20051651 Ver 1_Complete File_20050831

0t0? W A T QG
Michael P. Easley, Governor
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
Robert Wiseman, County Manager
Avery County
Post Office Box 640
Newland, NC 28657
Subject Property: Curtis Creek EWP (DSR - CurtiCr1)
DWQ Project # 05-1651
Avery County
a[2@§ffl99
SEP 2 0 2005
DENR - WATER QUALITY
Approval of 401 Water Quality Certification with Additional Conditio?is ?`D'???S?r"1?TE?e?At?o++
Dear Mr. Wiseman:
You have our approval, in accordance with the attached conditions and those listed
below, to place fill within or otherwise impact 1,130 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] /lntemethttp://h 2 o. en r. state. nc. us/ncwetla n ds

An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper
Avery County:
Page 2 of 6
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 1,130 feet Curtis 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:
Pagel of 6
September 8, 2005 e
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
I
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 consistant 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/ncwetiands. 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:
Page 6 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 Klkhb
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: 05-1651. EWP.CurtisCreek.Approval
Triage Check List
Date: 09/01/05 Project Name: Avery County EWP
DSR CurtiCrl
DWQ #:05-1651
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. CurtiCrl - Curtis Creek
Watauga River Basin
20051 651
Scope of Work
This site is on Curtis Creek along Curtis Creek Road (SR 1321) southeast of NC 194. 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
• 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
D
AUG 3 1 2005
DENR W,
tt ?gtr STMAV TERB,Cy
Office Use Only: Form Version May 2002
USACE Action ID No. DWQ No. 2 0 0 5 1 085 1
(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
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 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: ?
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ?
II. Applicant Information D ?k9
D
1. Owner/Applicant Information AUG 3 2005
Name: Robert Wiseman (County Manager) E_oENR-w?ATER„...
Mailing Address: County Administrative Offices S??osrorztitw?rERea?;crT-
P.O. 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: Doug Smith
Company Affiliation: Buck Enj!ineerinl! PC
Mailing Address: 8000 Regency Parkway, Suite 200
Carv. NC 27511
Telephone Number: 919-463-5488 Fax Number: 919-463-5490
E-mail Address: dsmitli i ,buckenpineerinl!.com
III. Project Information
Page I of 9
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: Avery EWP, DSR CurtiCrl - Curtis 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: Avery Nearest Town: Elk Park
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
7. Nearest body of water (stream/river/sound/ocean/lake): Curtis Creek
8. River Basin: Watauga
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://l12o.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 plan. The site is
confined between residential property and SR 1321.
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: removing aggraded rocky debris from the channel to
Page 2 of 9
return the channel to the proper dimension and profile, grading bankfull benches in areas
where the channel can no longer access its floodplain, removing unstable woody debris, and
jgradin,g and plantinjg unstable stream banks to provide long-term stability. This work will
require the use of a trackhoe with hydraulic thumb and a dump truck to remove rock debris
from the site.
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 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 11) 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 States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a
delineation map, whether or not impacts are proposed to these systems. Wetland and stream
evaluation and delineation forms should be included as appropriate. Photographs may be
included at the applicant's discretion. If this proposed impact is strictly for wetland or stream
mitigation, list and describe the impact in Section VIII below. If additional space is needed for
listing or description, please attach a separate sheet.
Page 3 of 9
I . 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, removal of agt;raded 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
Site Number
indicate on ma
Type of Impact* Area of
Impact
acres Located within
100-year Floodplain**
(es/no Distance to
Nearest Stream
linear feet
Type of Wetland***

* List each impact separately and identify temporary impacts. Impacts include, but arc not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainagc, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains arc 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.fcml.fov.
*** 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
Install structures,
Stream bank
1-A& 1-H stabilization, Channel
realignment & removal 1,130' Curtis Creek 12' - 24' Perennial
of aggradcd rock debris
and woody debris
* 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 afler, 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 intcmct 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: 1.130'
Page 4 of 9
4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.) below:
Open Water Impact
Site Number
indicate on ma
Type of Impact* Area of
Impact
acres
(if Name applicable) Waterbody Type of Waterbody
(lake, pond, estuary, sound,
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): ? uplands ? stream 0 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 treks 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 an
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 fence, stoned
Page 5 of 9
entrances, protected stock pile areas, diversions and check dams, will be employed 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 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
littl2:Hli2o.enr.state.nc.us/ncwetlands/strmgide.litml.
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.
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.ne.us/wrp/index.htm. If use of
Page 6 of 9
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
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 (federaUstate) funds or the use of public
(federal/state) land?
Yes ® No ?
If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No
If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a
copy of the NEPA or SEPA final approval letter.
Yes ? No ?
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Neuse), 15A NCAC 213 .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify )?
Yes ? No ® 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.
Page 7 of 9
Zone* Impact
(square feet Multiplier Required
Mitigation
1 3
2 1.5
Total
* Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 213.0242 or.0260.
XI. Stormwater (required by DWQ)
Describe impervious acreage (both existing and proposed) versus total acreage on the site.
Discuss stormwater controls proposed in order to protect surface waters and wetlands
downstream from the property.
There will be no change in impervious acreage. Existing nroiect sites are agricultural or
residential 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 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
XIV. Other Circumstances (Optional):
Page 8 of 9
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

