20131030 Ver 1_401 Application_20130913

Blue Ridge Resource
Conservation & Development Council, Inc.
2 0 13 1 0 3 0
September 20, 2013
Jennifer Burdette
NCDWQ
401 /Buffer Coordinator
1650 Mail Service Center
Raleigh, NC 27699 -1650
Subject: Rockhouse Creek Streambank Stabilization Project — 401 Water Quality Certification
Mitchell County, North Carolina
Dear Ms. Burdette,
The Catena Group, Inc. ( Catena) has been retained by the Blue Ridge Resource Conservation and
Development Council (BRRCD) to assist in acquiring the necessary environmental permits for the subject
streambank stabilization project in Mitchell County, NC. The project is part of the North Toe River
Restoration Project, which identifies and addresses sources of water quality problems within the North
Toe River watershed. The project will be funded by grants from the US Environmental Protection Agency
(EPA) and the US Fish and Wildlife Service (USFWS).
The proposed section of Rockhouse Creek recommended for streambank stabilization is located on a 1.7
acre parcel at 12462 NC 226 in Spruce Pine, North Carolina (Mitchell County PIN 0799 -03 -21- 9781). The
confluence of Rockhouse Creek with Grassy Creek is approximately 400 feet northwest of the project
area. Grassy Creek then proceeds in a northwest direction for another 1.6 miles before its confluence
with the North Toe River. The North Toe River is currently listed on the NCDWQ's 2012 303(d) list due
to turbidity. The project is located in the French Broad River Basin.
The purpose of this project is to stabilize and reshape approximately 115 feet of the eastern bank of
Rockhouse Creek which is experiencing significant erosion. Approximately 50 cubic yards of soil will be
excavated from the eastern bank to form a 2:1 slope. Two rock cross vanes will be installed in the
stream to help protect and stabilize the newly graded bank. All disturbed areas will be revegetated
according to Specifications set by the NC Department of Agriculture and Consumer Services (see
attached plan sheets).
Please find enclosed five copies of the completed PCN form and attachments necessary for a Nationwide
Permit #27 and 401 Water Quality Certification to authorize this stream restoration. We are very
appreciative of your time and assistance with this matter. If you have any questions, please contact Ivy
Kimbrough with Catena at (919) 732 -1300 or ikimbrough @thecatenagroup.com.
Sincerely,
SEp
Jonathan Hartsell 2 3 2013
Executive Director W i — #AA. !

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20 13 103 0
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre - Construction Notification (PCN) Form
A. Applicant Information
1. Processing
1 a. Type(s) of approval sought from the
Corps:
®Section 404 Permit ❑Section 10 Permit
1b. Specify Nationwide Permit (NWP) number: 27 or General Permit (GP) number:
1c. Has the NWP or GP number been verified by the Corps?
❑ Yes ❑ 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
le. Is this notification solely for the record
because written approval is not required?
For the record only for DWQ 401
Certification:
❑ Yes ® No
For the record only for Corps Permit:
❑ Yes ® 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 ® No
1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1h
below.
❑ Yes ® No
1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes ® No
2. Project Information
2a. Name of project:
Rockhouse Creek Streambank Stabilization Project
2b. County:
Mitchell
2c. Nearest municipality / town:
Spruce Pine
2d. Subdivision name:
n/a 2 3
2e. NCDOT only, T.I.P. or state
project no:
n/a "WALTAR , �q
3. Owner Information
3a. Name(s) on Recorded Deed:
Rock House Creek Properties, LLC
3b. Deed Book and Page No.
260!196
3c. Responsible Party (for LLC if
applicable):
Blue Ridge Resource and Conservation and Development Council, Inc.
3d. Street address:
26 Crimson Laurel Circle, Suite 2
3e. City, state, zip:
Bakersville, NC 28705
3f. Telephone no.:
(828) 385 -0912
3g. Fax no.:
3h. Email address:
[e-mail]
Page 1 of 11
PCN Form — Version 1.3 December 10, 2008 Version

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. AgenVConsultant Information (if applicable)
5a. Name:
Michael Wood
5b. Business name
(if applicable):
The Catena Group, Inc.
5c. Street address:
410B Millstone Drive
5d. City, state, zip:
Hillsborough, NC 27278
5e. Telephone no.:
(919) 732 -1300
5f. Fax no.:
(919) 732 -1303
5g. Email address:
mwood @thecatenagroup.com
Page 2 of 11

