20051306 Ver 1_Complete File_20050711

Triage Check List

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Date: 07/18/05

Project Name: Avery County EWP - DSR KC4
DWQ #:05-1306
County: Avery

To:

Kevin Barnett, Asheville Regional Office

60-day Processing Time: 7/11/05 to 9/9/05

From: Cyndi Karoly Telephone: [phone]

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The file attached is being forwarded to your for your evaluation.
Please call if you need assistance.

D Stream length impacted
D Stream determination
D Wetland determination and distance to blue-line surface waters on USFW topo maps
Minimization/avoidance issues
D Buffer Rules (Neuse, Tar-Pamlico, Catawba, Randleman)
D Pond fill
D Mitigation Ratios
Ditching
D Are the stream and or wetland mitigation sites available and viable?
D Check drawings for accuracy
D Is the application consistent with pre-application meetings?
Cumulati ve impact concern
D
D
D

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!

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EWP-Avery County, North Caroh~~ ,-./"6> ~
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DSR No. KC4 - Kentucky Creek ~~~ (j'
French Broad River Basin &'~
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20051306

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Scope of Work
This site is on Kentucky Creek behind Riverdale Nursery offNC 181 between Braswell Road
and Sugar Mountain Road #2. 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 ofNRCS's review.
. Agent Authorization Letter for Avery County.
. Vicinity Map
. Repair Plan
. Table 1. Property owners of sites proposed for repair.
. Cultural Resources Review.
. Threatened and Endangered Species Review.
. Erosion and Sediment Control Plan
. Details and Specifications

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USACE Action ID No. ~~B~Q No. 2 0 0 5 1 3 0 6
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/ A".)

Office Use Only:

Form Version May 2002

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I. Processing

1. Check all of the approval(s) requested for this project:
[g] Section 404 Permit D
D Section 10 Permit D
[g] 401 Water Quality Certification

Riparian or Watershed Buffer Rules
Isolated Wetland Permit from DWQ

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: D

4. Ifpayment 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: D

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: D

II. Applicant Information

1. Owner/Applicant Information
Name: Robert Wiseman (County Manae:er)
Mailing Address: County Administrative Offices
P.O. Box 640
Newland. N C 28657

Telephone Number: 828-733-8201 Fax Number: 828-737-9395
E-mail Address:[e-mail]

2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached ifthe Agent has signatory authority for the owner/applicant.)
Name: Dou~ Smith
Company Affiliation: Buck Ene:ineerine: PC
Mailing Address: 8000 Ree:ency Parkway. Suite 200
Carv. NC 27511

Telephone Number: 919-463-5488 Fax Number: 919-463-5490
E-mail Address:dsmith(iV.buckene:ineerine:.com

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III. Project Information

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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: Averv County EWP, DSR KC4-Kentuckv Creek.

2. T.I.P. Project Number or State Project Number (NCDOT Only): N/ A

3. Property Identification Number (Tax PIN): See attached Table 1.

4. Location
County: Averv Nearest Town: Linville
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers, landmarks, etc.): The location of each site IS
attached on the EWP Index Map and provided in each individual site repair plan.

5. Site coordinates, if available (UTM or Lat/Long): Attached in site repair plan.
(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): N/A

7. Nearest body of water (stream/river/sound/ocean/lake): Kentuckv Creek

8. River Basin: French Broad River
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h20.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: A site specific description is in each site lJlan.

10. Describe the overall project in detail, including the type of equipment to be used: Specific
repair activities for the site are provided in the site repair plans which are attached. Repair
activities proposed for the site include: reshalJing eroding bend. installing one rock vane, one

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grade control J hook installing rip rap along approximately 200 feet of the left bank sloping
matting and seeding erosion on right bank and live staking the banks.

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 carrying out. The purpose of the work is to r~air damaged stream reaches that
are unstable and continuing to cause loses to personal and public property and to public
resources bv 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 In 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.
To our knowledge permits have not been issued for work at these sites 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

VI. Proposed Impacts to Waters of the United StateslWaters of the State

It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. 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: Impacts from this work will be
minimized whenever possible. However to accomplish these needed repairs impacts may be

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realized from temporary increased turbidity, removal of aggraded bed material and temporary
loss of herbaceous vegetation. Long-term impacts will be an increase in stream bank
stability, stable dimension and profile, and improved vegetative cover.

