20110635 Ver 1_More Info Received_20110808

Allied Design, Inc.
CIVIL ENGINEERING -: LAND SURVEYING
August 2, 2011
Ms. Sue Homewood
Division of Water Quality
North Carolina Department of Environment & Natural Resources
585 Waughtown Street
Winston-Salem, North Carolina 27107
SUBJECT:
Dear Sue:

TANGLEWOOD PARK PAVED MULTI-USE TRAILS, DWQ# 11
ADI PROJECT NO.: 11-012
We are in receipt of your letter dated July 21, 20 11 regarding review comments for the above
referenced project, DWQ#11-0635. We believe we have addressed your comments on the
impact drawings and also offer the following additional responses.
Comment No. 1: Per the requirements of GC 3821, please enumerate all temporary
impacts..... provide a restoration detail, specification.-
Response/Action: The plan view impact drawings, Sketch. CIA, C2A and C3A, have been
modified to better illustrate both permanent and temporary stream/wetland impacts. The
temporary dewater.ng and erosion control measures have been shown. The area of wetlands
impacts and the length of stream impacts have been listed on the impact drawings. An additional
drawing, C5 "Streambank Restoration", is also being provided to illustrate how the temporary
impact areas will be restored. The impacts have also been updated and clearly indicated on the
impact table and a revised copy is being provided with this s-ubmittal.
Comment No. 2: Per the requirements of GC 3821, all wort: must be done "in the dry".
Therefore, dewatering....
Response/Action: Since the streams are intermittent, we have provided notation requiring, to the
extent practical, that the culvert installation be performed "in the dry". With the realization that
weather and/or the project schedule may not make this practical we have provided an additional
drawing Sketch C4 "Stream Crossing with Pump Bypass" to detail how the culverts may be
installed with the use of sandbags and a by-pass pump. The additional temporary impact limits
to accommodate the pump around have been illustrated. This detail was provided on the revised
erosion control plans as recently approved by the Land Quality Section. Use of temporary
equipment crossings will not be required as the site can be easily accessed from either side and
only the permanent pipes will be required for crossing.
Comment No. 3: Please provide impact drawings that clearly indicate the location of all
impacts to wetlands. We recommend......
Response/Action: It should be noted that we have had our environmental consultant from
S&ME return to the site to delineate the wetlands at the actual point of the revised crossing for
Culvert 1. Our surveyors field located the flagging they placed and the new limits have been
illustrated on impact drawing Sketch CIA. As noted in the response to Comment No. 1 above,
4720 KESTER MILL ROAD WINSTON-SALEM, NORTH CAROLINA 27103
Phone: [phone] -:- Fax: [phone]
www.allieddesign.com
I `/` in5tor,-s"I"o M
Regional Office
Ms. Sue Homewood
Tanglewood Park Paved Trails
DWQ## 11-0635
August 2, 2011
Page 2
we have revised all the impact drawing sketches to better illustrate the locations and areas of the
permanent and temporary impacts. The areas have been hatched in different colors to
differentiate the difference. The construction limits are also now shown on these drawings to
better define the limits.
Comment No. 4: Please indicate whether an energy dissipation measure will be
required........
Response/Action: Just to confirm as related in our telephone conversation, our drawings should
be illustrating the flared end sections or outlet structures on the ends of the proposed culverts -
no energy dissipation is illustrated. Our plans were approved by the Land Quality Section
without the rip-rap aprons.
Comment No. S: Please provide a construction sequence and details (plans/drawings) that
detail the restoration........
Response/Action: As noted in the response to Comment No. 1, we are providing with this
submittal copies of drawing C5 "Streambank Restoration" to illustrate the restoration of the
temporary impacts.
Please contact our office if you have any additional comments or questions. We have
appreciated your communication and timely review on this project.
Sincerely,
Steve M. Causey, P.E.
Enclosures: Sketch C1A (4 copies)
Sketch C2A (4 copies)
Sketch C3A (4 copies)
Sketch C4 (4 copies)
Sketch C5 (4 copies)
Revised Page 5 of PCN Form (4 copies)
cc: Mike Anderson, Forsyth County Parks and Recreation
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TANGLEWOOD PARK PAVED Allied Design, Inc.
CIVIL ENGINEERING* LAND SURVEYING
MULTI-USE TRAILS
4720 KESTER
INSTON-SALEM, MILL ROAD
W
WINALEM, NORTH CAROLINA 27103

