20051649 Ver 1_Complete File_20050831

OF W A 7-4! '

? Q Michael P. Easley, Governor
?
y William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources

Alan W. Klimek, P.E. Director
Division of WaterQuality
September 8, 2005
DWQ Project # 05-1649
Avery County
Robert Wiseman, County Manager
Avery County
Post Office Box 640
Newland, NC 28657
U
Subject Property: Stacey Creek EWP (DSR - SCI) SFP 2 0 ZUU5
Approval of 401 Water Quality Certification with Additional Conditio?t/•?D?1Q;.",tj ,y?
Dear Mr. Wiseman:
You have our approval, in accordance with the attached conditions and those listed
below, to place fill within or otherwise impact 200 feet of streams for the purpose of
streambank stabilization and woody debris removal / trash removal at the subject
properties, as described within your application received by the N.C. Division of Water
Quality (DWQ) on August 31, 2005. After reviewing your application, we have decided
that the impacts are covered by General Water Quality Certification Number(s) 3367
(3367). The Certification(s) allows you to use Nationwide Permit(s) 37 when issued by
the US Army Corps of Engineers (USACE). In addition, you should obtain or otherwise
comply with any other required federal, state or local permits before you go ahead with
your project including (but not limited to) Erosion and Sediment Control, Non-discharge,
and stormwater regulations. Also, this approval to proceed with your proposed
impacts or to conduct impacts to waters as depicted in your application shall
expire upon expiration of the 404 or CAMA Permit.
This approval is for the purpose that you described in your application. (Nothing in this
approval should be interpreted as giving permission to remove bedload material
from the existing channel, nor allowing for the construction of berms which
would not allow the stream access to it's floodplain.) As "stable" and "pre-storm"
are not interchangeable terms, all work must be to ensure stability, regardless of
channel location. Additionally, channels cannot be returned to it's pre-storm location
unless there is documented instability is submitted and approved as part of the
application package. If you change your project beyond the approval here, you must
notify us and you may be required to send us a new application. If the property is sold,
the new owner must be given a copy of this Certification and approval letter and is
thereby responsible for complying with all conditions. If total fills for this project (now or
in the future) exceed one acre of wetland or 150 linear feet of stream, compensatory
mitigation may be required as described in 15A NCAC 2H .0506 (h). This approval
requires you to follow the conditions listed in the attached certification and any
additional conditions listed below.
401 Wetlands Certification Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] /FAX [phone] / Internet http://h2o.enr.state.nc.us/ncwetlands
-? W.-V
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper
Avery County:
Page2 of6
September 8,2005
The Additional Conditions of the Certification are:
1. Impacts Approved
The following impacts are hereby approved as long as all of the other specific
and general conditions of this Certification (or Isolated Wetland Permit) are met.
No other impacts are approved including incidental impacts:
Amount
Approved (Units) Plan Location or Reference
Stream 200 feet Stacey Creek
2. Erosion & Sediment Control Practices
Erosion and sediment control practices must be in full compliance with all
specifications governing the proper design, installation and operation and
maintenance of such Best Management Practices in order to protect surface
waters standards:
a. The erosion and sediment control measures for the project must be
designed, installed, operated, and maintained in accordance with the most
recent version of the North Carolina Sediment and Erosion Control Planning
and Design Manual.
b. The design, installation, operation, and maintenance of the sediment and
erosion control measures must be such that they equal, or exceed, the
requirements specified in the most recent version of the North Carolina
Sediment and Erosion Control Manual. The devices shall be maintained on
all construction sites, borrow sites, and waste pile (spoil) projects, including
contractor-owned or leased borrow pits associated with the project.
c. For borrow pit sites, the erosion and sediment control measures must be
designed, installed, operated, and maintained in accordance with the most
recent version of the North Carolina Surface Mining Manual.
d. The reclamation measures and implementation must comply with the
reclamation in accordance with the requirements of the Sedimentation
Pollution Control Act.
3. No Waste, Spoil, Solids, or Fill of Any Kind
No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian
areas beyond the footprint of the impacts depicted in the Pre-Construction
Notification. All construction activities, including the design, installation, operation,
and maintenance of sediment and erosion control Best Management Practices,
shall be performed so that no violations of state water quality standards, statutes,
or rules occur.
Avery County:
Page 3 of 6
September 8, 2005
4. No Sediment & Erosion Control Measures w/n Wetlands or Waters
Sediment and erosion control measures shall not be placed in wetlands or waters
to the maximum extent practicable. If placement of sediment and erosion control
devices in wetlands and waters is unavoidable, they shall be removed and the
natural grade restored within six months of the date that the Division of Land
Resources has released the project.
5. Certificate of Completion
Upon completion of all work approved within the 401 Water Quality Certification
or applicable Buffer Rules, and any subsequent modifications, the applicant is
required to return the attached certificate of completion to the 401/Wetlands Unit,
North Carolina Division of Water Quality, 1650 Mail Service Center, Raleigh, NC,
27699-1650.
6. Construction in this creek and disturbance within a 25-foot trout buffer, where
applicable, should be avoided during the October 15 to April 15 trout spawning
period to avoid adverse effects of sediment on eggs and larvae, where applicable.
However, Wildlife Resources Commission will not object to construction of Natural
Resources Conservation Service "urgent and compelling" sites during the spawning
period provided these projects are, to the extent appropriate and practical,
constructed by: (1) using flow diversion structures such as sand bags, (2) placing
large-sized rock toes and filter cloth backing for stabilization sites before backfilling,
and (3) excavating new channel alignments in dry areas. Construction at the other
non-"urgent and compelling" sites should not occur during the spawning period to
minimize the potential adverse effects of multiple construction activities on trout
resources in this creek.
7. Sediment and erosion control measures must be implemented prior to construction
and maintained on the sites to minimize sediment in downstream areas. Seeding for
a temporary cover of wheat, millet, or similar annual grain or permanent herbaceous
cover should occur on all bare soil within five (5) days of ground disturbing activities
to provide long-term erosion control. The projects should be accomplished in stages
instead of leaving large tracts exposed to further storm events. Erosion control
matting should be used in conjunction with appropriate seeding on disturbed soils in
steep slope and riparian areas. Matting should be secured in place with staples,
stakes, or, wherever possible, live stakes of native trees. Straw mulch and tall
fescue should not be used in riparian areas. In addition, because of an anticipated
difficulty in establishing ground cover during the winter, reseeding should be
conducted, as necessary, in the spring-time with a native annual and perennial seed
mix with a temporary nursery crop of wheat, millet or other grain.
Avery County:
Page4 of6
September 8, 2005
8. Only clean, large, angular rock; large woody material, or other natural stream design
materials and techniques should be used for bank stabilization. Rock should not be
placed in the stream channel in a manner that constricts stream flow or that will
impede aquatic life movements during low flow conditions. Filter cloth should be
placed behind large rock that is used for bank stabilization. Properly designed rock
vanes should be constructed wherever appropriate on bank stabilization and
channel realignment stream reaches to improve channel stability and to improve
aquatic habitat. Root wads should be installed low enough in the bank so that a
significant portion (at least one-third) the root wad is inundated during normal flows.
9. The channel should be restored to a more stable condition. However, under no
circumstances should river rock, sand or other materials be dredged from the
stream channel under authorization of this permit except, if necessary, in the
immediate vicinity of the eroding banks for the explicit purpose of anchoring
stabilizing or flow/grade control structures or for reestablishing the natural
and more stable stream channel dimensions. Stream bed materials are unstable
in flowing-water situations and are unsuitable for bank stabilization. In stream
dredging has catastrophic effects on aquatic life and disturbance of the natural form
of the stream channel can cause downstream erosion problems. The natural
dimension, pattern, and profile of the stream upstream and downstream of the
permitted area should not be modified by widening the stream channel or changing
its depth.
10. Stabilization measures should only be applied on or near existing erosion sites,
leaving other stable stream bank areas in a natural condition. Grading and
backfilling should be minimized and tree and shrub growth should be retained where
possible to ensure long term availability of stream bank cover for aquatic life and
wildlife. Backfill materials should be obtained from upland sites except in cases
where excess stream bed materials are available. Berms should not be permitted
because they block the floodplain, constrict and accelerate flood flows, and often fail
and sometimes impede drainage during large flood events.
11. Repairs to eroded banks should be conducted in a dry work area where possible.
Sandbags or other clean diversion structures should be used where possible to
minimize excavation in flowing water. Channel realignments should be constructed
by excavating the new channel from downstream to upstream before connecting it to
the old channel.
12. Heavy equipment should be operated from the bank whenever possible. All
mechanized equipment operated near surface waters should be inspected and
maintained regularly to prevent contamination of stream waters from fuels,
lubricants, hydraulic fluids or other toxic materials. Equipment used in stream
channel must be clean, new or low hour equipment.
13. Disturbed stream banks and a 25-foot vegetated zone, or the widest width that is
practical under the site conditions, should be restored along the construction sites to
natural riparian conditions with native trees and shrubs (e.g., silky dogwood,
rhododendron, dog hobble, red maple, silky willow, tag alder, black willow,
sycamore) to provide long-term bank stability and stream shading. Note, silky
dogwood, silky willow and black willow can be planted as live stakes collected during
the dormant growing season.. Cuttings should be randomly planted on four (4) foot
centers from the waters edge to the top of the bank. Trees should be planted on ten
(10) to twelve (12) foot centers. Stream banks in these areas should also be
Avery County:
Page 5 of 6
September 8,2005
seeded with a native annual and perennial seed mix with a temporary nursery crop
of wheat, millet or other grain.
14. If pasture along the stream is to be used for grazing, a fence must be constructed
outside of the riparian zone and the stream to prevent livestock from entering these
areas.
15. Diffuse Flow
All constructed stormwater conveyance outlets shall be directed and maintained
as diffuse flow at non-erosive velocities through the protected riparian zones
such that it will not re-concentrate before discharging into a stream. If this is not
possible, it may be necessary to provide stormwater facilities that are considered
to remove nitrogen. This may require additional approval from this Office.
16. Riparian Zone Replanting
Replanting of vegetation within disturbed areas located within 30 feet of the
streambank associated with any land disturbing activity, repair, replacement
and/or maintenance must be done in a manner consistent with the Guidelines
for Riparian Buffer Restoration immediately following construction. (Please
see attached.)
17. Deed Notifications
Deed notifications or similar mechanisms shall be placed on all retained
jurisdictional wetlands, waters and protective woody riparian zones in order to
assure compliance for future wetland, water and buffer impact. These
mechanisms shall be put in place prior to impacting any wetlands, waters and/or
buffers approved for impact under this Certification Approval and Authorization
Certificate. A sample deed notification can be downloaded from the
401/Wetlands Unit web site at http://h2o.enr.state.nc.us/ncwetlands. The text of
the sample deed notification may be modified as appropriate to suit to this
project.
18. Turbidity Standard
The turbidity standard of 10 NTUs (Nephelometric Turbidity Units) shall not be
exceeded as described in 15 A NCAC 2B. .0200. Appropriate sediment and
erosion control practices must be used to meet this standard.
19. No Sediment and Erosion Control Measures in Wetlands
Sediment and erosion control measures shall not be placed in wetlands or waters
to the maximum extent practicable. If placement of sediment and erosion control
devices in wetlands and waters is unavoidable, they shall be removed and the
natural grade restored within six months of the date that the Division of Land
Resources or locally delegated program has released the project.
Avery County:
Page6 of 6
September 8, 2005
Violations of any condition herein set forth may result in revocation of this Certification
and may result in criminal and/or civil penalties. The authorization to proceed with your
proposed impacts or to conduct impacts to waters as depicted in your application and
as authorized by this Certification, shall expire upon expiration of the 404 or CAMA
Permit.
If you do not accept any of the conditions of this Certification (associated with the
approved wetland or stream impacts), you may ask for an adjudicatory hearing. You
must act within 60 days of the date that you receive this letter. To ask for a hearing,
send a written petition, which conforms to Chapter 150B of the North Carolina General
Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh,
N.C. 27699-6714. This certification and its conditions are final and binding unless you
ask for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of
the Clean Water Act. If you have any questions, please telephone Cyndi Karoly in the
Central Office in Raleigh at 919-733-9721 or Mr. Kevin Barnett in the DWQ Asheville
Regional Office at 828-296-4657.
Sincerely,
Alan W. Klimek, P. E., Director
Division of Water Quality
AW K/khb
Enclosures: GC 3367
Certificate of Completion
Guidelines for Riparian Buffer Restoration
cc: Steve Glickauf,
Buck Engineering, PC
8000 Regency Parkway
Suite 200
Cary, NC 27511
USACE Asheville Regulatory Field Office
DWQ 401 Central Office
DLR Asheville Regional Office
File Copy
Central Files
Filename: 05-1649.EWP.StaceyCreek.Approval
Triage Check List
Date: 09/01/05 Project Name: Avery County EWP
DSR SC1
DWQ #:05-1649
Kevin Barnett, Asheville Regional Office County: Avery
To:
60-day Processing Time: 8/31/05 to 10/29/05
From: Cyndi Karoly Telephone: [phone]