2. Individually list wetland impacts below:

Wetland Impact Area of Located within Distance to
Site Number Type of Impact* Impact 100-year Floodplain** Nearest Stream Type ofWetland***
(indicate on map) (acres) (yes/no) (linear feet)

* 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 FEMA Map Service Center at 1-800-358-9616, or
online at http://www.fema.gov.
*** 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: 0
Total area of wetland impact proposed: 0

3. Individually list all intermittent and perennial stream impacts below:

Length
Stream Impact of Average Width Perennial or
Site Number Type of Impact* Impact Stream Name** of Stream Intermittent?
(indicate on map) (linear Before Impact (please specify)
feet)
1 Stream bank 500' Kentucky Creek 15' -30' Perennial
stabilization

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
wwW.USgS.gov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com,
www.mapquest.com. etc.).

*

Cumulative impacts (linear distance in feet) to all streams on site: 500'

. 4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.) below:

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Open Water Impact Area of Name of Water body Type of Waterbody
Site Number Type ofImpact* Impact (lake, pond, estuary, sound,
(indicate on map) (acres) (if applicable) bay, ocean, etc.)
N/A

*

List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.

5. 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): D uplands D stream D 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:

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 each site will be over 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 ifleaks occur during construction the equipment will be replaced or
repaired immediately. Sediment and erosion control measures. including silt fence. stoned
entrances. protected stock pile areas. diversions and check dams. will be employed to minimize
sediment movement off site.

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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/strmgide.html.

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 off site), 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.
N/A

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:

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

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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 (federaVstate) funds or the use of public
(federal/state) land?
Yes [2] No D

If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPAlSEPA)?
Note: If you are not sure whether a NEPAlSEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes D No [2]

If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a
copy of the NEP A or SEP A final approval letter.
Yes D No [2]

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.

Will the project impact protected riparian buffers identified within 15ANCAC 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 D No [2] 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 * Impact Multiplier Required
(square feet) Mitigation
1 3
2 1.5
Total

*

Zone I extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone I.

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

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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 stonnwater controls proposed in order to protect surface waters and wetlands
downstream from the property.
There will be no change in impervious acreage. Existing proiect sites are agricultural lands and
will remain in this 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, waste water will not be generated bv this proiect

XIII. Violations (required by DWQ)

Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes D No [g]

Is this an after-the-fact permit application?
Yes D No [g]

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).
N/A

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ent's Signature Date
s valid only if an authorization letter from the applicant is provided.)

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Plan Review Checklist
EWP-Avery County, North Carolina
DSR KC4

I t:7k~;/ L.-/. the Natural Resource Conservation Service Agent for Avery
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 Auurove Disapurove Approve with Modifications
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Additional comments:

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Agent's Signature

, Natural Resource Conservation Service Agent

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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 ,york. Specifically, employees of

Buck Engineering may take those actions necessary to obtain environmental penuits from the U. S.

Army Corps of Engineers, N. C. Division of Water Quality, and N. C. Division of Land Quality.

Robert WisernO J ~

Date: 6-- 9- Os

. County Manager for A very County

Office: Avery County Courthouse, Newland, NC 28657

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Field Crew:

Time/Date:

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. Date oI.erial photography: 1"8

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DSR No.

KC4

Location: Avery County between Sugar
Mountain Rd. #2 and Braswell Rd.

Site Assessed By: JR, DT
Date Assessed: 5/12/2005
Length of .
A t Approximately 500 feet
ssessmen :

N36.073409, W081.901591
W t b d Kentucky Creek
a er 0 y:

Debris removal
X Bank sloping
X Bank stabilization

_ Channel realignment ~ Seeding
~ In-stream structures Adjust channel dimension
X Riparian planting

Summary Evaluation of Conditions:

The reach begins between Braswell Rd. and Sugar Mountain Rd. #2 on the back side of Riverdale Nursery off HWY
181. The upper sections of the reach are moderately stable. The right bank is severely eroded along a bend. Bank
erosion is also prevalent on the left banks next to the greenhouse and is undermining the structure supports in areas.
This site may be hard to access. Access through Dezern property (off Braswell Rd).

