20090074 Ver 1_More Info Received_20110418

Strickland, Bev
From: Homewood, Sue
Sent: Thursday, April 21, 2011 9:37 AM
To: Dennison, Laurie; Strickland, Bev
Subject: for file 09-0074
Attachments: D00042111-001.tif; D00042111.tif
thanks ladies.
Sue Homewood
NC DENR Winston-Salem Regional Office
Division of Water Quality
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone]
FIL7E ????-
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.
CONNECT EXIST. 6
SEWER TO PROPOSED 9
MANHOLE, SEE NOTE 1
PROP. STD MANHOLE #26 /--6-,\ 1
W/SOLID COVER 11
4 STA. 15+32.44 I
e RIM = 548.79 REMOVE AND REPLACE
INV. IN = 542.28 (NW) 27 LF OF EXIST. 7'
INV. IN = 543.97 (SW) CHAINLINK FENCE
INV. OUT = 542.18 EXIST. MIT 135A
MH#135 INV. OUT = 546.3
TOP=548.79 (SEE NOTE 2)
IN=543.89
OUT=543.79 j CLEAR AND
GRUB 0.004 Y
REMOVE & REPLACE 1 •~ ACRES
31 SY OF ASPHALT DRIVEWAY
11 ,
U COFF R DAM,
j TYP EE
NOTE 3
EXISTING 120'
PERMANENT v ILI AB NDO EWEYW55
EASEMENT. i Y r
M ?
15+0
l
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FNGE
OLD F 9 r'--? ?? J-
GE -- ^ - -
6O e' iNLiN'('" C r p T=5
cv?
I? INSTALL 41 LF _ t =
6 OF SILT FENCE 8. -
12 STREAM IMPACT p?
AREA 20.43 LF 4
(0.004 AC),
SEE NOTE 3 \
7 INSTALL 30 SY OF PROP. \
12 CLASS I RIP-RAP - PLUG {
LIMITS OF l
DISTURBANCE -
/ REMOVE & REPLACE 10 SY OLD PARKING LO
OF ASPHALT DRIVEWAY (BROKEN ASPHAL I
5
1t MH#218
NOW OR FORMERLY TOP=547.95 -?
THE CITY OF EDEN IN=545.05
PIN: 709007586707 IN(SW)=545.05
OUT=543.95 _
6 CONNECT EXISTING SEWER
9 TO PROPOSED MANHOLE,
SEE NOTE 1
FILE NAME: L:\Projects\EDEN\8034900RA\CADD\Dry Creek Ph 2\Dry Creek PH
NOTE:
1. CONTRACTOR SHALL REMOVE SUFFICIENT LENGTH OF EXISTING PIPE AND REPLACE WITH DI
- - PIPE, MAKE PIPE CONNECTION WITH FLEXIBLE CONNECTOR OR DUCTILE IRON TRANSITION
ADAPTER PER COUPLING DETAIL. CONTRACTOR SHALL TIE TO PROPOSED MANHOLE PER
< MANHOLE CONNECTION DETAIL.
2. EXISTING MANHOLE WAS NOT FOUND. LOCATION IS SHOWN USING EXISTING MAP KNOWN AS
;- DRAPER SANITARY SEWER SYSTEM REVISION-MAP #163-68. ENGINEER WILLIAM T. COMBS
DATED MAY 14, 1968. CONTRACTOR SHALL CONDUCT DISCOVERY EXCAVATION TO CONFIRM PIPE
PROP
MANHO E #27 \<< h SIZE, MATERIAL AND INVERT ELEVATIONS, BETWEEN MANHOLES #135 AND #135A.
.
FLAT TOP MA HOLE 3. CONTRACTOR TO PROVIDE COFFER DAMS ON THE UPSTREAM SIDE OF STREAM CROSSING AND
W/SOLID COVE
STA. 16+02.81 DOWNSTREAM IF NECESSARY (SEE DETAIL 6/SHT 10B) TO PERFORM A PUMP AROUND (SEE
\ DETAIL 6
SHT 10B) TO PROVIDE A DRY C
9 /
ONDITION DURING THE STREAM CROSSING
RIM = 547.67 CONSTRUCTION.
