20171099 Ver 1_401 Application_20170831

Montalvo, Sheri A
From: Swartley, Bill
Sent: Thursday, October 05, 2017 10:04 AM
To: Montalvo, Sheri A
Cc: Higgins, Karen; Tillotson, Victoria
Subject: FW: Linville Permits paid
Sheri,
Per our morning phone conversation, see the email below from our Grant Program Coordinator, Victoria Tillotson, where
she cut and pasted from the XTND report. The interagency e -transfer of permit fees was made to both DWR and DEMLR
on 9/11:
Please let me know if other questions arise or if you need additional information.
Victoria — so you know, Sheri just called me inquiring on the permit fee to support our application to Karen Higgins, thus
sharing your previous email. Thanks for handling!
RIM
William (Bill) A. Swartley
Forest Hydrologist, Program Head
Water Resources Branch
PI02, Smith Incident Management Team
PIO1, HPDR, PETL, PETM - Single Resource
North Carolina Forest Service
NC Department of Agriculture & Consumer Services
512 N. Salisbury Street
1616 Mail Service Center, Raleigh, NC 27699-1600
(0) [phone]
(F) [phone]
B i 11. Swartleygncagr. gov
Visit the NCFS Water Quality (WQ) Web Site at: http://ncforestservice.gov/water quality/water quality.htm
NOTICE: E-mail correspondence to and from this address may be subject to the NC
Public Records Law and may be disclosed to third parties by an authorized state official.
From: Tillotson, Victoria
Sent: Monday, September 18, 2017 9:30 AM

To: Swartley, Bill <[e-mail]>; Gerow, Tom <[e-mail]>; Coats, William A
<[e-mail]>
Subject: Linville Permits paid
Hi Guys,
I checked XTND and the permits for the Linville River project have been paid. They were paid on 9/11/2017.
Just closing that loop.
VT
20 535120 09/11/2017 166108 WATER QUAL.APP. 570.00 566000372 408 NC DEP'
20 S35120 09/11/2011 16610S SEI?IMM .iMME 00.00 S6 6 0072 4p NC Dep'
Victoria Tillotson
Grant Program Coordinator
Water Resources Branch
NCDA &CS - North Carolina Forest Service
1616 Mail Service Center, Raleigh, NC 27699-1600
Phone: [phone]
V ictoria.Ti l lotson@`gr. jzov
http://ncforestservice.gov
NOTICE: E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties.

Steven W. Troxler
Commissioner
North Carolina Department of Agriculture
and Consumer Services
N.C. Forest Service
August 28, 2017
Scott Bissette
Assistant Commissioner
Karen Higgins 2 0 1 7 1 0 9 9
NC DWR, 401 and Buffer Permitting Unit
512 North Salisbury Street
Raleigh, NC 27604 t; M
z
Dear Ms. Higgins:
Please find enclosed the Pre -construction Notification (PCN) and supporting documentation to apply for a
Nationwide Permit (NWP) No. 27 for the Linville River Restoration project on Gill State Forest, near Newland,
NC.
The project is a non -compensatory stream improvement project on approximately 3,000 linear feet of the
Linville River. The goals of the project are to improve aquatic habitat, improve water quality, reduce streambank
erosion, restore floodplain connection, and establish native riparian vegetation. Natural channel design and
related stream stabilization practices will be utilized.
Copies of the PCN have also been mailed to the US Army Corps of Engineers and NC Wildlife Resources
Commission. Please contact me if you have any questions.
William A. Swartley
Forest Hydrologist & Program Head
Water Resources Branch, NC Forest Service
Enclosures: PCN and attachments (4 copies)
Check for $570.00
1616 Mail Service Center, Raleigh, North Carolina 27699-1616
Phone: [phone] • FAX: [phone] • www. ncforestservice.gov
An Equal Opportunity Employer
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Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
Page 1 of 10
PCN Form — Version 1.4 January 2009
Pre -Construction Notification (PCN) Form
A.
Applicant Information
1.
Processing
1 a. Type(s) of approval sought from the Corps:
❑X Section 404 Permit ❑ Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: 27 or General Permit (GP) number:
1c.
Has the NWP or GP number been verified by the Corps?
❑ Yes ❑X No
1d.
Type(s) of approval sought from the DWQ (check all that apply):
401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization
1 e.
Is this notification solely for the record
because written approval is not required?
For the record only for DWQ
401 Certification:
❑ Yes ❑X No
For the record only for Corps Permit:
❑ Yes ❑X No
1f.
Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in -lieu fee program.
❑ Yes ❑X No
1g.
Is the project located in any of NC's twenty coastal counties. If yes, answer 1h
below.
❑ Yes Q No
1 h.
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes Q No
2.
Project Information
2a. Name of project:
Linville River Restoration
2b. County:
Avery
2c.
Nearest municipality / town:
Crossnore
2d. Subdivision name:
N/A
2e.
NCDOT only, T.I.P. or state project no:
N/A
3.
Owner Information
3a.
Name(s) on Recorded Deed:
State of North Carolina
3b.
Deed Book and Page No.
68/515 & 68/516 (Tax Parcel No.: 183300532783) (www.averydeeds.com)
3c.
Responsible Party (for LLC if
applicable):
William "Bill" A. Swartley, North Carolina Forest Service
3d.
Street address:
512 N. Salisbury Street
3e. City, state, zip:
Raleigh, NC 27604-1170
3f.
Telephone no.:
919-857-4856
3g.
Fax no.:
919-857-4804
3h.
Email address:
[e-mail]
Page 1 of 10
PCN Form — Version 1.4 January 2009

4. Applicant Information (if different from owner)
4a. Applicant is:
❑ Agent ❑ Other, specify:
4b. Name:
4c. Business name
(if applicable):
4d. Street address:
4e. City, state, zip:
4f. Telephone no.:
4g. Fax no.:
4h. Email address:
5. Agent/Consultant Information (if applicable)
5a. Name:
5b. Business name
(if applicable):
5c. Street address:
5d. City, state, zip:
5e. Telephone no.:
5f. Fax no.:
5g. Email address:
Page 2 of 10

B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID):
1183300532783
1 b. Site coordinates (in decimal degrees):
ILatitude: 36.009945 Longitude: -81.931868
1c. Property size:
474 acres
2. Surface Waters
2a. Name of nearest body of water to proposed project:
Linville River
2b. Water Quality Classification of nearest receiving water:
B; Tr
2c. River basin:
Catawba
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
see attached
3b. List the total estimated acreage of all existing wetlands on the property:
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
3d. Explain the purpose of the proposed project:
see attached
3e. Describe the overall project in detail, including the type of equipment to be used:
see attached
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project(including all priorphases) in thepast?
❑ Yes © No ❑ Unknown
Comments:
4b. If the Corps made the jurisdictional determination, what type
of determination was made?
Preliminary Final
4c. If yes, who delineated the jurisdictional areas?
Name (if known):
Agency/Consultant Company:
Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
5. Project History
5a. Have permits or certifications been requested or obtained for
this project (including all prior phases) in the past?
❑ Yes ❑X No ❑Unknown
5b. If yes, explain in detail according to "help file" instructions.
6. Future Project Plans
6a. Is this a phased project?
❑ Yes Q No
6b. If yes, explain.
Page 3of10
PCN Form —Version 1.4 January 2009

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑ Wetlands © Streams —tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1 -
Choose one
Choose one
Yes/No
-
W2 -
Choose one
Choose one
Yes/No
-
W3 -
Choose one
Choose one
Yes/No
-
W4 -
Choose one
Choose one
Yes/No
-
W5 -
Choose one
Choose one
Yes/No
-
W6 -
Choose one
Choose one
Yes/No
-
2g. Total Wetland Impacts:
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary m
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 P
Stream Restoration
Linville River
PER
Corps
70
2,989
S2 -
Choose one
S3 -
Choose one
S4 -
Choose one
S5 -
Choose
S6 -
Choose one
3h. Total stream and tributary impacts
2,989
3i. Comments:
Page 4 of 10
PCN Form — Version 1.4 January 2009

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individually list all open water impacts below.
4a.
Open water
impact number
Permanent (P) or
Temporary
4b.
Name of waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody
type
4e.
Area of impact (acres)
01 -
Choose one
Choose
02 -
Choose one
Choose
03 -
Choose one
Choose
04 -
Choose one
Choose
4f. Total open water impacts
4g. Comments:
S. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
Pond ID number
5b.
Proposed use or
purpose of pond
5c. 5d. 5e.
Wetland Impacts ('acres) Stream Impacts (feet) Upland
(acres)
Flooded Filled
Excavated Flooded
Filled
Excavated
P1
Choose one
P2
Choose one
5f. Total:
5g. Comments:
5h. Is a dam high hazard permit required?
E] Yes No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then you MUST fill out Section D of this form.
6a. Project is in which protected basin?
❑ Neuse Tar -Pamlico ❑ Catawba ❑ Randleman ❑ Other:
6b.
Buffer Impact
number —
Permanent (P) or
Temporary
6c.
Reason for impact
6d.
Stream name
6e.
Buffer
mitigation
required?
6f.
Zone 1
impact
(square
feet)
6g.
Zone 2
impact
(square
feet
131 -
Yes/No
B2 -
Yes/No
B3 -
Yes/No
B4 -
Yes/No
B5 -
Yes/No
B6 -
Yes/No
6h. Total Buffer Impacts:
6i. Comments:
Page 5 of 10

D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
As this is a river restoration project, it is impossible to completely avoid impacts to jurisdictional waters. The intents of the project are to improve
aquatic habitat, improve water quality, reduce streambank erosion, restore floodplain connection, and establish native riparian vegetation. Natural
channel design and related stream stabilization practices will be utilized. The design reflects the minimum impact that can be applied to achieve the
desired long-term result.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Appropriate sediment and erosion control measures will be taken on site, in accordance with the attached design plans and an Erosion and Sediment
Control Plan filed with NC DEMLR. Appropriately sized equipment will be utilized to prevent excessive compacting and minimize Gearing. Construction
timing and sequencing will be strategically conducted to minimize impacts.
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?
❑ Yes Q No
2b. If yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
2c. If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
❑ Payment to in -lieu fee program
❑ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter)
Type: Choose one
Type: Choose one
Type: Choose one
Quantity:
Quantity:
Quantity:
3c. Comments:
4. Complete if Making a Payment to In -lieu Fee Program
4a. Approval letter from in -lieu fee program is attached.
❑ Yes
4b. Stream mitigation requested:
linear feet
4c. If using stream mitigation, stream temperature:
Choose one
4d. Buffer mitigation requested (DWQ only):
square feet
4e. Riparian wetland mitigation requested:
acres
4f. Non -riparian wetland mitigation requested:
acres
4g. Coastal (tidal) wetland mitigation requested:
acres
4h. Comments:
5. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 6 of 10
PCN Form —Version 1.4 January 2009