The file attached is being forwarded to you 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: As per our discussion regarding revision of the triage and delegation processes,
please review the attached file. Note that you are the first reviewer, so this file will need to be
reviewed for administrative as well as technical details. If you elect to place this project on hold,
please ask the applicant to provide your requested information to both the Central Office in
Raleigh as well as the Asheville Regional Office. As we discussed, this is an experimental, interim
procedure as we slowly transition to electronic applications. Please apprise me of any
complications you encounter, whether related to workload, processing times, or lack of a "second
reviewer" as the triage process in Central had previously provided. Also, if you think of ways to
improve this process, especially so that we can plan for the electronic applications, let me know.
Thanks!
EWP-Avery County, North Carolina
DSR No. SCI - Stacey Creek
Cata?vba River Basin
Scope of Work 200051r),19
This site is on Stacey Creek along Hwy 181. Site specific plans, which are attached, show site
location, existing conditions and planned repairs. All repair work is being proposed under the
Emergency Watershed Protection Program that Avery County is administering. Questions
relative to this package should be directed to Buck Engineering's Greg Price at 919.459.9009.
Contents
• Preconstruction Notification (Permit Application).
• Plan Review Checklist of NRCS's review.
• Agent Authorization Letter for Avery County.
• Vicinity Map ? ? V
• Repair Plan 12 IlII
• Table 1. Property owners of sites proposed for repair. II??JJ
• Cultural Resources Review. AUG 3 1 2005
• Threatened and Endangered Species Review.
• Erosion and Sediment Control Plan ViviJiio"stud TaRMWA CnGnr P11
• Details and Specifications
Office Use Only: Form Version March 05
200516:;9
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
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
® 401 Water Quality Certification ? Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: Nationwide 37
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 cou
4), and the project is within a North Carolina Division of Coastal M Li, PC P D
D
Environmental Concern (see the top of page 2 for further details), check ,Ti P]
AU G 3 1 2005
II. Applicant Information
DENR -WATER QUALITY
1'+'EWDS AND STORIAVATER 8MCH
1. Owner/Applicant Information
Name: Robert Wiseman
Mailing Address: County Manayer
County Administrative Offices
PO Box 640
Newland NC 28657
Telephone Number: 828-733-8201 Fax Number:
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: Steve Glickauf
Company Affiliation: Buck Enaineerini ,
Mailing Address: 200 Arizona Avenue, Suite 114
Atlanta, Georgia 30307
Telephone Number: 404-371-4495 Fax Number: 404-653-0186
E-mail Address: sglickaufnbucken ing eering.com
Page 1 of 9
III. 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, D`'VQ 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: DSR SC 1
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): See Table 1.
4. Location
County: Avery Nearest Town: Varies
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers/names, landmarks, etc.): SCI is on Stacey Creek
which parallels Hwy 181, south of Newland across from Hanes Rd.
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum):
Table 1 has individual landowners coordinates.
6. Property size (acres): N/A
7. Name of nearest receiving body of water: SCI is on Stacey Creek which is a tributary to the
Linville River.
8. River Basin: Catawba
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://li2o.enr.state.nc.us/adinin/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: A site specific description is included with the site plan.
Landuse is a mixture of residential and commercial.
Page 2 of 9
10. Describe the overall project in detail, including the type of equipment to be used: Specific
repair activities for the site is provided in the site repair plans which are attached. Repair
activities proposed for this sites includes: grading bankfull benches in areas where the
channel can no longer access its floodplain grading _and planting unstable stream banks to
provide long term stability, installing gabion baskets or concrete retaining walls, constructin
rock toes and installing brush mattresses for bank stabilization This work will require the
use of a trackhoe with hydraulic thumb and a dump truck to haul boulders to the site and to
remove debris from the site Bulldozers may also be needed for pradina work.
11. Explain the purpose of the proposed work: This work is being done as part of the
Emergency Watershed Protection program that counties impacted by 2 hurricanes in the fall
of 2004 are carr idng out The purpose of the work is to repair damaged stream reaches that
are unstable and continuing to cause loses to personal and public property and to public
resources by degrading water quality and other natural resources.
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 JD's and/or permits have been requested and/or obtained for this
project in the past
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 pen-nit requests are anticipated for this project
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. 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
Page 3 of 9
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 this work will be
minimized whenever possible However, to accomplish these needed repairs, impacts may
be realized from temporary increased turbidity and short-term loss of herbaceous vegetation.
Long-term impacts will be an increase in stream bank bridge and building stability, stable
dimension and improved vegetative cover.
2. Individually list wetland impacts. Types of 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.
Wetland Impact
Site Number
(indicate on map)
Type of Impact Type of Wetland
(e.g., forested, marsh,
herbaceous, bog, etc.) Located within
100-year
Floodplain
es/no Distance to
Nearest
Stream
linear feet Area of
Impact
(acres)

