20150016 Ver 2_ePCN Application_20220518

Pre -Construction Notification (PCN) Form
For Nationwide Permits and Regional General Permits
(along with corresponding Water Quality Certifications)
April 13, 2022 Ver 4.3
Initial Review
Has this project met the requirements for acceptance in to the review process?*
OO Yes
O No
Is this project a public transportation project?*
OYes 0No
Change only if needed.
Pre -Filing Meeting Date Request was submitted on:
11/16/2021
BIMS # Assigned* Version#*
20150016 2
Is a payment required for this project?*
0 No payment required
O Fee received
O Fee needed - send electronic notification
Reviewing Office*
Asheville Regional Office - [phone]
Information for Initial Review
What amout is owed?*
O $240.00
® $570.00
Select Project Reviewer*
Amy Annino:eads\amannino
la. Name of project:
Upper Davidson River re-route and Cove Creek bridge replacement project
la. Who is the Primary Contact?*
Brady Dodd
lb. Primary Contact Email:*
lc. Primary Contact Phone:*
[e-mail] [phone]
Date Submitted
5/18/2022
Nearest Body of Water
Davidson River
Basin
French Broad
Water Classification
WS-V,B;Tr,HQW
Site Coordinates
Latitude:
35.288901
A. Processing Information
Longitude:
-82.838084
County (or Counties) where the project is located:
Transylvania
Is this a NCDMS Project
0Yes ONo
Is this project a public transportation project?*
0Yes ONo

la. Type(s) of approval sought from the Corps:
21 Section 404 Permit (wetlands, streams and waters, Clean Water Act)
❑ Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act)
Has this PCN previously been submitted?*
0 Yes
O No
1b. What type(s) of permit(s) do you wish to seek authorization?
O Nationwide Permit (NWP)
0 Regional General Permit (RGP)
0 Standard (IP)
lc. Has the NWP or GP number been verified by the Corps?
0Yes ®No
Nationwide Permit (NWP) Number:
Nationwide Permit (NWP) Number:
NWP Numbers (for multiple NWPS):
Id. Type(s) of approval sought from the DWR:
O 401 Water Quality Certification - Regular
0 Non-404 Jurisdictional General Permit
O Individual 401 Water Quality Certification
27 - Restoration
03 - Maintenance
le. Is this notification solely for the record because written approval is not required?
For the record only for DWR 401 Certification:
For the record only for Corps Permit:
tf. Is this an after -the -fact permit application?*
O Yes O No
O 401 Water Quality Certification - Express
O Riparian Buffer Authorization
lg. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
O Yes O No
1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
O Yes O No
lh. Is the project located in any of NC's twenty coastal counties?
O Yes O No
1j. Is the project located in a designated trout watershed?
• Yes 0 No
B. Applicant Information
OYes 0No
OYes 0No
td. Who is applying for the permit?
O Owner !� Applicant (other than owner)
le. Is there an Agent/Consultant for this project?*
0Yes ®No
2. Owner Information
2a. Name(s) on recorded deed:
USDA Forest Service
2b. Deed book and page no.:
2c. Contact Person:
James Melonas (NFsNC Forest Supervisor)
2d. Address
Street Address
National Forests in North Carolina
Address Line 2
160 Zillicoa St.
City
Asheville
Postal / Zip Code
28801
State / Province / Region
NC
Country
USA

2e. Telephone Number:
[phone]
2f. Fax Number:
2g. Email Address: *
[e-mail]
3. Applicant Information (if different from owner)
3a. Name:
Brady N. Dodd
3b. Business Name:
3c. Address
Street Address
160 Zillicoa Street
Address Line 2
City
Asheville
Postal / Zip Code
28801
3d. Telephone Number:
[phone]
3f. Email Address:*
[e-mail]
C. Project Information and Prior Project History
State / Province / Region
NC
Country
USA
3e. Fax Number:
1. Project Information
1b. Subdivision name:
(if appropriate)
lc. Nearest municipality / town:
Brevard, NC
2. Project Identification
2a. Property Identification Number: 2b. Property size:
2c. Project Address
Street Address
Address Line 2
City
Postal / Zip Code
3. Surface Waters
3a. Name of the nearest body of water to proposed project: *
Davidson River
3b. Water Resources Classification of nearest receiving water: *
WS-V,B;Tr,HQW
3c. What river basin(s) is your project located in?*
French Broad
3d. Please provide the 12-digit HUC in which the project is located.
060101050202
4. Project Description and History
State / Province / Region
Country

4a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application: *
This project is in the upper Davidson River watershed. One activity is located upstream from the Daniel Ridge Trailhead and near the old fish hatchery where a large mass movement of
land has been occurring for many years down to the Davidson River. Stabilization efforts have been occurring at the site for many years, while the most recent attempt was made in 2015
(DWR# 15-0016) to restore access along the Forest Service Road 137/Daniel Ridge Trail that crosses on the lower % of the active slope. The Davidson River is classified by the state of
North Carolina as Class B - Trout, Water -Supply watershed, and High -Quality Waters. Erosion and sedimentation is the largest risk to water quality in this watershed of the French Broad
River Basin.
The other activity is located at the intersection of National Forest System Road 475 (Davidson River Road) and Cove Creek. The road bridge that crosses Cove Creek was damaged
during the Tropical Storm Fred flood event as well.
4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past?*
O Yes O No 0 Unknown
If yes, please give the DWR Certification number or the Corps Action ID (exp. SAW-0000.00000).
DWR# 15-0016 for Davidson River landslide stabilization
4f. List the total estimated acreage of all existing wetlands on the property:
4g. List the total estimated linear feet of all existing streams on the property:
4h. Explain the purpose of the proposed project:*
Davidson River Relocation/Re-route Project:
Soil movement is initiated by the many seeps and springs in the landmass that tend to saturate the soil and lubricate the soil -bedrock interface. Also, the toe of the slump is located in the
Davidson River at the outside of a meander bend where streamflow energy and erosion potential are high during flood events. High flow of the river exacerbates the already high erosion
potential of the slope. The recent heavy rainfall and subsequent flood event, generated from Tropical Storm Fred on August 17th, 2021, resulted in reactivating the slope into a mass
movement that pushed several hundred cubic yards of sediment into the Davidson River. The Bobby Setzer Fish Hatchery draws water from the Davidson River downstream of this
location. Erosion and sedimentation is detrimental to the operation of the fish hatchery as well as the aquatic habitat in general.
Cove Creek Bridge Replacement:
This crossing is a concrete open -bottom box/bridge that is undersized and damaged, leaving it structurally unsound for consistent use.
4i. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:*
Davidson River Relocation/Re-route Project:
Re-route approximately 500 feet of the Davidson River away from the unstable slope of the landslide to greatly reduce the erosion and subsequent sedimentation entering the river.
1) Use the old hatchery access road for equipment access to the site.
2) Remove the dam associated with the old fish hatchery and remove material from site.
3) Construct a new section of the Davidson River approximately 80 feet to the south of the current channel mimicking up and down stream channel dimension, pattern & profile. Use
excavated boulders & large wood to form channel features.
4) The material removed in the creation of the new channel will be used to fill the current channel & create a floodplain against the toe of the unstable slope.
5) Stabilize channel banks & constructed floodplain with temporary erosion control measures, transplants from the area & new plantings of riparian vegetation.
Cove Creek Bridge Replacement:
Replace the Cove Creek bridge at the intersection of Cove Creek and the Davidson River Road to address damage sustained and improve aquatic organism passage.
1) Re-route approximately 200 feet of National Forest System Road 475 around the existing damaged concrete bridge crossing of Cove Creek to provide temporary access across the
channel while the damaged bridge is removed and replaced with a larger structure.
2) The temporary bridge will span the high flow/bankfull channel, with minimal channel disturbance.
3) The concrete bridge will be replaced with a crossing with a natural stream bottom; designed with a bankfull channel to pass the 100-year flow, large wood, and aquatic organisms.
Excavation of bed and banks will occur during crossing replacement.
5. Jurisdictional Determinations
5a. Have the wetlands or streams been delineated on the property or proposed impact areas? *
OYes ONo
Comments:
5b. If the Corps made a jurisdictional determination, what type of determination was made? *
0 Preliminary O Approved 0 Not Verified O Unknown 0 N/A
Corps AID Number:
5c. If 5a is yes, who delineated the jurisdictional areas?
Name (if known):
Agency/Consultant Company:
Other:
6. Future Project Plans
6a. Is this a phased project?*
O Yes O No
0 Unknown
Are any other NWP(s), regional general permit(s), or individual permits(s) used, or intended to be used, to authorize any part of the proposed project or related activity?
D. Proposed Impacts Inventory