6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation?
Yes Q No
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
Zone
6c.
Reason for impact
6d.
Total impact
(square feet)
Multiplier
6e.
Required mitigation
(square feet)
Zone 1
3 (2 for Catawba)
Zone 2
1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund).
6h. Comments:
Page 7 of 10

E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers identified
Yes Q No
within one of the NC Riparian Buffer Protection Rules?
1 b. If yes, then is a diffuse flow plan included? If no, explain why.
❑ Yes ❑ No
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project?
0
2b. Does this project require a Stormwater Management Plan?
❑ Yes ©No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why:
This project is a river restoration project and does not include an increase in impervious area.
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
2e. Who will be responsible for the review of the Stormwater Management Plan?
3. Certified Local Government Stormwater Review
3a. In which localgovernment's jurisdiction is thisproject?
❑ Phase II
3b. Which of the following locally-implemented stormwater management programs
❑ NSW
❑ USMP
apply (check all that apply):
❑ Water Supply Watershed
❑ Other:
3c. Has the approved Stormwater Management Plan with proof of approval been
❑Yes ❑ No
attached.
4. DWQ Stormwater Program Review
❑Coastal counties
❑HQW
4a. Which of the following state-implemented stormwater management programs apply
❑ORW
(check all that apply):
❑Session Law 2006-246
❑ Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑ No
attached?
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements?
❑ Yes ❑ No
5b. Have all of the 401 Unit submittal requirements been met?
❑ Yes ❑ No
Page 8 of 10
PCN Form — Version 1.4 January 2009

F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
la. Does the project involve an expenditure of public (federal/state/local) funds or the
© Yes ❑ No
use of public (federal/state) land?
1 b. 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
❑ Yes Q No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
letter.) Project is non -compensatory stream restoration/enhancement and therefore falls
El Yes E] No
Comments: under the provisions of 15NCAC 01C.0408 and does not require env documentation.
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards,
❑Yes Q No
or Riparian Buffer Rules (15A NCAC 2B.0200)?
2b. Is this an after -the -fact permit application?
❑Yes Q No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in
❑ Yes Q No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
This project is a river restoration project on State-owned land and will not lead to additional development.
4. Sewage Disposal (DWQ Requirement)
4a. 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.
Wastewater will not be generated as part of this river restoration project.
Page 9 of 10
PCN Form — Version 1.4 January 2009

5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or
Yes ❑ No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
❑ Yes ❑X No
impacts?
5c. If yes, indicate the USFWS Field Office you have contacted.
-
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
The NC Natural Heritage Program website was used to search for natural heritage elements on/near the project site. Four were identified, with two that
are federally listed: Grandfather Mountain Crayfish (Federal Species of Concern) and Northern Long-eared Bat (Threatened, with Interim 4(d) Rule).
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat?
❑ Yes ❑X No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
South Atlantic Fishery Management Council Habitat and Ecosystem Atlas (http:/ocean.floridamarine.org/safmc_atias)
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
❑ Yes ❑X No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
The NCSHPO GIS website shows no historic or archeological resources within the project site (http:/gis.nodr-r.gov/hpoweb) (Note: The nearest historic
or archeological resource to the project is Sloop's Dam and Powerhouse on the Linville River (AV0082), which will not be affected by the project.)
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA -designated 100 -year floodplain?
❑X Yes ❑ No
8b. If yes, explain how project meets FEMA requirements:
The applicant is working with Avery County and the state of North Carolina to ensure the river restoration project meets FEMA requirements.
8c. What source(s) did you use to make the floodplain determination?
NC Floodplain Mapping / FIRM
William A. Swartley
August 28, 2017
Applicant/Agent's Printed Name
Date
Applicant/ gents ature
(Agent's signature is valid only if an authorization
letter from the applicant isprovided.)
Page 10 of 10

Pre -Construction Notification (PCN) Form — Attached Information
Linville River Restoration, Avery County, North Carolina
3a. The project site consists of the riparian corridor of 2,989 feet of the Linville River on the property
of Gill State Forest, near Newland, North Carolina. This reach of the Linville River contains
unvegetated streambanks, eroding streambanks, large mid -channel bars, and reduced floodplain
access. The present degraded condition of the river is partially due to waterway relocation and
channelization practices that were likely conducted in the 1950 to 1970 timeframe, primarily as flood
control measures. This has resulted in eroding, unstable river banks that are contributing sediment to
the waterway. The alteration of in -channel hydrologic flow patterns has resulted in increased substrate
sedimentation as there is no longer sufficient water energy to mobilize the accumulated sediment,
outside of periodic storm events. The high degree of substrate embeddedness due to siltation and
sedimentation has substantially reduced available aquatic habitat. During storm events, unstable river
banks release sediment and mature riparian vegetation periodically falls into the channel due to
excessive bank erosion. Much of the river reach is disconnected from the floodplain, thus
exacerbating in -channel erosion processes during high water events. The stream classification for this
portion of the Linville River is B, Tr (Trout) according to the North Carolina Department of
Environmental Quality, Division of Water Resources. The project site is wholly located on one parcel,
as shown in the attached parcel map. The attached photos and aerial photography provide
representative views of the current site conditions.
3b. The Gill State Forest property is very large, and acreage of total wetlands is unknown. The
proposed project will not affect any wetlands.
3c. The Gill State Forest property is very large, and total stream length is unknown. The proposed
project will affect 2,989 linear feet of the Linville River.
3d. The goals of the project are to improve aquatic habitat, improve water quality, reduce
streambank erosion, restore floodplain connection, and establish native riparian vegetation.
3e. Natural channel design and related stream stabilization practices will be utilized. The attached
plans show the design approach. Within the 2,989 foot reach, the design includes the following:
-removal of large mid -channel bars, and associated realignment of the channel
-minor realignment of the channel to create appropriate dimensions and floodplain access
-development of an appropriate riffle -pool sequence through the project reach
-installation of multiple log and boulder in -stream structures, with the goals of grade control, bank
protection and habitat enhancement through pool creation
-installation of toe wood on some streambanks, with the goals of bank protection and habitat
enhancement
Any woody material cleared from the site will be incorporated into the new streambed and banks as
part of in -stream structures, toe wood, and riffle bed. Typical stream construction equipment will be
used including backhoes and trackhoes. Appropriate sediment and erosion control measures will be
implemented and monitored throughout construction.

Avery County, NC WebG1S
https://www.webgis.net/Common/print.ph
Disclaimer: The information contained on this page is NOT to be construed or used as a survey or legal Approx. Scale 1:17838
description. Map information is believed to be accurate but accuracy is not guaranteed.
0 0.3 mi 0.6 mi
Attributes at point: 1134763, 834154
Layer: Census Tracts (2000) Layer: Townships
STCNTRBG: 370119902 4 Township: Altamont
1 of 1 8/20/17,6:11 PD
Layer: Parcels
Parcel Number:
183300532783
Land Value:
1659000
Deed—Date:
19000101
Total Value:
3923500
Acreage:
474.000AC
Approved By:
6
Owner Name:
N C DEPT OF ADMIN
Year Built:
1975
Account Number:
15780
Fire Department:
2
Additional Info:
6065 LINVILLE FALLS HWY Township Code:
1
Mailing Addr1:
FOREST SERVICE
MNBH_NO:
250
Mailing Addr2:
PO BOX 1351
Acres (measured):
462.952
Mailing City:
RALEIGH
Deed Book:
36
Mailing State:
NC
Deed Page:
506
ZIP:
255162526
Deed Date:
01/01/1900
House Number:
6065
Appraisal Date:
07/15/2011
Street Name:
LINVILLE FALLS
Size:
474
Street Type:
HWY
Units:
Acres
Bldg Value:
2250500
Shape.STArea():
20166225.032288
Other Bldg Value:
14000
Attributes at point: 1134763, 834154
Layer: Census Tracts (2000) Layer: Townships
STCNTRBG: 370119902 4 Township: Altamont
1 of 1 8/20/17,6:11 PD

Existing Site Conditions
Upstream view from upstream end of existing
mid -channel bar
Downstream view of mid -channel bar and left
branch of Linville River