L
Total Wetland Impact (acres) 0
3. List the total acreage (estimated) of all existing wetlands on the property: 0.00 acres
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are 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 Average Stream
Impact
Impact Perennial or Width Before Length Area of
Number Type of Impact
Intermittent.? Impact
(linear Impact
(indicate on
feet) (acres)
ma
Install retaining wall (concrete or gabion
SCI baskets), in-stream structures, boulder toes Perennial 30 feet 200 0.15
and brush mattresses, slope, seed, mat, and
Totals 200 0.15
Page 4 of 9
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, dredging, floodin , drainage, bulkheads, etc.
Open Water Impact
Site Number
indicate on ma Name Waterbody

(if f ap
applicable) e)
Type of Impact Type of Waterbody
(lake, pond, estuary, sound, bay,
ocean, etc. Area of
Impact
acres

L
Total Open Water Impact (acres) 0
6. List the cumulative impact to all Waters of the U.S. resulting from the project:
Stream Im act acres): 0.15
Wetland Impact (acres): 0
Open Water Impact (acres): 0
Total Impact to Waters of the U.S. acres 0
Total Stream Impact (linear feet): 200
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.
Pond Creation
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)
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. Access to the site will be over
Page 5 of 9
the most stable route possible and movement of vehicles over access routes will be minimized.
Wherever possible equipment work will be done from the stream bank Operating equipment
within the channel will be done when this is the only way_ to accomplish needed work.
Excavated material will be moved directly to trucks for hauling to disposal sites when it will not
be used on site. When excavated material will be used on site it will be handled as few times'as
possible Work at each site will be accomplished as quickly as possible and the site will be
stabilized with erosion control matting and seeding within 5 days of site completion. Trees will
be planted during the next dormant season Equipment leaking any fluids will not be used and if
leaks occur during construction the equipment will be replaced or repaired immediately_
Sediment and erosion control measures including silt fences stoned entrances protected stock
pile areas diversions and check dams will be employed where appropriate to minimize sediment
movement off site.
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 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 for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o.enr.state.nc.us/ncwetlands/stnna,ide.litin1.
1. 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
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
NA
Page 6 of 9
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.ne.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): N/A
Amount of buffer mitigation requested (square feet): N/A
Amount of Riparian wetland mitigation requested (acres): N/A
Amount of Non-riparian wetland mitigation requested (acres): N/A
Amount of Coastal wetland mitigation requested (acres): N/A
IX. Environmental Documentation (required by DWQ)
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 for 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 213 .0233
(Meuse), 15A NCAC 213 .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
Page 7 of 9
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.
Zone* Impact
(square feet Multiplier Required
Mitigation
1 3 (2 for Catawba)
2 1.5
Total i i I
* 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.
If buffer mitigation is required, please
Donation of Property, Riparian Buffer
Riparian Buffer Restoration Fund). Ple
within 15A NCAC 2B .0242 or.0244, or
discuss what type of mitigation is proposed (i.e.,
Restoration / Enhancement, or Payment into the
ase attach all appropriate information as identified
.0260.
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
stonnwater 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. There will be no change in impervious acreage.
Existing project sites will remain in their described land use Proposed repair work will not alter
runoff of stormwater from each site The end result of this proposed work will be stream banks
that are better able to withstand the erosive forces generated by storm flows.
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.
N/A wastewater will not be generated by this project
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ? No
Is this an after-the-fact permit application? Yes ? No
Page 8 of 9
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://112o.enr.state.ne.us/ncwetlands. If no, please provide a short narrative description:
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-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
N/A
0
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 9 of 9
Plan Review Cheeldist
EWP-Avery County, North Carolina
DSR PM1, SC1 NT11' .LRI
A J.1
I
, the Natural Resource Conservation Service Agent for Avery
-44 )
County, have reviewed the stream repair plans listed below. These plans have been
prepared by Buck Engineering PC to accomplish stream repair under the Emergency
Watershed Protection Program being administered by Avery County. The following table
summarizes my comments on these plans:
DSR Approve Disapprove Approve with Modifications
PM1
S l
NT 11
TRT-

Additional comments:
1AFI-I'Altta -,,"/ -, Natural Resource Conservation Service Agent
Agent's Signature
To Whom It May Concern:
I, Robert Wiseman, County Manager for Avery County, attest to the fact that Avery County has
entered into a contract with Buck Engineering PC, a North Carolina professional corporation. Buck
Engineering will be providing engineering services and permitting assistance in support of the
Emergency Watershed Protection Program. In this contractual relationship, Buck Engineering will
act as the County's agent for the purpose of accomplishing this work. Specifically, employees of
Buck Engineering may take those actions necessary to obtain environmental permits from the U. S.
Army Corps of Engineers, N. C. Division of Water Quality, and N. C. Division of Land Quality.
i
Robert Wiisemaan, 2, emu .? , County Manager for Avery County
Date: / " C9 S?
Office: Avery County Courthouse, Newland, NC 28657
Map Inset