1. Impacts Summary
la. Where are the impacts associated with your project? (check all that apply):
n Wetlands O Streams -tributaries
O Open Waters O Pond Construction
3. Stream Impacts
O Buffers
3a. Reason for impact (?)
3b.Impact type*
3c. Type of impact*
3d. S. name*
3e. Stream Type*
(?)
3f. Type of
Jurisdiction*
3g. S. width
3h. Impact
length*
si
Channel relocation
Permanent
Excavation
Davidson River
Perennial
Both
33
Average (feet)
500
(linear feet)
S2
Channel relocation
Permanent
Fill
Davidson River
Perennial
Both
33
Average (feet)
500
(linear feet)
S3
Bridge replacement
Permanent
Excavation
Cove Creek
Perennial
Both
15
Average (feet)
50
(linear feet)
3i. Total jurisdictional ditch impact in square feet:
0
3i. Total permanent stream impacts:
1,050
3i. Total stream and ditch impacts:
1050
3j. Comments:
E. Impact Justification and Mitigation
3i. Total temporary stream impacts:
0
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project:
The relocation of the Davidson River would occur in such a way to minimize elevating turbidity levels by excavating the new channel while leaving flow in
the existing channel, stock piling excavated material until completion of the new channel. Flow would then be turned into the new channel and the old
channel would be filled without the main flow of the river.
At Cove Creek bridge replacement sand bags and other means would be used to form a temporary bank between the streamflow and the stream bank
where excavation is occurring to minimize turbidity.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques:
The relocation of the Davidson River would occur in such a way to minimize elevating turbidity levels by excavating the new channel while leaving flow in
the existing channel, stock piling excavated material until completion of the new channel. Flow would then be turned into the new channel and the old
channel would be filled without the main flow of the river.
At Cove Creek bridge replacement sand bags and other means would be used to form a temporary bank between the streamflow and the stream bank
where excavation is occurring to minimize turbidity.
During construction sediment fence will be used as needed to capture sediment, and temporary seeding and mulch would be applied on final slides.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State?
O Yes J No
2b. If this project DOES NOT require Compensatory Mitigation, explain why:
This project work is designed to improve site conditions by reducing the risk of further erosion and sedimentation to the Davidson River.
F. Stormwater Management and Diffuse Flow Plan (required by DWR) O
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules?
Yes .•. No
If no, explain why:
2. Stormwater Management Plan
2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?*
OYes No

2b. Does this project meet the requirements for low density projects as defined in 15A NCAC 02H .1003(2)?
• Yes No
Comments:
G. Supplementary Information
1. Environmental Documentation
la. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land?*
0• Yes No
1b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State (North Carolina)
Environmental Policy Act (NEPA/SEPA)?*
• Yes No
lc. If you answered "yes" to the above, has the document review been finalized by the State Clearing House?*
O Yes No
2. Violations (DWR Requirement)
2a. Is the site in violation of DWR Water Quality Certification Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), or DWR Surface Water or Wetland Standards or
Riparian Buffer Rules (15A NCAC 2B .0200)?*
Yes • No
3. Cumulative Impacts (DWR Requirement)
3a. Will this project result in additional development, which could impact nearby downstream water quality?*
Yes • No
3b. If you answered "no," provide a short narrative description.
No development
4. Sewage Disposal (DWR Requirement)
4a. Is sewage disposal required by DWR for this project?*
Yes • No N/A
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or habitat?*
• Yes No
5b. Have you checked with the USFWS concerning Endangered Species Act impacts?*
• Yes No
5c. If yes, indicate the USFWS Field Office you have contacted.
Asheville
5d. Is another Federal agency involved?*
Yes
5e. Is this a DOT project located within Division's 1-8?
Yes • No
• No Unknown
5f. Will you cut any trees in order to conduct the work in waters of the U.S
OYes 0No
5g. Does this project involve bridge maintenance or removal?
® Yes ` No
5g(1). If yes, have you inspected the bridge for signs of bat use such as staining, guano, bats, etc.?
OYes 0No
If you answered "Yes" to 5g(1), did you discover any signs of bat use?
0 Yes O No 0 Unknown
5h. Does this project involve the construction/installation of a wind turbine(s)?*
0 Yes L No
5i. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted by machines, such as jackhammers, mechanized pile drivers, etc.?
0 Yes 0 No
5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat?
Please see NEPA documentation.