CULVERT 1 PLAN Phone: [phone]
Fax: (336) 760
-8886
e
d-en
http://www. allied-engsurv. com
CLEMMONS, NORTH CAROLINA PROJECT NO.
DATE:
SCALE:
SKETCH NO_ 11.012
06/27111
111=40'
C1A

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LEGEND LEGEND
so - so STREAM DELINEATION - so - TEMPORARY STREAM IMPACT- 15 LF
(PER S&ME, INC.)
- so - PERMANENT STREAM IMPACT - 30 LF
•''D- LAD WETLAND DELINEATION
(PER S&ME, INC.) TEMPORARY WETLAND IMPACT
0.0085 AC
.„ PERMANENT WETLAND IMPACT
0.0275 AC
TANGLEWOOD PARK PAVED Allied Design, Inc.
CIVIL ENGINEERING*LAND SURVEYING
MULTI 4720 KESTER
LROAD
-USE TRAILS W
INSTTON-SONS LE
WINALEM, NORTH CAROLINA 27103

CULVERT 2 PLAN Phone: [phone]
Pax: (33
760-8886
http://www.all- allied-en
engsurv.com
CLEMMONS, NORTH CAROLINA PROJECT No.
DATE:
SCALE:
SKETCH NO.: 12
06/27/!27/11
V=40'
C2A
36" POPLAR
4-00 POPLAR,.
POPLAR
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LEGEND LEGEND
sD - sc STREAM DELINEATION - sD - TEMPORARY STREAM IMPACT - 9 LF
(PER S&ME, INC.) - sD - PERMANENT STREAM IMPACT - 30 LF
.D - 'D WETLAND DELINEATION
(PER S&ME, INC.)
Allied Design, Inc.
TANGLEWOOD PARK PAVED CIVIL ENGINEERING*LAND SURVEYING
OAD
4720 KESTER MILL
S ??,\\\ WINSTON-SALEM, N NORTH CAROLINA 27103
MULTI-USE TRAIL
Phone: [phone]
d-en
-8886
CULVERT 3 PLAN htt: (336) 760ttp://www. allie
engsurv. com
12
11-
DATE: 06/27//27/11
CLEMMONS, NORTH CAROLINA PROJECT No.
SCALE: 1"=40'
SKETCH NO: C3A
o ?n
INTERMITTENT STREAM
o INTAKE PIPE
c
=c TEMPORARY SANDBAG DAM PUMP
TEMPORARY SEDIMENT BASIN TEMPORARY SEDIMENT BASIN
Off/
?S??JG?\ 111 ? ? ?)) > > •
GO?11 PROPOSED CULVERTS
1000, lll?l.
4 / 1
111 PAVED TRAIL
1 TEMPORARY SEDIMENT BASIN
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INTERMITTENT STREAM
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NOTES:
1 DISCHARGE PIPE
TO SEDIMENT BASIN
o
P o
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PUMP DISCHARGE
TEMPORARY SEDIMENT BASIN
1. THIS IS AN INTERMITTENT STREAM AND WORK SHOULD BE SCHEDULED TO AVOID USE OF PUMP BYPASS. STREAM CROSSING
WITH PUMP BYPASS SHALL ONLY BE USED IN THE EVENT THAT NORMAL WEATHER CONDITIONS AND THE PROJECT SCHEDULE
DO NOT ALLOW INSTALLATION OF CULVERTS DURING PERIODS OF NO FLOW.
2. DETERMINE SUITABLE PUMP LOCATION AND VERIFY WORKING ORDER OF PUMP(S) PRIOR TO CONSTRUCTION OF TEMPORARY
SANDBAG DAM. PUMP(S) SHALL BE ADEQUATELY SIZED TO HANDLE BASE STREAM FLOWS. WORK SHOULD NOT BE
PERFORMED DURING ABNORMALLY HIGH OR EXCESSIVE FLOWS. ROUTE DISCHARGE PIPING TO TEMPORARY SEDIMENT BASIN
TO PROVIDE ENERGY DISSIPATION AT PUMP DISCHARGE OUTLET.
3. INSTALL ROCK CHECK DAM AT DOWNSTREAM LOCATION.
4. INSTALL TEMPORARY SANDBAG DAM UPSTREAM OF CULVERTS. BEGIN BYPASS PUMPING AS WATER IS IMPOUNDED.
5. CONTINUE BYPASS PUMPING AND INSTALL PERMANENT PIPE CULVERTS AND END WALLS. BACKFILL CRITICAL ZONE AROUND
PIPE WITH STONE AND BEGIN PLACEMENT OF FILL MATERIAL.
6. UPON STABILIZATION OF FILL SLOPES, BYPASS PUMP OPERATIONS CAN BE DISCONTINUED. REMOVE TEMPORARY SANDBAG
DAM, PUMP(S), DISCHARGE PIPING AND DOWNSTREAM ROCK CHECK DAM. RESTORE STREAM BANKS TO ORIGINAL CONDITION
AND PROVIDE REVEGETATION/STABILIZATION.

