20070945 Ver 1_Stormwater Plans_20070618

Enoch Engineers, P.A.
1403 Hwy 50 South
Benson, NC 27504
Lx. p 0'1- D a 4S
Phone [phone] Fax [phone]
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LETTER OF TRANSMITTAL
DATE: June 15, 2007 FROM: Jason Godwin
TO: Lia Myott
2321 Crabtree Blvd. Ste 250
Raleigh, NC 27604
RE: Adams Products-401 Express Review
EE Project #: 3134
NOTES:
Ms. Myott:
Enclosed are 5 copies of the erosion control plans.
Sincerely,
6)0-? ap-?
Leanna J. Depew
Executive Secretary
Enoch Engineers, P.A.
UIE&RUNRY
JUN 1 g 2007
r+En,sf WATER QUALjTy
Enclosure
v `\,,~1t1t f 1111I1~~/ CA S
NOTE: AN EMERGENCY DRAIN VAL I/E
4 " D ~ 1. EMER GEM C Y DRAIN PIPE. Wow asm a 4CL~ •
• SEA
4 " GPI TE VA ~ I/E Wl TH HA l~l DL E TD B~ P PLACED ~S TO BE INSTALLED TO DRAIN BASIN • 1 7
STORM PIPE-~~~ C-i
~l~l ll~l~ E T PIPE. HANDLE TD BE PERMA l A T TA CHED TO RISER BOX. I N V = 14 7. 9ANEN TL y /HEN NEEDED FOR OBSER VA TION,
~/'fill
47.50 MAINTANENCE, AND EMERGENCIES BEGIN FlL TER FABRIC
~ END OF PIPE/FES
GALVANIZED CORRUGATED STE 14 Ga. 60" DIAMETER 'D STEEL PIPE RIP RAP APRON
r~
ELEV. 157.5 THICKNESS AS CONTINUE FILTER FABRIC p4
PER TABLE BELOW BEYOND RlP RAP APRON
BRACKET 4 :KET 4 PIACES RIP RAP GRA IiEL OD cm I c
36" NP. (SEE ao GALVAN?ZED (SEE DETAIL) 36" SIZED & PLACED Z CO
riNIZED COATED AS PER PLANS & r
36" RCP TABLE BELOW
~K„
.'t Y. F.E.S. s UL CD to
" PVC ORIFICE lNV. 'CE INV. 149.5
~ N ~I a ~ Z o C to
a. ~IYY. 747.5 C'3 OD o
L ~ ~---STORM PIPE ~~$Q s (1.25*Wf) CN .0 ~ T-
z,.
i v~ Z cU E
; t C Ow
U T
W1
(3*Do)
/ 4 GALI/ANIZED 3/" DIAMETER EiER La
THREADED RODS AND NUTS IUTS (Apron Length
/ BOLTED THROUGH CSP.
b = Bouyant Force =water density x volume displaced by concrete riser RIP RAP APRON DETAIL t r a.
V O m cn
Not to Scale o > o
F, _ (62.3 Ibm/ft~3) x (44.4 ft~3) = 2766.0 Ibf MAWTENANCE
INSPECT RIPRAP OUTLET S7RUCNREES AFTER HEAVY RAINS TO SEE IF ANY
" PV ORlFI 0 ;ORIFICE INV.149.5 F =Concrete weight = (150 Ibm/ft~3) x (44.4 ft~3) = 6660.0 Ibf EROSION AROUND OR BELOW THE RIPRAP HAS TAKEN PLACE OR IF STONES HAVE BEEN DISLODGED. IMMEDIATELY MAKE AlL NEEDED REPAIRS TO PREVENT
FURTHER DAMAGE.
p. cl)
Co W
L
~ 3/a" GALVANIZED ROD Q ~ U
BRACKET 4 PLACES ~r
~vp /c~~ n~reri t o
i o O
GALVANIZED COATED N
3/a" GALI/AN1ZE0 WEDGE TYPE ANCHOR
4 TO CONCRETE PIPE (TRUBOLT BY REDHEAD
E C N m
RISER NOT TO S TOP ELEVATION . R DETAIL OR EQUIVALENT) 0 o -mom
O
ro sca~E ~ C
BRACKET DETAIL C
NOT TO SCALE
E 'S w
a
N Z
P'.
Op ~ 0 w
NOTE: A permenanf measuring device shall
be installed on stable materiels to record v0iZ°~°0 0 " -j a>
accurate depth readings for observation and
maintenance purposes. n»Q ~ o0
o oQ= e 0. Q~
J
OZ$ Q
W ~ ~
755.3 Q O V
WQ EL SHELF ~ ~ ~--wa= zoz,az~ cu ~r > i~s,i~a cu-~r
3 3 ELtV 151.0
it ~i -O D
z LL a.
149.5
SHELF zv ~
oz Q
6 MIN 0 0
PERMANANT POOL 149.5 Q
VOLUME a 256,763 CU FT ~xQ 5.00/146.50 n ~ Iw
BOTTOM ELEV 746.00/1 ~O
C~C~L~ONIC p o~
SECTION THROUGH WET DETENTION ~ JU JUN 1 g 2007 W
. SECTION B - B ~ Nor ro sca 7 SCALE o~u+ DENR -'way c.~w ~r..., .
.CIi.nrpg PC I LAW3 AND hi r NUN M; i:~jl X54
m IS 2 A