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LINVILLE RIVER REACH 2 RESTORATION
6065 LINVILLE FALLS HWY, NEWLAND, NC 28657- AVERY COUNTY
SHEET INDEX
TITLE SHEET 1.0
PROJECT OVERVIEW 2.0
PROPOSED CROSS-SECTIONS
PROPOSED PLAN AND PROFILE
PROPOSED S&EC PLAN
PROPOSED PLANTING PLAN
PROPOSED STRUCTURE DETAILS
3.0
4.0
5.0
6_0
7.0
60% PLANS FOR PERMITTING
SUBMITTED ON AUGUST 25, 2017
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PROJECT DIRECTORY
LAND OWNER
NC FOREST SERVICE
BILL SWARTLEY
919.857.4856
[e-mail]
COORDINATOR
RESOURCE INSTITUTE, INC.
CHARLES ANDERSON
336.830.0595
[e-mail]
ENGINEER
JENNINGS ENVIRONMENTAL
GREG JENNINGS, PHD, PE
919.600.4790
[e-mail]
CONSTRUCTION
NORTH STATE ENVIRONMENTAL
DARRELL WESTMORELAND
336.725.2010
[e-mail]
SHEET INDEX
TITLE SHEET 1.0
PROJECT OVERVIEW 2.0
PROPOSED CROSS-SECTIONS
PROPOSED PLAN AND PROFILE
PROPOSED S&EC PLAN
PROPOSED PLANTING PLAN
PROPOSED STRUCTURE DETAILS
3.0
4.0
5.0
6_0
7.0
60% PLANS FOR PERMITTING
SUBMITTED ON AUGUST 25, 2017
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USE EXISTING PATH TO —�
REMNANT FORD CROSSING
UPSTREAM RIVER ACCESS
CONSTRUCTION SCHEDULE
1. OBTAIN EROSION AND SEDIMENTATION PLAN APPROVAL, TROUT BUFFER
VARIANCE WAIVER, AND ALL OTHER APPLICABLE PERMITS.
1. NOTIFY INSPECTOR FROM ASHEVILLE REGIONAL OFFICE OF DED PRIOR TO
DISTURBANCE,
2. POST CERTIFICATE OF APPROVAL FOR LAND DISTURBANCE AT SITE.
3. INSTALL RAIN GAUGE AND PREPARE INSPECTION FORMS AS DESCRIBED
ABOVE.
4. FLAG THE WORK UMITS AND STAKE OUT THE EXTENTS AND ELEVATIONS OF
THE PROJECT.
5. FLAG THE EXTENTS OF THE TROUT BUFFER IN AREAS WHERE NO LAND
DISTURBANCE WILL OCCUR.
6. LOCATE ALL UNDERGROUND UTILITIES WITHIN THE WORKSITE.
7. HOLD PRECONSTRUCTION MEETING PRIOR TO STARTING CONSTRUCTION.
8. INSTALL CONSTRUCTION ENTRANCES, ACCESS ROADS AND SILT FENCE PER
THE ATTACHED PLAN SHEETS AND DETAILS.
9. INSPECT EROSION AND SEDIMENTATION CONTROL PRACTICES DAILY AND
AFTER SIGNIFICANT RAINFALL EVENTS. MAKE NEEDED REPAIRS IMMEDIATELY.
10. STOCKPILE MATERIALS FOR STREAM WORK (E.G.. BOULDERS, LOGS, WOODY
DEBRIS) OUTSIDE OF THE TROUT BUFFER (AT LEAST 25 FEET FROM THE TOP
OF BANK).
11. TO THE EXTENT PRACTICABLE WORK ITERATIVELYP
FROM UPSTREAM 70
DOWNSTREAM THROUGHOUT THE PROJECT REACHES. CONTRACTOR SHALL
LIMIT STREAMBANK DISTURBANCE TO AREAS THAT CAN BE COMPLETED AND
STABIUZEO DURING ONE DAY OF WORK DURING EACH ZONE OF
DISTURBANCE, FOLLOW THE FOLLOWING STEPS:
• AS NEEDED TO IMPLEMENT BANK GRADING, REMOVE VEGETATION. DO
NOT REMOVE HEALTHY, NATIVE VEGETATION FROM AREAS WHERE NO
GRADING OR STRUCTURE INSTALLATION WILL OCCUR. STOCKPILE
VEGETATION FOR REPLANTING, AS APPROPRIATE.
• AS SHOWN ON PLANS, REALIGN CHANNEL ENSURE CONSTRUCTED
SLOPES ARE GRADED AT A31 SLOPE OR FLATTER, UNLESS DIRECTED
OTHERWISE BY THE FIELD ENGINEER. WHEN POSSIBLE, PERFORM WORK
FROM STREAMBANKS IN ORDER TO MINIMIZE TIME SPENT WORKING IN
THE CHANNEL.
• INSTALL IN -STREAM STRUCTURES, BEDFORM FEATURES, AND
STREAMBANK PROTECTION PER THE PLANS. WHEN POSSIBLE, PERFORM
WORK FROM STREAMBANKS IN ORDER TO MINIMIZE TIME SPENT
WORKING IN THE CHANNEL
• INSTALL COIR STREAMBANK MATTING AND TEMPORARY SEEDING ON ALL
DISTURBED SURFACES ON THE STREAMBANK UP TO THE TOP OF BANK.
12. ANY AREA DISTURBED WITHIN 25 FEET FROM THE TOP OF THE STREAM BANK
SHALL BE PROVIDED WITH TEMPORARY GROUND COVER SPECIFIED IN THE
VEGETATION PLAN W THIN 10 CALENDAR DAYS, UNLESS SUPERSEDED BY THE
CONDITIONS OF GENERAL STORMWATER PERMIT NCG 010000.
13. ONCE SITE IS STABILIZED, REMOVE AND DISPOSE OF ALL
NONBODEGRADABLE EROSION CONTROL DEVICES.
14. NOTIFY INSPECTOR FROM ASHEVILLE REGIONAL OFFICE OF DEQ AFTER
STABIUZATION.
15. WHEN APPROPRIATE, INSTALL PERMANENT VEGETATION PER PLANTING
PUNS.
E&SC PLAN
DURING PROJECT IMPLEMENTATION, BMPS/CONSERVATION MEASURES WILL BE
IMPLEMENTED TO REDUCE SEDIMENTATION INTO THE LINVILLE RIVER. EFFORTS
WILL BE LADE TO LIMIT AND EXPEDITE EQUIPMENT TIME IN THE STREAM CHANNEL
WHEN POSSIBLE, WORK WILL OCCUR FROM THE
STREAMBANKS. THE DESIGN ATTEMPTS TO MINIMIZE SEDIMENTATION AND OTHER
POTENTIALLY NEGATIVE IMPACTS THROUGH THE FOLLOWING PRACTICES:
• THECONTRACTOR WILL BE REQUIRED TO STAGE AND STORE EQUIPMENT
ANDMATERIALS OUTSIDE OF THE TROUT BUFFERS (25 UNEAR FEET FROM
TOP OF BANKS).
• EQUIPMENT WLL BE VVELL-MAINTAINED, CLEANED PRIOR TO
MOBILIZATION, AND CHECKED DAILY FOR LEAKS OF PETROLEUM
PRODUCTS.
• FUELING WILL BE PERFORMED IN A CONTAINED AREA OUTSIDE OF THE
TROUT BUFFER.
• THE CONTRACTOR WILL BE REQUIRED TO STAGE WORK SUCH THAT
DISTURBED AREAS WILL BE STABILIZED IN PHASES WITH SEEDING, MULCH
rv�r r n rwr i vinvnYv nr\�n
WITH SILT FENCE ON RIVER SIDE
AND BIODEGRADABLE (COIR) EROSION CONTROL MATTING (WHERE
APPROPRIATE).
• ALL TREES, UTILITIES AND OTHER SITE FEATURES WALL BE PROTECTED
UNLESS MARKED FOR REMOVAL OR RELOCATION.
• ALL WORK ADJACENT TO STREAM WATERS WLL BE CONDUCTED IN A DRY
WORK AREA TO THE EXTENT POSSIBLE.
• TO THE EXTENT POSSIBLE, CONSTRUCTION WILL BE TIMED TO OCCUR
WRING TIMES OF LOW FLOW.
• APPROPRIATELY SIZED EQUIPMENT WALL BE UTILIZED TO PREVENT
EXCESSIVE COMPACTING AND MINIMIZE CLEARING.
• CONSTRUCTION SCHEDULING AND STAGING WLL BE TIMED TO MINIMIZE
THE AMOUNT OF TIME SPENT WORKING IN THE STREAM CHANNEL.
SILT FENCE
PRIOR TO ANY SOIL DISTURBANCE, APPROXIMATELY 500 FEET OF WOVEN 4 OZ.
SILT FENCE W TH PREATTACHED METAL OR HARDWOOD STAKES AT 4 FOOT
INTERVALS WILL BE INSTALLED ON THE SITE AS INDICATED ON THE ATTACHED
PLAN SHEETS AND THE DETAIL BELOW. SILT FENCE WLL BE LOCATED ALONG THE
DOWNSTREAM SIDE OF THE STAGING AREAS. AT THE END OF THE PROJECT, WHEN
ALL DISTURBED AREAS HAVE BEEN STABILIZED, ALL SILT FENCE WLL BE
REMOVED. MATERIAL SPECIFICATIONS INSTALLATION PROCEDURES AND
MAINTENANCE SHALL CONFORM TO SECTION 8.62 OF THE NORTH CAROLINA
SEDIMENT CONTROL PLANNING AND DESIGN MANUAL, INCLUDING THE
CONSTRUCTION DETAIL
SITE ACCESS AND STAGING
SITE ACCESS WILL BE VIA AN EXISTING HARDENED GRAVEL DRIVE OFF OF LINVILLE
FALL HIGHWAY, AS NOTED WITHIN THE ENGINEERING PLANS. ACCESS WTHIN THE
PROJECT WILL UTILIZE EXISTING DIRT AND GRAVEL ROADS. TWO STAGING AREAS
FOR EQUIPMENT AND MATERIALS WILL BE CREATED WITHIN AREAS THAT ARE
CURRENTLY UNVEGETATED. ONE STAGING AREA WLL BE LOCATED NEAR THE
UPSTREAM END OF THE PROJECT; THE OTHER WLL BE NEAR THE DOWNSTREAM
END. BOTH WLL BE WHOLLY LOCATED OUTSIDE OF THE TROUT
roads. SILT FENCE WILL BE INSTALLED ALONG THE DOWNSTREAM EDGES OF EACH
STAGINGAREA
STREAMBANK MATTING
NORTH AMERICAN GREEN C1258N (OR EQUIVALENT) MATTING WILL BE USED
ALONG NEWLY GRADED STREAM BANK SECTIONS. MATTING WILL NOT CONTAIN
SYNTHETIC (PLASTIC) MATERIALS. MATTING WILL BE INSTALLED BEGINNING AT THE
