20050732 Ver 01_Other Agency Comments_20071227

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DEPARTMENT OF THE ARMY
WILMINGTON DISTRICT, CORPS OF ENGINEERS
P.O. BOX 1890
WILMINGTON, NORTH CAROLINA 28402-1890
IN REPLY REFER TO December 21, 2007
oS- 032
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~'` ~ ~ 7 2007
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Regulatory Division
Action ID. 200121252
Mr. Mitch Barron
Newland Communities
5850 Fayetteville Road, Suite 201
Durham, NC 27713
Dear Mr. Barron:
Reference the Department of the Army (DA) permit issued on October 2, 2006, to
Mitch Barron of Newland Communities for impacts associated with the Briar Chapel
Development. This development is approximately 1,589 acres in size and is located west
of US Highwayl5-501, north of Andrew's Store Road (SR 1528), and south of Mann's
Chapel Road (SR 1532), approximately 5 miles south of Chapel Hill, in Chatham County,
North Carolina. Coordinates (in decimal degrees) for the site are 35.8251 ° North,
79.1059 ° West. The site contains several unnamed tributaries and adjacent wetlands of
Pokeberry Creek and Wilkinson Creek, in the Cape Fear River Basin (8-Digit Cataloging
Unit 03030002). In addition, please reference the modification to this permit dated
December 5, 2007, requesting modification to crossings F, G, H, and I in the amount of
163 linear feet of permanent stream impact, 367 square feet of permanent wetland
impact, and 851 square feet of temporary wetland impact. Maps showing this
modification were included as Exhibit E.
Two additional impacts, identified as Crossing C and Utility Crossing 7, were
requested under this modification but were inadvertently left out of the December 5th
approval letter. Wetland impacts for Crossing C are now proposed in the amount of
0.0013 acre of permanent impact, and 0.0006 acre of temporary impact. Utility Crossing
7 impacts are now proposed at 0.2603 acre of permanent wetland impact.
We have completed our evaluation of your request and concur with your request
for a change in impacts associated with your referenced DA permit. Construction
drawings pertaining to this modification are attached to this letter and will act as special
permit conditions. These drawings are also considered supplementary plans of those
attached to the December 5`}' approval letter and identified as Exhibit E. No additional
mitigation is required for this modification.

It is understood that all other conditions of the permit, including the permit
expiration date, remain applicable. This includes the modification items described within
the letter of December 5, 2007. Should you have questions, contact Mr. Monte
Matthews, Raleigh Regulatory Field Office at telephone [phone], Extension 30.
Sincerely,
~~ John E. Pulliam, Jr.
Colonel, U.S. Army
District Commander
Enclosures
Copy Furnished w/enclosures:
Ms. Cyndi Karoly
2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604
Mr. Sean Clark
11010 Raven Ridge Road
Raleigh, NC 27614
2

S.u ppl~m~ nta.ry to Exhibit E
i ~ ~ i~
\~ ~~ \ \ ~ i , PEDESTRIAN BRIDGE _
~ \~ ~ \\ I I i i (SEE BRIDGE~ROSSING
~\ ~ i i • ` SECTION-0 EXHIBIT)
~\ ~ I
410.4
\ WETLANDS ~ , , 409
~ ~~
~ ~~ x
CORED SLAB BRIDGE +i I
x \ ~1 1~ \/ (THIS SHEET) ~ x 409.9
\ n
..... \
..... ' ~x 4 .8 ,,
~- ..4.~.p.:... \ ~\ ~ i -~ wETLANDs; ~-'"~~~
x \ I ~ ~
WETLANDS .....1-:.:. .. r / ~, ~,, ''
~ / ~`y ,__
~ r r
r
l ~ ,~--
PIER-SUPPORTED ~x ~'' ,~ y~ ,
TEMPORARY WORK BRIDGE '~~' /' ,' ,'k~4 ~ ~ ~ '~ '~~,
, i ,y .~
48'L X 28'W -' \ ,~'~ ~' 20 , ~~'~~ ~~~~~'
PIER-SUPPORTED ,''~,~'~ \ ~' ~- ~~`~ ~ ~
8 TEMPORARY WORK BRIDGE ~,~' / , ~ ~ ' ~ ' ~,~ d ~~' ~, ' ~~,.'
PERENNIAL /' ,' ~ r ,~ ~` / ~~ ~,`a'~ ,' i ~
STREAM ~ ~ // / ~,k~~ r' r ` rrr ~,~' tx r ~~~
/ / , r r r ~ /Y , ,.
/ / r r , , ~'~~ ,• , ~'
i ~ / ~ / i / r mar ' '/r i ~ i // // -/" ~/ ~// i~ ~ ~~~ n/ ''
PREVIOUSLY AUTHORIZED IMPACT -rr~.ivarvua
(ACTION ID # 200121252):
CHANNEL IMPACT=O LF
WETLAND IMPACT=APPROX. 8 SF
(12" X 12" PILES, SPACED AT 7'-8' INTERVALS)
PROPOSED MODIFICATION:
CHANNEL IMPACT=O LF GRAPHIC SCALE
WETLAND IMPACT=APPROX. 58 SF (FINAL BRIDGE PIERS) 40 o zo 4o so
TEMPORARY WETLAND IMPACT=25 SF (TEMP. BRIDGE PIERS) , I I I I
NET DIFFERENCE:
WETLAND IMPACT=+50 SF 1 inch = 40 ft.
TEMPORARY WETLAND IMPACT=+25 SF (TEMP. BRIDGE PIERS)
NOTE:
1. THREE {3) 36" INCH DIAMETER REINFORCED CONCRETE COLUMNS ARE REQUIRED AT EACH OF TWO (2) INTERIOR
BENTS TO SUPPORT THE FINAL BRIDGE SPAN. EACH COLUMN IS SUPPORTED ON A 42" DIAMETER DRILLED SHAFT.
CONSTRUCTION OF THE DRILLED SHAFTS WILL REQUIRE DRILLING INTO BEDROCK CREATING A DE MINIMUS DISCHARGE
INTO WATERS OF THE UNITED STATES.
~ /