6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as an Essential Fish Habitat?*
O Yes O No
6b. What data sources did you use to determine whether your site would impact an Essential Fish Habitat?*
NOAA Fisheries website: https://www.noaa.gov/
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation status?*
O Yes O No
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?*
Please see NEPA documentation.
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain?*
Yes O No
8c. What source(s) did you use to make the floodplain determination?*
NC Floodplain Mapping Information System http://floodmaps.nc.gov/FMIS/
Miscellaneous U
Please use the space below to attach all required documentation or any additional information you feel is helpful for application review. Documents should be combined into one file when
possible, with a Cover Letter, Table of Contents, and a Cover Sheet for each Section preferred.
Click the upload button or drag and drop files here to attach document
Dodd Delegation of Authority Section 404.pdf
Davidson River Re-route and Cove Creek Bridge Replacement DM 5.5.2022.pdf
DavidsonR_CoveCreek2022_404 Coverletter.pdf
DavidsonRChannelRelo_CoveCrkBrdg_Project Description.pdf
Davidson RiverRelo_CoveCrkBrdg Replace ment_Specifications. pdf
File must be PDF or KMZ
Comments
Signature
105.32KB
2.65MB
84.77KB
1.18MB
612.16KB
i By checking the box and signing below, I certify that:
• The project proponent hereby certifies that all information contained herein is true, accurate, and complete to the best of my knowledge and belief'; and
• The project proponent hereby requests that the certifying authority review and take action on this CWA 401 certification request within the applicable reasonable period of time.
• I have given true, accurate, and complete information on this form;
I agree that submission of this PCN form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND
I intend to electronically sign and submit the PCN form.
Full Name:
Brady N. Dodd
Signature
��dcZy'% L • ��r/
Date
5/18/2022

Forest Service National Forests in North Carolina
160A Zillicoa Street
Asheville, NC 28801
828-257-4200
Fax: [phone]
Route To:
Subject: Delegation of Authority - 404 Permits
To: Brady Dodd
You are hereby delegated the authority to act as my agent for all phases of the application
process for permits required by Section 404 of the Clean Water Act, for watershed restoration
and improvement projects such as aquatic habitat restoration and enhancement, habitat
restoration, channel stabilization, and channel relocation on the National Forests in North
Carolina. You are authorized to make formal application for all permits to the U.S. Army Corp
of Engineers and the North Carolina Division of Water Quality, provide all necessary
information, and sign all correspondence.
Include this letter as part of all application for Section 404 permits to the U.S. Army Corps of
Engineers and Section 401 Water Quality Certification to the North Carolina Division of Water
Quality.
LLVMES E MELONAS
Forest Supervisor
cc: Lee Thornhill
USDA
America's Working Forests — Caring Every Day in Every Way
Printed on Recycled Paper �.

USDA
DECISION MEMO
UPPER DAVIDSON RIVER RE-ROUTE AND COVE CREEK BRIDGE
REPLACEMENT PROJECT
U.S. FOREST SERVICE
PISGAH RANGER DISTRICT
PISGAH NATIONAL FOREST
TRANSYLVANIA COUNTY, NORTH CAROLINA
BACKGROUND
This project is in the upper Davidson River watershed. One activity is located upstream from the
Daniel Ridge Trailhead and near the old fish hatchery (map attached) where a large mass
movement of land has been occurring for many years down to the Davidson River. Stabilization
efforts have been occurring at the site for many years, while the most recent attempt was made in
2015 to restore access along the Forest Service Road 137/Daniel Ridge Trail that crosses on the
lower'/4 of the active slope. Soil movement is initiated by the many seeps and springs in the
landmass that tend to saturate the soil and lubricate the soil -bedrock interface. Also, the toe of
the slump is located in the Davidson River at the outside of a meander bend where streamflow
energy and erosion potential are high during flood events. High flow of the river exacerbates the
already high erosion potential of the slope. The recent heavy rainfall and subsequent flood
event, generated from Tropical Storm Fred on August 17th, 2021, resulted in reactivating the
slope into a mass movement that pushed several hundred cubic yards of sediment into the
Davidson River.
In addition, the Bobby Setzer Fish Hatchery draws water from the Davidson River downstream
of this location. Erosion and sedimentation is detrimental to the operation of the fish hatchery as
well as the aquatic habitat in general. The Davidson River is classified by the state of North
Carolina as Class B - Trout, Water -Supply watershed, and High -Quality Waters. Erosion and
sedimentation is the largest risk to water quality in this watershed of the French Broad River
Basin.
The other activity is located at the intersection of National Forest System Road 475 (Davidson
River Road) and Cove Creek. The road bridge that crosses Cove Creek was damaged during the
Tropical Storm Fred flood event as well.
— Decision Memo —
Page 1 of 4

USDA
PROJECT DESCRIPTION
The specific activities are below and located on the attached map.
Upper Davidson River Re -Route
Re-route approximately 500 feet of the Davidson River away from the unstable slope described
above to greatly reduce the erosion and subsequent sedimentation entering the river.
1) Construct a new section of the Davidson River approximately 100 feet to the south of the
current channel.
2) The material removed in the creation of the new channel will be used to fill the current
channel and create a floodplain against the toe of the unstable slope.
3) Remove the dam associated with the old fish hatchery due to it's proximity associated
with this project.
Cove Creek Bridge Replacement
Replace the Cove Creek bridge at the instersection of Cove Creek and the Davidson River Road
to address damage sustained and improve aquatic organism passage.
1) A temporary bridge will be placed immediately downstream of the bridge during
construction to allow vehicular traffic to pass.
DECISION
I have decided to implement the specific actions described above in the Project Description.
The following design criteria will be observed during implementation.
• The Davidson River re-route (DRR) will occur during drier weather.
• River current will be diverted from active work in the DRR to reduce turbidity. Work
will comply with NC state turbidity standards.
• Erosion control measures will be implemented immediately following ground
disturbance.
• A hydrologist will oversee operations on -site.
• No work will be performed at night to reduce impacts to bats.
• There are currently no suitable bat roost trees present so there are no seasonal restrictions
on felling trees.
This action is categorically excluded from documentation in an environmental impact statement
(EIS) or an environmental assessment (EA). The applicable categories are identified in agency
procedures as 36 CFR 220.6(e)(18) — Restoring wetlands, streams, riparian areas or other water
bodies by removing, replacing, or modifying water control structures such as, but not limited to,
dams, levees, dikes, ditches, culverts, pipes, drainage tiles, valves, fates, and fencing, to allow
waters to flow into natural channels and floodplains and restore natural flow regimes to the
extent practicable where valid existing rights or special use authorizations are not unilaterally
altered or cancelled, and 36 CFR 220.6(e)(19) — Removing and/or relocating debris and
— Decision Memo —
Page 2 of 4

