20090080 Ver 2_More Info Received_20100107

Mcmillan, Ian
From: Kim Williams [[e-mail]]
Sent: Thursday, January 07, 2010 8:20 AM
To: Mcmillan, Ian; Scheller, Roberto
Cc: John Thomas Sr
Subject: spring creek response
Attachments: Spring Creek Roadway Section Plans 1-6-2010.pdf
Hi Ian and Roberto
Here is a response to DWQ's latest comments.
Is it necessary to have a standard 2 lane highway back into hunting cabins where a one lane road will work??
The applicant considered reducing the proposed road width leading to the second upland island. As depicted in the road
cross section provided by Thomas Engineering, the road itself will only be 22' in width. Shoulders and swales are
necessary to ensure safety and provide stabilization. Furthermore, the site is also used for timber production and the
proposed road will provide access to large equipment needed to harvest trees. Adequate road width is needed for this
equipment.
All so had questions on hydraulic connectivity of wetlands from roadway construction, pipe placement of 20% for low flow
conditions, and riprap used in wetland areas, at end of pipes, for stabilization???
The applicant plans to install culverts under the roadways, as depicted in the revised drawings provided by Thomas
Engineering (attached). As these drawings show, the culverts will be buried partially under the ground elevation so that
they outfall into the adjacent swales. The contractor will insure that the culverts are buried a minimum of 20% of the pipe's
diameter.
Detail EC2 (Sheet 6) shows the proposed rip rap outlet protection. This rip rap will be placed in the swales where the
culvert ends and will not increase overall wetland impacts.
The area where roadway has buffer impacts is a pipe needed here for connectivity?
Sheet 4 of 6 shows a culvert in the vicinity of the proposed buffer impact.
I hope this addresses everything. Let me know if you need anything else.
Thanks,
Kim Williams
Land Management Group, Inc.
P.O. Box 2522
Wilmington, NC 28402
Phone: [phone]
Fax: [phone]
PROP05ED
(FORM. EXISTING)
ROADWAYS
ROAD (5R 1327)
OVERALL SITE
BOUNDARY
OWNER/DEVELOPER
_
_ _---
SPRING CREEK LAND ? TIMBER. LLC
3313 US HIGHWAY 70 EAST
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COVER
ROADWAY SECTION PLAN5 for
SPRING CREEK
# 2 PAML'CO COUNTY
THOTNIAS EN,
P. O. BOX 1301), NEW BEAM NC. 28563
31'l%'N'.'1'llO.NIAtiI-.N(,INFIt'l2IN(:I':\.l'O.NI
OPP; 252.637.2727 FAX: [phone]
SCALE: 1 ":5000'
PROJECT #: 2000-018
NORTH CAROLINA
7. 13.09
SHEET: I of G
VICINITY MAP
I "= 5000'
GENERAL NOTES
I . THESE PLANS ARE MEANT TO SUPPLEMENT PLANS PREPARED BY LAND MANAGEMENT GROUP, INC. WITH
THE FOLLOWING INFORMATION: PROJECT: PAMLICO #12, JOB NUMBER 01-04-344, ORIGINAL DATE
12-30-08.
2. THESE PLANS ADDRESS IMPACTS TO WETLAND PORTIONS OF THE PROPOSED PROJECT ONLY AND DO NOT
ATTEMPT TO ADDRE55 IMPACTS TO UPLAND REGIONS OF THE PROPOSED PROJECT.
3. AERIAL IMAGES AND SOIL MAPPING AS SHOWN HEREIN WERE PROVIDED BY LAND MANAGEMENT GROUP,
INC. AND SHOULD BE USED FOR CONCEPTUAL PURP05E5 ONLY.
4. TOPOGRAPHIC INFORMATION INCLUDED HEREIN IS FROM DATA PROVIDED BY THE NORTH CAROLINA
FLOODPLAIN MAPPING PROGRAM.
5. GRADE AND STORM DRAIN ELEVATIONS SHOWN HEREIN ARE APPROXIMATE AND ARE TO BE FIELD
VERIFIED.
G. CONTRACTOR SHALL BE RESPONSIBLE FOR DISCOVERY OF EXISTING UNDERGROUND INSTALLATIONS, IN
ADVANCE OF EXCAVATING, BY CONTACTING ALL LOCAL UTILITIES AND BY PROSPECTING.
7. CONTRACTOR SHALL EXERCISE EXTREME CAUTION WHEN WORKING AROUND ALL EXISTING UTILITIES AND
SHALL TAKE ALL NECESSARY PRECAUTIONS TO PREVENT DISRUPTION OF SERVICES TO CUSTOMERS.
8. ALL SEEDED AREAS WILL BE FERTILIZED, RESEEDED AS NECESSARY, AND MULCHED ACCORDING TO
SPECIFICATIONS IN THE VEGETATIVE PLAN TO MAINTAIN A VIGOROUS, DENSE VEGETATIVE COVER.
9. THE WORK AREA SHALL BE GRADED, SHAPED, AND OTHERWISE DRAINED IN SUCH A MANNER AS TO
MINIMIZE 501L EROSION AND SILTATION OF DRAINAGE CHANNELS, DAMAGE TO EXISTING VEGETATION,
AND DAMAGE TO PROPERTY OUT5IDE THE LIMITS OF THE WORK AREA.
10. TEMPORARY SILT FENCE LOCATIONS ARE TO BE DETERMINED BY THE ENGINEER THROUGH ON 51TE
INVESTIGATION PRIOR TO CONSTRUCTION ACTIVITIES.
1 1 . PROVIDE A PERMANENT GROUND COVER ON EXP05ED 5LOPE5 WITHIN 21 CALENDAR DAYS FOLLWOWING
THE COMPLETION OF GRADING.