TANGLEWOOD PARK PAVED Allied Design, Inc.
CIVIL ENGINEERINGOLAND SURVEYING
MULTI-USE TRAILS TAT
4720 KESTER
INSTON-SALEM, MILL ROAD
W
WINALEM, NORTH CAROLINA 27103

STREAM CROSSING WITH PUMP BYPASS Phone: [phone]
Pax: (336)760-
8886
http://www. allied-en
engsurv. com
CLEMMONS, NORTH CAROLINA DATE: TNO_

DATE:
SCALE:
11-
12
08//01/01/11
NTS
NEW FLARED
END SECTION
OR ENDWALL
NEW TOP OF BANK. GRADE TOP
OF BANK TO TIE TO NEW I j
CONCRETE FES OR ENDWALL.
NEW STREAM CHANNEL. GRADE '.,
STREAM BOTTOM TO PROVIDE
SMOOTH, LINEAR FLOW FROM OUTLET I
END OF FES OR HEADWALL TO Y
EXISTING STREAM BED.
EX INTERMITTENT ISTREAM
I
NEW FLARED
END SECTION
OR ENDWALL
NEW TOP OF BANK ADJACENT TO
FES. GRADE TOP OF BANK TO TIE TO
NEW CONCRETE FES OR ENDWALL.
EX TOP
OF BANK
NEW STREAM CHANNEL. GRADE
STREAM BOTTOM TO PROVIDE
SMOOTH, LINEAR FLOW FROM OUTLET
END OF FES OR HEADWALL TO
EXISTING STREAM BED.
NOTES:
i
i
i
RESTORE STREAM BANK TO ORIGINAL
PROFILE AND DIMENSIONS. MATCH
GRADES/SECTION OF STREAM
IMMEDIATELY DOWNSTREAM.
i
RESTORE STREAM BANK TO ORIGINAL
PROFILE AND DIMENSIONS. MATCH
GRADES/SECTION OF STREAM
IMMEDIATELY DOWNSTREAM.
1. UPON COMPLETION OF PIPE INSTALLATION AND PLACEMENT OF FILL MATERIAL ADJACENT TO STREAM, PROVIDE VEGETATIVE COVER ON
DISTURBED AREAS. ALLOW PERMANENT VEGETATIVE COVER TO ESTABLISH BEFORE RESTORATION OF STREAM BANKS.
2. STREAMS ARE CLASSIFIED AS INTERMITTENT. WORK SHOULD BE SCHEDULED TO AVOID PERIODS OF FLOW IN STREAM BED.
3. REMOVE TEMPORARY SEDIMENTATION AND EROSION CONTROL MEASURES FROM STREAM LIMITS TO BE RESTORED.
4. RE-GRADE AND RESHAPE STREAM BANKS, TOP AND BOTTOM TO RESTORE PROPER PROFILE AND DIMENSIONS.
5. RESEED DISTURBED AREAS IN ACCORDANCE WITH PERMANENT SEEDING SCHEDULE - DO NOT USE LIME OR FERTILIZER IN THESE AREAS.
6. INSTALL EROSION CONTROL MATTING OVER DISTURBED AREAS. MATTING SHALL BE NAG SC 150 AND SHALL BE A STRAW AND COCONUT FIBER
BLANKET AS MANUFACTURED BY NORTH AMERICAN GREEN (OR EQUAL). LINING SHALL BE A MACHINE-PRODUCED MAT CONSISTING OF 70 %
AGRICULTURAL STRAW AND 30 % COCONUT FIBER. THE BLANKET SHALL BE A CONSISTENT THICKNESS WITH THE STRAW AND COCONUT FIBER
EVENLY DISTRIBUTED OVER THE ENTIRE AREA OF THE MAT. THE BLANKET SHALL BE COVERED ON THE TOP SIDE WITH HEAVYWEIGHT
PHOTODEGRADABLE NETTING HAVING ULTRAVIOLET ADDITIVES TO DELAY BREAKDOWN AND AN APPROXIMATE 5/8 INCH X 5/8 INCH MESH, AND ON
THE BOTTOM SIDE WITH A LIGHTWEIGHT PHOTODEGRADABLE POLYPROPYLENE NETTING WITH AN APPROXIMATE 1/2 INCH X 1/2 MESH. THE
BLANKET SHALL BE SEWN TOGETHER ON 1.5 INCH CENTERS WITH DEGRADABLE THREAD. WEIGHT SHALL BE 0.5 #/SY.
7. OWNER TO ALLOW RE-ESTABLISHMENT OF NATIVE GRASSES AND VEGETATION. THESE AREAS SHALL NOT BE RESEEDED AND FERTILIZER SHALL
NOT BE USED ADJACENT TO STREAM.
TANGLEWOOD PARK PAVED
MULTI-USE TRAILS
STREAMBANK RESTORATION
CLEMMONS, NORTH CAROLINA
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Allied Design, Inc.
CIVIL ENGINEERINGOLAND SURVEYING
4720 KESTER MILL ROAD
WINSTON-SALEM, NORTH CAROLINA 27103
Phone: [phone]
Fax: [phone]
http://www.allied-engsurv.com
PROJECT N0= 11-012
DATE: 08/01/11
SCALE: NTS
SKETCH NO_: C5
EX INTERMITTENT
STREAM

