20181589 Ver 2_401 Application_20190611

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C1earWater Environmental Consultants, Inc.
June 10, 2019 wvvw.cwenv.com
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Ms. Amanda Jones Ms. Karen Higgins V'
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US Army Corps of Engineers NC Division of Water Resources v
Asheville Regulatory Field Office 401 Permitting & Buffer Unit
151 Patton Avenue, Room 208 512 N. Salisbury Street, 9`h Floor
Asheville, North Carolina 28801-2638 Raleigh, North Carolina 27604 $ PAID
RE: Biltmore French Broad River and Swannanoa River Bank Stabilization
Nationwide Permit 13 Permit Modification Request
Water Quality Certification 4134
Buncombe County, North Carolina
Dear Ms. Jones and Ms. Higgins,
The attached Pre -Construction Notification (PCN) modification is being submitted on behalf of
The Biltmore Company represented by Mr. Parker Andes. The project site is a +/- 2,485 acre
parcel with a physical address of 1 Lodge Street, Asheville, North Carolina (35.56685, -
82.546343). The applicant was issued a Nationwide Permit 13 on May 17, 2019 for bank
stabilization in four locations on the French Broad river and three locations on the Swannanoa
River to prevent loss of property and for an emergency portage location for recreational water
craft on the French Broad River. Approval of a 401 Water Quality Certification (GC 4134) was
issued on February 8, 2019. It will be necessary to cross the Swannanoa River in order to access
one of the permitted bank stabilization sites (Impact S9). The applicant is requesting a
modification to the permit to include a new impact consisting of 30' of temporary stream bank
impacts and construction access (Impact S 11) for the addition of a new access point from the
right bank of the Swannanoa River. A revised plan sheet indicating the location of the proposed
stream crossing is included in Attachment A (Sheet 8 of 12).
Copies of this package have been sent to Zan Price of the Division of Water Resources Asheville
Regional Office, Ms. Andrea Leslie of the NC Wildlife Resources Commission and Mr. Byron
Hamstead of the US Fish and Wildlife Service.
Please do not hesitate to contact me at 828-698-9800 if you have any questions or comments.
Sincerely,
Alea Tuttle, P.W.S.
Biologist
Copy Furnished:
NC Division of Water Resources — Zan Price
NC Wildlife Resources Commission — Andrea Leslie
US Fish and Wildlife Resource Commission — Byron Hamstead
32 Clayton Street
Asheville, NC 28801
828-698-9800 Tel
/ 61f'114W
R. Clement Riddle, P.W.S
Principal

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=il ACCESS ACROSS THE RIVER BED IS NEEDED IN
ORDER FOR EQUIPMENT TO REACH THE BASE III I U I ¢ Z
OF THE NEAR -VERTICAL LEFT BANK. Z O
MATERIALS WILL BE DELIVERED FROM WINERY ow
ROAD ON THE LEFT BANK IN ORDER TO LIMIT
1 DISTURBANCE TO THE RIVER BED. UPON w
COMPLETION OF IN -STREAM WORK, THE RIGHT
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" BANK WILL BE RESTORED TO IT'S PRE -PROJECT Q °°
GRADES AND DISTURBED SOILS WILL BE
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SEEDED AND COVERED WITH EROSION
CONTROL MATTING IN ACCORDANCE WITH THE
DETAILS ON SHEETS 11 AND 12.
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Impact S 11 (30 LF) ACCESS FROM
RIGHT BANK O o
REMOVE STUMP BUT ACROSS RIVER ?J v o a
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DATE: JUNE 2019
SCALE: AS SHOWN
LEGEND
PLAN
GEOLIFTS 0 60' 120' 180' SWANNANOA
SHEET 8 OF 12