,kppl cant/Agent's Signature , Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 9 of 9
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 pennitting 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 Wiseman, , County Manager for Avery County
Date: l? '? " d S-
Office: Avery County Courthouse, Newland, NC 28657
DSR No. CurtiCrl (exigency site) Location: Avery County along SR 1321/SR 1324
Site Assessed By: HW, KV
Date Assessed: 5/25/2005
Length of Approximately 1,130 feet
Assessment. Waterbody:
Curtis Creek
X_ Debris removal X Channel realignment X Seeding
X_ Bank sloping X In-stream structures X Adjust channel dimension
X Bank stabilization X Riparian planting
Summary Evaluation of Conditions:
The Curtis Creek stream system is approximately 2.1 miles and contains problematic areas along a 1,130 ft
downstream section (CurtiCrl-A) and a 500 ft UT section upstream (CurtiCrl-H). It appears as though the CurtiCrl-A
channel alignment was slightly altered and a man-made pond was built along the left channel prior to the 2004 storms
but may not have significantly impacted the overall stream competency. However, since the 2004 storms, structures
such as houses and barns located near eroding streambanks along CurtiCrl-A are now threatened along with the
section downstream of the man-made pond. Further upstream, various bank sections appear to have been repaired &
reseeded after the storm damage had occurred and only a few isolated sections contain varying amounts of debris
and bridge damage which pose no long term threat to the stream system. Sections 'A' and 'H' are shown on the
attached parcel maps and a field survey was completed over Section 'A' illustrated in CurtiCrl-A photolog.
Recommendations for Improvements:
The 1,130 ft section of CurtiCrl-A must be repaired to ensure long term stability and function using large scale stream
restoration techniques including Channel realignment, In-stream structures, adjusting channel dimension, and bank
sloping/stabilizing. Our recommendations for repairing CurtisCrl-A are shown on the attached design plans.
Additionally, CurtiCrl-H has woody debris dispersed throughout an approximate 500 ft section that needs to be
removed.
Cost estimate: $106,600.
3195
^ ItIII
__M_ Map Inset
O
r)
t: •�: NkYa IIurN !a
4 -
y } { ,a
c
f
-... � ' , • alit rte,,....
a
1.` r
•\ 1 I ...•Ir . - ,in
Lff AF
♦e
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- -:_
•� 367
\ ` F
}515 ,\ •'""' � t
BU AveryCounty LEGEND
(Group 3) SIte:CurHcCr.1
yZ Avery County EWP
CwK
1: N R I N (: M DSR Sn P—h
(.
Field Crew Topa IS. 0--) 0 150 300 600
StmmrAg Feet
TImNN
Da. - 'Y �
._ r••..Y Data of aerial photography: 1998

99!'
INSTALL J-HOOK VANE
(SEE DETAIL, TYP.)
REMOVE EXISTING TREE
AND REUSE FOR ROOT WADS - N
AT STA. 12+50 '?
EXISTING TREE
EXISTING TREE TO BE PROTECTED
(TYP.) (TYP.)
EXISTING 24" CPP BCP 1
INV. OUT=100.75 ELEV=100.00
EXISTING LEFT
TOP OF BANK
- PROPOSEDLEFT
TOP OF BANK
1
??- 11+00 -- -
__--------- ? 12+0
-- - -
FLOW ' ?-
EXISTING RIGHT
\ TOP OF BANK
\ BEGIN THALWEG
CONSTRUCTION
EXISTING\ STA. 10+00.00
PRIVATE
DRIVE