Recommendations for Improvements:

Reshape eroding bend and install one rock vane and one grade control J hook (25' arms) in bend.

Install rip rap along - 200 ft of left bank where bank is eroding around greenhouses (75 cu.yds or 120 tons)

Slope, mat and seed erosion on right bank. Install live stakes.

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50

100

200

300
Feet

Site KC4
HWY 181 and Braswell Rd

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ENGINEERING.A1Ir.
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SUBJECT

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PROJECT NO.

Prepared By

Approved By

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scale: 4 sq./inch

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I EWP Group 5 - KC4 PHOTO LOG

Eroding left banks upstream of greenhouses

Greenhouses next to stream

~ ----

Rip Rap eroding
banks around
greenhouses

,~--:~~..

Erosion next to Greenhouse

Eroded banks on the right channel.

..

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GrOUD 5

Table1

Site Tax PIN NAME ADDRESS CITY STATE ZIP LATITUDE LONGITUDE
KC4 184501285689 BRASWELL. MARGARET S 181 HWY OFF NEWLAND NC 286570000 36.07450 -81.90098
KC4 184501275725 BENFIELD JULIAN LEE & JULIA 260 COLE HOLLOVl NEWLAND NC 286570000 36.07250 -81.90173
KC4 184501284011 DEZERN LYNDA H. BRASWELL PINNACLE NC 270430000 36.07319 -81.90202

.,

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,N

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 ofDSR'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 ofNRCS planned activities to effect
cultural resources (CR's). In addition, photographs ofthe 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 ofa 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 Y4 inch hardware mesh. The following Excel file list ofEWP 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.

CC3

CR Review Comments
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR'g FO to survey
Low potential for impact to CR's FO to survey
No previous recorded CR's. Very low terrace over stream & disturbed soils in APE. Surveyed by
CRS. Ok to proceed.
No previous recorded CR's. Very low terrace over stream & disturbed soils in APE. Surveyed by
CRS. Ok to proceed.
No previous recorded CR's. Very low terrace over stream & disturbed soils in APE. Surveyed by
CRS. Ok to proceed.

DSR #s
BC 1 Elk Mills
BC 1 Elk Park
BC2
CB 1
CC 1

CC2

DSR #s
CC4
CH 1
Cross Cr 1
Cross Cr 2
Curtis Cr 1
DellingerBr1
ER 1
ER2
ER3

ER5

ER6
ER7
FC 1
FC2
GP 1
HB 1
HP 1
K3
K4
KC 1
KC2
LEC 1
LHC 1
LL 1
LR 1

LR2

LR3

LR4
LR5
LR6
LS 1
LS2
LS3
LS5
LS6
LS7
LS8
LS9
LS 10
LS 11
LS 12
MB1
Mrk 123
MT 1
MT2
MT3
MT4
NT 1
NT2

r

-r

~

CR Review Comments
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
No impact to CR's in area. All CR's are outside of APE. All work planned in-stream. Primarily debris
removal. Surveyed by CRS. Ok to proceed.
No previously recorded CR's in area. Very disturbed soils in APE. No CR's. Surveyed by CRS. OK
to proceed.
Low potential for impact to CR's FO to survey
No previous recorded CR's. Alluvial, silty soils. Surveyed by CRS. Ok to proceed.
Small Area, OK for FO to Survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
No previously recorded CR's area. APE is roadside. Soils are disturbed. No CR's. Surveyed by CR
Specialist. OK to proceed.
No previously CR's recorded in APE. This reach is primarily just debris removal or requiring fill. No
CR's in APE. Surveyed by CRS. Ok to proceed.
No previously recorded CR's in APE. Only debris removal scheduled. No CR's in APE. Surveyed by
CRS. Ok to proceed.
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
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.