TOE OF STREAMBANK TO THE TOP OF THE BANK AND WILL EXTEND ABOVE THE
TOP OF BANK BY A MINIMUM OF ONE FOOT. THE UPPER EDGE OF MATTING WILL BE
TRENCHED IN AND STAKED AS SPECIFIED IN THE PLANS. A COMBINATION OF
12 -INCH AND 24 -INCH WOODEN STAKES WILL BE USED TO SECURE THE MATTING IN
PLACE.
DUSTCONTROL
EXPOSED SOILS ON LEVEL SURFACES WILL BE KEPT MOIST DURING DRY
CONDITIONS TO MINIMIZE THE POTENTIAL FOR WIND EROSION AND DUST
ACCUMULATION.
STORMWATER
THE RIVER RESTORATION PROJECT WILL NOT CREATE ADDITIONAL POINT
SOURCES OF STORMWATER. THE INTENT OF THE PROJECT IS TO IMPROVE
OVERALL WATER QUALITY IN THE LINVILLE RIVER BY STABILIZING ERODING
STREAMBANKS, PROVIDING FLOODPLAIN STORAGE, AND PROMOTING
APPROPRIATE RIPARIAN
VEGETATION. ALL CONSTRUCTION ACTIVITIES WILL CONFORM TO NORTH
CAROLINA GENERAL STORMWATER PERMIT NCG 10000.
SPECIFICALLY:
• SOIL STABILIZATION SHALL BE ACHIEVED ON ANY AREA OF A SITE WHERE
LAND -DISTURBING ACTIVITIES HAVE TEMPORARILY OR PERMANENTLY
CEASED ACCORDING TO THE FOLLOWING SCHEDULE: 0 ALL PERIMETER
DIKES, SWALES, DITCHES, PERIMETER SLOPES AND ALL SLOPES STEEPER
THAN 3 HORIZONTAL TO 1 VERTICAL (3: 1) SHALL BE PROVIDED
TEMPORARY OR PERMANENT STABILIZATION W TH GROUND COVER AS
SOON AS PRACTICABLE BUT IN ANY EVENT WITHIN 7 CALENDAR DAYS
FROM THE LAST LAND -DISTURBING ACTIVITY.
• ALL OTHER DISTURBED AREAS SHALL BE PROVIDED TEMPORARY OR
PERMANENT STABILIZATION WITH GROUND COVER AS SOON AS
TOTAL LOD = 9.88 AC
PRACTICABLE BUT IN ANY EVENT WITHIN 14 CALENDAR DAYS FROM THE
LAST LAND -DISTURBING ACTIVITY.
ALL INSPECTION AND REPORTING WALL CONFORM TO NORTH CAROLINA GENERAL
STORMWATER PERMIT NCG 010000. SPECIFICALLY, MINIMUM SELF -INSPECTION
AND REPORTING REQUIREMENTS ARE AS
FOLLOWS:
A A RAIN GAUGE SHALL BE MAINTAINED IN GOOD WORKING ORDER ON THE SITE.
8, A WRITTEN RECORD OF THE DAILY RAINFALL AMOUNTS SHALL BE RETAINED
AND ALL RECORDS SHALL BE MADE AVAILABLE TO DIVISION OF WATER
QUALITY OR AUTHORIZED AGENT UPON REQUEST. IF NO DAILY RAIN GAUGE
OBSERVATIONS ARE MADE DURING WEEKEND OR HOLIDAY PERIODS AND NO
INDIVIDUAL -DAY RAINFALL INFORMATION IS AVAILABLE, THE CUMULATIVE RAIN
MEASUREMENT FOR THOSE UNATTENDED DAYS WILL DETERMINE IF A SITE
INSPECTION IS NEEDED. (NOTE: IF NO RAINFALL OCCURRED, THE PERMITTEE
MUST RECORD -ZERO'.)
C. EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE INSPECTED TO
ENSURE THAT THEY ARE OPERATING CORRECTLY. INSPECTION RECORDS
MUST BE MAINTAINED FOR EACH INSPECTION EVENT AND FOR EACH
MEASURE. AT A MINIMUM, INSPECTION OF MEASURES MUST OCCUR AT THE
FREQUENCY INDICATED I ALL EROSION AND SEDIMENTATION CONTROL
MEASURES MUST BE INSPECTED BY OR UNDER THE DIRECTION OF THE
PERMITTEE AT LEAST ONCE EVERY SEVEN CALENDAR DAYS, AND II) ALL
EROSION AND SEDIMENT CONTROL MEASURES MUST BE INSPECTED BY OR
UNDER THE DIRECTION OF THE PERMITTEE WITHIN 24 HOURS AFTER ANY
STORM EVENT OF GREATER THAN 0.50 INCHES OF RAIN PER 24 HOUR PERIOD
D. INSPECTIONS ARE ONLY REQUIRED TO BE MADE DURING NORMAL BUSINESS
HOURS. WHEN ADVERSE WEATHER CONDITIONS WOULD CAUSE THE SAFETY
OF THE INSPECTION PERSONNEL TO BE IN JEOPARDY, THE INSPECTION CAN
BE DELAYED UNTIL IT IS DEEMED SAFE TO PERFORM THESE DUTIES (TIMES
WHEN INSPECTIONS WERE DELAYED BECAUSE OF SAFETY ISSUES SHOULD BE
NOTED IN THE INSPECTION RECORD.) IF THE INSPECTION CANNOT BE DONE
ON THAT DAY, IT MUST BE COMPLETED ON THE FOLLOWING BUSINESS DAY.
E. TWENTY-FOUR HOUR REPORTING FOR VISIBLE SEDIMENT DEPOSITION: 0 THE
PERMITTEE SHALL REPORT TO THE DIVISION OF WATER QUALITY CENTRAL
OFFICE OR THE APPROPRIATE REGIONAL OFFICE ANY VISIBLE SEDIMENT
BEING DEPOSITED IN ANY STREAM OR WETLAND OR ANY NONCOMPLIANCE
WHICH MAY ENDANGER HEALTH OR THE ENVIRONMENT. ANY INFORMATION
SHALL BE PROVIDED ORALLY OR ELECTRONICALLY WITHIN 24 HOURS FROM
THE TIME THE PERMITTEE BECAME AWARE OF THE CIRCUMSTANCES. II) A
WRITTEN SUBMISSION SHALL BE PROVIDED TO THE APPROPRIATE REGIONAL
OFFICE OF THE DIVISION OF WATER QUALITY WITHIN 5 DAYS OF THE TIME THE
PERMITTEE BECOMES AWARE OF THE CIRCUMSTANCES. THE WRITTEN
SUBMISSION SHALL CONTAIN A DESCRIPTION OF THE SEDIMENT DEPOSITION
AND ACTIONS TAKEN TO ADDRESS THE CAUSE OF THE DEPOSITION. THE
DIVISION OF WATER QUALITY STAFF MAY WAIVE THE REQUIREMENT FOR A
WRITTEN REPORT ON A CASE-BY-CASE BASIS.
F. RECORDS OF INSPECTIONS MADE DURING THE PREVIOUS 30 DAYS SHALL
REMAIN ON THE SITE AND AVAILABLE FOR AGENCY INSPECTORS AT ALL TIMES
DURING NORMAL WORKING HOURS, UNLESS THE DIVISION OF WATER QUAIJTY
PROVIDES A SITE-SPECIFIC EXEMPTION BASED ON UNIQUE SITE CONDITIONS
THAT MAKE THIS REQUIREMENT NOT PRACTICAL. OLDER RECORDS MUST BE
MAINTAINED FOR A PERIOD OF THREE YEARS AFTER PROJECT COMPLETION
AND MADE AVAILABLE UPON REQUEST THE RECORDS MUST PROVIDE THE
DETAILS OF EACH INSPECTION INCLUDING OBSERVATIONS, AND ACTIONS
TAKEN IN ACCORDANCE WITH THIS PERMIT. THE PERMITTEE SHALL RECORD
THE REQUIRED RAINFALL AND MONITORING OBSERVATIONS ON THE
INSPECTION RECORD FORM PROVIDED BY THE DIVISION OR A SIMILAR
INSPECTION FORM THAT IS INCLUSIVE OF ALL OF THE ELEMENTS CONTAINED
IN THE DIVISIONS FORM. USE OF ELECTRONICALLY -AVAILABLE RECORDS, IN
UEU OF THE REQUIRED PAPER COPIES FOR INSPECTION WILL BE ALLOWED IF
SHOWN TO PROVIDE EQUAL ACCESS HA
AND UTILITY AS THE RD -COPY
RECORDS. INSPECTION RECORDS MUST INCLUDE, AT A MINIMUM, THE
FOLLOWING: 1) IDENTIFICATION OF THE CONTROL MEASURES INSPECTED, 2)
DATE AND TIME OF THE INSPECTION, 3) NAME OF THE PERSON PERFORMING
THE INSPECTION, 4) INDICATION OF WHETHER THE MEASURES WERE
OPERATING PROPERLY, 5) DESCRIPTION OF MAINTENANCE NEEDS FOR THE
MEASURE, B) CORRECTIVE ACTIONS TAKEN (7) DATE OF ACTIONS TAKEN, AS
WELL AS THE LATE AND AMOUNTS OF RAINFALL RECEIVED. 11) VISIBLE
SEDIMENTATION FOUND OUTSIDE THE SITE LIMITS: INSPECTION RECORDS
MUST INCLUDE: 1) AN EXPLANATION AS TO THE ACTIONS TAKEN TO CONTROL
JV I I /\ GVV I I J1/-�VIIYV /'ll\LIQ
WITH SILT FENCE ON RIVER SIDE
USE EXISTING GRAVEL DRIVE FOR ACCESS
TO STAGING AREAS AND RIVER
SITE ACCESS PROVIDED BY EXISTING GRAVEL
DRIVE OFF LINVILLE FALLS HIGHWAY
FUTURE RELEASES, 2) ACTIONS TAKEN TO CLEAN UP OR STABILIZE THE
SEDIMENT THAT HAS LEFT THE SITE LIMITS AND 3) THE DATE OF ACTIONS
TAKEN. III) VISIBLE SEDIMENTATION FOUND IN STREAMS OR WETLANDS: ALL
INSPECTIONS SHOULD INCLUDE EVALUATION OF STREAMS OR WETLANDS
ONSITE OR OFFSITE (WHERE ACCESSIBLE) TO DETERMINE IF VISIBLE
SEDIMENTATION HAS OCCURRED.
IF THE DISCHARGE FROM A SITE RESULTS IN AN INCREASE IN VISIBLE STREAM
TURBIDITY, INSPECTION RECORDS MUST RECORD THAT EVIDENCE AND
ACTIONS TAKEN TO REDUCE SEDIMENT CONTRIBUTIONS.'CLEAN'
STORMWATER RUNNING ONTO THE PROJECT SITE FROM SURROUNDING
UNDISTURBED AREAS WILL BE HANDLED USING THE FOLLOW NG