EXISTING EDGE
OF CHANNEL
A
PROPOSED ?
ALIGNMENT
i
?i
/ EXISTING
p BOULDERS
EXISTING
` BARN
INSTALL ROOT WAD
W/ COVER LOG.
(SEE DETAIL, TYP.)
PROPOSED RIGHT
EXISTING
TOP OF BANK
BOULDERS
STING FENCE
(TYP.)
GRAPHIC SCALE:
0 10 20
HORIZ W&Zt;-.W
x rae
s m "'
t ;."
mZp? :
c? 4j
?U
a
m
INSTALL ROOT WAI
W/ COVER LOG.
(SEE DETAIL, TYP.)
PROPOSED
CONSTRUCTED
RIFFLE
(SEE DETAIL, TYP.)
°? 0 000
'o FLOW_
CII10111"
80ULDER
/EXISTING
OVERHEAD
ELECTRIC
EXISTING
BARN
EXISTING TREE
TO BE PROTECTED
(TYP.)
EXISTING INSTALL J-HOOK VANE
WOODLINE (SEE DETAIL, TYP.)
---
EXISTING 3 ?iV g
BOULDER a=Z ?2, 2
x
PROPOSED LEFT -
TOP OF BANK t p
EXISTING EDGE
OF CHANNEL .
PROPOSED
ALIGNMENT
1?e? . ? ° c o °o o g
°
1.0
PROPOSED RIGHT-
- TOP OF BANK 2
ti
_ Q
EXISTING
PROPOSED
ALIGNMENT BARN
-EXISTING
FENCE
(TYP•)
GRAPHIC SCALE:
HORIZ
11&2?
E6g??
8

INSTALL J-HOOK VANE
(SEE DETAIL, TYP.) END THALWEG -
CONSTRUCTION
INSTALL ROOT WAD STA. 21+55.27
W/ COVER LOG.
(SEE DETAIL, TYP.)
POTENTIAL
EXISTING TREE CONSTRUCTION
,?. ACCESS
?POTENTIAL TO BE PROTECTED
` STAGING ,l (TYP) BCP 3
AREA ?ELEV=98.65
EXISTING z ::a
BOULDER
LO ?N? FXi y a
o OS 6P
- ST/NG qq?z . r
o -FLOW PROP pF
'SOP EXISTING p G ls5l .?>
•_ +? c{ SWING R?F?1/E\
<v 00? ??-
?? EXISTING
_ MAN-MADE
POND
EXISTING
BRIDGE
I ,
PROPOSED
?__7
PROPOSED RIGHT ALIGNMENT
,
TOP OF BANK _
L INSTALL DOUBLE DROP 3
U
EXISTING EXISTING , u
FENCE _i HOUSE CROSS VANE
NC (SEE DETAIL, TYP.)
a?
EXISTING EXISTING
HOUSE OVERHEAD
ELECTRIC
b
0
S
0
GRAPHIC SCALE: '
0 10 20
HORIZ
r+a ?
Enter Desian Data in the Blue Boxes:
Design Riffle Bankfull Area = 40
Design Riffle Width / Depth Ratio = 15
Max Pool Depth = 4
Pool Width = 40
Riffle Side-Slopes = 3 :1
Inside Pool Side-slope = 6 :1
Outside Pool Side-slope = 2 :1
Riffle Pool
Width of Bankfull (Wbkf) 24.5 40.0
Average Depth 1.6 2.4
Maximum Depth (D-Max) 2.3 4.0
Width to Depth Ratio (bkf W/D) 15.0 16.7
Bankfull Area (Abkf) 40.0 96.0
Bottom Width (Wb) 11.0 8.0
Typical Cross-sections
0.0
-0.5 5 10 15 20 25 30 35 40 45
-1.0
-1.5
-2.0
-2.5-
-3.0-
-3.5-
-4.0-
-4.5
Riffle -®-Pool
EWP Group 3 - CurtiCr-1 PHOTO LOG `A', pg.1
Existing bridge.

'y4 s
C 4i ?C _ a?
CuCr-1. Looking downstream at bridge.
bus.. .,
CuCr-l. Looking upstream. CuCr-1. Looking downstream at man-made
& bridge.
Severe Aggradation.
I
J
1
CuCr-1. Looking upstream at man-made pond CuCr-1. Looking upstream at right bank. CuCr-2. Looking downstream.
& cobble deposits.

EWP Group 3 - CurtiCr-1 PHOTO LOG `A', pg.2
Left bank ` + l Right bank
erosion. }``%Gr erosion.

Ell

rv
CuCr-2. Looking upstream at left bank erosion. CuCr-3. Looking upstream at right bank erosion.

CuCr-3. Looking downstream at right bank
aggradation.
EWP Group 3 - CurtiCr-1 PHOTO LOG `A', pg.3

ght
Severe ri

`
bzrk eros.or

+
"'

:
r: r
+
..
.
r
-

< 9
.` Y

CuCr-3. Looking upstream at right bank erosion. CuCr-4. Looking upstream at right bank erosion. CuCr-4. Looking downstream at severe right bank
erosion.

End severe right

? bank erosion.
Miq,? , qt?,, W?t- -
l

:
i

?- sue, ...-. '+?.^e• -.. ;. ..a
S

`? ?a
` - .. -
^r
"

V -
mac?
?
MFW

CuCr-5. Looking upstream at right bank erosion. CuCr-6. End severe right bank erosion. CuCr-5. Looking upstream at bank erosion.