USDA
sediment following disturbance events (such as floods, hurricanes, tornados, mechanical/
engineering failures, etc.) to restore uplands, wetlands, or riparian systems to pre -disturbance
conditions, to the extent practicable, such that site conditions will not impede or negatively alter
natural processes, and 36 CFR 220.6(d)(4) - Repair and maintenance of roads, trails, and
landline boundaries.
I find that there are no extraordinary circumstances that would warrant further analysis and
documentation in an EA or EIS. I took into account resource conditions identified in agency
procedures that should be considered in determining whether extraordinary circumstances might
exist:
• Federally listed threatened or endangered species or designated critical habitat, species
proposed for Federal listing or proposed critical habitat, or Forest Service sensitive
species — The project may affect, but is not likely to adversely affect the Northern Long-
eared Bat, Gray Bat, Tricolored Bat, Little Brown Bat, Appalachian Elktoe, Longsolid
and Tennessee clubshell. There is suitable habitat for Appalachian elktoe, longsolid and
Tennessee clubshell however aquatic surveys did not show any presence. Furthermore,
this project will improve the downstream aquatic habitat in the future. There is suitable
bat habitat for the species listed above however, the project is not near any known
maternity roost trees or hibernacula and the design criteria will further minimize potential
impacts. The project will not affect any other federally proposed, threatened or
endangered, Region 8 Sensitive or Forest Concern terrestrial wildlife, aquatic, or
botanical species as designed.
• Flood plains, wetlands, or municipal watersheds — This project is specifically designed to
improve the riparian habitat around the Davidson River and Cove Creek.
• Congressionally designated areas such as wilderness, wilderness study areas, or national
recreation areas — None are present.
• Inventoried Roadless Areas (IRA) or potential wilderness areas — None are present.
• Research Natural Areas — None are present.
• American Indians and Alaska Native religious or cultural sites — Cultural Resource
surveys within the project area documented three archaeological sites. None of the sites
were determined eligible to be listed on the National Register of Historic Places (NRHP).
Consulting Tribes were notified of these survey results.
• Archaeological sites, or historic properties or areas — (see above also) Project specific
Cultural Resource Survey findings and recommendations were submitted to the State
Historic Preservation Office (SHPO) for review and comment. As planned, the project
will have No Effect on NRHP Eligible Historic Properties as documented by the NC
SHPO letter from 4/21/2022.
— Decision Memo —
Page 3 of 4

USDA
PUBLIC INVOLVEMENT
This proposed action was sent to organizations and individuals known to have an interest in this
project on January 13, 2022. In addition, several follow-up conversations took place. No
negative comments were received in response.
FINDINGS REQUIRED BY OTHER LAWS AND REGULATIONS
This decision is consistent with the Nantahala and Pisgah National Forest Land Management
Plan. In addition, all necessary permits for in -stream work will be secured before work begins.
ADMINISTRATIVE REVIEW (APPEAL) OPPORTUNITIES
This decision is not subject to administrative review and appeal.
CONTACT
For additional information concerning this decision, contact: Dave Casey, District Ranger @
[e-mail].
DAVICAS EY Digitally signed Date: 20205 05b13: 0:00 04'00'
May 5, 2022
David M. Casey
District Ranger
Date
The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the
basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status,
parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or part
of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all
programs.) Persons with disabilities who require alternative means for communication of program information
(Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at [phone] (voice and
TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence
Avenue, S.W., Washington, D.C. 20250-9410, or call [phone] (voice) or [phone] (TDD). USDA is
an equal opportunity provider and employer.
— Decision Memo —
Page 4 of 4

Davidson River Landslide & Cove
Creek Bridge Project 2022
0 0.05 0.1 0.2
Miles
Proposed Action
• Landslide
• Dam Removal
O Cove Creek Bridge Replacement
Roads
Project Access
11 Davidson River Relocation
dmc 1.11.22
1:6,000
Davidson
3089 n
Esri, HERE, Garmin, (c) OpenStreetMap contributors, and the GIS user community, Sources: Esri, HERE, Garmin,\l,�termap i9creait P Corp., GEBCO, USGS, FAO,
NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), (c) OpenStreetMap coLtrirlutors, and the GIS User
Community, Copyright:(c) 2014 Esri, Sources: Esri, Garmin, USGS, NPS, ��

United States Forest National Forests in 160A Zillicoa Street
Department of Service North Carolina P.O. Box 2750
Agriculture Asheville, NC 28802
File Code: 2530-3
Date: May 18, 2022
Mr. David Brown
Asheville Regulatory Field Office
U.S. Army Corps of Engineers
151 Patton Ave., Room 208
Asheville, NC 28801-5006
Dear Mr. Brown,
This letter is to request Section 404 permitting from the U.S. Army Corps of Engineers for the U.S. Forest
Service project: Upper Davidson River Re -Route and Cove Creek Bridge Replacement Project. Located
on the Pisgah National Forest, Pisgah Ranger District in Transylvania County, North Carolina, this
project is situated in the French Broad River Basin.
The Davidson River Channel Relocation project is in the upper Davidson River watershed, located
upstream from the Daniel Ridge Trailhead and near the old fish hatchery where a large mass movement of
land has been occurring for many years down to the Davidson River. The toe of the landslide is in the
Davidson River at the outside of a meander bend where streamflow energy and erosion potential are high
during flood events. High flow of the river exacerbates the already high erosion potential of the slope. In
addition, the Bobby Setzer Fish Hatchery draws water from the Davidson River downstream of this
location. Erosion and sedimentation are detrimental to the operation of the fish hatchery as well as the
aquatic habitat in general. This project proposes to re-route approximately 500 feet of the Davidson River
away from the unstable slope of the landslide to greatly reduce the erosion and subsequent sedimentation
entering the river.
The Cove Creek Bridge Replacement project is at the Cove Creek stream crossing of the NFSR475 road.
Cove Creek is a major tributary to the Davidson River in the upper Davidson River watershed. The bridge
is currently undersized and structurally damaged from high flows associated with Tropical Storm Fred
and is planned for replacement.
In addition to the online Pre -Construction Notice the following are included:
• Letter of Delegation of Authority
• Project description
• Copy of the NEPA documentation for the project
If you require any additional information, please contact me at 828-620-3176.
Sincerely,
Brady N. Dodd
National Forests in North Carolina
Forest Hydrologist
Caring for the Land and Serving People
Printed on Recycled Paper4.1.r

UPPER DAVIDSON RIVER RE-ROUTE
AND COVE CREEK BRIDGE
REPLACEMENT PROJECT
Pisgah Ranger District, Pisgah National Forest
Submitted by: Brady N. Dodd (Forest Hydrologist), May 18, 2022

FLooDPLAI N
r\r-,
Jfi
1
FtooD P!-AN
Fa REs7
F103181.141N
f
1
LIDSUDE
SLoPwG
FORE
PROJECT DESCRIPTION
BACKGROUND
Davidson River Channel Relocation at Landslide
This project is in the upper Davidson River watershed, located
upstream from the Daniel Ridge Trailhead and near the old fish
hatchery (map attached) where a large mass movement of land has
been occurring for many years down to the Davidson River. Stabilization
efforts have been occurring at the site for many years, while the most
recent attempt was made in 2015 to restore access along the Forest
Service Road 137/Daniel Ridge Trail that crosses on the lower 1/4 of the
active slope.
Cove Creek Bridge Replacement - Crossing of NFSR475
The NFSR475 crossingof Cove Creek is currently undersized and
structurally damagedfromhigh flows associated with Tropical Storm
Fred and is planned for replacement.
RESOURCE CONCERNS
Davidson River Channel Relocation at Landslide
Soil movement is initiated by the many seeps and springs in the
landmass that tend to saturate the soil and lubricate the soil -bedrock
interface. Also, the toe of the slump is located in the Davidson River at
the outside of a meander bend where streamflow energy and erosion
potential are high during flood events. High flow of the river
exacerbates the already high erosion potential of the slope. The recent
heavy rainfall and subsequent flood event, generated from Tropical
Storm Fred on August 17th, 2021, resulted in reactivating the slope into
a mass movement that pushed several hundred cubic yards of
sediment into the Davidson River.
In addition, the Bobby Setzer Fish Hatchery draws water from the
Davidson River downstream of this location. Erosion and
sedimentation are detrimental to the operation of the fish hatchery as
well as the aquatic habitat in general. The Davidson River is classified
by the state of North Carolina as Class B - Trout, Water -Supply
watershed, and High -Quality Waters. Erosion and sedimentation is the
largest risk to water quality in this watershed of the French Broad River
Basin.