Concrete retaining wall or gabion
baskets
Slope, seed, mat, and plant.
184300318809 LJ
Spillway
POORE, CHARLES W & BETTY
• Repair spillway toe. r - ??es
1$4300434385.,
AveCounty LEGEND P£OORE,,QHARLES W.& BETTY
?...,.,, oroc « Avery County EWP
BUCK A
5,9 58'1 o LR-3 sc-1 O DSR Site Parcels
LR-1 <NCiai
,ricw?"ti-r?s c i Topo (S' Contours)
Field Crew: LR-2 ? o 100 200 aoo
Streams ? Feet
Time/Date: Su' w
f ? 'Date of aerial photography: 1998
DSR No. SC-1
Site Assessed By: GM, AC
Date Assessed: 6/17/2005
Location: Parallels Hwy 181, south of Newland,
across from Hanes Rd.
Latitude 36200'23" Longitude -81253'33"
Length of
Assessment: Approximately 2000 feet Waterbody: Stacey Creek
_ Debris removal
X Bank sloping
X Bank stabilization
Channel realignment
_ In-stream structures
X Riparian planting
X_ Seeding
Adjust channel dimension
Summary Evaluation of Conditions:
There are three separate areas within this DSR that need to be addressed. As shown by the design aerial, these sites
are numbered starting downstream as 1, 2, and 3. Stacey Creek flows NW. Site 1 consists of extreme 12 foot vertical
bank erosion opposite a three pipe culvert. During high flows, the culvert directs an enormous force into the left bank.
This erosion threatens a home that is located on top of the bank. Site 2 involves a concrete spillway that directs the
overflow from a pond into the right bank of Stacey Creek. During the hurricane, the flow from the spillway caused
bank erosion which comes within 15 feet of highway 181. The toe of the spillway has also collapsed. Site 3 involves a
vertical and eroding left bank for approximately 60 linear feet.
According to the Economic Evaluation the project will protect 1 home valued at $175,000 and Hwy 181 which was
given no value. According to the Damage Survey Report the installation cost of emergency work would be $4,000.
The recommendations for improvements listed below including a concrete retaining wall at Site 1 would cost
approximately $108,280.
Recommendations for Improvements:
Site 1: Because of the proximity of the home, this bank cannot be sloped or benched. Haywood Baker Inc. in
cooperation with Triad Geotechnical Consultants offered two suggestions for stabilizing this site. They stated that:
"Either using gabion baskets or a cast-in-place concrete retaining wall, a 10 to 12-foot high
concrete retaining wall could be constructed and then sloped back to the top of the
embankment. Gabion baskets will be cheaper but probably not as sturdy, as a concrete wall.
HBI does not typically do either type of work [nor does Buck Engineering]. However the work
will likely cost $25,000 to $50,000 for the gabion baskets and $75,000 to $100,000 for a
concrete wall. (very rough estimates)."
Site 2: See the design detail for specific recommendations. The proximity of the road to the eroding bank limits the
options for stabilizing this reach. The solution at this site shall involve stabilizing the toe of the right bank with large
boulders (6' X 4' X 3') for approximately 55 feet. Approximately 30 square yards of brush mattresses should be
installed on the right bank above the boulders. The toe of the spillway should be protected with a mixture of class 1
and class B stone placed on top of a layer of filter fabric.
Site 3: See the design detail for specific recommendations. The left bank will be sloped at a 2.5:1 to 3:1 angle for
approximately 60 feet. The bank will also be seeded, matted, and planted. It is recommended that a 25 foot riparian
buffer be planted as well. However, because of the proximity of a shed, it is unlikely that the landowner will agree to
this buffer. Therefore, the buffer will not be included in the cost estimate.
At site 3 the water surface to the top of the bank (approximately 3.5 feet in height) should be planted with live staking
and bare root seedlings (0.01 acres). 10 live stakes should be planted to achieve 6 foot spacing. The entire area
should be seeded using both temporary and permanent seeding mixes. 0.2 Ibs of each type of seed will be needed to
achieve an application rate of 15lbs/acre. 82 square yards of coconut coir matting will be required to cover the banks.
See the attached erosion and sedimentation control plan for the species list.
[SUCK
BUCK
CLIENT A V jLj UW P
SUBJECT
PAGE I
PROJECT Coin 1a SC%\ PROJECT NO. _
4z. Prepared By 5L
Approved By
OF I
Date G' I:?• D 5
Date
dry"
Photo 1: Site 1. Three pipe culvert and left ban'
baskets will be placed. Note the proximity of the
F
Photo 2: Site 1. Left bank erosion where
wall or gabion baskets will be placed.
(Group 12) SC-1
Avery County EWP
ii ?? ?t V r
Y?v{-
W-j
W

Photo 3: Site 1. Left bank erosion and home.
Photo 4: Site 2. Concrete spillway. Note the failure at the base.
BUCK (Group 12) SC-1 Photographs
Avery County EWP
6/15/05
Ph
BUCK ? (Group 12) SC-1 Photographs
Avery County EWP
6/15/05
Photo 6: Site 2. Concrete spillway (left of photo) and pond.
Photo 7: Site 3. Vertical eroding bank behind horse farm.
I Photo 8: Site 3. Vertical eroding bank behind the horse farm. I
BUCK (Group 12) SC-I Photographs
Avery County EWP 6/15/05
TABLE 1
Landowners, Avery County, NC EWP
GROUP DSR PARCEL NUM NAME ADDRESS CITY STATE ZIP Latitude Longitude IMPACT FT IMPACTTYPE
184300337833 POORE, CHARLES JOSEPH PO BOX 9 JONAS RIDGE NC 28641 36.006912 -81.895113 40 bank sloping
184300434385 POORE, CHARLES W & BETTY 8130 JOE POORE RD NEWLAND NC 28657 36.005678 -81.892494 40 bank sloping
12 SC1 184300318809 POORE, CHARLES W & BETTY 8130 JOE POORE RD NEWLAND NC 28657 36.001202 -81.894353 50 structures
184300343948 AUTRY, DONNA A 88 HANES RD NEWLAND NC 28657 36.010115 -81.896708 30 structures
184,300,348554 COOK, DONNIE & COOK, TRINA DENISE 115 HANES RD NEWLAND NC 28657 36.009083 -81.895173 30 structures