EWP Group 3 - CurtiCr-l PHOTO LOG `A', pg.4
r1
CuCr-5. Potential Construction Entrance. CuCr-5. Potential Construction Entrance.
EWP Group 3 - CurtiCr-1 PHOTO LOG `A', pg.5
Existing 24" CPP
t ?
A
Looking downstream at XSC 1.
F,4, rx
nM1 ??'p
Looking at left bank. Looking at right bank.
Y
3
1

ai
?
y I
Y.

•

+`-Y
I
`w

Looking upstream . Looking upstream at XSC 2. Looking at left bank.

EWP Group 3 - CurtiCr-1 PHOTO LOG `A', pg.6
Severe left
bank erosion.
K ?7 lc?
i
i
Looking at left bank erosion.
EWP Group 3 - CurtiCr-1 PHOTO LOG `H', pg.1

N
CuCr-29. Remove Debris from channel. CuCr-29. Remove Debris from channel. CuCr-29. Looking at stable channel along UT -
Right Fork.
a.
jj:p
A- 71?
ti F M •a.... '.,
a.
CuCr-29. Remove Debris from channel. CuCr-29. Remove Debris from channel. CuCr-29. Remove Debris from channel.
EWP Group 3 - CurtiCr-1 PHOTO LOG `H', pg.2

4 C4 4

~x,b°L aw

F?

CuCr-29. Remove Debris from channel.
30
M-
31 -Ar -.0 . -
Act-

CurtiCrl Parcel Data • Table A
PARCEL TAX PIN NAME ADDRESS CITY STATE ZIP LATITUDE LONGITUDE TYPE LENGTH
1 1839900137455 HEATON CHR''STIAN CHURCH PO BOX 217 ELK PARK NC 28622 36 169644 81 931676 chan real rnment 8 ad. -I ch-n d menslon debns removal bank sla 8 s1aC I2a! on install s!v<tures --d 8 art 100 FT
2 183900137290 MILLS MAXINE PO BOX 235 ELK PARK NC 28622 35 168592 81 941650 <h-nel ream r ent 8 ed-ust channel dimension debns removal bank slo 8 slabilizal•on Install s!mctures seed 8 ant 500 FT
3 183900132424 BALIFF EDDIE GENE 129 WOODLAND VIEW RD CLINTON TN 37716 35168182 819130,19 ch- 1 rea r-t 8 ad,st chanrel dim -n debns removal b-k sI,p 8 slab?!izalon install s!vctures, seed 8 a^t 100 FT
4 193900132500 BAILIFF JAMES D 6549 TAEDA DR SARASOTA FL 34241 39 15918.9 81 943928 an real,.rmert 8 Wh ist charrel d mers?on debrs removal, In- slrr• 8 stabn_atron In tall s'v<turas s 8 art 85 FT
5 18391,10137529 FnR''NOWSKI ROEERT E JR 611 HORNEY CREEK ROAD BANNER ELK NC 28634 36 170078 81 942108 harrwl rnaI r..,,.,ert 8 ad usl cnarrw d,mers nn d-s removal, bark si^ 8 s!aba._a! on tnstall s!v<1ures. seed 8 a^t 250 FT
CurtiCrl Parcel Data -Table H
PARCEL TAX PIN NAME ADDRESS CITY STATE ZIP LATITUDE LONGITUDE TYPE LENGTH
29 183800287410 AMERICAN GENERAL FINANCIAL HWY 221 MOUNTAIN VILLAGE SHOPPING CENTER JEFFERSON NC 28640 36.155502 81.938357
Debris Removal
200 It

