended to be a total solution to the streambank erosion problem in
themselves. They are to be used as a component of a total streambank management plan, which
may require a number of associated practices. In some cases modification of the stream
dimension, pattern and profile may be required before structures are installed. The use of rock
structures without considering the stable dimension, pattern, and profile of the stream will most
likely result in failure.
5) PERMITTING
No work, which is covered by this specification, shall be performed until the Army Corp of
Engineers has issued a Section 404 permit and the Division of Water Quality has issued a
Section 401 certification (if required). The final construction plans and specifications must be
prepared and approved prior to the beginning of construction.
6) EQUIPMENT
• A hydraulic excavator (trackhoe) with a hydraulic "thumb" shall be used to handle and install
the rocks
• All required safety equipment shall be available during construction. Safety equipment
includes but is not limited to hard hats, gloves, and eye and hearing protection.
7) SUPERVISION
The engineer must be on-site to supervise and inspect each operation as it is performed. No
work, which is covered by this specification, shall be performed in the absence of the engineer
except as approved by the engineer. The work shall be conducted as directed by the engineer.
The engineer shall be notified a minimum of 24 hours before installation is performed.
8) INSTALLATION
• The engineer shall place a marker at the point where the last rock of the structure will meet
the streambed. This marker shall be set at a point, which represents the planned angle from
bankfull and.the planned slope of the structure. The engineer should check to see if this point
is approximately 1/3 of the total channel width.
• Holes for footer rocks shall be excavated in the streambed at the location, elevation and
orientation as directed by the engineer.
• A footer rock of the size and shape as directed by the engineer shall be installed in the hole.
Multiple footer rocks may be required, at the discretion of the engineer or as provided for in
the approved plan.
• A structure rock of the size and shape as directed by the engineer shall be installed on top of
the footer rock.
USDA-NRCS page 2 of 5 Rock Structures
North Carolina August 1999

• Streambed material will be removed as diregted by the engineer if it is required to move the
thalweg of the stream to the point of the structure.
• Streambed material shall be placed on the upstream side of the structure near the bank.
• Equipment shall be operated from the streambank whenever possible.
• Equipment which appears to be leaking fluids shall be removed to a safe site away from the
stream corridor until it is repaired and confirmed that no leaks exist.
9) ASSOCIATED PRACTICES
• ROOT WADS and related instream structures planned as an integral component of the
natural stream channel restoration design.
• CRITICAL AREA SEEDING shall be applied on all disturbed areas.
• WOODY VEGETATION shall be established on the sloped bank above baukfull and on top
of the bank.
• RIPARIAN FOREST BUFFER should be considered.
• LIVESTOCK EXCLUSION shall be installed if livestock are pastured in the area.
10) FIGURES
Figures attached to this specification illustrate the placement and orientation of the various
instream rock structures which may be included in the plan. Figures are as follows:
Figure 1- Rock Vane
Figure 2 - J Hook
Figure 3 - Cross Vane
11) ITEMS OF WORK
Items of work to be performed in conformance with this specification and the construction
details therefore are:
a. Construct stream stabilization measures at the pa rk- site on G+eele at
in Pa i t County at the locations as shown on the construction drawings and
as reced by the Engineer.
b. Ingress and egress of equipment and materials shall be only at locations and through routes
as approved by the Engineer.
c. Provide all equipment, tools, materials and labor required to install -Rock Vane(s)
which will require approximately rocks.
d. Provide all equipment, tools, materials and labor required to install) Hook(s) which
will require approximately rocks. ;7 S' X L-1 I X 2 1
i$qr* I s0 40nAX-1<-'
USDA-NRCS page 3 of 5 Rock Structures
North Carolina August 1999
"L, 1 5Z
4 ? ! I `
e. Provide all equipment, tools, materials and labor required to install Cross Vane(s)
which will require approximately rocks.
f. Provide all equipment, tools, materials and labor required to seed all disturbed areas, which
will be approximately D, acres.
g. Provide all equipment, tools, materials and labor required to establish permanent woody vegetation. The woody
vegetation shall consist of:
number species
uwn7 ei - species
number - species
h. Remove all construction debris associated with installation of these structures to an approved
location.
Angle
% (in degrees)
Slope
?( •!?j 1 (in percent)
(?l L
(T.?
Rock Vane
Cross Section
Rock Vane
Plan View
Figure 1
(after Rosgen)

USDA-NRCS page 4 of 5 Rock Structures
North Carolina August 1999

J Hook
Plan View
Slope
(in percent)
J Hook
Cross Section
Figure 2
(after Rosgen)
Angle -7-O
(in degrees)
r
1.
Angle
(in degrees)
r
i a
? '•.1 /; o
Cross Vane
Plan View
_ Slope
(in percent) --
Cross Vane
Cross Section
Figure 3
(after Rosgen)
USDA-NRCS page 5 of 5 Rock Structures
North Carolina August 1999