INV. IN = 545. 05 (NW)
5'X10' RECEIVING PIT
_
INV. IN = 544.
INV. OUT = 9 (W)
P
F.49 F
W/ 1:1 SIDE SLOPES

NOW OR FORMERLY
STEPHEN B. HODGES
?a D(3 979 PC 1640
- A PIN: 70900758455
PROP TOP=551.88

i -- o PLUG
o IN=547.98
OUT=547.88
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P=551.56
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VERT
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MH#219
TOP=552.15
OUT=546.75
PROP. 15'X25' El
PIT W/ 1:1 SIDE
f64*3 '43'
EXID 5 \ 18 P 2 I !?.. /iVV 18g' ¢CP
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h I
(NO LID!!!) - S
TON=545.65 ()/V O3/CRETES/
OUT=545.65 ;
CONNECT EXIST. SEWER TO g 22
PROPOSED MANHOLE, SEE NOTE 1 e
PROP. MANHOLE #28
NOW OR FORMERLY FLAT TOP MANHOLE W/SOLID
DRAPER LUMBER CO., INC. WATERTIGHT COVER AND VENT
DB 820 PC 741 STA. 17+83.90
550.45
3
PIN: 709007580499 RIM =
VENT ELL= = 55 552.45 9
INV. IN = 545.65
INV. .
PROP. 75 LF OF 24" X 0.250" 1
STEEL ENCASEMENT BY BORE AND 11
JACK METHOD 40 0 20
- EXISTING WATER LINE IMMMI
TO BE LOCATED PRIOR
TO CONSTRUCTION_ IN FEET
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community infrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Center Drive
Raleigh, NC 27607
(o) 919.782.0495
(1) 919.782.9672
www.wkdickson.com
NC LICENSE NO F-037¢ _-?

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PROJ.DATE:
PRINCIPAL:
PROJ. MGR.:
TECH:
Q.C.:
O.C. DATE:
PLOT DATE: 4/14/2011
RELEASED FOR.
FULL SCALE: 1"=40'
0 40'
FULL SCALE
DRAWING NUMBER:
86/13
PROJ. NO.:
GRAPHIC SCALE
12+50
FILE NAME: L:\Projf
13+00 13+50 14+00 14+50 15+00 15+50 16+00 16+50 17+00 17
t900RA\CADD\Dry Creek Ph 2\Dry Creek PH ILdwg f
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community infrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Center Drive
Raleigh, NC 27607
(o) 919.782.0495
(f) 919.782.9672
www.wkdickson.com
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PROJ. DATE:
PRINCIPAL:
PROJ. MGR.:
TECH:
C.C.:
Q.C. DATE:
PLOT DATE: 4/14/2011
RELEASED FOR:
FULL SCALE: 1"=X'
0 X.
FULL SCALE = 1"
DRAWING NUMBER:
86/13
PROJ. NO.:
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community infrastructure consultants
April 14, 2011
Andrew Williams
US Army Corps of Engineers
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Civ,
r
1
Subject: Request to Reissue Corp Permit SAW-2009-00109 for Dry Creek Sewer
Rehabilitation/Replacement
Dear Mr. Williams,
WK Dickson requests you to reissue the Nationwide Permit Verification for City of Eden-Dry Creek
Sanitary Sewer Improvements Phase I and II (SAW-2009-00109). This permit has expired on March 31,
2011. Phase 1 of this project impacts were temporary fill within 28 liner feet of jurisdictional stream
channel and temporary fill and permanent easement maintenance within 0.56 acre of adjacent forested
wetlands. This phase has been completed. The design for Phase 2 is nearing completion and includes
changes that will result in an additional temporary and minor impact to a stream channel.
The project is being undertaken to replace an existing sewer line adjacent to Dry Creek and repair
portions of the sewer line to improve safety and accessibility. Phase 2 addresses immediate repairs to
the more severe and potentially problematic sewers and manholes found during an inspection of the
Dry Creek sewer system. It consists of replacement of the remaining sections to prevent failure and
eliminate excessive outflow and infiltration.