30
18300174759
FULLENCAMP, DENNIS J.
2911 NE PINE ISLAND RD
CAPE CORAL
FL
33909
36.153904 1
81.938299
Debris Removal
200 ft
31 183800277491 HORSLEY, ANDREW BRITT & 18 CIRCLE DRIVE BELMONT NC 28012 36.153225 81.938091 Debris Removal 200 It
32 183800168802 FIELDS, WHEELER h1RS 1005 PINEDALE RD APEX NC 27523 36.151658 81.940724 Debris Removal 200 ft
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 '/a 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
CC 4 Low potential for impact to CR's FO to survey
CH 1 Low potential for impact to CR's FO to survey
Cross Cr 1 Low potential for impact to CR's FO to survey
Cross Cr 2 Low potential for impact to CR's FO to survey
Curtis Cr 1 Low potential for impact to CR's FO to survey
Dellinger Br 1 Low potential for impact to CR's FO to survey
ER 1 Low potential for impact to CR's FO to survey
ER 2 Low potential for impact to CR's FO to survey
ER 3 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.
ER 5 No previously recorded CR's in area. Very disturbed soils in APE. No CR's. Surveyed by CRS. OK
to proceed.
ER 6 Low potential for impact to CR's FO to survey
ER 7 No previous recorded CR's. Alluvial, silty soils. Surveyed by CRS. Ok to proceed.
FC 1 Small Area, OK for FO to Survey
FC 2 Low potential for impact to CR's FO to survey
GP 1 Low potential for impact to CR's FO to survey
HB 1 Low potential for impact to CR's FO to survey
HP 1 Low potential for impact to CR's FO to survey
K 3 Low potential for impact to CR's FO to survey
K 4 Low potential for impact to CR's FO to survey
KC 1 Low potential for impact to CR's FO to survey
KC 2 Low potential for impact to CR's FO to survey
LEC 1 Low potential for impact to CR's FO to survey
LHC 1 Low potential for impact to CR's FO to survey
LL 1 Low potential for impact to CR's FO to survey
LR 1 No previously recorded CR's area. APE is roadside. Soils are disturbed. No CR's. Surveyed by CR
Specialist. OK to proceed.
LR 2 No previously CR's recorded in APE. This reach is primarilyjust debris removal or requiring fill. No
CR's in APE. Surveyed by CRS. Ok to proceed.
LR 3 No previously recorded CR's in APE. Only debris removal scheduled. No CR's in APE. Surveyed by
CRS. Ok to proceed.
LR 4 Low potential for impact to CR's FO to survey
LR 5 Low potential for impact to CR's FO to survey
LR 6 Low potential for impact to CR's FO to survey
LS 1 Low potential for impact to CR's FO to survey
LS 2 Low potential for impact to CR's FO to survey
LS 3 Low potential for impact to CR's FO to survey
LS 5 Low potential for impact to CR's FO to survey
LS 6 Low potential for impact to CR's FO to survey
LS 7 Low potential for impact to CR's FO to survey
LS 8 Low potential for impact to CR's FO to survey
LS 9 Low potential for impact to CR's FO to survey
LS 10 Low potential for impact to CR's FO to survey
LS 11 Low potential for impact to CR's FO to survey
LS 12 Low potential for impact to CR's FO to survey
MB 1 Low potential for impact to CR's FO to survey
Mrk 123 Low potential for impact to CR's FO to survey
MT 1 Low potential for impact to CR's FO to survey
MT 2 Low potential for impact to CR's FO to survey
MT 3 Low potential for impact to CR's FO to survey
MT 4 Low potential for impact to CR's FO to survey
NT 1 Low potential for impact to CR's FO to survey
NT 2 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.
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.
SIB 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
Sol 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
LINT 1 Low potential for impact to CR's FO to survey
LINT 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
UNT 7 Low potential for impact to CR's FO to survey
LINT 8 Low potential for impact to CR's FO to survey
DSR #s CR Review Comments
WC 1 Low potential for impact to CR's FO to survey
WF 1 Low potential for impact to CR's FO to survey
WF 2 Low potential for impact to CR's FO to survey (previously surveyed - No CR's)
WO 1 Low potential for impact to CR's FO to survey
WO 2 Low potential for impact to CR's FO to survey
WO 3 Low potential for impact to CR's FO to survey
WP 1 Low potential for impact to CR's FO to survey
WP 2 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
TECHNICAL SPECIFICATION
Vep,etation Plantinp,
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 of the 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 of the 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 hydroseeder. Wood cellulose fiber will not be