6/28/05
Subject: Cultural Resources Literature Search and Survey Results for Avery County NRCS Planned
EWP Undertakings
To: Jane Shaw, NRCS District Conservationist
Date of Survey: 6/14 - 15/2005
From : Jim Errante
USDA-NRCS, CRS SC & NC
1835 Assembly St., Rm 950
Columbia SC 29201
Phone: [phone]
The following list of DSR's were reviewed by Jim Errante, NRCS Cultural Resources Specialist (CRS). A
literature search for each planed practice location took place in the Archaeological Map room of the NC Office
of State Archaeology. Each location was reviewed for the potential of NRCS planned activities to effect
cultural resources (CR's). In addition, photographs of the APE's were reviewed and discussions were held
with knowledgeable field office and the engineering staff in order to determine the potential of planned
activities to effect CR's at each EWP practice location. Each practice location received a ranking of a low,
medium or high potential to effect CR's.
All EWP practice locations receiving a medium or high ranking to effect cultural resources were
archeologically surveyed by the NRCS CRS. Archaeological survey procedures included reconnaissance
survey of all visible soils in the area including river bank profiles, and shovel testing. All shovel tested soils
were screened through '/4 inch hardware mesh. The following Excel file list of EWP locations includes a
statement describing the results of this survey work. The NRCS CRS maintains the field work details of the
archaeological survey at each APE. Any questions concerning the results of these survey results as listed
below should contact the NRCS CRS for further explanation.
DSR #s CR Review Comments
BC 1 Elk Mills Low potential for impact to CR's FO to survey
BC 1 Elk Park Low potential for impact to CR's FO to survey
BC 2 Low potential for impact to CR's FO to survey
CB 1 Low potential for impact to CR's FO to survey
cc 1 No previous recorded CR's. Very low terrace over stream & disturbed soils in APE. Surveyed by
CRS. Ok to proceed.
CC 2 No previous recorded CR's. Very low terrace over stream & disturbed soils in APE. Surveyed by
CRS. Ok to proceed.
CC 3 No previous recorded CR's. Very low terrace over stream & disturbed soils in APE. Surveyed by
CRS. Ok to proceed.
DSR #s CR Review Comments
NT 3 Low potential for impact to CR's FO to survey - primarily debris removal.
NT 4 No CR's previously recorded in area. Location will primarily involve debris removal. Low banks in
area and no evidence of CR's found. Surveyed by CRS. Ok to proceed.
NT 5 No CR's previously recorded in area. Location will primarily involve debris removal. Low banks in
area and no evidence of CR's found. Surveyed by CRS. Ok to proceed.
NT 6 No CR's previously recorded in area. Location will primarily involve debris removal. Low banks in
area and no evidence of CR's found. Surveyed by CRS. Ok to proceed.
NT 7 Low potential for impact to CR's FO to survey (previously surveyed - No CR's)
NT 8 No CR's previously recorded in area. Location will primarily involve debris removal. Low banks in
area and no evidence of CR's found. Surveyed by CRS. Ok to proceed.
NT 9 No CR's previously recorded in area. Location will primarily involve debris removal. Low banks in
area and no evidence of CR's found. Surveyed by CRS. Ok to proceed.
NT 10 No CR's previously recorded in area. Location will primarily involve debris removal. Low banks in
area and no evidence of CR's found. Surveyed by CRS. Ok to proceed.
NT 11 No previously recorded CR's in area. Impacts planned are adjacent to bridge and are disturbed and
heavily scoured. No CR's. Surveyed by CRS. Ok to proceed.
NT 12 No previously recorded CR's in area. No CR's. Surveyed by CRS. Ok to proceed.
NT 13 No previously recorded CR's in area. Survey focused on streambank stabilization areas. No CR's
discovered. Location will primarily involve debris removal. Surveyed by CRS. Ok to proceed.
NT 14 No previously recorded CR's in area. Survey focused on streambank stabilization areas. Significant
nursery agricultural impacts in area. No CR's discovered. Location will primarily involve debris
removal. Surveyed by CRS. Ok to proceed.
NT 15 No previously recorded CR's in area. Survey focused on streambank stabilization areas. Significant
nursery agricultural impacts in area. No CR's discovered. Location will primarily involve debris
removal. Surveyed by CRS. Ok to proceed.
NT 16 No CR's previously recorded in area. Location will primarily involve debris removal. No evidence of
CR's found. Surveyed by CRS. Ok to proceed.
NT 17 Low potential for impact to CR's FO to survey
NT 18 No previously recorded CR's in area. Very low terrace, and very scoured area. Area floods
frequently. No CR's. Surveyed by CRS. Ok to proceed.
NT 19 Low potential for impact to CR's FO to survey
PC 1 Low potential for impact to CR's FO to survey
PM1 Low potential for impact to CR's FO to survey
RB 1 Low potential for impact to CR's FO to survey
RC 1 No previously recorded CR's in area. Very disturbed soils in APE - re-routed stream & scoured area.
No CR's. Surveyed by CRS. OK to proceed.
SB 1 Newland Low potential for impact to CR's FO to survey
SB 1 V.Crucis Low potential for impact to CR's FO to survey
SC 1 Low potential for impact to CR's FO to survey
so 1 Low potential for impact to CR's FO to survey
TMC 1 Low potential for impact to CR's FO to survey
TMC 2 Low potential for impact to CR's FO to survey
TMC 3 Low potential for impact to CR's FO to survey
TMC 4 Low potential for impact to CR's FO to survey
TMC 5 Low potential for impact to CR's FO to survey
UNR 4 Low potential for impact to CR's FO to survey
UNT 1 Low potential for impact to CR's FO to survey
UNT 2 Low potential for impact to CR's FO to survey
LINT 3 Low potential for impact to CR's FO to survey
LINT 5 Low potential for impact to CR's FO to survey
LINT 6 Low potential for impact to CR's FO to survey
LINT 7 Low potential for impact to CR's FO to survey
LINT 8 Low potential for impact to CR's FO to survey
Federally Threatened and Endangered Species Review
Based upon a memo submitted by Brian Cole of the United States Fish and Wildlife
Service (USFWS), dated June 21, 2005, no listed species or their habitats occur on this
site. The USFWS concur with the determination that the activities proposed at this site
will not affect endangered or threatened species or their habitats.
Erosion and Sediment Control Plan
Emergency Watershed Protection Program
Avery County
The following erosion and sediment control measures will be incorporated into all stream
repair sites.
1. The Contractor shall minimize vegetation disturbance by only working on the
stream bank and channel that is in need of repair. Existing buffers shall not be
disturbed unless directed by the designer.
2. The Contractor shall only enter the stream channel as shown on the plans or
directed by the designer. These stream accesses shall conform to the design
standards shown in the attached detail drawings. Timber mats may be used as a
substitute for rock per the approval of the designer.
3. The Contractor shall limit all bank and channel disturbance to activities that can
be completed by the end of each working day such that the work would remain in
place during an overnight storm event.
4. All equipment and uninstalled materials shall be removed from the channel at the
end of each working day and secured safely from potential out-of-bank flow
events that may occur prior to performing additional work.
5. Graded stream banks shall be stabilized with temporary and permanent seed and
coir fiber matting at the end of each working day. Seeding and coir fiber
matting specifications are included with this plan.
6. Stockpiles shall remain at least fifteen feet from flowing water and outside of the
top of bank. Silt fence shall be placed at the base of the stockpile between the
stockpile and the channel and must function to receive stockpile runoff before
entering the channel. Silt fence shall conform to design standards shown in the
detail drawings.
7. Temporary vegetation and permanent herbaceous vegetation shall be established
on all disturbed areas not already stabilized with matting, within five days after
construction is completed.
8. Permanent woody vegetations species are listed in the vegetation specifications;
planting details are also included.
Buck Engineering 1 of 8 River Works
Riparian Seed List
Scientific name
Agrostis alba
Carex vulpinoidea
Elymus virginicus
Juncus efsus
Panicum clandestinum
Polygonunl pennsylvanicum
Bidens frondosa
Coreopsis lancolata
Cassia fasclculata
Verbesina alternifolia
Common Name % of Mix
Redtop 15%
Fox Sedge 10%
Virginia Wild Rye 20%
Soft Rush 5%
Deer Tongue 15%
Smart-weed 5%
Beggers Ticks 5%
Lance leafed Coreopsis 15%
Partridge Pea 5%
Wingstem 5%
Seed at full rate of 15 lbs/acre along stream banks and in any stream buffer and wetland
areas.
Riparian Buffers
Trees and Shrubs
Trees and shrubs will be used to provide permanent vegetation for EWP repair sites.
Species used shall be selected from the following list:
Shrub and Small Trees
Scientific nalne Coninion nalne
Salix sericea Silky Willow
Xanthorhiza simplicissima Yellowroot
Physocarpus opulifolius Ninebark
Cornus amonum Silky Dogwood
Hainamelis virginiana Witch-hazel
Carpinus caroliniana Ironwood
Corylus americana Hazel-nut
Alnus serrulata Tag Alder
ostrya virginiana Hornbeam
Spirea tomentosa Hardhack
Rhododendron arborescens Smooth Azalea
Rhododendron maximum Rosebay Rhododendron
Cephalanthus occidentalis Button Bush
Rea virginica Virginia Sweetspire
Calycanthus floridus Sweet Shrub
Leucothoe axillaris var. editorum Dog Hobble
Hydrangea arborescens Mountain Hydrangea
Sambucus canadensis Elderberry
Buck Engineering 3 of 8 River Works
Erosion Control Matting
Ecostakes
Provide wooden stake not less than 12 in. (300 mm) in length with a notch cut 1 in. (25
mrn) from the top. These stakes shall be used to stake the matting along the slopes.
Wooden 3 ft. stakes spaced approximately 4 ft. apart shall be used to secure the matting
at the toe of slope. The toe stakes shall have a minimum 1-inch by 1-inch cross-section
and shall be designed so that the matting can not slide past the exposed end of the stake.
Refer to the attached details and specifications for EWP work for more information.
Coir Fiber Matting
The erosion control matting shall be a machine-produced mat of 100% coconut fiber with
the following properties:
Matrix 100% Coconut Fiber
Weight 20 oz/SY (678 gm/m2)
Tensile Strength 1348 x 626 lb/ft minimum (1650.5 x 766.5 kg/m)
Elongation 34% x 38%
Open Area (measured) 50%
Thickness 0.30 in minimum (7.6 mm)
Flexibility (mg -cm) 65030 x 29590
Recommended Flow 11 feet/second (3.35 m/s)
Size 6.6 x 164 ft (120 SY) or (100 SM)
"C" Factor 0.002
Place the coir fiber matting immediately upon final grading. Provide a smooth soil
surface free from stones, clods, or debris that will prevent the contact of the matting with
the soil. Apply seed prior to installing matting. Begin at the bottom of the slope by
anchoring the matting in a 6-inch (15 em) deep by 6-inch (15 cm) wide trench. Backfill
and compact the trench after staking. Walking backward down the stream, allow the
matting to unroll slowly; ideally the matting roll will rest against your shin as you walk.
Stake the matting according to recommended stake pattern for specific product and slope.
(See stake pattern guide that comes with the product.) Place matting in full contact with
the soil.
The edges of the parallel matting must be staked with approximately 2 inches (5 cm) of
overlap such that the edge of the downstream matting is under the one just upstream.
When matting must be spliced down the slope, place matting end over end (shingle style)
with approximately 6 inches overlap. Drive stakes through the overlapped area.
Place stakes across the matting at ends, junctions and trenches approximately 1.3 ft apart.
Place stakes along the outer edges, down the center of each strip of matting and along all
lapped edges approximately 2 ft apart. Cut excess matting and anchor at the end of the
slope.
Buck Engineering 5 of 8 River Works
Construction Sequence of Events
Construction shall be performed at the EWP site in accordance with the plans and in
general accordance with the following sequence:
1. Mobilize equipment and materials to the site.
2. Set up construction access pads, staging areas, haul roads, and silt fences.
3. Install stream access ramps.
4. Excavate and grade banks and construct in-stream structures.
5. Seed and mat graded banks and immediately upon reaching final grades.
6. Stabilize all disturbed soil with temporary and permanent seed prior to leaving the
site each day and prior to moving to the next work area.
7. Dispose of excess materials at approved off-site locations.
8. Remove stream access ramps.
9. Remove silt fence and seed and mulch staging areas to restore these areas to pre-
project conditions.
10. Demobilize grading equipment from the site. Remove construction access pads.
11. Plant bank, floodplain and buffer woody vegetation and live stakes during the
dormant season.
Buck Engineering 7 of 8 River Works
TYPICAL STRUCTURE PLACEMENT
LOG VANE
MAT BANKS WITH COIR
(SEE SPECS)
MAT BANKS WITH COIR FIBER MATTING
(SEE SPECS)
,- LOG WEIR
'Zo
MAT BANKS WITH COIR FIBER MATTING
(SEE SPECS)
TOP OF BANK
RE
1. GENERALLY LOG WEIRS, ROOT WADS,
LOG VANES AND COIR FIBER MATTING
WILL BE INSTALLED IN THE LOCATION
AND SEQUENCE AS SHOWN.
2. ADDITIONAL STRUCTURES OR CHANGES
TO STRUCTURE LOCATIONS MAY BE MADE
BY THE DESIGN ENGINEER DURING
CONSTRUCTION.
6000 Rsoancy Par -y S-, 200
IWrs`i!?i Gerry. NoM G?rvlln? 3)311
Phone: [phone]
Fax. 91"63-6490
L