..,

#'/ ~

~4

DSR #s
NT3
NT4

NT5

NT6

NT7
NT8

NT9

NT10

NT 11

NT12
NT13

NT14

NT15

NT16

NT 17
NT18

NT19
PC 1
PM1
RB 1
RC 1

SB 1 Newland
SB 1 V.Crucis
SC 1
SO 1
TMC 1
TMC2
TMC3
TMC4
TMC5
UNR4
UNT1
UNT2
UNT3
UNT5
UNT6
UNT7
UNT8

CR Review Comments
Low potential for impact to CR's FO to survey - primarily debris removal.
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.
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.
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.
Low potential for impact to CR's FO to survey (previously surveyed - No CR's)
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.
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.
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.
No previously recorded GR's in area. Impacts planned are adjacent to bridge and are disturbed and
heavily scoured. No CR's. Surveyed by CRS. Ok to proceed.
No previously recorded CR's in area. No CR's. Surveyed by CRS. Ok to proceed.
No previously recorded GR'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.

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.
No previously recorded CR's in area. Survey focused on stream bank stabilization areas. Significant
nursery agricultural impacts in area. No CR's discovered. Location will primarily involve debris
removal. Surveyed by CRS. Ok to proceed.
No CR's previously recorded in area. Location will primarily involve debris removal. No evidence of
GR's found. Surveyed by CRS. Ok to proceed.
Low potential for impact to CR's FO to survey
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.
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
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.
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to GR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to GR's FO to survey

DSR #s
WC1
WF 1
WF2
W01
W02
W03
WP1
WP2

r

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~

CR Review Comments
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey (previously surveyed - No CR's)
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
Low potential for impact to CR's FO to survey
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.

<,

,4

"'

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 ofthe 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

10f8

River Works

TECHNICAL SPECIFICATION

Vee:etation Plantin2

General Seeding
Seeding should be done immediately upon completion of final grading. Apply seed prior
to installing matting. Prepare the soil surface so that it is smooth and free from stones,
clods, or debris that will prevent the contact ofthe matting with the soil. Fertilizer and
lime are generally not necessary on most projects, particularly not on sites that have been
used for agriculture production or cattle grazing. Urban soils may require amendments.
Seed should be broadcast with a centrifugal seeder or by hand, at the full rate along
stream banks and in stockpile areas. In all areas where permanent seeding is used in
addition to the temporary seed, mixing ofthe seed for broadcasting is acceptable. Seed
and amendments (if needed) should be covered to a depth of 1/2 to 1 inch with soil by
using a hand rake, drag or other tillage equipment.

Seeding may also be done with a hydro seeder. Wood cellulose fiber will not be
acceptable as a substitute for straw mulch. A suitable tracer shall be used to clearly
identify areas hydro seeded. A minimum of 500 lbs. per acre of wood cellulose fiber or a
non-toxic water base dye may be used as a tracer. Seed shall not remain in water
containing fertilizer more than 45 minutes before being used. All products used to
hydroseed shall be non-toxic to aquatic organisms.

Temporary Seeding
For temporary seeding, apply the following vegetation at the listed rates and times.

Temporary Seeding (September to March):
Rye grain 3 lbs per 1,000 sq ft or

130 Ibs per acre

Temporary Seeding (April to August):
Foxtail Millet lib per 1,000 sq ft or

40 lbs per acre

A combination of the two temporary seed types shall be used during the boundary months
of March, April, August and September to ensure survival. In all disturbed areas where
no permanent seed is being used (i.e. yard or agricultural field) and temporary seed is not
desired at the higher rate, broadcast temporary seed at the lower rate of approximately 1/2
the fulllbs/acre stocking rate. When used in conjunction with permanent seed mix, apply
at ~ the fulllbs/acre rate.

Permanent Seeding
Permanent seeding will be accomplished using the mix listed below:

Buck Engineering

20f8

River Works

~

..

'.

.'