COPYRIGHT ® 2009 BY THOMAS ENGINEERING, P.A.
ALL RIGHTS RESERVED. THESE DRAWINGS ARE INSTRUMENTS OF SERVICE AND AS SUCH REMAIN THE PROPERTY
OF THOMAS ENGINEERING, P.A. NEITHER THIS DOCUMENT NOR ANY PART OF THI5 DOCUMENT MAY BE REUSED,
REPRODUCED, OR TRANSMITTED IN ANY FORM OR BY ANY MEANS, ELECTRONIC OR MECHANICAL, INCLUDING BY
NOT LIMITED TO PHOTOCOPYING, MICROFILMING AND RECORDING, OR BY ANY INFORMATION STORAGE AND
RETRIEVAL SYSTEM, WITHOUT PERMISSION 15 WRITING FROM THOMAS ENGINEERING, P.A.
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Topocyaphlc Elevatlon5 l
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Number Min. Elev. Max. Elev.

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6 1.91 1' i
9 2.1' 2.5'
10 2.5' 5.2' I_ .
Exlstmcg Roadway Impacts
2.89 ac
(to be improved)
PrDposed Roadway Impacts
404 Wetlands 0.90 ac
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A& lip
Note: Corrugated Plastic Pipe (CPP), for wetland equalization,
are representative only and do not depict actual lengths.
Ex. Roads - ?
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ROADWAY PLAN * TOPOLOGY
ROADWAY SECTION PLANS for
SPRING CREEK
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THOMAS ENGINEERING, P1-?
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SCALE: _ 1 ;:8C0' _ ?.
DATE: 7. 1 3.09
QC -PROJECT ,,: 2006-01 SHEET: 4 of 6
7' 4'
5hLD.
44' TOTAL (TYP.)
2 2'
8" CABC (I /4"/FT)
4' 7'
5HLD.
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FULLY 5TABILIZED
PSRM WHERE NECESSARY
TYPICAL SECTION
(APPLIE5 TO ALL ROADS)
FULLY STABILIZED
P5RM WHERE NECE55AeY
44' TOTAL (TYP.) 18" M IN. COVER
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5" CABC (I
37LF16* CPP
FULLY STABILIZED
PSRM WHERE NECESSARY
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TOP ELEVATION FOR PA55AGE
DURING LOW FLOW CONDITIONS
SECTION A-A
(TYPICAL PIPE CRO551NG)
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TYPICAL SECTIONS
ROADWAY SECTION PLANS for
5PRING CREEK
TOWNSHIP h 2 PAIMLICC) COUNTY NORTH CAS C:LINA
THOMikS ENGINEERING, PA
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SCALE N.I 5. DATE: 7 .13.09
PROJECT #: 2006-018 SHEET: 5 of G
VARIE5
STAY
36
3
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GRCUND LINE
EIGfNEE?.
INTERVALS
GENERAL NOTES:
TOP STRAND
10 GAUGE Mlh1. 1 , WIRE 5HALL BE A MINIMUM OF 32" ICJ
LINE WIRE5 VADTH AND 5HALL HAVE A MINIMUM OF G
12-112 GAUGE mm LINE WIRES WITH 12" STAY SPACING.
BOTTOM 5TRAtID 2. FILTER FABRIC 5HALL 6E r. MINItAUlM
10 GAUGE MM. OF 36` IN WIDTH AND SHALL SE FA5TENED
AD'EOUATELY TO THE ?VRE AS DIRECTED
5Y THE ENGINEER.
3. STEEL P05T5 SHALL DE 5' IN HEIGHT
AND 5HALL BE OF THE 5ELF-FA5TENER
ANGLE STEEL TYPE.
4. OvD P05T5 511ALL BE A MINIMUM
OF G' IN HEIGHT AND 3' OR ia'.CRE IN
DIAME'iIER. tVIRE FABRIC 5HALL BE
FASTENED TO WOOD P05TS W TM NOT
LE55 THAN #9 WIRE STAPLES 1-112" LONG.
DETAIL EC I - TEMPORARY 51LT FENCE
(t2)?
d(16") A-A -FILTEi? BL:.NKET
SECTION
rLAN
DETAIL EC2 - PIPE OUTLET PROTECTION
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GENERAL NOTES
I , La 15 THE LENGTH OF THE RIPRAP APRON.
2. d= 1.5 TIME5 THE tvIAXIMUP,S STONE DIAMETER BUT
NOT LESS THAN G".
3. IN A WELL-DEFINED CHANNEL EXTEND THE APRON
UP THE CHANNEL 5ANK5 TO AN ELEVATION OF G"
ABOVE THE MAXIMUM TAILIVATER DEPTH OR TO THE
TOP OF THE BANK, WHICHEVER 15 LESS.
4.A FILTER DL_ANKET OR FILTER FABRIC SHOULD ESE
INSTALLED BETWEEN THE R1PFAP AND SOIL FOUIJ-
DATION.
ROADWAY * EROSION CONTROL DETAILS
ROADWAY SECTION PLANS for
SPRING CREEK
k 2 PAL1LIC0 COuNlY NORTH CARC?I.ItJA
ER?xTHOTAIAS ENGINEERING, PA
CI VII,
rsc;r?r:ra:r?c:.r.,??n r>r•:? ra,<Ir>ub:x'r.3>1;c).na°r ?ra?ac,r?u•:? r
I'. O. 130\ 1:111), NIM' I3b RN. NC, 28.-)(3:3
\1'1?"11'.'1'110\L\SI?\(rl\I•:Ia:I\GP:?.('O\1
Ob'I': 252.637.2727 F '.AX: 232.636.2448
SCALE: N.T.S. ?- DATE: 7.13.09
JECT #: 2000-018 SHEET: G of G