CONSTRUCTION SPECIFICATION
FABRIC FILTER CLOTH
1. SCOPE
This work shall consist of furnishing all materials, equipment and
labor necessary for the installation of geotextile fabric filter
cloth under rock riprap and as a load stabilizer under surfacing
materials on roadbeds and other heavy use areas.
2. MATERIALS
Fabric filter cloth shall be manufactured from synthetic long chain
or continuous polymeric filaments or yarns such as polypropylene,
polyethylene, polyester, polyamide, or polyvinyl idene-chloride. The
fabric filter cloth shall. be formed into a stable network of
filaments or yarns that retain their relative position to each
other, are inert to commonly encountered chemicals, and are
resistant to ultraviolet light exposure, heat, hydrocarbons, mildew,
rodents and insects. The fabric filter cloth shall be free of any
chemical treatment or coating that might significantly reduce its
permeability and shall have no flaws or defects that would
significantly alter its physical properties.
Fabric filter cloth shall be of the. non-woven type and shall conform
to the physical properties listed in_Table 1, based on the average
roll minimum value. Non-woven fabric filter cloth shall be
manufactured from randomly oriented fibers bonded together by the.
needle punched process.
Prior to installation of any fabric filter cloth, the Contractor
shall furnish the Contracting Officer the following information:
(1) Name of product and manufacturer.
(2) Product description, chemical composition, and copies of
typical laboratory test values.
(3) Statement of compliance attesting that the fabric filter
cloth meets the chemical, physical, and manufacturing
requirements stated in this specification.
(4) Signature of legally authorized official attesting to
validity of information provided.
4. SHIPMENT AND STORAGE
The fabric filter cloth shall be supplied in rolls wrapped with a
protective covering to keep out mud, dirt, dust, debris, and direct
sunlight. Each roll of fabric filter cloth shall be clearly marked
to identify the brand, type and the individual production run.
MRCS-NC (Page 1 of 3) FABRIC FILTER CLOTH _______
AREA 1 MARCH 1995

S. PLACEMENT
The fabric filter cloth shall be placed on the approved prepared
surface at the locations and in accordance with the details shown on
the drawings. The fabric shall be unrolled along the placement area
and loosely laid (not stretched) in such a manner that it will
conform to the surface irregularities when the stone or other
material is placed on it. No cuts will be permitted in the fabric
panel unless otherwise specified. The panel may be folded and
overlapped to permit proper placement in the designated areas.
The orientation of the width and length of the fabric panels shall
be as shown on the drawings. The fabric length shall be placed
parallel to the direction of water flow unless otherwise indicated
on the drawings. The overlaps of panels and end roll details shall
be as specified. The minimum overlap shall be 18 inches. '
Securing staples shall be placed along the edge of the panel and at
abrupt changes in contour to adequately secure the fabric filter
cloth to the soil surface. At overlaps, securing staples shall be
inserted through both layers along a line through the approximate
midpoint of the overlap. Securing pins shall be placed along a line
approximately two inches in from the edge of the outer limits of the
completed filter cloth area at intervals not greater than 12 feet.
Additional staples shall be installed as necessary to prevent any
slippage of the fabric, regardless of location. Staples shall be
machine made of No. 11 gauge or larger new steel wire formed into a
"U" shape. The size when formed shall not be less than 6 inches in
length with a throat of not less than 1 inch in width. Staples
normally used for securing erosion control netting may be acceptable
if approved by the engineer prior to installation.
Rock riprap and other surfacing material shall be placed in a manner
that prevents damage to the fabric filter cloth. In no case will
riprap be dropped on uncovered material from a height greater than
three feet.
7. ITEMS OF WORK AND CONSTRUCTION DETAILS
Items of work to be performed in conformance with this specification
and the construction details therefor are:
a. Filter Fabric
(1) This item shall consist of furnishing and installing the
non-woven fabric filter cloth under rock riprap and under
crushed stone surfacing materials.
(2) Fabric filter cloth supplied shall be Polyfelt TS 700,
Mirafi 160N, QuLine Q70, TerraTex N06 or equivalent material
meeting the requirement of Table 1.
URCS.-N.C _ (Page FARRI.C..FILTER CLOTH
AREA 1 MARCH 1995