/

"'

Riparian Seed List

Scientific name
Agrostis alba
Carex vulpinoidea

Elymus virginicus

Juncus effisus
Panicum clandestinum

Polygonum pennsylvanicum
Eidens frondosa

Coreopsis Ian co lata
Cassia fasciculata
Verbesina alternifolia

Common Name
Redtop
Fox Sedge
Virginia Wild Rye
Soft Rush
Deer Tongue
Smartweed
Beggers Ticks
Lance leafed Coreopsis
Partridge Pea
Wingstem

% of Mix
15%
10%
20%
5%
15%
5%
5%
15%
5%
5%

Seed at full rate of 15 Ibs/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 name
Salix sericea
Xanthorhiza simplicissima
Physocarpus opulifolius
Cornus amonum
Hamamelis virginiana
Carpinus caroliniana
Corylus americana
Alnus serrulata
Ostrya virginiana
Spirea tomentosa
Rhododendron arborescens
Rhododendron maximum
Cephalanthus occidentalis
Itea virginica
Calycanthus floridus
Leucothoe axil/aris var. editorum
Hydrangea arborescens
Sambucus canadensis

Common name
Silky Willow
Yellowroot
Ninebark
Silky Dogwood
Witch-hazel
Ironwood
Hazel-nut
Tag Alder
Hornbeam
Hardhack
Smooth Azalea
Rosebay Rhododendron
Button Bush
Virginia Sweetspire
Sweet Shrub
Dog Hobble
Mountain Hydrangea
Elderberry

Buck Engineering

30f8

River Works

LargeTrees
Scientific name
Aesculus octandra
Tsuga canadensis
Platanus occidentalis
Acer robnlm
Quercus alba
Quercus rubra
Liriodendron tulipifera
Tsuga carolinianum
Betula lenta

Common Dame
Buckeye
Canadian Hemlock
Sycamore
Red Maple
White Oak
Red Oak
Tulip Poplar
Carolina Hemlock
Cherry Birch

Trees shall be planted as either bare rooted or containerized material. Trees should be
planted at a rate of 400 stems/acre (roughly 10 feet on center) where EWP repairs have
been accomplished. Planting of this material will be done during the dormant season
(late fall and winter of2005-2006). Refer to the attached details and specifications for
more information.

Stream banks
Live Staking
Species used for live staking shall be taken from the following species:
ScieDtific Dame Common Dame
Comus amomum Silky Dogwood
Sa/ix sericea Silky Willow
Sambucus canadensis Elderberry
Cepha/anthus occidentalis Buttonbush
Sa/ix nigra Black Willow

Stake at 2-3 foot spacing on the outside of all meander bends. Stake at 6-7 foot spacing
on the inside of meander bends and all tangent sections. Note this is appropriate for most
rural systems. Urban or flashy systems should be staked at higher rates. Utilize as
diverse a species group as feasible and make sure that black willow constitutes less than
25% of total stakes used.

Containerized Plants:
Containerized shrub material may also be used on the stream banks to increase the
diversity. Applications and spacing should reflect that of live stake material.

Mulching
Mulching shall be used to provide temporary protection of soil surfaces from erosion.
Mulching should be performed within 48 hours of seeding. Grain straw mulch should be
applied on seeded areas at a rate of75 bales per acre. Apply mulch uniformly.

Buck Engineering

40f8

River Works

~

i'

~

f

...

Erosion Control Mattine:
Ecostakes
Provide wooden stake not less than 12 in. (300 mm) in length with a notch cut 1 in. (25
mm) 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 I-inch by I-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 Ib/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 -em) 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 ofthe slope by
anchoring the matting in a 6-inch (15 cm) 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 ofthe parallel matting must be staked with approximately 2 inches (5 cm) of
overlap such that the edge ofthe 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

River Works

50f8

Temporary Stream Access Ramps
Stream access ramps shall be constructed using either rock or timber mats in locations as
shown on the plans or as directed. Grading shall be performed only to the extent needed
to form a stable ramp connecting the stream bank grade to the streambed. The Contractor
shall determine the appropriate number of timber mats and ramp angle according to the
equipment that will be using the ramp. Stream access ramps are temporary and shall be
removed and the areas restored to their original state when they are no longer needed or
permanent measures are installed.