acceptable as a substitute for straw mulch. A suitable tracer shall be used to clearly
identify areas hydroseeded. A minimum of 5001bs. 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 lbs per acre
Temporary Seeding (April to August):
Foxtail Millet 1 lb 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 full lbs/acre stocking rate. When used in conjunction with permanent seed mix, apply
at %2 the full lbs/acre rate.
Permanent Seeding
Permanent seeding will be accomplished using the mix listed below:
Buck Engineering 2 of 8 River Works
Riparian Seed List
Scientific name
Agrostis alba
Carex vulpinoidea
Elynucs virginicus
Juncus efsus
Panician clandestinum
Polygonun: pennsylvanicum
Bidens frondosa
Coreopsis lancolata
Cassia fascicidata
Verbesina altenrifolia
Common Name % of Mix
Redtop 15%
Fox Sedge 10%
Virginia Wild Rye 20%
Soft Rush 5%
Deer Tongue 15%
Smartweed 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 naine Common name
Salix sericea Silky Willow
Xanthorhiza simplicissinia Yellowroot
Physocarpus opulifolius Ninebark
Corms amonum Silky Dogwood
Hamamelis virginiana Witch-hazel
Carpinus caroliniana Ironwood
Corylus americana Hazel-nut
Ahms serridata Tag Alder
Ostrya virginiana Hornbeam
Spirea tomentosa Hardhack
Rhododendron arborescens Smooth Azalea
Rhododendron maxinnan Rosebay Rhododendron
Cephalanthus occidentalis Button Bush
Itea virginica Virginia Sweetspire
Calycanthus floridus Sweet Shrub
Leucothoe axillaris var. editorum Dog Hobble
Hydrangea arborescens Mountain Hydrangea
Sanibucus canadensis Elderberry
Buck Engineering 3 of 8 River Works
LargeTrees
Scientifie name Common name
Aescuhis octandra Buckeye
Tsuga canadensis Canadian Hemlock
Platanus occidentalis Sycamore
Acer rubrunt Red Maple
Quercus alba White Oak
Quercus rubaa Red Oak
Liriodendron tulipifera Tulip Poplar
Tsuga carolinianum Carolina Hemlock
Benda lenta 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 of 2005-2006). 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:
Scientific name
Cornus antonuun
Salix sericea
Sambucus canadensis
Cephalanthus occidentalis
Salix nigra
Common name
Silky Dogwood
Silky Willow
Elderberry
Buttonbush
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 of 75 bales per acre. Apply mulch uniformly.
Buck Engineering 4 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
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 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
Weight
Tensile Strength
Elongation
Open Area (measured)
Thickness
Flexibility (mg -cm)
Recommended Flow
Size
100% Coconut Fiber
20 oz/SY (678 gm/m2)
1348 x 626 lb/ft minimum (1650.5 x 766.5 kg/m)
34% x 38%
50%
0.30 in minimum (7.6 mm)
65030 x 29590
11 feet/second (3.35 m/s)
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 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 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
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 of limited 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 6 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
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 8 of 8 River Works
TEMPORARY GRAVEL CONSTRUCTION ENTRANCE
PUBLIC ROAD
6" MINIMUM THICKNESS OF
WASHED CLASS A STONE
NOTES:
SPECIFICATION NO. 6.06 - CONSTRUCTION ACCESS 'N.C. EROSION AND SEDIMENT
CONTROL PLANNING AND DESIGN MANUAL DECEMBER 1993"
8000 Regency
North Parkway Suite 200 TEMPORARY GRAVEL
BUCK Cary, North Carolina 27511
Phone: [phone]
Fax: [phone]
CONSTRUCTION ENTRANCE
CONSTRUCTED RIFFLE
ELEVATION POINT
CENTER ----ERR
BELOW ADJACENT BOULDERS
SECTION B - B
PLAN VIEW
EROSION CONTROL
MATTING
BANKFULL
18" NOM. THICKNESS WELL GRADED MIX TOE
OF CLASS A, B, AND 1 STONE
SECTION C - C
?"}? Ilf.....???Q 8000 Regency Parkway Suite 200
IFod1?J Cary, North Carolina 27511
Phone: [phone]
Fax: [phone]
HEAD OF RIFFLE BURY BOULDERS 2-4" BELOW BED
18" NOM. THICKNESS WELL GRADED MIX
OF CLASS A, B, AND 1 STONE
G?\OE RIFFLE
I?
V MINIMUM FILTER d
FABRIC
PROFILE A - A
REACH 1 2
VWkf ft
Dmax ft
CONSTRUCTED RIFFLE
EROSION CONTROL
EROSION CONTROL MATTING
PLACE COIR FIBER MATTING IN 61NCH 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 PATI ERN.
THE WOOD STAKE SHALL BE THE NORTH AMERICAN
GREEN ECO-STAKE OR APPROVED EQUAL WITH THE
FOLLOWING DIMENSIONS:
LEG LENGTH 11.00 IN (27.94 CM)
HEAD WIDTH 1.25 IN 3.18 CIA)
HEAD THICKNESS 0.40 IN 1.02 CM
LEG WIDTH 0.60 IN 1.52 CM TAPERED TO POINT)
LEG THICKNESS 0.40 IN 1.02 CM
TOTAL LENGTH 12.00 IN 30.48 CM
DITCH
• • • • • • • • • • • •
TOP OF - - -- - -- - -- - -- - -- - -- - - -- I -- - - •