APPROACHES:
• WRING WORK IN AND NEAR THE CHANNEL, TEMPORARY DIVERSIONS
WILL BE INSTALLED AS SITE CONDITIONS REQUIRE TO PREVENT
STORMWATER FROM ENTERING UNSTABILIZED CONSTRUCTION AREAIS
WE TO IRREGULAR TOPOGRAPHY, MATURE FORESTED VEGETATION, AND
MULTIPLE EXISTING RECEIVING WATERS, THE AREA THAT COULD
CONTRIBUTE STORMWATER TO THE PROJECT SITE IS AREAS AS A
RESULT, TEMPORARY DIVERSIONS WILL NOT BE REQUIRED AROUND THE
ENTIRE SITE. HOWEVER, WHEN THE POTENTIAL EXISTS FOR'CLEAN'
STORMWATER TO RUN ON TO AN AREA OF ACTIVE CONSTRUCTION, A
TEMPORARY DIVERSION WILL BE CONSTRUCTED AT AN APPROPRIATE
LOCATION.
• TEMPORARY DIVERSIONS SHALL CONSIST OF A TEMPORARY EARTHEN
DIVERSION DIKE, BUILT TO SPECIFICATIONS IN SECTION 8.20 OF THE
NORTH CAROLINA SEDIMENT CONTROL PUNNING AND DESIGN MANUAL,
INCLUDING THE CONSTRUCTION DETAIL BELOW'CLEAN' STORMWATER
DIVERTED BY THE DIKE SHALL BE ROUTED TO A STABLE AREA OF THE
LINVILLE RIVER ORA TRIBUTARY, AS APPROPRIATE AS PART OF FINAL
GRADING, THE DIVERSION DIKE WILL BE REMOVED AND GRADED. TO FINAL
DESIGN CONTOURS, THEN STABILIZED WITH VEGETATION.
SOLID WASTE
IT IS NOT ANTICIPATED THAT EXCAVATION FOR THIS PROJECT WILL UNEARTH ANY
SOLID WASTE. IN THE CASE THAT ANY SOLID WASTE IS INADVERTENTLY
EXCAVATED, THE FOLLOWING PROCEDURES WILL BE FOLLOWED:
• STOCKPILE SOLID WASTE OUTSIDE OF TROUT BUFFER.
• INSTALL SEDIMENT FENCE AROUND TEMPORARY STOCKPILE AS NEEDED
TO PREVENT SEDIMENT FROM WASHING OFF OF WASTE AND ENTERING
SURROUNDING AREAS.
• ARRANGE FOR WASTE DISPOSAL WITHIN 14 CALENDAR DAYS IN
ACCORDANCE WITH LOCAL AND SOLID WASTE REGULATIONS.
• AVERY COUNTY SANITATION DEPARTMENT: 828-737-5420
• NC DENR SOLID WASTE SECTION: 828-2964702
• REMOVE SILT FENCE AND GRADE ALL AREAS TO FINAL DESIGN.
MAINTENANCE OF E&SC MEASURES
ALL EROSION CONTROL AND SEDIMENTATION MEASURES WILL BE INSPECTED
DAILY AND AFTER SIGNIFICANT RAIN EVENTS BY THE ON SITE ENGINEER AND THE
CONTRACTOR. THE CONTRACTOR WLL ASSURE THAT ALL INSTALLATIONS ARE
FUNCTIONING PROPERLY AT THE END OF EACH WORK DAY. INSPECTION
REQUIREMENTS, AS DETAILED IN THE STORMWATER SECTION, WLL BE
FOLLOWED. ONCE THE SITE IS STABILIZED, ALL NON -BIODEGRADABLE EROSION
CONTROL MEASURES WILL BE REMOVED AND PROPERLY DISPOSED OF BY THE
CONTRACTOR.
20 FT WIDE
ACCESS PATH
TEMPORARY SILT FENCE
PER SECTION 6.62 OF THE NORTH CAROLINA SEDIMENT CONTROL
PLANNING AND DESIGN MANUAL
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TEMPORARY DIVERSION
PER SECTION 6.20 OF THE NORTH CAROLINA SEDIMENT CONTROL PLANNING AND DESIGN
MANUAL
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RIVERBANK AND RIPARIAN PLANTING SPECIFICATIONS
4,
MOUNTAIN ALLUVIAL FOREST - LIVE STAKES, BARE ROOT STOCK, CONTAINERIZED PLANTS OR TRANSPLANTS - 3.7 AC
SCIENTIFIC NAME
COMMON NAME
0
SPACING
OTY
Salix sericea
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RIVERBANK AND RIPARIAN PLANTING SPECIFICATIONS
TEMPORARY SEEDING, MULCHING AND SOIL PREP - 5.2 AC
MOUNTAIN ALLUVIAL FOREST - LIVE STAKES, BARE ROOT STOCK, CONTAINERIZED PLANTS OR TRANSPLANTS - 3.7 AC
SCIENTIFIC NAME
COMMON NAME
SIZE (CAL)
SPACING
OTY
Salix sericea
SILKY WILLOW
0.25" - 1.0"
611.4
650
Cephalanthus occidentalis
BUTTON BUSH
0.5011-1.01,
6 FT - 8 FT O.C.
650
Sambucus nigra ssp. canadensis
ELDERBERRY
0.25" - 1.0"
6 FT - 8 FT O.C.
650
Ainus serrulata
TAG ALDER
0.25" - 1.0"
6 FT - 8 FT O.C.
650
Comus amomum
SILKY DOGWOOD
0.25" - 1.0"
6 FT - 8 FT O.C.
650
RIVERBANK - LIVE STAKES, BARE ROOT STOCK, CONTAINERIZED PLANTS OR TRANSPLANTS -1.5 AC
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. SCALE: 1" = 100'
RIVERBANK AND RIPARIAN PLANTING SPECIFICATIONS
TEMPORARY SEEDING, MULCHING AND SOIL PREP - 5.2 AC
MOUNTAIN ALLUVIAL FOREST - LIVE STAKES, BARE ROOT STOCK, CONTAINERIZED PLANTS OR TRANSPLANTS - 3.7 AC
SCIENTIFIC NAME
COMMON NAME
SIZE (CAL)
SPACING
OTY
Salix sericea
SILKY WILLOW
0.25" - 1.0"
6 FT - 8 FT O.C.
650
Cephalanthus occidentalis
BUTTON BUSH
0.5011-1.01,
6 FT - 8 FT O.C.
650
Sambucus nigra ssp. canadensis
ELDERBERRY
0.25" - 1.0"
6 FT - 8 FT O.C.
650
Ainus serrulata
TAG ALDER
0.25" - 1.0"
6 FT - 8 FT O.C.
650
Comus amomum
SILKY DOGWOOD
0.25" - 1.0"
6 FT - 8 FT O.C.
650
RIVERBANK - LIVE STAKES, BARE ROOT STOCK, CONTAINERIZED PLANTS OR TRANSPLANTS -1.5 AC
SCIENTIFIC NAME
COMMON NAME
SIZE (CAL)
SPACING
QTY
Betula nigra
Piatanus occidentalis
RIVER BIRCH
SYCAMORE
0.25" - 1.0"
0.5011-1.01,
3 FT - 5 FT O.C.
3 FT - 5 FT O.C.
650
650
Liriodendron tulipifera
TULIP POPLAR
0.25" - 1.0"
3 FT - 5 FT O.C.
650
Fraxinus pennsytvanica
GREEN ASH
0.25"- 1.0"
3 FT - 5 FT O.C.
650
Carpinus caroliniana
IRONWOOD
0.25" - 1.0"
3 FT - 5 FT O.C.
650
Populus deltoides
EASTERN COTTONWOOD
0.25" - 1.0"
3 FT - 5 FT O.C.
650
PERMANENT SEEDING - 5.2 AC
SCIENTIFIC NAME
COMMON NAME
TYPE
APP. RATE
OTY
--
RIPARIAN SEED MIX
SEED
175 LBS / AC
910 LBS
E/ymus virginicus
VIRGINIA WILD RYE
SEED
20%.
---
Agrost/s perennans
AUTUMN BENT GRASS
SEED
15%
--
Pandcum vlrgatum
SWITCHGRASS
SEED
15%
--
Redbeckia hirta
BLACK-EYED SUSAN
SEED
10%
—
Coreopsis /anceo/ata
LANCELEAF COREOPSIS
SEED
10%
--
Andropogon gerardii
BIG BLUESTEM
SEED
10%
--
Juncus effusus
SOFT RUSH
SEED
10%
— —
Schizachynum scoparium
LITTLE BLUESTEM
SEED
5%
--
Sorghastrum nutans
INDIAN GRASS
SEED
5%
--
RIVERBANK AND RIPARIAN PLANTING SPECIFICATIONS CONT.
TEMPORARY SEEDING, MULCHING AND SOIL PREP - 5.2 AC
SCIENTIFIC NAME COMMON NAME TYPE
APP. RATE
QUANTITY
Secale Cereale RYE GRAIN SEED
220 LBS / AC
1,145 LBS
--- GROUND AG. LIMESTONE PELLET
2000 LBS / AC
10,400 LBS
-- 10-10-10 FERTILIZER PELLET
750 LBS / AC
3,900 LBS
—_ WHEAT STRAW MULCH STRAW
4000 LBS / AC
20,800 LBS
PLANTING NOTES
A. MOUNTAIN ALLUVIAL FOREST PLANTINGS SHALL EXTEND FROM BANKFULL OUT 20 FT OR THE EXCAVATION AND GRADING EXTENTS,
WHICHEVER IS GREATER.
B. RIVERBANK PLANTINGS SHALL EXTEND FROM INNER BERM TO 1 ROW BEYOND BANKFULL.
PLANTING TECHNIQUES
A. ENSURE THAT ROOTS ARE STRAIGHTENED AND FACE DOWNWARD.
B. CREATE PLANTING AREA FOR EACH PLANT AND EXCAVATE PIT
C. PLACE PLANTS IN PIT ENSURING ROOTS ARE FACING COMPLETELY DOWNWARD
D. HEEL IN SOIL AROUND PLANT AND PROCEED TO NEXT PLANTING LOCATION
E. NEWLY -PLANTED PLANTS NEED TO BE FASTENED TO THE SUBSTRATE FOR THE ESTABLISHMENT OF NEW ROOTS
F. ROOTS SHALL BE SPREAD IN THEIR NORMAL POSITION. ALL BROKEN OR FRAYED ROOTS SHALL BE CUT OFF CLEANLY.
G. THE DIAMETER OF THE PLANTING HOLES (PITS) FOR EACH PLANT SHOULD BE AT LEAST THREE TIMES THE DIAMETER OF THE ROOT
MASS. SCARIFY THE PLANTING PIT PRIOR TO EACH PLANT INSTALLATION.
H. SET PLANTS UPRIGHT IN THE CENTER OF THE PIT. THE BOTTOM OF THE ROOT MASS SHOULD BE RESTING ON UNDISTURBED SOIL.