B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID):
0799 -03 -21 -9781
1 b. Site coordinates (in decimal degrees):
Latitude: 35.88696 Longitude: - - 82.06183
(DD.DDDDDD) (- DD.DDDDDD)
1c. Property size:
1.7 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to
Rockhouse Creek
proposed project:
2b. Water Quality Classification of nearest receiving water:
C; Tr
2c. River basin: map is available at
French Broad
http: //h2o.enr.state.nc.us /admin/maps/
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:
The site consists of an approximate 115 -foot section of Rockhouse Creek located between Old NC 226 and NC 226. The
stream has a bankfull width of 21.8 feet and a bankfull depth of 1.1 feet. The stream flows northwest and the box culverts
under each road form the northern and southern boundary of the project area. Parking lots for local businesses are
located approximately 20 to 30 feet from each bank. The eastern bank is experiencing significant erosion. A utility pole is
located at the top of the eastern bank.
3b. List the total estimated acreage of all existing wetlands on the property:
0
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
115
3d. Explain the purpose of the proposed project:
To improve water quality for Grassy Creek and the North Toe Watershed by reshaping and stabilizing the eastern bank of
this section of Rockhouse Creek.
3e. Describe the overall project in detail, including the type of equipment to be used:
The project will utilize an excavator which will be located on top of the stream bank. The eastern bank will be excavated
and reshaped to a slope of 2:1 (approximately 50 cubic yards). A riparian zone will be established using a native
vegetation mix, which has been approved by USFWS. Two rock cross vanes will be installed in the stream to protect the
newly graded bank. Each cross vane will require approximately 20 tons of stone.
Page 3 of 11
PCN Form — Version 1.3 December 10, 2008 Version

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 prior phases) in the past?
Comments:
❑ Yes ® No ❑ Unknown
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 ® No ❑ Unknown
5b. If yes, explain in detail according to "help file" instructions.
6. Future Project Plans
6a. Is this a phased project?
❑ Yes ® No
6b. If yes, explain.
Page 4 of 11

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.
2b.
2c.
2d.
2e.
2f.
Wetland impact
Type of jurisdiction
number —
Type of impact
Type of wetland
Forested
(Corps - 404, 10
Area of impact
Permanent (P) or
(if known)
DWQ — non -404, other)
(acres)
Temporary
W1 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W2 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
W3 ❑ P [IT
❑ Yes
❑ Corps
❑ No
❑ DWQ
W4 ❑ P [IT
❑ Yes
❑ Corps
❑ No
❑ DWQ
W5 ❑ P ❑ T
0 FORMTEXT
❑ Yes
❑ No
❑ Corps
❑ DWQ
W6 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
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.
3b.
3c.
3d.
3e.
3f.
3g.
Stream impact
Type of impact
Stream name
Perennial
Type of jurisdiction
Average
Impact
number -
(PER) or
(Corps - 404, 10
stream
length
Permanent (P) or
intermittent
DWQ — non -404,
width
(linear feet)
Temporary (T)
(INT)?
other)
(feet)
S1 ®P ®T
Bank stabilization
Rockhouse Creek
® PER
❑ INT
® Corps
® DWQ
21.8
110
S2 ®P ®T
Fill (2 rock cross
vanes)
Rockhouse Creek
® PER
❑ INT
® Corps
® DWQ
21.8
36ft long x
2ft tall x
4ft wide
S3 ❑ P ❑ T
❑ PER
❑ Corps
❑ INT
❑ DWQ
S4 ❑ P ❑ T
❑ PER
❑ Corps
❑ INT
❑ DWQ
S5 ❑ P ❑ T
❑ PER
❑ Corps
❑ INT
❑ DWQ
S6 ❑ P ❑ T
❑ PER
❑ Corps
❑ INT
❑ DWQ
3h. Total stream and tributary impacts
110
31. Comments:
Page 5 of 11