\ f 1
2923 —— , 5046 o r m
l! ; l r 1 rt @ /
1 f-- I J 4--
J e
� t„, DAVIDSON RIVER RELOCATION I ``:isr• _:
\,,\_,__ ,„.
, , ^ _ .t : „ -_ \ /'sir
-//--., ,, L__N\-\\
,• i f _n: COV4=CREEK
___)}__,_-\1.-,___-_-. „.1...
: ' , - -J 8 ! l--_ GROUP - N r-
• -- ___ •• -- C9) •C.16M • (, ), /
-'- -- -lq)\;.H•' -D: - .------ 1.
( , .--,), ,., ,\\... ,, , 1)0, ),\ \ \ I 1
T COVE CREEK CROSSING I )7,:\--/- ---\
DANIEL RIDGE . 4\Hzee.: 635 i
- � � 475 - ; ^ ,
c---• . ..... ii- •- _//- - ..., `'. ...- v:„„Igiiioill.P!7-.'1111101 !%
f'---------- ---------.„ / cp 0411 ) ill .--,--------• (f3)/
„..,./..,...,..,,,-,,,_,..---,____________5,__ -,\_______ ///. , .. .....":— 4......„..-.7.1-_-_,
__
•
, 7,..___.___/....
.' 1 L �� ranch , 2558
� 0V}- 4 • ~',try \\

. ,
FLooDPLAIN \\I SLoPINCI .< 1 i
. . FOREST Davidson River Channel
'e ,/ ,
dq Relocation at Landslide
, ,,,,
PROPOSED ACTION
lk % .. .....,,, ,
�'k. ��► � �'; = Re-route approximately500 feet of the
Davidson River away rom the unstable slope
• Aft, � .� of the landslide to greatly reduce the erosion
11 and subsequent sedimentation entering the
1 \ 'Ctck INS-- - -e epti river.
1) Use the old hatchery access road for
t • AREA OF FILL -' equipment access to the site.
sL N6 F oo P„N 2) Remove the dam associated with the old
(FLOODPLAIN fish hatchery and remove material from site.
��� �REA � ONSTRUCTION ��` ��� - -
t EXCAVATi: , _' ' - 1 3) Construct a new section of the Davidson
(CHANNE - „`i River approximately 80 feet to the south of
CONSTRUCTIc f s -�- sI_oPwG the current channel mimicking up and down
,�- stream channel dimension, pattern &
profile. Use excavated bounders & large
ti„: - .0 -� ` r` f wood to form channel features.
.' .,� 4) The material removed in the creation of the
3 , I ' el / ' new channel will be used to fill the current
r . -" .\ �, channel & create a floodplain against the
riti.,AW zNr toe of the unstable slope.
a`°w ,:it 5) Stabilize channel banks & constructed
'f ��� • , �� floodplain with temporary erosion control
�� •4dr measures, transplants from the area & new
��` � plantings of riparian vegetation.
v p g p g
ji;§---, , -
z
FLca I N I

FLooDPLAII�
� SL�iNy
Fog 5T < Davidson River Channel
N.,,L�'� Relocation at Landslide
%\, ,
�,� `� :.�-. ', �, Cj CROSS SECTION (Conceptual Drawing)
,, &
. -
•• ' . a , ,...,.� ,��,, New channel excavated alluvial material will
- - ._ , ;, --''` be deposited in existing channel. Excavated
I \ . ' - °° r� material is likely to be less than fill needed
SLI DE
. u CTION _ - therefore an oxbow floodplain feature will
t - • • AREA OF FILL _ -• be constructed. This feature would act to
.�opi ,6 .
„• ' • • Fr ati� ON (FLOODPLAIN
AREA ONSTRUCTION i ma_Ill catch and store anylandslide material that
1; EXCAVATE may slide in the future.
c� tom. .
i (CHANNE • -. ----- „fi
I CONSTRUCTI c +_ -�` r
;- t 5LoPING
s �`7 L • I J= T
Davidson River Cross Section - Existing and Proposed Meander Pool Habitat
92.00
94-00 A
96.00 9$Q N
98.00 !/OF +20 30
ioo.00 •........ HORIZONTAL
7'.
102.00 +����1�4� �, --------��_+I����---f-- — • • • • •......--4 •
104.00 AREA OF FILL FROM EXCAVATION % AREA OF NEW CHANNEL EXCAVATION �.�.�
ter'
106.00
���
108.00
pogo 0 0 0 0 0 0 0 poop 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 coo coop 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ry m . .1 t0 h Ou Q1 0 .-I ry m a N uf.N 0 cci0 0 O .--I m m 0 Lri0 m m DO m 0 .-I N m V N co r DO Q1 0 .--I N m Ln Lu-in l0 Ln Du Lcrin O kr, ry m �1 c0 r W 61 N r... ry m N. LriN t0 h W O1 o DO ry m CO CO t0 fO DO O1 0 01 01 m 0) 0) l0 r 07 Q1 0
.--I .--I N N N N N N N N N N m m m m m m m m m m a a a a a a a a V V xi ul v1 v5 ul N N ul N N c0 ip cp c0 ,0 c0 c0 ,0 c0 c0 n n n n n h f, h co W D] CO CO CO CO CO DO DO Ol Ql O1 Ol 61 61 01 01 61 Q1 O
rl
—t—Proposed --I—Existing

FL001 pLQ,I� \ LONGITUDINAL PROFILE - NEW CHANNEL CONSTRUCTION
s �Ny (Conceptual Drawing)
, r\,,---„, `` BEST Design Specifics:
. \
d9 •4,\� 1 `,1 • Continue existing riffle into new channel until Sta. 1+00 at
�,,, - a 2-3/ slope,
n
`' ► 't c • transition into run until Sta. 1+60,
.� •
•��Ve ��� ' , �� • transition into pool until Sta. 2+70,
' �� �� , !;, �' • transition into glide until Sta. 3+00,
• �e ,� . S.- • riffle down to existing river channel pool at a 2-3% slope.
:' `.
ti
i
. it• ;,.. •• . . LAIIDSL DE Pool Dimensions:
AREA OF FILL Pool length Lpool (includes run & glide): 64 - 80'
st-°RN lotiPt-AINI t. ' (FLOODPLAIN Pool length ratio (LPoo1Wbk): 1.94-2.43'
-FoREsi , ■ ice` ' ...-- - -
■ .� ‘ - Pool-to-pool spacing, p-p: 132 - 166'
t ; AliONSTRUCTION
- ' f Pool-to-pool spacing ratio, (p-p/Wbkf):4.0-5.0'
1 ■ll ffi. p.. drifit- n
I ,
tWiiiii
` r DavidsonRiver - Longitudinal Profile of New Channel
/ g.
r
�33,�' * Stationing{feet}
�''� 1' 0 20 40 60 80 100 120 140 160 180 E00 220 240 2b0 280 3)0 320 340 3b0 380 400 420 440 4b0 ".�30 500 520 540 5b0 580 600 b20 b40
f ♦ I 90.00 i — ----- ---- —
•
- �* _ TIE INTO
DOWNSTREAM
if
r- 95.00 CHANNEL
e if ei 46,4 if 2.u.
jN ^ TIE INTO
�f.` ¢ems UPSTREAM
.� , w 105. �
�� aPIANNEL CROSS
��� " ♦ ��� SECTION 'DAM
110.00 A-A' - LOCATION
j �.
�LWF t Channel Bottom — — —Water Surface Bankfull