ROOT WADS
(NUMBERAND
SIZE TO BE
DETERMINED
IN THE FIELD)
FEE%r0/
BANKS
(SEE SPECS)
Ui
W
U1
z O
FI
MAT BANKS WITH COIR FIBER MATTING
(SEE SPECS)
NOTES:
1. COIR FIBER MATTING TO BE INSTALLED ON
ALL RESTORED STREAMBANKS.
2. IF ROOT WADS DO NOT COVER ENTIRE SLOPE ON OUTSIDE
OF MEANDER BENDS, COIR FIBER MATTING IS NEEDED.
TYPICAL STRUCTURE PLACEMENT
TEMPORARY SILT FENCE
NOTES:
1. USE FILTER FABRIC A MINIMUM OF 36" IN WIDTH AND
FASTEN ADEQUATELY TO THE WIRE AS DIRECTED
BY THE ENGINEER.
2. PROVIDE 5' STEEL POST OF THE SELF-FASTENER
ANGLE STEEL TYPE.
8000 Regency Parkway Suits 200
Cary, North Carolina 27511
Phone: [phone]
Fax: [phone]
FILTER FABRIC
f
COMPACTED FILL
f '

I
-111
-
4"
EXTENSION OF FABRIC
INTO TRENCH
STEEL POST- 2'-0" DEPTH
SILT FENCE
6' b1AXIMUM
ROOT WADS WITHOUT TRANSPLANTS
CROSS SECTION VIEW
NTS
COIR FIBER MATTING
FLOOD PLAIN BERM (0.5' MAX. HT.) BERM(S)
7 NOT TO EXTEND BEYOND
LIMITS OF ROOT WADS.
10-15 FEET LONG
>10' DIAMETER -
7
TOP OF BANK
FOOTER LOG > 12" DIAMETER INSTALLED BELOW STREAMBED
(OPTIONAL PER DIRECTION OF ENGINEER)
ROOT WADS
PLAN VIEW
NTS
O?
OPTIONAL
COVER LOG
ANCHOR COVER LOG
UNDER FOOTER LOGS
OR WITH A BOULDER.
ROOT WAD
TRANSPLANTS OR BOULDERS
ROOT WADS WITH TRANSPLANTS
CROSS SECTION VIEW
NTS
FOOTER LOG FOR
TRENCHING METHOD
ONLY
FLOOD PLAIN
TOP OF BANK
BERM (0.5'MAX. HT.) BERM(S)
NOTES:
NOT TO EXTEND BEYOND TRENCHING METHOD:
LIMITS OF ROOT WADS. IF THE ROOT WAD CANNOT BE DRIVEN INTO THE BANK OR THE BANK
NEEDS TO BE RECONSTRUCTED, THE TRENCHING METHOD SHOULD
BE USED. THIS METHOD REQUIRES THAT A TRENCH BE EXCAVATED
BANKFULL STAGE FOR THE LOG PORTION OF THE ROOT WAD. IN THIS CASE, A FOOTER
LOG SHOULD BE INSTALLED UNDERNEATH THE ROOT WAD IN A TRENCH
EXCAVATED PARALLEL TO THE BANK AND WELL BELOW THE STREAMBED.
(
{ ? ONE-THIRD OF THE ROOT WAD SHOULD REMAIN BELOW NORMAL BASE
U
A /?. FLOW CONDITIONS.
NOTES
DRIVE POINT METHOD:
SHARPEN THE END OF THE LOG WITH A CHAINSAW BEFORE 'DRIVING"
IT INTO THE BANK ORIENT ROOT WADS UPSTREAM SO THAT THE STREAM
FLOW MEETS THE ROOT WAD AT A SO-DEGREE ANGLE, DEFLECTING THE
WATER AWAY FROM THE BANK A TRANSPLANT OR BOULDER SHOULD BE
PLACED ON THE DOWNSTREAM SIDE OF THE ROOT WAD IF A BACK EDDY
IS FORMED BY THE ROOT WAD. THE BOULDER SHALL BE APPROXIMATELY
4'X S X 2'.
ROOT WADS
LIVE STAKING
TOP
. i- TOE OF SLOPE
BOTTOM OF CHANNEL
CROSS SECTION VIEW
6'-8' SPACING
2'-3' SPACING
TOP OF
STREAMBANK
TOE OF
PLAN VIEW
TOP OF STREAMBANK
PLANT STAKES FROM TOP OF BANK
TO TOE OF BANK IN A DIAMOND SHAPED
STAGGERED PATTERN
SQUARE CUT TOP
BUDS FACING UPWARD
LIVE CUTTING
MIN. 12' DIA 2'- 3' LENGTH
ANGLE CUT
30 -45 DEGREES
LIVE STAKE DETAIL
OTE
PLAN VIEW
?7 n 8000 Regency Parkway Suite 200
Cary, North Carolina 27511
Phone: [phone]
?' I ti ` '' I ' `• Fax: [phone]
1. STAKES SHOULD BE CUT AND INSTALLED ON THE SAME DAY.
2. DO NOT INSTALL STAKES THAT HAVE BEEN SPLIT.
3. STAKES MUST BE INSTALLED WITH BUDS POINTING UPWARDS.
4. STAKES SHOULD BE INSTALLED PERPENDICULAR TO BANK
5. STAKES SHOULD BE 12 TO 2 INCHES IN DIAMETER AND 2 TO 3 FT LONG.
6. STAKES SHOULD BE INSTALLED LEAVING 1/5 OF STAKE ABOVE GROUND.
LIVE STAKING
EROSION CONTROL MATTING
PLACE COIR FIBER MATTING IN 6 INCH DEEP
TRENCH, STAKE, BACKFILL, AND COMPACT
.,- TOP OF STREAMBANK
TYPICAL MATTING STAKE
NOTES
1. BANKS SHOULD BE SEEDED PRIOR TO
PLACEMENT OF MATTING.
2. PLACE COIR FIBER MATTING ACCORDING TO
MANUFACTURER RECOMMENDATIONS.
3. MATTING STAKES SHOULD BE PLACED
IN A DIAMOND SHAPED PATTERN.
THE WOOD STAKE SHALL BE THE NORTH AMERICAN
GREEN ECOSTAKE OR APPROVED EQUAL WITH THE
FOLLOWING DIMENSIONS:
LEG LENGTH 11.00 IN 27.94 CM
HEAD WIDTH 1.25 IN 3.18 CM
HEAD THICKNESS 0.40 IN 1.02 Ch1
LEG WIDTH 0.60 IN 1.52 CM) (T PERED TO POINT)
LEG THICKNESS 0.401N 1.02 CM
TOTAL LENGTH 12.00 IN 30.48 CM
DITCH
0 • e • 0 0 0 0 • • • 0
TOP OF - O - -- -- O -- - -- - -- ? -- 0- - -- ? -- - - ? '
STREAMBANK, - - -- -- - -- - -- - -- - -- -- - - -- - -- -- - _G
0 e • 0 • 0 0 0 0 0 • 0
o • • 0 0 • • 0 0 0 0
0 o e o • o 0 o e o 0 0
o • • o o • • o e • • e
0 0 0 0 0 0 0 • • 0 0 0
PLAN VIEW
KPF 8000 Regency Parkway Suite 200
Cary, North Carolina 27511
Q Phone: [phone]
Fax: [phone]
DITCH
TOP OF STREAMBANK
STAKES
COIR FIBER MATTING TO BE
EXTENDED TO TOE OF SLOPE
EROSION CONTROL MATTING
PLANTING SPECIFICATIONS
TOP OF STREAMBANK

