20041983 Ver 2_Site Plan_20071107

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VEwUREENeWEER/Ne, P.A.
Professional Engineers Specializing m Civil Engineering & Land Development Projects
Phone: [phone] Fax: [phone]
Mm a gm th @ v en t u re - E, c om
LETTER OF TRANSMITTAL
FROM:
Mark J. Magrath P.E. - Principal Date: November 6, 2007
Venture Engineering, P.A.
314 West Millbrook Road, Suite 005
Raleigh, NC 27609 Transmitted: Hand Deliver
TO: Amy Chapman RE: The Garden at Town Hall Common Lot 31 & 32
NC Division of Water Quality Minor Variance Riparian Buffer Permit Work
401/Wetlands Unit
2321 Crabtree Blvd, Suite 250
Raleigh, NC 27604
Phone: [phone] FILE

Submitted
A. Two (2) sealed prints of the Retaining Wall Site plan with proposed storm water measure
Venture Engineering, P.A.
Mark J. Magrath, PE
Principal
D ??I?U ?:J R
NOV 7 2007
DENR - WATER QUALITY
WETLANDS AND STORIAIMMR BRANCH
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~J ~,y TOP OF WALL ~ O Q~`La ~ EX1571NG MASONAFIY ~ ~OC~ jO
CREEK ~z
BM 2003 PG_ 514 _ _ G 0
RETASNING WALL ~~os ~i~
~ PUBLIC LANQ & ,Np & GREENWAY - M
20' PRIVATE- - WETLANDS gM 2002 PG ~2 PG 129 y~
DRAINAGE EASEMENT BM 2003 PG 514~..~~ - cuss °a^ ~ ~ '9<< oZS
--pM 2003 PG 514 gg.44' ~2 iz^ wr-anr j\j l
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- -N05'47'14°W 23 - ~ 2 ~i3~ PUBLIC LAND & GREENWAY - RuN-oFF FROM tuP-RAP LEVEL SPREA4ER TO Q~SCHARGE & /i %i ; SITE
~z~, BM 2003 PG 514 - sHeEr F~ow ro ~Pa~w suFFe~ ~ \ r\ sz, TREYBR OOKE
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_ ~ MIRAFI 140 FILTER FABRIC }
_ ~ 109'X3'WIDE R[P•RAP WIDE - = F'~?IP-~1~ ~EV aREADER 0
_EVEL SPEADER ALONG TOE OF WALL. VICINITY M NOT TO SCALE Y MAP
` - - ~ ~ \LEVEL SPREADE ~ I \~~N~? RE ANI~GRPtA L NOT TO SCALE 'CAS a
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Q~ ~~~'~~o ~ s, ~ ~q I ~ 0
RETAINING WALL 1 1I jo S • O 'L
i ~ 0'x20' ~OF A ~v~. A~°~~ ~
PA TI O
BM 20 33PG 514 ~ ink 1 28 ~
J ' 1 ~ ~ - -1(~' X 3' WIDE
W, 1 ~Mj 2 Sl~RY cn FRAME & ~~a2 / /RIP-RAP 2 / E 1 _ LEVEL SPREApEI~
1I ~ , BRICK ~ Q~
1 ~ 1 HousE ~o o' ~ ~Y'~/
~ ~ ~ ~E~-i'~ NEUSE RIVER
N fp N~ ~o \ ~ BUFFER Town Hall Gardens Lot 31 & t31&32
1 R,~ 9 \ ~ BM 2003 PG 514
~o ~ ~ o mss, Lot 31:
1 ~~9. r ~ ti ~ S~os~ ~ •~d Q=CIA Rational Method ~d
1 ~ U~ Y ~ / S ',T. 1 O 1 O ~ j ~ .O ~ ` 2. a' Rte- j ~'F`~F`~'f'~ ti`~~ MASONRY 33 SF of Impervious Surface ~ 2.a' spy o- 'S~~ RETAINING WALL 45 SF of Total Drainage Area ~ SF C= 33 sf/45 sf = .73 vface from Wall Impact in Zone 2
e Mea in Being Impacted in Zone 2
1 M U1 s ~ 1 1 ~ /
1 ~ , / / Q =CIA =(.73)(7.22)(.001) .001)
~Q PG~~ ~ Q= .005 CFS additional flow ~ ~ ~n. / ~ Lot 32 I flow from wall impact on Lot 31
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,y~.. .d
G. ~ ~ ~ g6 6~~ I ~ Q=CIA Rational Method ~o ~ , ~p'E 90 SF of Impervious Surface oe`~P~ 22" \ 791 SF of Total Drainage Are ~ C= 90 sf/791 sf = .11 vface from Wall Impact in Zone 2 i N-o V 7
APPROX. LOC. OF / ~,o~~ ge Area in Being Impacted in Zone 2
UNDERGROUND POWER LIf~E'^, a~`~ WHICH REFLECTS THE ~ OF ~ / ~ 1 O L~ ~ 1 1J 5 '
~ o Q =CIA =(.11)(7.22)(.018) 018)
10' EASEMENT. / B~ \ Q= .014 CFS additional flow ~Q~ flow from wall impact on Lot 32
BK 20Q3 PG 514 STATE H1J V ?J~ ~~l V ~i
EXISITNG PUBLIC ~0~ R/W c O~,p ~ \ s,
A
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LEGEND SITE PLAN - L N -LOTS #31 & #32
O EXISTING IRON PIN SCALE:
ELECTRIC PEDESTAL
Q S~W~R CLEAN OUT
A/C UNIT
EB WATER M~'TER ~~1 NpV
TELEPHONE PEDESTAL
GAS MEf~R 200?
~tiu~~s 2~P~~,oNE ~d~429 ~
CABLE N PEDESTAL iry M
RIP-RAP PAD LEVEL SPREADER a2S ti
RIPARIAN BUFFED
NOTES: 4
1. TCITAL AREA WITHIN ZONE 2 IMPACTEp BY R~T'AINING WALL EQUALS 45 SQUARE FEET, ON LOT #31. VENTURE ENGINEERING, P 0 314 WEST MILLBROOK ROAD SUITE 005 J, P.A.
005 ~
2. TOTAL AREA WITHIN ZONE 2 IMPACTED BY R RALEIGH, NC 27609
RETAINING WALL EQUALS 791 SQUARE FEET, ON LOT #32. 99,{-M~A~p'~ PHONE: [phone] FAX: [phone] O
3. REFERENCE PLAT ENTITLED "TME GARDENS Cd TOWNHALL ~ ~i~'~~ E-MAIL ADDRESS: MMAGRATH@VENTURE-E.C0 DATE: NOVEMBER 5, 2007 SCALE 0301 v
CQMMONS PH.2" BY ELINBURG LAND SURVEY COMPANY, P.A. DATED .-E.COM
DECEMBER 19, 2002 RECORDED IN BM 2003 PAGE 514.
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TQ~1V~N HALL, LL COMMONS - LfJTS #31 8z #32 DES: TLH ITAL.: x
DRAWN; TLH HORIZONTAL: DRAWING NUMBER 0
1 SUGAR BUSH RC1~D, SUITS 4Q0 MORRISVILLE, NC ,~=zo~ APPROVED: MJM
VERTICAL:
2~0~ s F~LEI
N/A U-i V
El~h~, I~OF~TI~ CAROLINA 27612
RETA~1*~T~1 919-781 ~ 195 zC,,~-~ STING WALL SITE PLAN W/ Lij n
~.TE 2 BUFFER IMPACTS 0
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