Sediment Fence
Geotextile sediment fences shall be used to trap sediment from areas oflimited runoff.
Sediment fences shall be properly anchored to prevent erosion under them. These works
are temporary and shall be removed and the areas restored to their original state when
they are no longer needed or permanent measures are installed. Locations for sediment
filters are shown on the plans. Refer to sediment fence specifications (6.62) in the NC
Erosion and Sediment Control Planning and Design Manual for material and installation
requirements.

Gravel Construction Entrance/Exit
Temporary gravel construction entrances shall be constructed as shown on the plans and
according to specification 6.06 of the NC Erosion and Sediment Control Planning and
Design Manual.

In-stream Structures
In-stream structures include w-weirs, cross vanes, j-hook vanes, log vanes, and wing
deflectors. The quantity of in-stream structures to be constructed shall follow approved
plans, but may be affected by conditions encountered during construction

Boulders used for in-stream structures shall be relatively flat on either side in the same
dimension, preferably the long dimension, and must have relatively smooth ends. No
more than 5% of the boulders shall be smaller than 3'x2'x2'. Boulders larger than
6'x4'x3' shall be permitted. Boulders found on-site and approved for use by the
Developer will be used to the extent feasible.

The Contractor shall construct in-stream structures with equipment capable of moving
and accurately placing boulders of approximate dimensions 6'x4 'x3'. If suitable for
backfill, excavated material shall be placed on the upstream side of structures or as
directed. Unless otherwise approved by the Developer, excavation to prepare the
subgrade for the installation of in-stream structures shall be consecutive and continuous.
Once the excavation of a structure has begun, the structure shall be completed by the end
of the workday. All equipment shall be removed from the stream at the end of each
workday. Any accumulation of sediment in the channel shall be cleaned as needed
during construction and at the end of construction. No separate payment will be made for
this clean-up work.

Buck Engineering

60f8

River Works

.:

..

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..

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

River Works

70f8

Details and Specifications for EWP Work

Planting
. Bare Root/Container Planting
. Brush Mattress
. Tree & Shrub Planting Details
. Live Staking

Erosion Control
. Erosion Control Matting
. Silt Check
. Silt Fence
. Typical Pump Around Operation
. Temporary Gravel Construction Entrance
. Ford Stream Crossing
. Ford Stream Crossing 2
. Temporary Ford Stream Crossing W/ Flume Pipe

Stream Repair Structures
. Typical Structure Placement
. Typical Plan View & Profile
. Constructed Riffle
. Double Drop Rock Cross Vane
. Double Wing Deflector
. "J" Hook Vane
. Log Vane
. Log Vane 2
. Log Step Pool
. Rock Vane
. Rock Cross Vane Type 1
. Rock Cross Vane Type 2
. Root Wads
. Single Wing Deflector
. Step Pool Channel

Buck Engineering

80f8

.4
<t:
... ~
..

River Works

..

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,

TEMPORARY SILT FENCE

r

6' MAXIMUM

-,

~

FILTER FABRIC

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,

COMPACTED FILL

STEEL POST - Z.{1' DEPTH

EXTENSION OF FABRIC
INTO TRENCH

B U C K 8000 Regency Parkway Suite 200
Cary, North Carolina 27611
A Phone: [phone]
E: N C: I N r: [0.: HI N G ~~ Fax: [phone]
4:.

SILT FENCE

SILT CHECK

fLOW ~
~ ! z
z <(
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1== I- 1,~2'1
CONSTRUCTION AREA UPSTREAM en
en ~
--- fLOW_
"..- "- 2
( STIWNG BASIN ')
(2 fT. MAX DEPTH)
"- ./
'----
CLASS A STONE
BOULDERS
EXISTING CHANNEL CROSS SECTION
PLAN VIEW

NOTES:
CLEAN OUT STILUNG BASIN Of TRAPPED SEDIMENT PRIOR TO REMOVAL.