I. PLACE BACKFILL AROUND BASE AND SIDES OF ROOT MASS, AND WORK EACH LAYER TO SETTLE BACKFILL AND TO ELIMINATE VOIDS AND
AIR POCKETS. WHEN PIT IS APPROXIMATELY 3'3 FULL, WATER THOROUGHLY BEFORE PLACING REMAINDER OF THE BACKFILL. WATER
AGAIN AFTER PLACING FINAL LAYER OF BACKFILL.
CONTAINER STOCK, LIVE STAKES AND BARE ROOT STOCK
A. STOCK SHALL HAVE BEEN GROWN IN A CONTAINER LONG ENOUGH FOR THE ROOT SYSTEM TO HAVE DEVELOPED SUFFICIENTLY TO
HOLD ITS SOIL TOGETHER ONCE REMOVED FROM THE CONTAINER.
B. CONTAINER PLANTS WILL NEED TO BE WATERED REGULARLY AND PLACED IN SHADY CONDITIONS UNTIL PLANTING OCCURS.
C. CUTTINGS SHOULD BE INSTALLED THE SAME DAY THEY ARE CUT. THE STAKE SHOULD BE ORIENTED WITH THE BUDS POINTED UP, AND
THE BOTTOM SHOULD BE CUT AT AN ANGLE FOR EASY INSERTION INTO THE GROUND.
D. ABOUT FOUR-FIFTHS OF THE LENGTH OF THE STAKE SHOULD BE BELOW GROUND AND ANGLED DOWNSTREAM. AN IRON BAR CAN BE
USED TO MAKE A PILOT HOLE TO PREVENT BARK FROM BEING DAMAGED DURING INSTALLATION.
PLANT LOCATIONS
A. NEW PLANTINGS SHALL BE LOCATED WHERE SHOWN ON PLAN EXCEPT WHERE CHANGES HAVE BEEN MADE BY THE ENGINEER ONSITE.
B. NECESSARY ADJUSTMENTS SHALL BE MADE ONLY AFTER APPROVED BY THE OWNER OR ENGINEER.
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NATIVE RIFFLE
DETAILED PLAN
NOT TO SCALE
NATIVE RIFFLE NOT TO SCALE
NOTES
1. THE NATIVE RIFFLE IS A STREAM AND RIVER RESTORATION DESIGN FEATURE THAT INCORPORATES
COARSE MATERIAL IN THE CHANNEL BOTTOM THAT WILL NOT BE MOBILIZED UNDER DEFINED FLOW
CONDITIONS. REPLACING (OR ADDING TO) THE NATIVE CHANNEL BED MATERIAL WITH LARGER DIAMETER
ROCK CREATES A RIFFLE THAT FUNCTIONS AS A RIGID GRADE CONTROL. LARGER ROCK MATERIAL
ENHANCES FLOW DIVERSITY AND TURBULENCE UNDER BASE FLOW CONDITIONS, WHICH PROMOTES
AQUATIC HABITAT, NUTRIENT PROCESSING AND RE -AERATION OF STREAM FLOW BENEFITING WATER
QUALITY. THE Dm, Dm, Dw OR D100 PARTICLES OF THE CONSTRUCTED MAY BE DESIGNED TO RESIST t6KF
WHILE ALLOWING SMALLER SUBSTRATE PARTICLES TO BE MOBILIZED AND REPLACED BY UPSTREAM
SEDIMENT SEDIMENT SUPPLY.
2. ALL SELECT RIFFLE MATERIAL SHALL BE NATIVE MATERIAL AVAILABLE ONSITE AND MEETS THE THE NA
RIFFLE SIZE SPECIFICATIONS. THE ENGINEER MUST APPROVE THE USE OF ALL ONSITE NATIVE MATERIAL.
3. THE GRAVEL AND COBBLE SUBSTRATE USED FOR THIS DESIGN FEATURE SHOULD BE PREFERENTIALLY
HARVESTED FROM THE EXISITING CHANNEL AND OTHER DESIGNATED MINING AREAS ONSITE.
4. SORTING AND SIEVING OF THE HARVESTED RIFFLE SUBSTRATE IS INCIDENTAL TO THE CONSTRUCTION OF
THIS STRUCTURE.
5. SELECT RIFFLE MATERIAL SHALL HAVE A GRADATION AS DEFINED IN THE TABLE WITHIN THIS DETAIL OR AS
APPROVED BY THE ENGINEER. SELECT RIFFLE MATERIAL SHALL BE WELL GRADED WHEN IT IS PLACED IN
THE CHANNEL.
6. FOR INSTALLATION, THE CONTRACTOR SHALL OVER EXCAVATE THE LENGTH OF THE RIFFLE, INSTALL 700
GRAM COIR FIBER EROSION CONTROL MATTING, KEY MATTING INTO THE RIFFLE TRENCH AND BACKFILL
WITH THE SPECIFIED SELECT RIFFLE MATERIAL TO THE ELEVATIONS SHOWN ON THE PROPOSED PROFILE.
7. CONSTRUCTED RIFFLE MATERIAL SHALL EXTEND A MINIMUM OF 3.0 FT U/S OF THE P.T. INTO THE GLIDE AND
D/S TO THE P.C.
8. P.T. AND P.C. STATIONS AND ELEVATIONS ARE INCLUDED IN THE PROPOSED PLAN AND PROFILE SHEETS.
9. SELECT RIFFLE MATERIAL DEPTH SHALL BE AT LEAST 2.5 TIMES THE DIDO (MM) SPECIFIED BY THE ENGINEER.
10. SELECT RIFFLE MATERIAL WILL BE PLACED AT A UNIFORM THICKNESS.
11. THE SELECT RIFFLE MATERIAL WILL BE PLACED SUCH THAT, IN CROSS-SECTION, ITS LOWEST ELEVATION
OCCURS IN THE CENTER OF THE CHANNEL AS PER THE DETAIL.
12. SELECT RIFFLE MATERIAL SHALL BE COMPACTED USING TRACK EQUIPMENT OR AN EXCAVATOR BUCKET
SUCH THAT FUTURE SETTLEMENT OF THE MATERIAL IS KEPT TO A MINIMUM.
13. THE SURFACE OF THIS STRUCTURE SHALL BE FINISHED TO A SMOOTH AND COMPACT SURFACE IN
ACCORDANCE WITH THE LINES, GRADES, AND CROSS-SECTIONS OR ELEVATIONS SHOWN ON THE
DRAWINGS. THE DEGREE OF FINISH FOR INVERT ELEVATIONS SHALL BE WITHIN 0.1 FT OF THE GRADES AND
ELEVATIONS INDICATED.
14. RE -DRESSING OF CHANNEL AND BANKFULL BENCH/FLOODPLAIN WILL LIKELY BE REQUIRED FOLLOWING
INSTALLATION OF IN -STREAM STRUCTURES AND SHALL BE CONSIDERED INCIDENTAL TO CONSTRUCTION.
15. SEE TYPICAL RIFFLE CROSS SECTION FOR DIMENSIONS.
BANKFULL
P.T. ELEVATION
BANKFULL WSE EROSION CONTROL MATTING \
KEY MATTING INTO COIR 700 GRAM
PER PROFILE COARSE MATERIAL
8!SEFLOW WSE RIFFLE SLOPEVAR IES PER PROFILE INNER BERM
— — _ P.C. ELEVATION
PER PROFILE
/
SELECT RIFFLE SUBSTRATE • / / /��/////%�/((/ j///%/�/////////
MATERIAL PER NOTESSELECTRI
MATERIAL DEPTH AND GRADATION
STREAMBED
ION
PER NOTES
NATIVE RIFFLE
DETAILED CROSS-SECTION A - A'
NOT TO SCALE
RIFFLE MATERIAL
MINIML IM DEPTH = 2D' OR
25'D,.
NATIVE RIFFLE
DETAILED CROSS-SECTION B - B'
SELECT NATIVE SUBSTRATE
NOT TO SCALE
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BEHIND
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GEO
HIGH DENSI
LIVE STAKII
SILL STRUCTURE
INTO STREAM BANK
MIN. 15.0 FT
i FLOW
WBKF
1BKF jBKF 3BKF
BOULDER CROSS -VANE
DETAILED PLAN
PROPOSED BANKFULL WSE
HEADER
BOULDER FLOW
NON -WOVEN T
GEOTEXTILE /
FOOTER
BOULDER
BOULDER CROSS -VANE
SECTION A - A'
SCOUR POOL
1 BELOW STEP
L-------
/
NOT TO SCALE
O
O
NOT TO SCALE
BOULDER CROSS -VANE
NOTES
1. THE BOULDER CROSS -VANE IS A DESIGN FEATURE USED TO CONTROL GRADE IN HIGH IN GRADIENT REACHES OR
AT CRITICAL JUNCTURES OF THE PROPOSED CHANNEL. THE CROSS -VANE IS ALSO USED TO PROVIDE ENERGY
DISSIPATION, REDUCE NEAR BANK STRESS (NBS), AND CREATE A DIVERSITY OF AQUATIC HABITAT THROUGH
SCOUR OF THE STREAM BED. THE CROSS -VANE IS COMPOSED OF A BOULDER SILL, WHICH IS A ROW OF BOULDERS
SET AT AN ELEVATION PROVIDED IN THE PROPOSED PROFILE THAT SPANS PERPENDICULAR TO AND SLIGHTLY
ARCED ACROSS THE CHANNEL. THE BOULDER SILL EXTENDS APPROXIMATELY 1/3 OF THE CHANNEL WIDTH IN THE
CENTER OF THE CHANNEL. FROM THE EXTENTS OF THE SILL BOULDERS, TWO VANE ARMS EXTEND UP AND
TOWARDS THE STREAM BANK, EVENTUALLY KEYING INTO THE BANK AT AN ELEVATION HIGHER THAN THE SILL
BOULDERS.
2. ALL BOULDERS USED FOR THE OFFSET BOULDER STEP SHALL BE STRUCTURAL STONE, CUBICAL OR RECTANGULAR
IN SHAPE. THE ENGINEER MUST APPROVE THE USE OF BOULDERS THAT MAY BE AVAILABLE ONSITE.
3. DIMENSIONS AND SLOPES OF STRUCTURES DESCRIBED IN THE DETAIL MAY BE ADJUSTED BY DESIGN ENGINEER TO
FIT CONDITIONS ONSITE.
4. CONTRACTOR WILL BE REQUIRED TO FIT BOULDERS TOGETHER TIGHTLY.
5. GAPS BETWEEN BOULDERS SHALL BE MINIMIZED BY FITTING BOULDERS TOGETHER AND PLUGGING WITH NC DOT
CLASS A AND SELECT MATERIAL OR CHINKING STONE APPROVED BY DESIGN ENGINEER, AND LINING WITH FILTER
FABRIC.
6. THERE SHALL BE NO DROP GREATER THAN 0.5 FT OVER A SINGLE STEP. BOULDERS SHALL BE 3 FT X 4 FT X 2 FT +/-
0.5 FT.