STREAMBANK L
-
• • • • • • • • • • • •

• • • • • • • • • • • •
• • • • • • • • • • • •
• • • • • • • • • • • •
PLAN VIEW
?/7 8000 Regency Parkway Suite 200
??1'?[? Cary, North Carolina 27511
Phone: [phone]
Fax: [phone]
DITCH
TOP OF STREAMBANK
STAKES
COIR FIBER MATTING TO BE
EXTENDED TO TOE OF SLOPE
EROSION CONTROL MATTING
J-HOOK VANE
CHANNEL CHANNEL
w
J
z
m
A
FLOW
LEAVE I'-2'
20' TO 30' GAPS
j
NO GAPS
BETWEEN
BOULDERS
SCOUR
POOL `
/ SCOUR POOL (EXCAVATED)
?- PER DIRECTION OF ENGINEER
tf2 TO 213 BANKFULL
FLOW _,_
STREAMBED ELEVATION
BACKFILL (ON-SITE ALLUVIUM OR NO. 57 STONE)
CLASS A STONE
CLASS 1 STONE
DI API WIMAI
NOTES FOR ALL VANE STRUCTURES:
1. BOULDERS MUST BE AT LEAST 4'x 3'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.
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
Q 6000 Regency Parkway Suite 200
SUC K1_ Cary, North Carolina 27511
Phone: [phone]
c I . : z. i N c; Fax: [phone]
CLASS A STONE
BACKFILL (ON-SITE ALLUVIUM OR NO. 57 STONE)
FILTER FABRIC--\
PROFILE VIEW
BED

10' MINIMUM
HEADER ROCK
- FOOTER ROCK
SCOUR POOL
(EXCAVATED)
V F+- HEADER ROCK
1-2'---1 \-- CLASS 1 STONE
SECTION A - A
"J" HOOK VANE
ROCK
113 113 113
BOTTOM BOTTOM BOTTOM
WIDTH OF WIDTH OF WIDTH OF
CHANNEL I CHANNEL I CHANNEL
FLOW
VARIE
w w

4?
` J
4_. ?.
gg. ?
y
z
2

m

' a
m
BACKWATER
POOL

I
SCOUR
POOL
NO GAPS I ?c I
BETWEEN ?.
BOULDERS j
FLOOOPLAIN SILL
BANKFULL
HEADER ROCK
FLOW----O.. 4%TOB% SLOPE
STREAM BED
ELEVATION.
BACKFILL (ON-SITE ALLUVIUM) FOOTER ROCK
#57 STONE FILTER FABRIC
CLASS A STONE
CLASS 1 STONE PROFILE VIEW
# 57 STONE
BACKFILL (ON-SITE ALLUVIUM) 1
STREAMBED
CLASS A STONE
FILTER FABRIC ((??
?1 1 1-2.
10' MINIM
SECTION A - A
CLASS 1 STONE
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 STREAM BANK
4. START AT BANKFULL 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.
POOLS(EXCAVATED)PER
DIRECTION OF ENGINEER
DEPTH = AVERAGE BANKFULL DEPTH x 1.5 TO 2.0
PLAN VIEW
Q 8000 Regency Parkway Suite 200
Cary, North Carotins 27511
Phone: [phone]
I c; Fax: [phone]
DOUBLE DROP ROCK CROSS VANE
LIVE STAKING
TOP OF STREAMBANK
F7775
TOE OF SLOPE
BOTTOM OF CHANNE
TOP TOP OF STREAMBANK
STREAMBANK
0' . 0 ' ' . O * PLANT STAKES FROM TOP OF BANK
TO TOE OF BANK IN A DIAMOND SHAPED
0. ?. p STAGGERED PATTERN
TOE OF SLOPE
CROSS SECTION VIEW
6'-V SPACING
Esssm r scncitin
PLAN VIEW
SQUARE CUT TOP
BUDS FACING UPWARD
LIVE CUTTING
MIN. 112"D IA
2'- 3' LENGTH
ANGLE CUT
30-45DEGREES
LIVE STAKE DETAIL
NOTES:
PLAN VIEW
7 8000 Regency Parkway Suite 200
( I??/ Cary, North Carolina 27511
Phone: [phone]
€ ?•. z'% 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 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
ROOT WADS WITHOUT TRANSPLANTS
CROSS SECTION VIEW
NTS
COIR FIBER MATTING
FLOOD PLAIN
BERM (0.5 MAX. HT.) BERM(S)
NOT TO EXTEND BEYOND
LIMITS OF ROOT WADS.
TOP OF BANK
ROOT WADS
PLAN VIEW
NTS
C
O.
OPTIONAL
COVER LOG
ANCHOR COVER LOG
UNDER FOOTER LOGS
OR WITH A BOULDER.
10-15FEETLONG? \
>10' DIAMETER
FOOTER LOG > 12' DIAMETER INSTALLED BELOW STREAMBED
(OPTIONAL PER DIRECTION OF ENGINEER)
ROOT WAD
TRANSPLANTS OR BOULDERS
ROOT WADS WITH TRANSPLANTS
CROSS SECTION VIEW
NTS
FOOTER LOG FOR
TRENCHING METHOD
ONLY
NOTES
TRENCHING METHOD:
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
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
FLOW CONDITIONS.
NOTES
6 FEET LONG TRUNK
>12' DIAMETER
FOOTER LOG > 12' DIAMETER INSTALLED BELOW STREAMBED
(OPTIONAL PER DIRECTION OF ENGINEER)
p'p Q 8000 Regency Parkway Suite 200
1'iy1?? Cary, North Carolina 27511
Phone: [phone]
?.1. C'; Fax: [phone]
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 90-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 3'X 2'.
ROOT WADS
TYPICAL PLAN VIEW AND PROFILE
PLAN VIEW
B
i
POOL MAX DEPTH
THALWEG