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.
4b.
4c.
4d.
4e.
Open water
Name of waterbody
impact number —
(if applicable)
Type of impact
Waterbody type
Area of impact (acres)
Permanent (P) or
Temporary
01 ❑P
02 ❑P
03 ❑P
04 ❑P
0. Total open water Impacts
4g. Comments:
S. Pond or Lake Construction
If pond or lake construction proposed, then complete the chart below.
5a.
5b.
5c.
5d.
5e.
Wetland Impacts (acres)
Stream Impacts (feet)
Upland
Pond ID
Proposed use or purpose
(acres)
number
of pond
Flooded
Filled
Excavated
Flooded
Filled
Excavated
Flooded
P1
P2
6f. Total
5g. Comments:
5h. Is a dam high hazard permit required?
❑ 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.
❑ Neuse ❑ Tar - Pamlico ❑ Other:
Project is in which protected basin?
❑ Catawba ❑ Randleman
6b.
6c.
6d.
6e.
6f.
6g.
Buffer impact
number —
Reason
Buffer
Zone 1 impact
Zone 2 impact
Permanent (P) or
for
Stream name
mitigation
(square feet)
(square feet)
Temporary
impact
required?
61 ❑P [IT
El Yes
❑ No
B2 ❑P [IT
❑Yes
❑ No
B3 ❑P [IT
❑Yes
❑ No
6h. Total buffer Impacts
6i. Comments:
Page 6 of 11

D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The purpose of this project is to reduce the amount of erosion that is occurring on the eastern bank of Rockhouse Creek.
b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Construction equipment will be operating from the top of the streambank, not from the water or on the banks. A coconut
coir log will be staked at the water's edge for sediment control.
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 ® 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
Quantity
3c. Comments:
4. Complete if Making a Payment to In -Ileu 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:
❑ warm ❑ cool []cold
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:
Page 7 of 11
PCN Form — Version 1.3 December 10, 2008 Version

6. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
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? If you will have to fill out this entire form — please
contact the State for more information.
❑ Yes ❑ 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 8 of 11

E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
la. Does the project include or is it adjacent to protected riparian buffers identified
❑ Yes ® 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
Comments:
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project?
n/a %
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 involves streambank
stabilization and will not require a stormwater management plan.
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
❑ Certified Local Government
2e. Who will be responsible for the review of the Stormwater Management Plan?
❑ DWQ Stormwater Program
❑ DWQ 401 Unit
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project?
❑ 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 9 of 11
PCN Form — Version 1.3 December 10, 2008 Version

F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1a. 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 ® 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
❑ Yes ❑ No
letter.)
Comments: N/A
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 ® No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an after -the -fact permit application?
❑ Yes ® 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 ® 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 will not result in any 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.
N/A
Page 10 of 11
PCN Form —Version 1.3 December 10, 2008 Version

. , ,
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 ❑ No
impacts?
❑ Raleigh
5c. If yes, indicate the USFWS Field Office you have contacted.
® Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
NHP, USFWS, Field Surveys
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat?
❑ Yes ® No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
NMFS County Index
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 ® 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?
NCSHPO GIS Data
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA- designated 100 -year floodplain? JOYes
❑ No
8b. If yes, explain how project meets FEMA requirements: The width of the flood -prone area is being increased from 28.7 feet
to 32.1 feet.
8c. What source(s) did you use to make the floodplain determination? FEMA maps
Jonathan Hartsell
Executive Director
919/2013
ApplicanUAgent's Printed Name
Date
Applicant/Agent's Signature
(Agent's signature is valid only if an authorization letter from the applicant
is provid ed.
Page 11 of 11

STATE OF NORTH CAROLINA STREAMBANK STABILIZATION N PROJECT
-
1 OEPRRTMENT OF gORX:ULTURE- CONSUMER SERVICES
_ WSIONOFSgLAND- CONSERVMWN ROCKHOUSE CREEK - WISEMAN PROPERTY
WESTERN HEROOUgRTERS
.
_
,� Ia�m eercear MITCHELL COUNTY, NORTH CAROLINA
cE n

rvri� . Uj
'L
STATE OF NORTH CAROLINA a sloes
STREAMBANK STABILIZATON PROJECT
EPA-- TURE- CONSUMERSERVICES NOVERe[R S' III
_ WSIONOFSO-DWATERCONSER nA ROCKHOUSE CREEK - WISEMAN PROPERTY
WESTERN HEADQUARTERS
MITCHELL COUNTY, NORTH CAROLINA E ,�,,,�

EXCAVATE SOIL
TO FORM 2:1
SLOPE (50 DD yd)
BANKFULL 25.0' SETBACK
STAGE @ 3.7' I�
EL = 2,588.3' I � -- "- - �'- - - - --
EROSION
32.1 CONTROL
21.8' �( BLANKET
2 1' LIVESTAKES
3' X T SPACING
(120 stems)
STREAM CHANNEL CROSS — SECTION @ STA 0 +63
Stream:
Rockhouse Creek
Basin:
French Broad River
Drainage Area:
1,197 acres (1.87 square miles)
Location:
Mitchell County, North Carolina
Latitude:
N 35' 53'13.07"
Longitude:
W 82' 03'42.57"
Date:
November 6, 2012
Valley Type:
VIII
Bankfu" Width (Wbkt):
21.8 feet
Bankfull Depth (Dbkf):
1.1 feet
Bankfull X- Section Area (Abkf):
23.9 square het
Width /Depth Ratio (Wbkf /Dbkf):
19.8
Maximum Depth (Dmax):
2.1 feet
Width of Flood -Prone Area (Wfpa):
28.7 feet
Entrenchment Ratio (ER):
1.2
Channel Materials (D50):
14 mm
Water Surface Slope (5):
0.017 feet/feet
Channel Sinuosity (k):
1.05
STREAM CHANNEL CLASSIFICATION:
F4
UAIA
Stream:
Rockhouse Creek
Basin:
French Broad River
Drainage Area:
1,197 acres (1.97 square miles)
Location:
Mitchell County, North Carolina
Latitude:
N 35' 53' 13.0T'
Longitude:
W 82' 03'42.57"
Date:
November 6, 2012
Valley Type:
VIII
Bankfull Width(Wbkf):
21.8 feet
Bankfull Depth (DbkQ:
1.1 feet
Bankfull X- Section Area (Abkf):
23.9 square feet
W'Idth /Depth Ratio (Wbkf/Dbkf):
19.8
Maximum Depth (Dmax):
2.1 feet
Width of Flood -Prone Area (Wfpa):
32.1 feet
Entrenchment Ratio (ER):
1.5
Channel Materials (D50):
14 mm
Water Surface Slope (S):
0.017 feet /feet
Channel Sinuosity (k):
1.05
STREAM CHANNEL CLASSIFICATION: B4
STATE OF NORTH CAROLINA STREAMBANK STABILIZATON PROJECT aUE
Y DEPARTMENT OF AGRICULTURE AND CONSUMER SERVICES NrniNeeR0.mtz
DMSIONOFSOILANDWATERCCNSERVATION ROCKHOUSE CREEK — CROSS SECTION
WESTERN HEADDUARrERS
mxl aer�r MITCHELL COUNTY, NORTH CAROLINA

NOTES:
REQUIRED STONE SIZE FOR VANE CONSTRUCTION SHALL BE A
MINIMUM OF 24 INCHES. THE SIZE OF AN INDIVIDUAL STONE SHALL
BE DETERMINED BY MEASURING ITS INTERMEDIATE AXIS.
STONE MAY CONSIST OF FIELD STONE OR UNHEWN QUARRY
STONE.
BROKEN CONCRETE FROM DEMOLISHED STRUCTURES OR
PAVEMENT MAY NOT BE USED.
WHILE NO SPECIFIC GRADATION IS REQUIRED, VARIOUS SIZES OF
STONE SHALL BE DISTRIBUTED BEYOND THE REQUIRED MINIMUM
SIZE. COMPLETED VANE SHALL BE FREE OF VOIDS LARGER THAN 6
INCHES IN DIAMETER. USE OF CLASS A RIP RAP MAY BE
NECESSARY TO FILL VOID SPACES.
ROCK CROSS VANE
Top of Bank (Bankfull) 1/2 Bankfull
Water
u W N Surface
Flow _ r.�yoZDD .
�V
Thalweg
Excavated
Nonwoven Scour
Geotextile PROFILE VIEW Pool
Right Edge
of Water
20 Degrees
+
w
,I
r,
36'
1 1
f�
N,
Left Edge
of Water
Top of Bank
Footer Rods
W
V/ y
� W W v
Pool
\ W
W NY
W
APPROXIMATELY 20 TONS
OF 24" STONE REQUIRED
PER ROCK CROSS VANE
a+
Rock
Sin
PLAN VIEW
fury Zs, �0
STATE OF NORTH CAROLINA STREAMBANK STABILIZATION PROJECT RE SNNS R.
DEPARRAENT OF AGRICULTURE AND CONSUMER SERVICES �" NOV[Nffve' mix
WSIONOFS LANDWATERCONSER —ON ROCK CROSS VANE DETAIL SHEET
e _1 _ _ R_ WESTERN HEADQUARTERS
eTCraR rc tern '- -- - MITCHELL COUNTY, NORTH CAROLINA