isc tiara a (;
10000
1000
IBC Rural Mountain Regional Curve I Rural Mountain Regional Curve
NEW CHANNEL DESIGN CRITERIA
♦
USING NC RURAL MOUNTAIN REGIONAL CURVE DATA
♦
♦
•
•
♦
♦
10 100
Drainage Area (Sq. mi}
:F113[flLhUFLIi[W;
1000
100
10
NC Rural M ountain Regional Cur
u ' ,real MOE
100
Equations for the Regional Curve Relationships:
♦
♦
•
♦
•
•
•
•
♦
Bankfull Cross -Sectional Area vs. Drainage Area: y = 21.61x0 68
Bankfiill Discharge vs. Drainage Area: y = 100.64x076
Bankfiill Width vs. Drainage Area: y = 19.05x0 37
Bankfiill Mean Depth vs. Drainage Area: y = 1.11x031
* where x = drainage area
•
♦♦
•
•
•
♦
10 0
10
Drainage Area (Sq. mi)
100 1000
Regional Curve Estimates:
Drainage Area = 4.46 miles2
Bankfull riffle cross-section area = 59.7ft2
Bankfull discharge (cfs) = 313.5cfs
Bankfull mean depth @ riffle = 1.8ft
Bankfull width = 33.1ft
1 10 100 1000
Drainage Area (Sq. mi)
1 it
NC Rural Mountain Regional Curve
L LL
10
p
•
1
•
•
Drainage Area (Sq. mi)
•
♦
140 1000

�N Cove Creek Bridge
TEMPORARY
ACCESS ROAD ,r
' Replacement
\ ,'" PROPOSED ACTION
Re-route approximately 200 feet of National
TEMPORARY ,, eP�,1,c - Forest System Road 475 around the existing
BRIDGE damaged concrete bridge crossing of Cove
COVE CREEK BRIDGE Creek to provide temporary access across the
TO BE REPLACED channel while the damaged bridge is
\ i ,
cc removed and replaced with a larger structure.
z
The temporary bridge will span the high
_ _
I flow/bankfull channel, without channel
disturbance.
Cove Creek
The permanent bridge will be replaced with a
crossing with a natural stream bottom;
_ , - -- designed with a bankfull channel to pass the
100-year flow, large wood, and aquatic
' ~ BgRACq pE organisms. Excavation and fill of bed and
banks will occur during crossing
PAVED PARKING replacement.
NFSR 809
AREA TO COVE CREEK GROUP CAMP
TRAILHEAD

Upper Davidson River Re-Route and Cove Creek Bridge Replacement Project-
SPECIFICATIONS
Brady Dodd,NFSNC Hydrologist,May 18,2022
STREAM RESTORATION SPECIFICATIONS
EQUIPMENT AND OPERATOR SPECIFICATIONS
PROJECT MANAGER
The Project Manager shall document experience and proficiency with stream restoration design and
implementation. Stream Resotarion experince should include design and construction of naturally designed
stream channels, cross vanes, J-hook vanes, and Toe-wood/Sod mat and have taken Rosgen High-Level
Classes,or equivenant.
EQUIPMENT AND OPERATOR SPECIFICATIONS
A) Manner of Construction-Excavation will be done in a manner which will minimize sedimentation in
the stream channel. Silt fence will be installed downstream of the construction area as needed to
reduce the risk of sediment entering the stream.
B) Equipment Operator Performance -Equipment operators shall be experienced and competent in the
use of the equipment to which they are assigned. They shall be expected to demonstrate a level of
proficiency with the equipment which enables them to be productive in all aspects of stream
restoration work. Equipment operators shall be experienced in the construction of Rosgen
designed structures; including the cross vane,J-hook vane, and Toe-wood/Sod mat and have
taken Rosgen High-Level Classes.
Operators will be instructed by the construction inspector as to the desired result of construction
activities. Operators will be responsible for determining how best to use equipment to achieve the
desired results. Chain saw operators will be required to cut trees,limbs and root masses as necessary
to facilitate the removal and placement of debris in the stream.
C) Environmental Considerations-Earth moving equipment will cross and operate in the streamflow
only when necessary and only when directed to do so by the construction inspector. Equipment shall
be new or of low hours and be maintained to prevent fuel,oil and lubricant spills in the vicinity of the
stream. Equipment shall be cleaned by powerwashing prior to arriving at work site to prevent
the spread of non-native plant seeds. Refueling,repairs and lubrication will be performed at a safe
distances from the stream and only at locations approved by the construction inspector where water is
controlled by runoff control measures. A spill response kit shall be provided on site and the crew
shall be efficient in its use should a spill occur.
D) Safety Considerations-At work sites,where equipment will be operated on Forest Roads,flagman
shall be stationed to warn oncoming traffic of congestion. Construction road signs shall be in place
and a means of removing sediment,mud or rocks from roadways shall be established. The contractor
will be responsible for the implementation of these measures.
E) Equipment Specifications
Hydraulic Excavator#1:
• Track mounted,hydraulic powered
• Excavator:
o Min weight—60,000 lbs
o Min. Reach—23 feet
o Min Digging Depth—20 feet
o Min Bucket size —2.0 Cu Yd.
Upper Davidson River Re-Route and Cove Creek Bridge Replacement Project-SPECIFICATIONS 1 I P a g e