B U C K 8000 Regency Parkway Suite 200
Cary, North Carolina 27511
I;. Phone: [phone]
F: N G. [N E F: 1<.[ N G~ fax: [phone]

SILT CHECK

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NOTES FOR ALL VANE STRUCTURES'
1, BOULDERS MUST BE AT LEAST 4' x 3' x 2'.
2. INSTAlL FILTER FABRIC FOR DRAINAGE BEGINNING AT THE MIDDLE OF THE HEADER
ROCKS AND EXTEND DOV'iNWARD 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, BElWEEN 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.
8. AFTER ALL STONE HAS BEEN PLACED, FILL IN THE UPSTREAM SIDE OF THE STRUCTURE
WITH ON-SITE AlLUVIUM TO THE ELEVA nON OF THE TOP OF THE HEADER ROCK.

1/3 BOTTOM
WIDTH OF
CHANNEL

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1/3 BOTTOM
WIDTH OF
CHANNEL

NO GAPS
BElWEEN
BOULDERS
/"'......,
. \
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. \
/ "
. SCOUR \
i POOL "
o \
. 0
\ 0
. "I

\" ./L SCOUR POOL (EXCAVATED)
... - - -' PER DIRECTION OF ENGINEER

PLAN VIEW

B UC K 8000 Regency Perkway Suite 200
Cary, North Carolina 27511
:.; N C I N E: F;" r;o-; c~ P~~~~:9~~~-:~~~:~8

J-HOOK VANE

1/2 TO 213 BANKFULL

PROFILE VIEW

FOOTER ROCK

SECTION A - A

"J" HOOK VANE

.'

({
'\.;

1/3
BOTTOM
WIDTH
OF
CHANNEL

FLOW

~

...............,
/ ",

(SCOUR POO~

, .
......-../

SCOUR POOL (EXCAVATED) PER
DIRECTION OF ENGINEER

NO GAPS
BElWEEN
BOULDERS

BOTTOM WIDTH

PLAN VIEW

NOTES FOR ALL VANE STRUCTURES'
1. BOULDERS MUST BE AT lEAST 4' X 3' X 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, BElWEEN THE ARM AND STREAMBANK
4. START AT BANK AND PLACE FOOTER ROCKS FIRST AND THEN HEADER (TOP) ROCK
5. CONTINUE VIIITH STRUCTURE, FOLLOVIIING 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 VIIITH ON-SITE ALLUVIUM TO THE ELEVATION OF THE TOP OF
THE HEADER ROCK
9. START SLOPE AT 213 TO 1 TIMES THE BANKFULL STAGE.

B U C K 8000 Regency Parkway Suite 200
Cary, North Carolina 27511
A Phone: [phone]
).; N C 1 N F: E PI .N C ~ Fax: [phone]

ROCK VANE

TOP OF STREAM BANK

STREAMBED
ELEVATION

BACKFILL (ON-5ITE ALLUVIUM)
CLASS A STONE
CLASS 1 STONE

PROFILE VIEW

FILTER FABRIC

CLASS A STONE

BACKFILL (ON-5ITE AlLUVIUM)

FOOTER ROCK

SECTION A - A

ROCK VANE

..

':t

\.
.~

PLACE COIR FIBER MAlTING IN 6 INCH DEEP
TRENCH, STAKE, BACKFILL, AND COMPACT

TOP OF STREAMBANK

.'

"'If
\~

EROSION CONTROL MATTING

~
1. BANKS SHOULD BE SEEDED PRIOR TO
PLACEMENT OF MAlTING.
2. PLACE COIR FIBER MAlTING ACCORDING TO
MANUFACTURER RECOMMENDATIONS.
3. MAlTING STAKES SHOULD BE PLACED
IN A DIAMOND SHAPED PATIERN.