~ PROJECT N0. NEW-O3DDO
~~~` ~ ~~` ~~~~
'
THE JOHN R. McADAMS
~ FILENArtEBridge Crossing ~j( COMPANY, INC.
~
e
SCALE: 1 „_40.
BRIDGE CROSSING SECTION-C ENGINEERS/PLANNERS/SURVEYORS
RESEARCH TRIANGLE PARK. NC
"~'"
~ DATE:
05-25-07 CHATHAM COUAPIY, NOFrTH C,PiROLINA P.O. BOx 14005 ZIP 27709-4005
(si9) sei~ooG

Su~~l~m+~ntary to Exhibit E
0
WETLANDS
u
WETLANDS
l
~~~ EXISTING
~ga9 (REED BANK
TYP.
EXISTING
~- WATER 40' WIDE CONSTRUCTION CORRIDOR
SURFACE FOR VARIOUS PUBLIC/PRIVATE UTILITIES
(TYP.} (QUANTITY AND SIZES TO BE DETERMINED)
WETLANDS
DELINEATION
LINE (TYP.) WETLANDS
PREVIOUSLY AUTHORIZED IMPACT
(ACTION ID # 200121252,
TEMP. CHANNEL IMPACT = 20 LF (0.005 AC.)
TEMP. WETLAND IMPACT = 0.123 AC.
PROPOSED MODIFICATION:
TEMP. CHANNEL IMPACT = 0 LF (0.00 AC.)
(NO CLASSIFIED CHANNEL IN THIS AREA)
TEMP. WETLAND IMPACT = 0.2603 AC.
~IE.T DIFFERENCE:
TEMP. CHANNEL IMPACT = -20 LF (-0.005 AC.)
TEMP. WETLAND IMPACT - +0.1373 AC.
NOTES:
1. TEMPORARY EROSION CONTROL MEASURES
SHALL BE IMPLEMENTED DURING CONSTRUCTION
OF THE UTILITY CROSSINGS
2. TEMPORARY RIP-RAP STABILIZATION SHALL
BE IMPLEMENTED AT STREAM CHANNELS DURING
CONSTRUCTION OF THE UTILITY CROSSINGS AND
REMOVED UPON STABILIZATION.
3. WETLANDS SHALL BE RE-SEEDED WITH
WETLANDS SEED MIX UPON CONSTRUCTION
COMPLETION. ,
LEGEND
WETLANDS IMPACT AREA
~ ``~'~~~r

~ .~ 7: CHANNEL IMPACT AREA

40' WIDE CONSTRUCTION
CORRIDOR
e
GRAPHIC SCALE
50 0 ~5 50 100
1 t i!
1 inch = 50 ft.

PROIECr No. NEW-03000
~~~~~ ~~~~j
THE JOHN R. McADAMS
~ s-.ENAxE:Utility Crossing 7 J„1 COMPANY, INC.
°°°-.-

ry
SCALE: 1 u-rJ0' UfiIL11'Y CROSSING SEC'T`ION-~ ENGBdEERS/PLANNERS/SURVEYORS
a RESEARCH 77tL1NGLE PARK
NC
'~` -ATE: CHATHAM COu171 i, ~0~~ Ct~O~A ,
P.O. BOY 14005 ZIP 27700-4005
~ 05-25-2007 [phone]