o Min 270 HP
o Equipped with hydraulic thumb,with experienced operator as described above.
(Unit price bid should be for one truck for one hour of running time).
Hydraulic Excavator#2:
• Track mounted,hydraulic powered
• Excavator:
o Min weight—25,000 lbs
o Min. Reach—22 feet
o Min Digging Depth—20 feet
o Min Bucket size — 1.0 Cu Yd.
o Min 115 HP
o Equipped with hydraulic thumb,with experienced operator as described above.
(Unit price bid should be for one truck for one hour of running time).
Off Road Dump Truck:
o Min.carrying capacity—25 tons
(Unit price bid should be for one truck for one hour of running time).
Dozer:
o Net Power Minimum: 104 hp
o Operating Weight 20,000 lbs
(Unit price bid should be for one truck for one hour of running time).
IN-STREAM STRUCTURES SPECIFICATIONS
STRUCTURE STONE
Description—Imported stone will not be used for this project
ROCK&LOG J-HOOK VANE
Description
This structure serves to decrease stress in the near-bank region while promoting scouring in the downstream pool.
Logs are placed at an angle to the stream bank,gradually inclining in elevation until they are located at or below the
bankfull surface directly adjacent to the stream bank.Water flowing downstream is forced over these logs towards
the middle of the channel,effectively scouring out a pool below.The quantity of log vanes may be increased,
decreased,or eliminated entirely at the direction of the designer.Such variations in quantity will not be considered
as alterations in the details of construction or a change in the character of the work(See Rock&Log J-hook vane
detail below)
Materials
Trees to be used for the vane shall be provided by the Forest Service from near the site.All log materials shall be
made of a hardwood species and shall be at least 10 inches in diameter.A sheet of woven geotextile fabric(4oz.or
greater,6-8' wide)shall be placed the length of the vane arm on the upstream side,stapled to the top log in a manner
that they will be covered by back fill material.Boulders shall be placed in the appropriate locations per the
construction detail.Back fill material shall be obtained from the stream channel bed.
Installation
Upper Davidson River Re-Route and Cove Creek Bridge Replacement Project-SPECIFICATIONS 2 I P a g e

A trench shall be dug in such a manner that the footer and header logs are buried beneath the bed surface elevation at
least three feet on both ends. An excavator, with a bucket that includes a hydraulic thumb, shall be used to place logs
under the supervision of Designer.
Logs shall be tightly sealed with no gaps between the header and footer log. Filter fabric shall be placed on the
upstream side of the structure and backfilled with materials excavated on -site to prevent the washout of sediment
through log gaps. Filter fabric shall extend from the bottom of footer log to the finished grade elevation and shall be
placed the entire length of the structure. Header and footer logs shall be tied in securely to the bank in such a way that
eliminates the possibility of water diverting around them. Structures shall be built to the approval of the Designer.
The Designer may adjust the number and placement of structures in the field.
Basis of Payment
This payment shall be considered full compensation for all labor, equipment, hauling, placing, handling, sorting,
fitting, materials, and incidentals necessary to construct the Log Vane. Trees to be used for the vane shall be
provided by the Forest Service.
Payment will be made under.
Equipment &
Labor................................................
Materials:
Woven geotextile fabric (6-8' Wide) .
HOURS
LINEAR FOOT
GAPS IN
INVERT TOP
ROCK
PLAN VIEW
MATERIAL
FROM POOL
USED TO
CONSTRUCT
INNER BERM
1/8 TO 1/4 OF END OF
LOGS BURIED IN _—s?—
STREAM BED WITH
BOULDERS ON TOP AT
BED ELEVATION
CONSTRUCTED POOL — MAX.
DEPTH © —%WBF
DOWNSTREAM FROM INVERT
TOPS OF TREES
BURIED UNDER RIVER
ROCK/FABRIC
Rack & Log J-hook
Vane Detail
MATERIAL
FROM POOL
USED TO
CONSTRUCT
INNER BERM
TOPS OF TREES
BURIED UNDER RIVER
ROCK/FABRIC
—. LOGS PLACED AT A 20°
ANGLE FROM BANK AND AT
A 2 — 4% SLOPE FROM
BANKFULL ELEVATION
Brady Dodd
NFNC Hydro
TOE-WOOD/SOD-MAT REVETMENT (BANKFULL BENCH)
Description
This structure serves to protect a length of stream bank by biulding a new bank with a bankfull area where
Upper Davidson River Re -Route and Cove Creek Bridge Replacement Project - SPECIFICATIONS
3IPage

one did not exist before due to unstable conditions (See Toe-wood/Sod mat detail below). The structure
creates a large undercut bank providing an abundance of aquatic cover type habitat.
Materials
Trees and brush to be used for the structure shall be provided by the Forest Service from near the site.
Shrubs and willow shall be provided by the Forest Service from near the site. Excavated soil shall be
hauled off the site and dumped within 5 miles by the contractor. Seed, mulch, coir matting, and
riparian plantings (live stakes, potted material, etc.) shall be provided and installed by the contractor.
Installation
The channel shall be excavated to build a bench on the channel bottom on the outside of the meander
bend. Its elevation shall be well below determined low water elevation. A deep pool shall be constructed
where the new thalweg will be located, and excavated material shall be used to build the point bar and
back fill the structure. Footer logs laying parrallel to the stream channel shall be placed on the bench, then
the toe -wood on top of that. Toe -wood shall consist of a mixture of sizes, but include several large tree
stems with root wads attached. Stems shall be pushed into the bank were possible. Trees, brush, and limbs
shall all be used to fill this area with woody debris, and be placed up to the low flow elevation. Bundles of
live stakes, e.g. willow, shall be placed on top of the woody debris and alluvial backfill shall be placed on
the structure (amount determined by Designer). Shrubs, excavated from nearby, shall be placed on top of
the toe -wood up to the bankfull elevation. This shrub mat will replace the "sod mat". From the bankfull
elevation the verticle slope shall be excavated to the 2:1 slope (run to rise). Excavated soil material shall
be scattered on the adjacent terrace. All slopes shall have seed, mulch, and coir matting installed. Riparian
plantings shall be installed on the slope and during the plant dormant season, live stakes shall be installed
in the bench and bank.
Terrace elevation
Stabilization of Vertical Banks on outside Meander Bend
Construction of Bankfull Bench using TOE WOOD/SOD MAT DETAIL
EXCAVATED BANK MATERIAL
CONS1RUCTION ITEMS AND
SEQUENCE:
Excavate high bank to construct a
2:1 slope from bankfull to terrace
elevation
Excavate & construct toe wood
bench and new channel pool
feature based on reference pool
dimensions
Place trees/logsttops on toe wood
bench & in toe of bank below low
flow
Place willow cuttings/bundles on
toe wood
Excavate sod mats (using a front
end loader) or shrub transplants
(e.g. alder, willow) and place on toe
wood up to bankfull elevation
Seed bank with native grass seed
Cover sod mat and sloped bank
with coir erosion control matting
Plant willow/silky
dogwood/elderberry cuttings into
relocated sod mat and bank to help
"pin" sod into bank
FOOTER LOGS
III ' !� II / I}anktcd.Elmian
„.�l[ 1,
�lY��j�rll 41/
l''
Toe Wood bench
SOD MAT
Low flow Elevation
TOE WOOD
Pre-coostruction
Channel Bottom
----
Channel Bottom
Brady Dodd
NFNC Hydro
Upper Davidson River Re -Route and Cove Creek Bridge Replacement Project - SPECIFICATIONS
41Page