7. NON -WOVEN GEOTEXTILE SHALL BE PLACED ON THE UPSTREAM SIDE OF THE STRUCTURE TO PREVENT WASHOUT
OF SEDIMENT THROUGH BOULDER GAPS. FILTER FABRIC SHALL EXTEND FROM THE BOTTOM OF THE FOOTER
BOULDER TO THE FINISHED GRADE ELEVATION AND SHALL BE PLACED THE ENTIRE LENGTH OF THE STRUCTURE.
KEY BOULDERS INTO
STREAM BANK MINIMUM 15.0 FT.
KEY BOULDERS INTO
STREAM BANK @ 1/3 BKF STAGE
PROPOSED BANKFULL WSE
ARM SLOPE = 2 4%
BOULDER CROSS -VANE
CROSS-SECTION
PLACE BOULDERS INTO
STREAMBED A MINIMUM OF THE
BOULDER DIAMETER
NOT TO SCALE
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1 FLOW BOULDER J -HOOK
WBKF NOTES
3BKF 3BKF 3BKF
THE BOULDER J -HOOK IS A DESIGN FEATURE USED TO CONTROL GRADE IN HIGH IN GRADIENT REACHES OR AT
CRITICAL JUNCTURES OF THE PROPOSED CHANNEL.THIS STRUCTURE WILL ALSO ENCOURAGE POOL MAINTENANCE
cam, AND CREATE A DIVERSITY OF AQUATIC HABITAT THROUGH SCOUR OF THE RIVER BED. THE BOULDER J -HOOK IS
SELECT BACKFILL< _ t EXTEND BOULDER SILL INTO COMPOSED
BEHIND STRUCTURE a a � POSED
STREAMBANK MIN 15.0 FT PROFILE THAT SPANS PANS PERPENDIA BOULDER SILL,CULAR TO AND SLIGHTLY ARCED ACROSS THE CHANNEL. ICH IS A ROW OF BOULDERS SET AT AN ELEVATION THE OUOVIDED NDER SITHE LLEXTENDSr` O
>e O O O EXTENDS FROM A BOULDER VANE ARM INTO THE OPPOSITE STREAMBANK. THE BOULDER VANE ARM EXTENDS UP AND
NON -WOVEN __ o TOWARDS THE OUTSIDE STREAM BANK, EVENTUALLY KEYING INTO THE BANK AT AN ELEVATION HIGHER THAN THE SILL
GEOTEXTILE ° 0 BOULDERS.
0 1. ALL BOULDERS USED FOR THE OFFSET BOULDER STEP SHALL BE STRUCTURAL STONE, CUBICAL OR RECTANGULAR
O 0 IN SHAPE. THE ENGINEER MUST APPROVE THE USE OF BOULDERS THAT MAY BE AVAILABLE ONSITE.
0 2. DIMENSIONS AND SLOPES OF STRUCTURES DESCRIBED IN THE DETAIL MAY BE ADJUSTED BY DESIGN ENGINEER TO
HIGH DENSITY o FIT CONDITIONS ONSITE.
LIVE STAKING o 0 " 0 0 3. CONTRACTOR WILL BE REQUIRED TO FIT BOULDERS TOGETHER TIGHTLY.
/ 4. GAPS BETWEEN BOULDERS SHALL BE MINIMIZED BY FITTING BOULDERS TOGETHER AND PLUGGING WITH NC DOT
0 O 0 CLASS A AND SELECT MATERIAL OR CHINKING STONE APPROVED BY DESIGN ENGINEER, AND LINING WITH FILTER
SCOUR FABRIC.
SILL STRUCTURE 0 POOL 5. THERE SHALL BE NO DROP GREATER THAN 0.5 FT OVER A SINGLE STEP. BOULDERS SHALL BE 3 FT X 4 FT X 2 FT
INTO STREAM BANK O O
MIN. 15.0 FT o -HIGH DENSITY 0.5 FT.
o LIVE STAKING 6. NON -WOVEN GEOTEXTILE SHALL BE PLACED ON THE UPSTREAM SIDE OF THE STRUCTURE TO PREVENT WASHOUT
OF SEDIMENT THROUGH BOULDER GAPS. FILTER FABRIC SHALL EXTEND FROM THE BOTTOM OF THE FOOTER
'0 BOULDER TO THE FINISHED GRADE ELEVATION AND SHALL BE PLACED THE ENTIRE LENGTH OF THE STRUCTURE.
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BANKFULL--___­�'
BOULDER J -HOOK NOT TO SCALE
DETAILED PLAN
PROPOSED BANKFULL WSE
HEADER -
BOULDER FLOW
— SCOUR POOL
• / ; BELOW STEP
NON -WOVEN _ �------- ----
GEOTEXTILE /
BFOOTER
OULDER
BOULDER J -HOOK
SECTION A - A'
NOT TO SCALE
KEY BOULDERS INTO
STREAM BANK MINIMUM 15.0 FT.
KEY BOULDERS INTO
STREAM BANK @ 1/3 BKF STAGE
PROPOSED BANKFULL WSE
ARM SLOPE = 2 -4%/
— — — — — — — — — — — — — �—
BOULDER J -HOOK
CROSS-SECTION
PLACE BOULDERS INTO
STREAMBED A MINIMUM OF THE
BOULDER DIAMETER
NOT TO SCALE
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BURY LOGS IN
STREAMBA
MIN. 15.0
BANKFULL
SELECT BACKFIL
BEHIND STRUCTUF
NON-WOVEI\
GEOTEXTILE
BURY LOGS IN
STREAMBAI
MIN. 15.0
HIGH DENSITY—
LIVE STAKING
f FLOW
WBKF
3 BKF 3 BKF 1 3 BKF
LOG J -HOOK WITH BOULDERS
NOTES
rT APS BETWEEN
JDLERS
LOG J -HOOK WITH BOULDERS
DETAILED PLAN
PROPOSED BANKFULL WSE
HEADER
BOULDER
NON -WOVEN
GEOTEXTILE
FOOTER
BOULDER
LOG J -HOOK WITH BOULDERS
SECTION A - A'
1.
THE LOG J -HOOK WITH BOULDERS IS A DESIGN FEATURE USED TO PROVIDE ENERGY DISSIPATION, FLOW
DIRECTION CONTROL AND TO REDUCE NEAR BANK STRESS. THIS STRUCTURE WILL ALSO ENCOURAGE POOL
MAINTENANCE AND CREATE A DIVERSITY OF AQUATIC HABITAT THROUGH SCOUR OF THE RIVER BED. THE LOG
EXTEND BOULDER SILL INTO
J -HOOK WITH BOULDERS IS COMPOSED OF A BOULDER SILL, WHICH IS A ROW OF BOULDERS SET AT AN ELEVATION
STREAMBANK MIN 15.0 FT
PROVIDED IN THE PROPOSED PROFILE THAT SPANS PERPENDICULAR TO AND SLIGHTLY ARCED ACROSS THE
CHANNEL. THE BOULDER SILL EXTENDS EXTENDS FROM A LOG VANE ARM INTO THE OPPOSITE STREAMBANK. THE
LOG VANE ARM EXTENDS UP AND TOWARDS THE OUTSIDE STREAM BANK, EVENTUALLY KEYING INTO THE BANK AT
o
AN ELEVATION HIGHER THAN THE SILL BOULDERS.
2.
ALL BOULDERS USED FOR THE BOULDER SILL SHALL BE STRUCTURAL STONE, CUBICAL OR RECTANGULAR IN
SHAPE. BOULDERS AVAILABLE ONSITE MAY BE USED IF APPROVED BY THE ENGINEER.
°0 3.
DIMENSIONS AND SLOPES OF STRUCTURES DESCRIBED IN THE DETAIL MAY BE ADJUSTED BY DESIGN ENGINEER TO
FIT CONDITIONS ONSITE.
0 0 4.
CONTRACTOR WILL BE REQUIRED TO FIT LOGS AND BOULDERS TOGETHER TIGHTLY. ALL LOGS AND BOULDERS
SHALL BE INSTALLED WITH FOOTERS.
5.
HEADER BOULDERS SHALL HAVE 2.0 FT - 3.0 FT GAPS BETWEEN EACH BOULDER TO MAINTAIN SEDIMENT
TRANSPORT FUNCTIONS AND FISH PASSAGE.
6.
GAPS BETWEEN LOGS AND FOOTER BOULDERS SHALL BE MINIMIZED BY FITTING BOULDERS TOGETHER AND
PLUGGING WITH NC DOT CLASS A, WOODY DEBRIS AND SELECT MATERIAL OR CHINKING STONE APPROVED BY
DESIGN ENGINEER, AND LINING WITH FILTER FABRIC.
7.
THE LOG VANE SHALL EXTEND INTO THE OUTSIDE STREAMBANK AND STREAMBED A MINIMUM OF 15.0 FT ON EACH
END.
8.
THE BOULDER SILL SHALL EXTEND A MINIMUM OF 15.0 FT INTO THE INSIDE STREAM BANK.
9.
BOULDERS SHALL BE 3.0 FT X 4.0 FT X 2.0 FT +/- 0.5 FT. MINIMUM LOG DIAMETER IS 2.0 FT.
10.
NON -WOVEN GEOTEXTILE SHALL BE PLACED ON THE UPSTREAM SIDE OF THE STRUCTURE TO PREVENT WASHOUT
OF SEDIMENT THROUGH FOOTER BOULDER GAPS. FILTER FABRIC SHALL EXTEND FROM THE BOTTOM OF THE
FOOTER BOULDER TO THE FINISHED GRADE ELEVATION AND SHALL BE PLACED THE ENTIRE LENGTH OF THE
STRUCTURE.
-SCOUR POOL
BELOW STEP
NOT TO SCALE
NOT TO SCALE
HEADER LOG
EXTEND LOG INTO STREAMBANK
MINIMUM 15.0 FT.
KEY LOG INTO STREAM BANK @
3 BKF STAGE
PROPOSED BANKFULL WSE
LOG SLOPE = 2
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FOOTER LOG PLACE BOULDERS INTO
STREAMBED A MINIMUM OF THE
BOULDER DIAMETER
LOG J -HOOK WITH BOULDERS
CROSS-SECTION
NOT TO SCALE
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HIGH DENSITY LIVE STAKING
TRANSITION GEOLIFTS
INTO RIVER BANK
BANKFULL STAGE r
r
SOIL GEOLIFTSv
vA � IJV LI
LIVE CUTTINGS BRUSH TOE
PROTECTION
\� v
LAYER OF LIVE
-,\v\ BRANCHES (TYP.)
BANKFULL STAGE
-` /LIFT SETBACK (TYP.)
-fes
TOE WOOD REVETMENT WITH SOIL GEOLIFT
DETAILED PLAN
ANCHOR GEOTEXTILE FABRIC
IN 6" DEEP TRENCH
SOIL BACKFILL (TYP.)_
2" X 2" X 18"
WOOD STAKE (TYP.)
UNDISTURBED GROUND
OR PREVIOUS FILL
EXCAVATION
FILL ALL VOIDS WITH FINE
WOODY DEBRIS AND GRAVEL
LIVE STAKES SPACING = 2.0 FT O.C.