NOTES:
1. PLANT BARE ROOT SHRUBS AND TREES TO THE WIDTH OF THE
BUFFER AS SHOWN ON THE PLANS.
2. ALLOW FOR 6-10 FEET BETWEEN PLANTINGS, DEPENDING ON SIZE
3. LOOSEN COMPACTED SOIL
4. PLANT IN HOLES MADE BY A MATTOCK DIBBLE, PLANTING BAR,
OR OTHER APPROVED MEANS.
5. PLANT IN HOLES DEEP AND WIDE ENOUGH TO ALLOW THE ROOTS
TO SPREAD OUT AND DOWN WITHOUT J-ROOTING.
6. KEEP ROOTS MOIST WHILE DISTRIBUTING OR WAITING TO PLANT
BY MEANS OF WET CANVAS, BURLAP, OR STRAW.
7. HEEL-IN PLANTS IN MOIST SOIL OR SAWDUST IF NOT PROMPTLY
PLANTED UPON ARRIVAL TO PROJECT SITE.
BOTTOM OF CHANNEL
CROSS SECTION VIEW OF BARE ROOT PLANTING
NOTES:
1. WHEN PREPARING THE HOLE FOR A POTTED PLANT OR SHRUB
DIG THE HOLE 8 -12 INCHES LARGER THAN THE DIAMETER OF THE
POT AND THE SAME DEPTH AS THE POT.
2. REMOVE THE PLANT FROM THE POT. LAY THE PLANT ON ITS SIDE
IF NECESSARY TO REMOVE THE POT.
3. IF THE PLANT IS ROOTBOUND (ROOTS GROWING IN A SPIRAL
AROUND THE ROOT BALL), MAKE VERTICAL CUTS WITH A KNIFE
OR SPADE JUST DEEP ENOUGH TO CUT THE NET OF ROOTS.
ALSO MAKE A CRISS-CROSS CUT ACROSS THE BOTTOM OF THE BALL
4. PLACE THE PLANT IN THE HOLE.
TOP OF STREAMBANK 5. FILL HALF OF THE HOLE WITH SOIL (SAME SOIL REMOVED FOR BACKFILL).
6. WATER THE SOIL TO REMOVE AIR POCKETS AND FILL THE REST
OF THE HOLE WITH THE REMAINING SOIL.

BOTTOM OF CHANNEI
CROSS SECTION VIEW OF CONTAINER PLANTING
Kor Q 8000 R Cry, North Carolina
3-548811 00 ncy '< `'% Phone: Fax: [phone] BARE ROOT / CONTAINER PLANTING
19- 1
FLOW
ROCK CROSS VANE TYPE 2
113 OF TOP WIDTH TYPE 2 CROSS VANE FOR GRAVEUSAND BED STREAMS
0 CHANNEL WITH DRAINAGE ARIES LESS THAN 12mi= 2
I MIN
C
Y B GRADE Y J
E < POINT ¢ CHANNEL BED CHANNEL BED
a o o ¢ WELL GRADED MI.X
Lu LL
Q
Z ~ _ -3 ~ Z
m Co
O I *" O FILTER FABIC
a A ttr a
o v-?' 0 6' MINIMUM
A
VANEy SECTION A - A
ARM
' SCOUR POOL SANKFULL STAGE HEADER ROCK
STREAM BANK
S1L1 y i SfCI FLOW ? 4X TO 7X VANE ARM ?
NO GAPS ?` ELEVATMIIOND
B VANE ANGLE BETWEEN `/\\ \ \ \
20' TO 30' BOULDERS NFOOTER ROCK
I C
PROFILE VIEW B - B
VANE ARM
VANE ARM LENGTH FT
PLAN VIEW INVERT WIDTH FT
VANE ARM SLOPE %
VANE ANGLE o Ft nu, _ /- CROSS VANE INVERT/GRADE POINT
NOTES FOR ALL VANE STRUCTURES:
1. BOULDERS MUST BE AT LEAST 4'x Tx 2'.
2. INSTALL FILTER FABRIC FOR DRAINAGE BEGINNING AT THE MIDDLE OF THE HEADER
ROCKS AND EXTEND DOWNWARD TO THE DEPTH OF THE BOTTOM FOOTER ROCK AND
THEN UPSTREAM TO A MINIMUM OF SIX FEET.
3. DIG A TRENCH BELOW THE BED FOR FOOTER ROCKS AND PLACE FILL ON UPSTREAM
SIDE OF VANE ARIA. BETWEEN THE ARM AND STREAMSANK
4. CONSTRUCT FOLLOWING ANGLE AND SLOPE SPECIFICATIONS.
5. USE CLASS 1 STONE TO FILL GAPS ON UPSTREAM SIDE OF BOULDERS, AND
CLASS A STONE TO FILL GAPS ON UPSTREAM SIDE OF CLASS 1 STONE.
6. AFTER ALL STONE HAS BEEN PLACED, FILL IN THE UPSTREAM SIDE OF THE STRUCTURE
WITH ON-SITE ALLUVIUM TO THE ELEVATION OF ONE HALF THE HEADER ROCK
8000 Regency Parkway Suite 200
Cary, North Carolina 27511
Phone: [phone]
Fax: [phone]
FILTER FABIC FOR DRAINAGE
(SEE SPECIFICATIONS) -
PROFILE VIEW C - C
ROCK CROSS VANE TYPE 2
ROCK VANE
W
LO
D
zd.
m
NO GAPS -
BETWEEN
BOULDERS
V3
BOTTOM
WIDTH
OF
CHANNEL,
•-?? FLOW
(SCOUR P(
BOTTOM W
PLAN VIEW
SCOUR POOL (EXCAVATED) PER
DIRECTION OF ENGINEER
NOTES FOR ALL VANE STRUCTURES:
1. BOULDERS MUST BE AT LEAST 4'x Tx 2.
2. INSTALL FILTER FABRIC FOR DRAINAGE BEGINNING AT THE MIDDLE OF THE
HEADER ROCKS AND EXTEND DOWNWARD TO THE DEPTH OF THE BOTTOM
FOOTER ROCK AND THEN UPSTREAM TO A MINIMUM OF TEN FEET.
3. DIG A TRENCH BELOW THE BED FOR FOOTER ROCKS AND PLACE FILL ON
UPSTREAM SIDE OF VANE ARM, BETWEEN THE ARM AND STREAMSANK
4. START AT BANK AND PLACE FOOTER ROCKS FIRST AND THEN HEADER (TOP) ROCK
5. CONTINUE WITH STRUCTURE, FOLLOWING ANGLE AND SLOPE SPECIFICATIONS.
6. AN EXTRA BOULDER CAN BE PLACED IN SCOUR POOL FOR HABITAT IMPROVEMENT.
7. USE CLASS 1 STONE TO FILL GAPS ON UPSTREAM SIDE OF BOULDERS, AND CLASS
A STONE TO FILL GAPS ON UPSTREAM SIDE OF CLASS 1 STONE.
8. AFTER ALL STONE HAS BEEN PLACED, FILL IN THE UPSTREAM SIDE OF THE
STRUCTURE WITH ON-SITE ALLUVIUM TO THE ELEVATION OF THE TOP OF
THE HEADER ROCK
9. START SLOPE AT 213 TO 1 TIMES THE BANKFULL STAGE.
rj?QJ(Z ,?r 8000 Ra Prrkway 51200
LQ) WW?K Cary, North Carolina 27 27511
Phone: [phone]
i7 ' Fax: [phone]
TOP OF STREAh18ANK-?__
FLOW -? 4%
STREAMBED
ELEVATION
BACKFILL (ON-SITE ALLWIU41)
CLASS A STONE
CLASS 1 STONE
HEADER ROCK
\- FOOTER ROCK
SCOUR POOL
(EXCAVATED)
PROFILE VIEW
CLASS A STONE- \ F HEADER ROCK
1'
BACKFILL (ON-SITE ALLUVIUM)
FOOTER ROCK
FILTER FABRIC -?I 1'
1.2'--? CLASS 1 STONE
L10' h11NIMUh
SECTI ON A - A
ROCK VANE
CONSTRUCTED RIFFLE
ELEVATION POINT
EROSION CONTROL
- MATTING -
Dmax '1BANKFULL
B
C
B
CENTER BOULDER 2"-4- -
C BELOW ADJACENT BOULDERS
SECTION B - B
PLAN VIEW
EROSION CONTROL
MATTING
BANKFULL
18" NOM. THICKNESS WELL GRADED MY TOE
OF CLASS A, B, AND 1 STONE
SECTION C - C
9000 Rs9 Parkway Suits 200
Cary, North Carolina 27511
Q Phone: [phone]
t ' '-? tz ! Fax: [phone]
HEAD OF RIFFLE BURY BOULDERS 2.4" BELOW BED
18" NOM. THICKNESS WELL GRADED LILY
OF CLASS A, B. AND 1 STONE
G?\0 RIFFLE
c :;H
5' MINIMUM-}?--?i FILTER ' g
FABRIC
PROFILE A - A
REACH 1 2
V%bkf ft
Dmax ft
CONSTRUCTED RIFFLE
J-HOOK VANE
w
a
J
m
s
113 BOTTOM 1!3 BOTTOM
W DTH OF WIDTH OF
CHANNEL CHANNEL
FLOW