TABLE 1
REQUIREMENTS FOR NON-WOVEN FABRIC FILTER CLOTH
Test Method Requirements
Tensile Strength* ASTM D-4632 180 lbs. Minimum
(pounds) Grab Test .
Bursting Strength*
(psi)
.Elongation at
Failure (percent)
Puncture.
(pounds)
Ultraviolet Light
(percent residual
tensile strength)
Apparent Opening
Size (AOS)
ASTM D-3786
Diaphragm Tester
ASTM D-4632
. Grab Test
ASTM D-4833
ASTM D-4355
15G hours
exposure
ASTM D-4751
320 psi Minimum
50o Minimum
80 Pounds Minimum
70 Percent Minimum
No larger than the
openings in a US
Standard'Sieve No.40
Permittivity ASTM D-4491 0.70 Minimum
(1/seconds)
*Minimum average roll value - weakest principal direction.
NR_C_S-_N_C . _.. . . ..._... - .. ___ (Page _3-.Q-t..3) . _--FABRLC. FILTER. CLOTH.
AREA 1 MARCH 1995
03!28;2001 16:36 FAY 828.452 7031 USDA `AT RESQL"RES Oo2
r .
Harmon Melds Site
North Pacolet River
Polk County
13ackzronud Information
North Pacolei River is a tributary of the Upper Broad River Basin. The North Pacolet River has
problems scattered up and down its length associated with streambank erosion. The excessive
sireambank erosion in this stream is typical of a stream that is entrenched and can no longer reach
its historic floodplain. This stream appears to have been straightened years ago. Straightening this
stream decreased stream length, increased stream slope and led to the entrenchment currently
associated with this stream. The typical stream one would expect to fiad in this valley type, would be
a meandering stream made up of riffles and pools. This stream would have a water slope of less than
1 percent and would probably have well defined point bars ou the itiside of the meanders. This
stream would typically reach the bankfull slow every 1.3 -1.5 years. This storm event w:,uld.;!ace
water flow at or near the top of the low bank, Storm events or flows greater than the 1.3 -1.5 year
storm would spill over onto the floodpiafn of the stream. This type of stream would be classified as a
"Type C" stream. North Pacelet River was more than likely a "Type C" stream many years ago,
however due to changes in the watershed this stream is now a "Type P' strea.n. Streams of this type
can no longer reach their historic floodplain during storms associated with bankfull. Therefore
higher velocity flows arc contained in the stream channel. The low bunk to bankful' height ratio is
greater than 1.2:1. This results in excessive erosion of the streumbsuks and excessive amounts of
sedimcut being delivered directly into the stream. Streams of this type are trying to return to their
original stream type by widening themselves to develop a floodprone area at a lower elcynlion.
Conceptual SolatiOns
There are four priorities to coasider when undertaking a stream restoratioulstabili2ation project. (1)
Construct the proffer stream type in order to reconnect the stream to its historic floodplain, (2)
Manually assist the stream to develop a floodprone area at a lower elevation so the stream can
maintain its proper pattern, profile, and dimension, (3) Coavert the stream to a different stream type
at the existing elevation in order to maintain stability, (1) Leave the stream alcue and let nature take
it course so the stream can correct itself.
A priority (1) restoration is the most desirable, however with this stream, property lines, and
differences in elevation we have not included this option as an alternative.
A priority (2) restoration/stabilization can be accomplished for this stream. This should involve
establishing a "'T'ype C" stream the existing elcvatioa. The new "Type C" stream would have a
floodprone area dcvcloped at a lower elevation, This would involve, removing material from the
streambanks and lowering the low bank to bankfull height ratio to between 1-1.2:1. Therefore with
storm events greater then 1.5 year return interval the stream would spill over onto the iie,v
t'loodplain where the velocities would be decreased and the stress on the streambanks reduced. Some
structures such as rock vanes, root wads, and log vanes would be needed to develop the proper
dimension, pattern, and profile for this stream type. Due to the v,idth of the ficodprone area needed
for the entrenchment ratio of a stable stream at this iower elevation And the building constraints we
have not provided a conceptual design for this priority.
A priority (3) restoratiou`stab!liiation can also be accomplished for this strew r:. This would involve
converting this stream to a "Type Be" stream at the existing elevation. This type of conversion would
require more in-stream structures such as cross-vanes, roel: vanes, and log vanes. Some earthwork
would also need to be. done ou the streainbar,ks to establish the proper dimension, pattern; profile
and Stable streambanks .for this stream type. We have included a conceptual driwing of this type of
restoration as a model. A complete design and other information could be developed when a
restoration priority is decided upon.
03.'23%2001 18:37 FAX 828 452 7051 USDA NAT RESOURES (0004
MATERIALS
J-HOOK ROCK VANES & CROSS VANES
THESE ROCKS SHOULD BE APPROXEMATELY 4'X Z' X 2' LY STZE- THESE ROCKS WILL
WEIGHT APPROXENL4,TELY I500 LBS. EACFJ. THESE ROCKS SHOULD BE AUXGVLAR
SHAPED AND AS FLAT AS POSSIBLE ALOIYG THE LONGEST SIDE OF THE ROCK.
The cost estimates on this project were based on preliminary survey data collected by local Soil and
Water Conservation District personnel along with MRCS. Restoring this section of stream will
greatly decrease the amount of sediment leaving this stream and entering -North Pacclet River.
Other benefits to this stream will include a lower water temperature due to the development of a
forested riparian buffer along the stream to provide shade, improved water quality, and improved
aquatic habitat.
03'26;'2001 16:38 FAX [phone]
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