6" DIVERSION BERM
AT TOP OF BANK
1.75"
1"
1.5" TOP OF BANK
BRUSH MATTRESS STAKE 7 1— MIN.
SEE DETAIL 2/10
LIVE CUTTINGS; SEE NOTE 5.
EROSION CONTROL MATTING
BOULDER TOE, MIN. 2'
BRUSH MATTRESS STAKE MEDIAN AXIS BOULDERS
6, 17 BASE FLOW
�__RIVERBED
SECTION
2' MIN
NATURAL FIBER TWI
TOP OF MATT
TOE OF BAN
BOULDER TOED PLAN
NOTES:
T TYP
T TYP
LIVE CUTTINGS, SLIGHT
CRISS-CROSS
PATTERN, MIN. 15 STEMS
PER SQUARE YARD
1. PLACE CUTTINGS ON FACE OF GRADED BANK, WITH BUTT ENDS REACHING
TO BASE FLOW WATER SURFACE.
2. DRIVE STAKES HALFWAY INTO BANK BETWEEN CUTTINGS. WRAP TWINE
AROUND STAKES AND OVER CUTTINGS TIGHTLY. DRIVE STAKES FURTHER
TO TIGHTEN TWINE AND SECURE CUTTINGS TO SLOPE.
3. FILL VOIDS BETWEEN CUTTINGS WITH LOOSE TOPSOIL. SEED AND MULCH
THE SURFACE.
4. INSTALL EROSION CONTROL MATTING OVER TOPSOIL, USING 18" LONG
MATTING STAKES.
5. PLACE BOULDER TOE OVER END OF MATTRESS AND MATTING.
6. LIVE CUTTINGS SHALL BE DORMANT AT THE TIME OF INSTALLATION AND
SHALL INCLUDE AT LEAST 3 OF THE FOLLOWING SPECIES: SILKY WILLOW,
SIKLY DOGWOOD, NINEBARK, ELDERBERRY, BLACK WILLOW.
rl_' BRUSH MATTRESS
10 NTS
REMOVE ALL DEBRIS,
SCARIFY SURFACE, PLACE
TOPSOIL AND SEED/MULCH
BEFORE PLACING MATTING
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MATTING PLACED FLUSH WITH BANK SURFACE, LAP 0 ft�
OVER DOWN STREAM / DOWN SLOPE SEAMS w
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12" WOOD STAKE PLACED IN Q m 0
F 3'0.C. DIAMOND PATTERN t
LIVE STAKE, 3' O.C.
STREAM BED
SECTION
NOTES:
1. MATTING SHALL BE COIR FIBER, 780 G/Mz WITH
NOMINAL 0.50 INCH OPENING SIZE.
2. SEE SHEET 11 FOR SEED MIXES.
3. LIVE STAKES SHALL BE DORMANT AT TIME OF
INSTALLATION. SPECIES SHALL INCLUDE AT
LEAST 3 OF THE FOLLOWING: SILKY DOGWOOD,
SILKY WILLOW, NINEBARK, ELDERBERRY, BLACK
WILLOW
is
ml.
WOOD STAKE
TOP CUT AT 15°
AFTER INSTALL
BUDS POINTED
UPWARD, MIN. 3 BUDS
ABOVE AND BELOW
GRADE AFTER INSTALL
24" MIN.
1/2" TO 2"
BASE CUT
AT 45°
LIVE STAKE DETAIL
EROSION CONTROL MATTING/LIVE STAKES
NTS
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DATE: OCT.2018
SCALE: AS SHOWN
DETAILS
SHEET 10 OF 11

ROAD/DRIVEWAY
R=20'
12' MIN..
STEEL T -POST
FILTER FABRIC
WITH WIRE BACKING
COMPACTED BACKFILL
RUNOFF
8"
4"
ROAD/DRIVEWAY
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1. CONSTRUCTION ENTRANCE TO BE USED ATa >
9" MIN. THICKNESS LOCATIONS WHERE OFF-ROAD TRUCKS AND W
CLASS A STONE EQUIPMENT LEAVE DISTURBED AREAS AND U
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ENTER PAVED ROADS.
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2. LOCATIONS TO BE DETERMINED DURING Q m U
CONSTRUCTION. ,
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' S0' MIN. BIAXIAL GEOGRID
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1 1 CONSTRUCTION ENTRANCE/EXIT
---1 11 NTS
SECTION
NOTES:
1. SILT FENCE SHALL BE PLACED ON STREAM
SIDE OF ALL STOCKPILES.
2. SILT FENCE SHALL BE REMOVED UPON
COMPLETION OF EARTHWORK.
8' MAX.
CREEK
SIDE STEEL T -POST
T—
— 18" MIN.
24" MIN.
L FILTER FABRIC WITH
PROFILE WIRE BACKING
2 SILT FENCE
11 NTS
Permanent Seed Mix * - 30 Ib/acre
Mulching: wheat or oat straw mulch applied at 1 bale/1,000 square feet
Common Name
Scientific Name
Percentage
Deer Tongue
Panicum clandestinum
20
Big Bluestem
Andropogon gerardii
20
Virginia Wildrye
Elymus virginicus
20
Indiangrass
Sorghastrum nutans
20
Switchgrass
Panicum virgatum
20
* USE TURF TYPE TALL FESCUE BLEND TO SEED DISTURBED
AREAS IN LAWNS BEYOND STREAM GRADING LIMITS.
Temporary Seed Mix
Application Dates
Common Name
Scientific Name
Rate (Ib/acre)
Applied
Rate (Ib/acre) Applied
N
Separately
w/ permanent Mix
August 15 to May 1
Rye Grain
Secale cereale
120
60
May 1 to August 15
Browntop Millet
Panicum ramosum
40
20
r3 SEED MIXES
11
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DTE: OCT. 2018
SCALE: AS SHOWN
DETAILS
SHEET 11 OF 11
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DTE: OCT. 2018
SCALE: AS SHOWN
DETAILS
SHEET 11 OF 11