Basis of Payment
This payment shall be considered full compensation for all labor,equipment,hauling,placing,handling,
sorting,fitting,materials,and incidentals necessary to construct the bankfull bench. Trees to be used for
the structure shall be provided by the Forest Service.
Payment will be made under:
Equipment&
Labor.................................................................................................. HOURS
Materials:
Coir Matting LINEAR FOOT
Seed ......................................................................................................ACRE
RiparianPlantings......................................................................................EACH
EROSION CONTROL SPECIFICATIONS
SEED (NATIVE)
Description—SHALL BE INSTALLED BY TROUT UNLIMITED VOLUNTEERS
Seeding shall occur within 24 hours of ground disturbing activities. Seed shall be applied by hand or with
a cyclone seeder and on steep slopes be immediately covered with leaf litter,raked in from the
surrounding area. On stream banks,biodegradable matting/blanket shall be placed to keep seed and soil in
place.Below are native grass species to be sown and their seeding density of pure live seed.
Community Type:Riparian
Scientific Name Common Name Planting Density
Elymus virginicus Virginia wild rye 40 lbs/acre
Festuca rubra Creeping red fescue 10 lbs/acre
Materials
All materials shall meet the approval of the Designer.
Basis of Payment
Payment for installation of seed and mulch will be paid for as outlined. This payment shall be considered full
compensation for all labor, equipment, furnishing materials, hauling, rehandling, sorting, materials, and
incidentals necessary to seed and mulch.
Payment will be made under:
Seed . ACRE
MATTING
Materials
All materials shall meet the approval of the Designer and include Coir fiber mat 700(6-8 feet wide),hardwood
stakes,and live stakes(see "Planting" Specs).
Installation
Coir fiber mat 700 shall be used on upper and lower stream banks(above and below the bankfull
elevation). The matting shall be fastened in place using hardwood stakes. During the following plant
dormant season,live stakes shall be planted in the matting from water's edge to just above bankfull.
Upper Davidson River Re-Route and Cove Creek Bridge Replacement Project-SPECIFICATIONS 5 I P a g e

Species include silky dogwood(Cornus ammonum),black willow(Salix nigra), silky willow(Salix
sericea),ninebark(Physocarpus opulifolius)and common elderberry(Sambucus canadensis)from a local
source.
Provide stakes made of hardwood to anchor the matting. Stakes shall be installed to no less than 1 foot
deep for use on side slopes and along the top edge of matting.
Place the matting upon final grading,following seed and mulch application. Provide a smooth soil surface
free from stones,clods,or debris which will prevent the contact of the matting with the soil.Unroll the
matting on the contour, starting at the bottom of the slope and apply without stretching such that it will lie
smoothly but loosely on the soil surface.Bury the top end of each piece of matting in a narrow trench at
least 6 in.(150 mm)deep and tamp firmly after staking with evenly spaced stakes. Stake the matting
according to the manufactures recommended pattern for specific product and slope. Where one roll of
matting ends and a second roll begins,install matting end-over-end with approximately 6 inches of
overlap. Stake through overlapped area. Install stakes across the matting at ends,junctions,and trenches
approximately 1.3 feet apart.
Basis of Payment
Payment for installation of matting will be paid for as outlined.This payment shall be considered full compensation
for all labor,equipment,furnishing materials,hauling,stockpiling,rehandling,sorting,fitting,materials, and
incidentals necessary to install matting.
Payment will be made under:
Matting LINEAR FOOT
PLANTINGS
Description
Contractor shall provide Plantings from 1-gallon containers and Live Staking during the 2020/2021 plant
dormancy season for volunteers to plant.Below is a list of woody vegetation species to be planted on
stream banks and floodplains.
Scientific Name Common Name Percent of plantings Spacing(feet)
Container& Bare Root Species:
Alnus serrulata Tag Alder 20% 3
Calycanthus floridus Sweetshrub 10% 3
Clethra acuminata Cinnamon Bark Clethra 10% 4
Ham amelis virginiana Witch Hazel 10% 4
Hypericum densiflorum Bushy St. Johns 10% 4
Itea virginica 10% 4
Xanthorhiza simplicissima Yellowroot 10% 2.5
Platanus occidentalis Sycamore 20% 6
_Live Stake Species:
Cornus ammonum silky dogwood 10 3
Salix nigra black willow 20 3
Salix sericea silky willow 20 3
Salix humilis prairie willow 10 3
Sambucus canadensis common elderberry 30 3
Physocarpus opulifolius ninebark 10 3
Upper Davidson River Re-Route and Cove Creek Bridge Replacement Project-SPECIFICATIONS 6 I P a g e

Materials
All materials shall meet the approval of the Designer.
Basis of Payment
Payment for provision of plantings will be paid for as outlined.This payment shall be considered full compensation
for all equipment,furnishing materials,hauling,rehandling, sorting,materials,and incidentals necessary to
deliver plants to the site.
Payment will be made under:
Plantings ....................
EACH
MINIMIZING DETRIMENTAL IMPACTS
A. Minimize the area and degree of soil disturbance that reduces infiltration capacity and
permeability and destroys protective forest floor and ground cover.
B. All hazardous materials will be stored outside of flood-prone areas and surrounded with sediment
fence to reduce the risk of materials reaching the river.
C. Work activities would not be scheduled on rainy days.
D. Heavy Equipment Operation.
1. All equipment shall be cleaned before entering the project area and stream,so as to
reduce the risk of fine-grained sediment and oils and grease from entering the stream.
This would also reduce the risk of invasive weed spread onto the Forest.
2. Do not operate on wet soils when they are most susceptible to damage and erosion.
3. Operate heavy equipment on slopes less than 12 percent so as to reduce the risk of soil
erosion. Avoid operating heavy equipment on over-hanging stream banks.
4. Move large woody debris in a manner that minimizes disturbance of the forest floor,
exposure of mineral soil,or degradation of stream bank stability.
E. Install sediment fence to trap potential sediment. Stabilize any disturbed area at the end of each
workday.
F. Re-vegetate exposed soils as soon as possible to take advantage of the loose soil conditions for
seeding.
1. Exposed soil will be covered with straw mulch or erosion control matting at the end of
the project.Matting will be secured in place with stakes and live stakes where conditions
allow.
2. Seeding and mulching will occur on all bare soil within five days of ground disturbing
activities to provide long-term erosion control.
G. Do not move sediment trap devices until the vegetation in the disturbed areas has been
established.
H. During on-going operations inspect the site frequently;inspect occasionally during inactive
periods.
1. Check for potentially damaging or failing situations that may cause unacceptable water
quality impacts.
2. Correct failing situations as soon as practical.
I. Conduct visual inspections of Davidson River and Cove Creek while the work is being conducted
to maintain acceptable turbidity levels.
Use a skilled heavy equipment operator,trained in stream restoration and construction of in-stream
structures. Instruct the operator to minimize disturbance to the streambed.
Upper Davidson River Re-Route and Cove Creek Bridge Replacement Project-SPECIFICATIONS 7 I P a g e