20' TO 30' I LEAVE 1'- 2'
it GAPS
r.
AE

'
NO GAPS
BETWEEN
BOULDERS

I SCOUR
?
J POOL \

/ ` SCOUR POOL (EXCAVATED)
--?' PER DIRECTION OF ENGINEER
12 TO 213 BANKFULL
FLOW -ter
STREAMBED ELEVATION
BACKFILL (ON-SITE ALLUVIUM OR NO. 57 STONE) w
CLASS ASTONE /
CLASS 1 STONE)
CLASS A STONE
PLAN VIEW
NOTES FOR ALL VANE STRUCTURES:
1. BOULDERS MUST BE AT LEAST 4'x3'x2'.
2. INSTALL FILTER FABRIC FOR DRAINAGE BEGINNING AT THE MIDDLE OF THE HEADER
ROCKS AND EXTEND DOWNWARD TO THE DEPTH OF THE BOTTOM FOOTER ROCK AND
THEN UPSTREAM TO A MINIMUM OF TEN FEET.
3. DIG A TRENCH BELOW THE BED FOR FOOTER ROCKS AND PLACE FILL ON UPSTREAM
SIDE OF VANE ARM, BETWEEN THE ARM AND STREAMBANK
4. START AT BANK AND PLACE FOOTER ROCKS FIRST AND THEN HEADER (TOP) ROCK
5. CONTINUE WITH STRUCTURE, FOLLOWING ANGLE AND SLOPE SPECIFICATIONS.
6. AN EXTRA BOULDER CAN BE PLACED IN SCOUR POOL FOR HABITAT IMPROVEMENT.
7. USE CLASS 1 STONE TO FILL GAPS ON UPSTREAM SIDE OF BOULDERS, AND CLASS A
STONE TO FILL GAPS ON UPSTREAM SIDE OF CLASS 1 STONE.
B. AFTER ALL STONE HAS BEEN PLACED, FILL IN THE UPSTREAM SIDE OF THE STRUCTURE
WITH ON-SITE ALLUVIUM TO THE ELEVATION OF THE TOP OF THE HEADER ROCK
e000 Regency Parkway Suite 200
FRI Gary, North Carolina 27511
Phone: [phone]
Fax: [phone]
BACKFILL (ON-SITE ALLUVIUM OR NO. 57
FILTER FABRIC
PROFILE VIEW
HEADER ROCK
- FOOTER ROCK
SCOUR POOL
(EXCAVATED)
HEADER ROCK
11 BED
J FOOTER ROCK
CLASS 1 STONE
10' MINIMUM
SECTION A - A
"J" HOOK VANE
BANKFULL
LOG STEP / POOL
,
/ BURY INTO BEDIBANK
5 FEET OR GREATER A
(TYPICAL)
FLOW
12" DIALETER
OR GREATER
PROTECT BANK USING
SEE DETAIL
BURY INTO BEDIBANK
5 FEET OR GREATER
(TYPICAL)
FILTER FABRIC
(TYPICAL)
SECTION A - A'
FLOW
STREAMED
t' BELOW MAX
POOL DEPTH
?- THALIhEG
A'
12 TO 2/3
BANKFULL
FOOTER LOG
PROFILE VIEW
12" DIAMETER
OR GREATER
i
r ?
A'
PLAN VIEW
6000 Regency Parkway Suite 200
Gary, North Carolina 27511
Phone: [phone]
Fax: [phone]
NOTES:
1. LOGS WITHOUT ROOT MASS MAY BE USED IF APPROVED BY PROJECT ENGINEER
LOG STEP / POOL
113 113 113
BOTTOM BOTTOM BOTTOM
WIDTH OF WIDTH OF WIDTH OF
FLOW
Li YA
0 'T£n L' ?: '7S:
J 3
Y
T BACKWATER
POOL
° i ?,
I
SCOUR
POOL I
NO GAPS I RI
BETWEEN
BOULDERS j
PLAN VIEW
8000 Regency Parkway Suits 200
Cary, North Carolina 27511
Phone: [phone]
4 Fax: [phone]
BANKFULL-?
FLOW-
STREAM STREAM BED
w
N
J
D
Q
C3
6'-8'
4% TO BY.
BACKFILL (ON-SITE ALLUVIUM)
#57 STONE FILTER FABRIC
CLASS A STONE
CLASS 1 STONE PROFILE VIEW
# 57 STONE
BACKFILL (ON-SITE ALLUVIUM) 1
-__-?qTREAMBED 1
CLASS A STONE -?'` "+ `_ o-rT'1 ) J
FILTERFABRIC- 1
10' 111NIMUh1
SECTION A - A
FOOTER ROCK
CLASS 1 STONE
'-- FLOODPLAIN SILL
NO
TES FOR ALL y6NF CTRI If:T11RFC'
POOLS (EXCAVATED) PER 1.
2 BOULDERS MUST BE AT LEAST 4' x Tx 2.
INSTALL FILTER FABRIC FOR DRAINAGE BEGINNING AT THE MIDDLE OF THE HEADER
.
DIRECTION OF ENGINEER
DEPTH = AVERAGE BANKFULL DEPTH x 1.5 TO 2.0 ROCKS AND EXTEND DOWNWARD TO THE DEPTH OF THE BOTTOM FOOTER ROCK
AND THEN UPSTREAM TO A MINIMUM OF TEN FEET.
3. DIG A TRENCH BELOW THE BED FOR FOOTER ROCKS AND PLACE FILL ON UPSTREAM

4 SIDE OF VANE ARM, BETWEEN THE ARM AND STREAM BANK
START AT BANKFULLAND PLACE FOOTER ROCKS FIRST AND THEN HEADER (TOP) ROCK
.
5 CONTINUE WITH STRUCTURE, FOLLOWING ANGLE AND SLOPE SPECIFICATIONS.
.
8. AN EXTRA BOULDER CAN BE PLACED IN SCOUR POOL FOR HABITAT IMPROVEMENT.
7. USE CLASS 1 STONE TO FILL GAPS ON UPSTREAM SIDE OF BOULDERS, AND
CLASS A STONE TO FILL GAPS ON UPSTREAM SIDE OF CLASS 1 STONE.
8. AFTER ALL STONE HAS BEEN PLACED, FILL IN THE UPSTREAM SIDE OF THE STRUCTURE
WITH ON-SITE ALLUVIUM TO THE ELEVATION OF THE TOP OF THE HEADER ROCK
DOUBLE DROP ROCK CROSS VANE
HEADER ROCK