NOTE: ALL DISTURBED AREAS RESULTING FROM THIS PROJECT,
INCLUDING ACCESS AND HAUL ROADS, SHALL BE VEGETATED
ACCORDING TO THE SPECIFICATIONS LISTED ABOVE. TOTAL NUMBER OF
LIVESTAKES REQUIRED FOR THIS PROJECT IS ESTIMATED AT 120.
Z150" �3
STATE OF NORTH CAROLINA STREAMBANK STABILIZATION PROJECT Ell,
Y DEPARTMENT OF AGRICULTURE AND CONSUMER SERVMES
— l0NOFSOILANOWATERCONSERVATION SEEDING & MULCHING DETAILS er
WESTERN HEADOUARTERS cNEGxEOBV:
P,ro,E, 1e2m eerie+ MITCHELL COUNTY, NORTH CAROLINA
SLOPE INSTALLATION
MATERIAL SPECIFICATION
ALL SLOPES GREATER THAN 2:1 SHALL BE SEEDED WITH HYDROSEEDING EQUIPMENT. STEEP
SLOPES SHALL HAVE SCARIFIED SURFACES WITH TRENCHES 1-2 INCHES DEEP AND 6.12 INCHES
Erosion control blanket shall be a machine - produced 100% biodegradable mat MM an
APART ACROSS THE SLOPE IN WHICH THE SEED CAN LODGE AND GERMINATE.
agricultural straw Rber matrix. The blanket shag be of consistent Mickrmess wit
PLANTING MIXTURE
NORTH
the straw evenly distributed over the entire area of Me mat. The blanket shall be
botto sides with 100% biodegradable en natural fiber skiing.
cored on the lop and m wov
ve
AMERICAN
The netting shag consist of maehine directin -I strands formed from two iri -Mned
Tag Fescue: 40-60 pountla / acre
GREEN
yams with cross directional strenda interwoven Mmugh Me twisted machine stands
Amu el Rye: 25-30 pounds / acre
(commonly refered to as a Lane weave) to form an approximate 0.50 incn x 1.00 hrh
(1.27 x 254 cm) mesh. The blanket shall be sewn on 1.50 imcn (3.81 an) centers
LIME AND FERTILIZER"
De Nat
(50 etudes per roll width) with biodegradable thread. The blanket shall manufactured
t l
wit a colored line or thread stitched along both outer etlges (approximately 25 inches
Lime: 2.000 pounds / acre of finely ground, dolomitic limestone
1Nw.,isNe)
[5 -12.5 cm] Rom Me edge) to ensure proper material — rapping.
FeNli2er. 400 pounds /am of 10 -10-10 or equivalent
DS �
The strew emslon control blanket shall be 5150 BN ss manufactured by North American
"These mates also apply when hydroxedhg
(ts ®
Green, or equivalent. The blanket shag have Me blowing properties:
MULCHING
Material Content
All slopes greater than 2:1 OR below top of bank (steam channels) shall be mulched with an erosion control
Matrix 100% Straw Fiber (0.50 lbsfyd2) (027 kWm2)
blanket (North American Green SC -1508 or equivalent). Blankets shag be anchored In accordance win
manufacturers specifications
Netting Both sides, Lane woven 100% biodegradable organi jute her
(9.30 Ibs /1,000 ft2 14.50 kg /100 m21 approximate weight)
Flatter surfaces may be mulched w dry, unchopped, umveatheraid wag grain straw or hay free of seeds of
competing plants. Spread at Me rate of 1 -2 tons per acre depending upon Me season. Evemly spread mulch over
Q
Thread Biodegradable
the area by hand or mechanical equipment. Apply mulch un1hrmly so hat 25% of Me grourM surface is Viamle.
Physical Specifications (par roll)
RECOMMENDED NAT— PLANT SPECIES FOR PoPAMN AREA
Width 6.67 It