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 T
W1 ®P ? T C1, pipe ® Yes ® Corps 0.0854
installation and fill ? No ® DWQ
W2 ®P ? T C2, pipe ? Yes ® Corps 0
0275
installation and fill ® No ® DWQ .
W3 ® P ? T C3, pipe ? Yes ® Corps 0
00
installation and fill ® No ® DWQ .
W4 ? P ®T C1, temp const ® Yes ® Corps

and ec measures
? No
® DWQ 0.0568
W5 ? P ® T C2, temp const ? Yes ® Corps

and ec measures
® No
® DWQ 0.0085
W6 ? P ®T C3, temp const ? Yes ® Corps

and ec measures
® No
® DWQ 0.00
2g. Total wetland impacts 0.1782
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 -
Permanent (P) or (PER) or
intermittent (Corps - 404, 10
DWQ - non-404 stream
width length
(linear
Temporary (T) (INT)? ,
other) (feet) feet)
S1 ®P ? T C1, pipe Unamed trib. to ? PER ® Corps ' '
installation and fill Johnson Creek ® INT ® DWQ 3 50
S2 ® P ? T C2, pipe Unamed trib. to ? PER ® Corps ' '
installation and fill Johnson Creek ® INT ® DWQ 2 30
S3 ® P ? T C3, pipe Unamed trib. to ? PER ® Corps '

installation and fill
Johnson Creek
® INT
® DWQ 2 30'
S4 ? P ®T C1, temp const Unamed trib. to ? PER ® Corps '

and ec measures
Johnson Creek
® INT
® DWQ 3 30'
S5 ? P ® T C2, temp const Unamed trib. to ? PER ® Corps ' '
and ec measures Johnson Creek ® INT ® DWQ 2 15
S6 ? P ® T C3, temp const Unamed trib. to ? PER ® Corps '

and ec measures
Johnson Creek
® INT
® DWQ 2 9'
3h. Total stream and tributary impacts 164'
3i. Comments:
Page 5 of 11
PCN Form - Version 1.3 December 10, 2008 Version