HEAD OF POOL POOL \ HEAD OF RIFFLE
O

NOTES:
Q?
?
Q B 1. THE POINTS SHOWN, a g. HEAD OF RIFFLE, HEAD OF POOL AND MAX DEPTH OF POOL
ARE THE CONTROL POINTS USED TO CUT THE PROFILE; HOWEVER, THE CONTRACTOR
SHOULD CREATE SMOOTH TRANSITIONS BETWEEN CONTROL POINTS AS SHOWN ABOVE.
2. USE THE FACET SLOPES IN THE TABLE AS A GUIDE TO ENSURE THAT THE FEATURES

O? A ARE APPROPRIATELY GRADED.
I
ON SHOULD NOT EXCEED THE HEAD OF POOL ELEVATION
T
E HE
D OF
E E
E

P
BANKFULL .
H
A
R
FFL
L
VATI
3.
4. THE CHANGE IN WIDTH BETWEEN THE RIFFLES AND POOLS SHOULD OCCUR GRADUALLY
LIMITS OVER THE ENTIRE LENGTH OF THE BEND.
CENTERLINE
BANKFULL ? PROFILE VIEW
STAGE
FLOW
> T
HEAD OF RIFFLE (Pnnai ?I
HEAD OF POOL
MAX DEPTH OF POOL
Q 8000 Regency Parkway Suite 200
EBUCK Cary, North Carolina 27511
Phone: [phone]
Fax: [phone]
D?ih ax
RIFFLE)
/rFFi? r-THALWEG
HEAD OF RIFFLE
FACET SLOPE RANGE
RIFFLE .0019-.0069
RUN .018-.030
POOL .0007-.002
GLIDE .013-.028
TYPICAL PLAN VIEW & PROFILE
TEMPORARY SILT FENCE
NOTES;
FILTER FABRIC -
1. USE FILTER FABRIC A MINIMUM OF 36" IN WIDTH AND
FASTEN ADEQUATELY TO THE WIRE AS DIRECTED COMPACTED FILL
BY THE ENGINEER.
2. PROVIDE 5' STEEL POST OF THE SELF-FASTENER
ANGLE STEEL TYPE.
STEEL POST - 2'-0" DEPTH
EXTENSION OF FABRIC
INTO TRENCH
SUCK 4 8000 Regency Parkway Suite 200 I SILT
'O',??/ Cary, North Carolina 27511 FENCE
Phone: [phone]
-= I G Fax: [phone]
6' MAXIMUM
TYPICAL STRUCTURE PLACEMENT
LOG VANE
MAT BANKS MATH COIR FIBER
(SEE SPECS)
MAT BANKS 1ITH COIR FIBER MATTING
(SEE SPECS)
1- LOG WEIR
o /
MAT BANKS WITH COIR FIBER MATTING
(SEE SPECS)
TOP OF BANK
TPUCTUPEN
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.
-tl- 271200
13 ?}?A1 Q 8000Cary Regency P.rkw.y
IL', NorM G 515511
Pho- 919483-5488
Ft 910.483-5490

ROOT WADS
(NUMBER AND
SIZE TO BE
DETERMINED
IN THE FIELD)
p% MAT BANKS WITH COIR FIBER MATTING
(SEE SPECS)
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MAT BANKS WITH COIR FIBER MATTING
(SEE SPECS)
NOTES.
1. COIR FIBER MATING 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
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TREE OR SHRUB PLANTING DETAIL
?m pJ Q 8000 Re North Parkway Suite 200
I?V`?Fy?7[r?,SE?A7, Cary, North Carolina 27511
Phone: [phone]
Fax: 919<515490
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GROUNDCOVER PLANTING DETAIL
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SHRUB BED PLANTING DETAIL
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GUYING & STAKING
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GUY SPACING DETAIL
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RANDOM PLANT SPACING DETAIL-PLAN VIEW
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TREE & SHRUB PLANTING DETAILS
GUY TYING DETAIL
TREE OR SHRUB PLANTING DETAIL
STAKING DETAIL
FOR TREES 6 TO VY TALL
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TREE GUYING DETAIL
FOR TREES 19 OR TALLER
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