An existing aerial sewer crossing over Dry Creek has been redesigned for replacement in the same
location and burial beneath the channel bed. The existing clay terracotta pipe will be replaced with
12-inch ductile iron pipe placed in an encasement pipe and restrained joints will be positioned to
either side of the stream channel. The existing pipe will be removed and stream banks will be restored
to pre-construction contours and stabilized. The design change allows for lowering the elevation of
the existing aerial crossing over Dry Creek. The lower elevation will allow this segment to be place
beneath the streambed, allowing unrestricted flow and the lodging of debris behind the crossing.
Above the stream crossing, 181 feet of relocation is planned to connect and upgrade two existing
manholes by a shorter distance located beneath Main Street (see Plan Sheet). The current sewer line
connection travels from a manhole west of Main Street with a portion exposed along the stream bank,
through an existing culvert, and with a portion exposed along the stream bank to the second manhole
east of Main Street. The existing pipe located along the stream bank and in the culvert will be
removed.
The stream crossing will be constructed in dry conditions utilizing a pump-around approach. No joints
will be connected within the footprint of the stream channel or within two (2) feet of the stream banks.
Riprap and a geotextile fabric will be utilized as required based upon calculated stream flows and
)0( olp'nwte Cent(„ 1)f m'
Ralei?;lt. 'C' 3-760'
1 910/8 ?.0 V) i
1-az 919.582.46%3
ri :?n.wlal.(L.o; rum Trr i.pui 9!i«n , l+'ater lt: SUUrce; 9 t ban Dcee ?rpn?c°n[ = (;"om'di(>
scour potential. The disturbed stream areas will be restored to preconstruction elevations and
stabilized with an appropriate wetland seed mix comparable to the mix shown in table below at a rate
of 15 pounds per acres (Table 1). Temporary seed mix will following NC BMP manual guidelines will
be applied immediately following construction.
Table 1. Proposed Permanent Seed Mix
Common Name Scientific Name Pounds per
Acre Indicator
Status
Greater bladder sedge Carex intwnescens 1.5 FACW
Shallow sedge Carex lurida 1.5 OBL
Beaked panicgrass Panicum anceps 2 FAC-
Virginia wild rye Elymus virginicus 1.5 FAC
Deer tongue Panicum clandestinum 2.5 FACW+
Soft rush JUnCUS effusus 2 FACW +
Eastern gammagrass Tripsacum dactyloides 3 FAC+
Big bluestem Andropogon gerardii 0.5 FAC
Pounds based on total 15 pounds per acre seeding rate.
Adverse effects on the aquatic environment are minimized and no endangered species will be affected.
All general conditions of the Nationwide Permit 12 and regional conditions will be adhered to during
project construction.
These projects address maintenance and repair issues, and do not increase capacity or development
potential within the watershed. This will result in 20.43 linear feet (0.004 acres) of temporary impact to
the stream channel. The impacts are temporary excavation. This impact will not result in a permanent
loss of stream and no wetlands will be impacted by the Phase 2 project.
The attached package includes, a supporting figures and the design plan for the stream crossing. Jute
matting and native plantings will be used to stabilize the disturbed stream bank. The stream will be
restored to pre-construction contours and stabilized. A 15-foot wide sewer easement will be
permanently maintained after construction. The project meets all conditions of the NWP 12 and GC
3699.
Table 2. Summary of Impacts
Phase 1 Phase 2 Total temporary
impacts
Stream Impacts
27.4 LF 20.43 LF 47.83 LF
Wetland Impacts
0.065 acres 0.0 acres 0.065 acres
Thank you for your prompt attention to this important project Please contact me if you have any
questions or require any additional information.
Sincerely,
W.K. Dickson & Co., Inc.
George K. Lankford
Project Scientist /
CC: Sue Homewood, NCDENR
Mark Bullins, Collection and Distribution Superintendent
Terry SheltoN, Director of Environmental Services
Mark Fisher, PE, WK Dickson Project Manager
File: 80349.00.RA I
Dry Creek Sanitary Sewer Improvements - Phase II N
Impacts Figure
Pkx"All< 0 50 100 200
=,R s Feet
"°° 1 inch = 100 feet