TREES SMALL TREES /SHRUBS
Length 108.00 It
yellow Buckeye Tag Alder
Cnany "" S—osa ry
Weight 53.50 goes
Rivas Birch Red Cholkabany
BkMmul Hkkory Common Pawpaw
1. � 0th I�ND 9LAN S gtOLue1N0 Aar 1111E FSIIIElmI. 1YD 9FID.
Area 80.00 yd2
Snegbark Hkkwy Swaetahmb
ers1— Ironwood
Ash Agemate
Np11 TN11 Il9i mL -O ®0p 1Af YID FREPMfD MG s® IrUSr E FIifAYm INM IM4R 9DE ppMN.
2. gE1N AT M l0I a 111PE II AN 110 THE —ldD IN A a• (txm) pEEP x a• (liar,) 111[ TIE/1DH
Stitch Spacing 1.50 inches
Green Leaf Dogwoo0
Sllvarbel Silky DoB'wooe
NMI APIEOOMIlLT li a RANItEr EIfIDAm t 1p1D TM w -sIOPE Pd- dF TE A1CL NMI TE
SUH2IIT 61M A n0I A NES APPRO %IWl¢y t1• ((JN� )APART IN 111E 9pr04 0< 1NF 11EMtll
Bleckgum Hkae
IETEEL NO 001011IE.T M MIER STAPLING. —1 4LD YD COMPAC1m SOIL A11 FOLD IEM1M10 12' ]Dam)
T 4dL IIIM A NOi pi
sYCamare WgdMazal
SfMIQ/Ipm !Km MIP4LOELY �1• (]ream) — THE NOmET " HE
Black C., Wrnler Ben,
BebyJlllox DopMDNa
}, 1111 M INIg66T� 11EN OR �) IwrizpNUUY sca055 THE S11IPE. BtM1KE3 11X1 urR011 111TH APPRDPIINIE soE
White BesawoPe spicatush
AON161 AE IgE 61MRCC All IDIIYElS NUS'! E SECUItELT FASTENED ro SOIL SWFACE Tfr RN. NC srIPLE4/ST
M ozm 1111116 Af b11M N 1NE STALE PATTERN 6MDE wHEN IAINO OPRJHIL DOT SY51EkI`. 3T ES
Mele-0arry
SHNA/ K FIA6D Tllld1g11 4101 R THE CIX1Rm DD15 CpMESP1TNDIlIO ro THE APPROPIAATE STAPLE P TRRN.
usel,n a Tea
4. THE oafs a 1111W IINMflS al SE STAPLID WITH N4ROw,MTELy z• -5' xm -12.xm dYE— DOsENDNO
pN t"LeadET TYPE 1p Dial P110Pf11 SEW Al1pNYdl, PLACE THE EOOE of D.EAtAEPI —ET (M.111xET eF1Np
HirebeM1
N6T— da Ton MN vireo E Cg111ED SENT STITC,!'ON THE PRMd14LY 1H6fN1FD BLWNET.
cone A2alea
Swamp A2elaa
S. W1IECVIM) 6AN61s --low — THE srnPE Nusr eE wcm ENp am ENp (sKNKAE smq m+ml AN APPaoxIwTE
Sw m Ross
BI.HIIOIaT Ya DAIIM. STAPLE ROUDHI OYEIAPPED AsEA, AP PRWI1M1Fly ,2• (JOarn) APART AC0.p55 ENTIRE
K
Sl mils-
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���nnnnn
CAR
swe sal
,r����N z coo
2O F5SIO1,` /9'Ii
el STAPLE OR tinsel LENmH6 seaD ER —1 i' (lxm) MAT SEE NECESYFV TO
rPRO FItLT g(.1REL MM B µKEfS
tr _YY
ALL SMALL TREES /SHRUGS SHALL BE SPACING OF THE ENTIRE AREA FROMORROOLLSTAGE
ESTABLISHED D VEGETATION.
TO TOP OF STRBAM BANK SHALL BE ESTABLISHED WITH WOODY ITHI h CHEU- SOIL WE STAKES ORNSEWA
P1ANT5 SHALL PLACED ON THE PoP -RAP BENCH. CONSULT WRH MITCHELL BOIL A!A WATER CONSERVATION
B
Ot
DISTRICT PERSONNEL FOR ADORIONAL GUIDANCE
14511 HKAHNAY 41 NORTH, EV1"0' 1 E. INOPNA 47725
IIBA 1- SOD- T/2- 2aDa10� -eem - 000 -41I -2010
NOTE: ALL DISTURBED AREAS RESULTING FROM THIS PROJECT,
INCLUDING ACCESS AND HAUL ROADS, SHALL BE VEGETATED
ACCORDING TO THE SPECIFICATIONS LISTED ABOVE. TOTAL NUMBER OF
LIVESTAKES REQUIRED FOR THIS PROJECT IS ESTIMATED AT 120.
Z150" �3
STATE OF NORTH CAROLINA STREAMBANK STABILIZATION PROJECT Ell,
Y DEPARTMENT OF AGRICULTURE AND CONSUMER SERVMES
— l0NOFSOILANOWATERCONSERVATION SEEDING & MULCHING DETAILS er
WESTERN HEADOUARTERS cNEGxEOBV:
P,ro,E, 1e2m eerie+ MITCHELL COUNTY, NORTH CAROLINA