. .. .
. . ". .
. . . . . . . . . . .
. . . . . . . . . . .
:".:".:".:" '"

PLACE COIR FIBER MAlTING IN 6 INCH DEEP
TRENCH, STAKE, BACKFILL, AND COMPACT

: ....; ....: .', ..... ',': ....; ....:. ',': ....:. .....: .....: . .. . .:. . '; . '; .',
:".:.,.:...:".:".:".:" ',' '.' :".:".:".:".:".:".:".:

BOTIOM OF CHANNEL

THE WOOD STAKE SHALL BE THE NORTH AMERICAN
GREEN ECO-STAKE OR APPROVED EaUAl WITH THE
FOLLOWING DIMENSIONS:
LEG LENGTH
HEAD WIDTH
HEAD THICKNESS
LEG WIDTH
LEG THICKNESS
TOTAL LENGTH

CROSS SECTION VIEW

'; ,';':': ,';": ..:.:.......:.:.;.:.:..:.:..:.:..:.:.. :':':',":":',:
..'.:".:,'.:,'.:,' .,'.:,'.:,'.:,'.:,'.:,'.:,'.:.'.:,'.:,'.:,'.:.

11.00 IN 27.94 CM
1.25 IN 3,18 CM
0.401N 1.02CM
0.60 IN 1.52 CM APERED TO POIN
0.40 IN 1.02 CM
12.00 IN 30.48 CM

DITCH

TOP OF
STREAMBANK

B U C K 8000 Regency Perkway Suite 200
Cary, North Carolina 27511
C. Phone: [phone]
F: N C 1 N F]O; f~:r. N c~ Fax: [phone]

TYPICAL MATTING STAKE

.

.

DITCH
TOP OF STREAMBANK

.

.

.

.

.

.

.

.

.

---------------------------------
.......... .

--------------------------------
.......... .

. . . . . . . . . . .
. . . . . . . . . . .
. . . . . . . . . . .
. . COIR FIBER MAlTING TO BE
. EXTENDED TO TOE OF SLOPE
PLAN VIEW

EROSION CONTROL MATTING

LIVE STAKING

BOTTOM OF CHANNEL

. . . . . . .
,:':';':', ':',:': :.: :.: .:':',:':',:':':":'.: ,',:': .:.: :":';': :':.:
:".:".:".:".: .,.:.,.:., ",:...:" .:., .:., .:".:",:",: ".:

. . . . . . . .
.:. ':.:. ':',:': :. ':',: .,'.: . ': . ',: :.:. ':',: ':',: ': : ','.:.': ,: ':.: ':.:. ':.:.

. .' '., '.,
'0 " " .

CROSS SECTION VIEW

6'-a' SPACING

~ 2'-3'SPACING

PLAN VIEW

B U C K 8000 Regency Parkway Suite 200
Cary, North Carolina 27511
A Phone: [phone]
r; N C l. N E r: PIN C ~ Fax: [phone]

TOE OF SLOPE

TOP OF
STREAMBANK

l',
~
\
'4

. ..
. '. .': .': .'.. . :':'. ':'. .

TOP OF STREAMBANK

.,...;..:...;.-.;....:.'-'-..:.:~..:.:~_:_:..:..:....."- 'l
. . . . . . . .
'...... '...'.. ...t.. '.......
:,".::.:'..:.:',:'.:'i:":':""':':':'l
.: . ,-,: ' .-':. ''-'' .:.:. . .- t .: -: ':"':'.:
. : " . : 'f' : . . . : 'f' : " . : . i' : . : . : .. PLANT STAKES FROM TOP OF BANK
: . . :. '.: " ...'.:.. .....:.... . . '. TO TOE OF BANK IN A DIAMOND SHAPED
........ ,......,. .'....,.. ,.... ...... STAGGERED PATTERN
'.::'. ::..: :':: t: :".: :".: ::': :.~~
.,...... .."..... ,.,.. t.' ..... '.....
,: :.:.',: :.:',: :,:.':. :.:',: :.::.: :.:':. :.:::. :.:.~

PLAN VIEW

SQUARE CUT TOP
BUDS FACING UPWARD

UVE CUTTING
MIN. 112" DIA

2' - 3' LENGTH

ANGLE CUT ~ l
30 - 45 DEGREES ~

LIVE STAKE DETAIL

~

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 1/2 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