TOE WOOD REVETMENT WITH SOIL GEOLIFT
DETAILED PROFILE - SECTION A - A'
LAYER OF LIVE BRANCHES
AND TOPSOIL (TYP.)
LIFT HEIGHT= 1.0 FT
NOT TO SCALE
o+o
DIAMETER VARIES
(TYP. 1/2' TO 1")
LIVE BRANCH
700 GRAM COIR EROSION
CONTROL MATTING
-SELECT GRAVEL BACK
FILL FOR FIRST SOIL LIFT
COARSE WOODY DEBRIS
APPROX. BASE FLOW WSE
FINE WOODY MATERIAL
NOT TO SCALE
TOE WOOD REVETMENT WITH SOIL GEOLIFT
NOTES
1. COARSE WOODY DEBRIS SHALL CONSIST OF LOGS, ROOTWADS, AND LARGE BRANCHES NOT SUITABLE FOR
CONSTRUCTION OF LOG STRUCTURES. ALL MATERIALS ARE TO BE APPROVED BY THE ENGINEER.
2. COARSE WOODY DEBRIS SHALL BE CONSTRUCTED WITH THE LARGEST MATERIAL PLACED FIRST. NO LOGS
SHALL BE PLACED PARALLEL TO THE FLOW OF WATER, UNLESS DIRECTED BY THE ENGINEER. LOGS SHALL
BE PLACED IN A CROSSING PATTERN OR WEAVE SUCH THAT EACH LOG IS ANCHORED BY ANOTHER LOG.
3. SMALL/FINE WOODY DEBRIS SHALL CONSIST OF MEDIUM TO SMALL LIMBS, BRANCHES, BUSHES, AND/OR
LOGS. INVASIVE SPECIES SHALL NOT BE USED.
4. SMALL/FINE WOODY DEBRIS SHALL BE PLACED ABOVE THE COARSE WOODY DEBRIS WITH THE LARGEST
MATERIAL BEING PLACED FIRST AND THE SMALLEST MATERIAL PLACED LAST.
5. ALL WOODY DEBRIS SHALL BE COMPACTED WITH THE EXCAVATOR BUCKET IN ORDER TO REDUCE THE
PRESENCE OF VOIDS IN THE SMALL/FINE WOODY DEBRIS LAYER.
6. THE HORIZONTAL LOCATIONS OF ALL WOODY DEBRIS ARE LOCATED ON THE PLAN AND PROFILE SHEETS
AND WILL BE PROVIDED TO THE CONTRACTOR AS A 2004 FORMAT DWG FILE AND LN3 FILE. NO LOCATIONS
OF WOODY DEBRIS SHALL VARY FROM THE PLAN LOCATIONS WITHOUT DIRECTION FROM THE ENGINEER.
7. GRAVEL LEVELING BASE SHALL BE INSTALLED ABOVE THE HIGHEST ELEVATION OF THE WOODY DEBRIS
BEFORE THE SOIL LIFTS ARE INSTALLED.
8. THE SOIL BACKFILL USED FOR LIFTS AND TOPSOIL USED FOR LAYERING WITH THE LIVE
BRANCHES SHALL BE FREE OF ANY LARGE ROOTS OR WOODY DEBRIS AND SHALL GENERALLY BE
FREE FROM ANY GRAVEL OR COBBLE MATERIAL.
9. SOIL BACKFILL SHALL BE COMPACTED SUCH THAT FUTURE SETTLING WILL BE KEPT TO A
MINIMUM; YET, NOT SUCH THAT THE UNDERLYING BRUSH IS DISPLACED OR DAMAGED.
10. THE TOP OF THE BACKFILL FOR THE FIRST LIFT SHALL BE SLOPED AT APPROXIMATELY 5% AWAY
FROM THE STREAM.
11. PLACE A LAYER OF TOPSOIL AND LIVE BRANCHES ON TOP OF EACH SOIL LIFT SUCH THAT
APPROXIMATELY 6 INCHES TO 1 FOOT OF EACH LIVE BRANCH WILL BE EXPOSED AND THE
REMAINDER (2' TO 4') OF EACH LIVE BRANCH WILL BE COVERED BY THE NEXT SOIL LIFT.
12. LIVE BRANCHES SHALL BE OF THE SPECIES SPECIFIED FOR LIVE STAKES OR APPROVED BY THE
ENGINEER.
13. PLACE A LAYER OF 6.5 FEET WIDE GEOCOIR DEKOWE 700 EROSION CONTROL BLANKET, OR
EQUIVALENT, ON TOP OF THE TOPSOIL AND LIVE BRANCHES SUCH THAT 2.5 FEET OF THE
BLANKET WILL BE BURIED BELOW THE NEXT SOIL LIFT. ALLOW THE REMAINING 4.5 FEET OF
BLANKET TO HANG OVER THE PRECEDING SOIL LIFT OR COIR FIBER LOGS.
14. PLACE A LAYER OF 6.5 FEET WIDE NON -WOVEN COIR MATTING OVER THE EROSION CONTROL
BLANKET TO THE SAME LIMITS.
15. SOIL CAN BE COMPACTED BY STACKING A PIECE OF 2 X 6 SAWN LUMBER EDGEWAYS UP TO THE
LIFT HEIGHT SPECIFIED IN THE STRUCTURE TABLE AND SECURING WITH WOODEN STAKES TO
PROVIDE A RIGID BACKSTOP FOR COMPACTING SOIL LIFT.
16. PLACE SOIL BACKFILL UP TO THE LIFT HEIGHT SPECIFIED OF NO GREATER THAN 1.0 FT BEING
CAREFUL NOT TO PUSH/PULL OR TEAR THE FABRIC PREVIOUSLY PLACED.
17. THE TOP OF THE SOIL BACKFILL SHALL BE FLAT WITHIN THE LIFT SETBACK DISTANCE SPECIFIED
IN THE STRUCTURE TABLE. BEYOND THE LIFT SETBACK DISTANCE, THE SOIL BACKFILL SHALL BE
SLOPED AT AN APPROXIMATE 5% SLOPE AWAY FROM THE STREAM -
18. TOP DRESS THE SOIL LIFT WITH TOPSOIL FROM THE FACE OF THE SOIL LIFT BACK INTO THE
FLOODPLAIN AT LEAST 4FT.
19. REMOVE THE SAWN LUMBER AND WOODEN STAKES FROM THE FACE OF THE SOIL LIFT AND
WRAP THE FACE AND TOP OF THE SOIL LIFT USING THE WOVEN AND NON -WOVEN COIR MATTING
HANGING OVER THE PREVIOUS LIFT/COIR FIBER LOGS.
20. THE EROSION CONTROL FABRIC SHALL BE PULLED AS TIGHT AS POSSIBLE WITHOUT TEARING OR
EXCESSIVELY DISTORTING THE FABRIC.
21. SECURE THE EROSION CONTROL AND NON -WOVEN MATTING IN PLACE BY STAKING THE END OF
THE EROSION CONTROL FABRIC WITH WOODEN STAKES ON 1.5 -FOOT CENTERS.
22. BEGIN CONSTRUCTION OF THE NEXT SOIL LIFT BY REPEATING THE PREVIOUS NOTES STARTING
WITH NOTE 11.
23. THE OVERALL SLOPE CREATED BY THE LIVE BRUSH LAYERING SHALL MATCH THE PROPOSED
CROSS SECTION SHAPE FOR THE OUTER BANK OF THE THE TYPICAL POOL CROSS-SECTION FOR
EACH REACH.
24. THE COIR BLANKETS AND GEOTEXTILE FABRIC USED FOR THE UPPER MOST SOIL LIFT WILL BE
SECURED WITHIN A 6 INCH DEEP TRENCH AS SHOWN IN DETAIL. TRENCH AS SHOWN IN THE
DETAIL.
25. THE SURFACE OF THIS STRUCTURE SHALL BE FINISHED TO A SMOOTH AND COMPACT SURFACE
IN ACCORDANCE WITH THE LINES, GRADES, AND CROSS-SECTIONS OR ELEVATIONS SHOWN ON
THE DRAWINGS. THE DEGREE OF FINISH FOR ELEVATIONS SHALL BE WITHIN 0.1 FT OF THE
GRADES AND ELEVATIONS INDICATED OR APPROVED BY THE ENGINEER.
26. RE -DRESSING OF CHANNEL AND BANKFULL BENCH/FLOODPLAIN WILL LIKELY BE REQUIRED
FOLLOWING INSTALLATION OF IN -STREAM STRUCTURES AND SHALL BE CONSIDERED INCIDENTAL TO
CONSTRUCTION.
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DETAILED PLAN
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OVERLAP
6" MIN. HORIZONTAL—
OVERLAP
6" MIN. VERTICAL
OVERLAP
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EROSION CONTROL MATTING
DETAILED STAKING PLAN
EROSION CONTROL MATTING
NOTES
1. EROSION CONTROL MATTING IS USED TO PROTECT RECENTLY
A' CONSTRUCTED STREAM BANKS FROM EROSION. THE MATTING WILL
REMAIN INTACT WHILE THE BANK AND RIPARIAN VEGETATION MATURES,
PROVIDING CRITICAL BANK PROTECTION.
2. BEFORE INSTALLING COIR FIBER BLANKET, RAKE SOIL LEVEL AND ADD
SEED, FERTILIZER, LIME AND MULCH.
3. 700 GRAM COIR FIBER EROSION CONTROL MATTING SHALL BE PLACED
ALONG THE LENGTH OF THE NEW CHANNEL FROM THE TOE OF SLOPE
OUT TO A MINIMUM OF 3 FT BEYOND THE BANKFULL ELEVATION.
4. SECURE COIR MATTING IN PLACE BY STAKING AND OVERLAPPING AT
THE SEEMS WITH A SHINGLE -TYPE METHOD SUCH THAT THE
OVERLAPPING PIECE IS IN THE SAME DIRECTION AND AS THE STREAM
FLOW. ADDITIONAL STAKING SHALL BE APPLIED BY THE CONTRACTOR
AT NO ADDITIONAL COST IF THE MATTING SEPARATES FROM THE SOIL
MORE THAN ONE INCH UNDER A REASONABLE PULL.
NOT TO SCALE
SUPPLEMENT WOODEN STAKES
WITH 12" ECO -STAKES
_-700 GRAM COIR FIBER MATTING
2' LONG 2" x 2" WOOD STAKES
w/ 3" GALVANIZED ROOFING NAIL
AT THE TOP TO SECURE MATTING
700 GRAM COIR
MATTING
3'
EARTH
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w/ 3" GALVANIZED ROOFING NAIL
AT THE TOP TO SECURE MATTING
NOT TO SCALE EROSION CONTROL MATTING
DETAILED CROSS-SECTION A - A'
NOT TO SCALE
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