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STA 9+47.92,,40' LT
CONNECT TO EXISTING CATCH BASIN
RIM=410.15
I.E.=403.80 (EXIST. 12- E)
I.E.=403.80 (EXIST. 18",
W)
I.E.=403.80 (NEW 12" CPEP, E)
244'Firi
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RE"MOVE EXISTING
20"F
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RE —GRADE TO
STA 8+23-4SHOULDER LE)/EL
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29
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INSTALL'
CATCH BASIN NO. 22 TYPE 2-48
(SEE C.O.R. DETAIL NO. B-01E & BR-02)
RIM=417.4 (ADJUST NEW RIM TO GRADE)
I.E.=405.68 (NEW 12" CPEP, E&W) CLEARING LIMiTS
LE =41C.0 (NEW 12" CPEP, N) (TYP)
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FILTER FABRIC SILT
36"Maple C�
TCH
FENCE (SEE DEJAIL"I'll,
SHT. 18) (TYP)
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30"X, Ider
40,"Alder
24"Alde'r
AWA
06
CONSTRUCTION SEQUENCE
1.
HOLD THE PRE -CONSTRUCTION MEETING.
OBTAIN A DEMOLITION PERMIT FOR EXISTING HOUSES.
2.
FLAG OR FENCE CLEARING LIMITS.
3.
POST SIGN WITH NAME AND PHONE NUMBER OF CONTACT PERSON.
4.
INSTALL CATCH BASIN PROTECTION ON EXIST, CB'S ALONG NE 4th ST.
5.
GRADE AND INSTALL CONSTRUCTION ENTRANCE(S).
6.
INSTALL PERIMETER PROTECTION (SILT FENCE, BRUSH BARRIER,
ETC.).
7.
CONSTRUCT SEDIMENT POND AND DOWNSTREAM DRAINAGE SYSTEM.
8.
GRADE AND STABILIZE CONSTRUCTION ROADS.
9.
CONSTRUCT SURFACE WATER CONTROLS (INTERCEPTOR DIKES,
PIPE SLOPE DRAINS, ETC.) SIMULTANEOUSLY WITH CLEARING AND
GRADING FOR PROJECT DEVELOPMENT.
10.
MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH
CITY OF SEATAC STANDARDS AND MANUFACTURERS
RECOMMENDATIONS,
11.
RELOCATE SURFACE WATER CONTROLS AND EROSION CONTROL
MEASURES OR INSTALL NEW MEASURES SO THAT AS SITE
CONDITIONS CHANGE THE EROSION AND SEDIMENT CONTROL IS
ALWAYS IN ACCORDANCE WITH THE KING COUNTY EROSION AND
SEDIMENT CONTROL STANDARDS,
12.
COVER ALL AREAS THAT WILL BE UNWORKED FOR MORE THAN
SEVEN DAYS DURING THE DRY SEASON OR TWO DAYS DURING THE
WET SEASON WITH STRAW, WOOD FIBER MULCH, COMPOST,
PLASTIC SHEETING OR EQUIVALENT.
13.
STABILIZE ALL AREAS THAT REACH FINAL GRADE WITHIN SEVEN
DAYS.
A PORTION of the N.E. 1/4, SECTION 15, TOWNSHIP 2.3 N., RANGE 5 E., W.M.
=J -------
?7740' L;-47H AV NI 447.
TA 6+54.87
STA 0+40,5,V,4 T HOOUAM, A W, NE .7
11 t INSULL:
BASINO21-TAT
o W/ SOLID t0VF-R7 —MOVE
100. /4 Of
---------------
0
6' WIDE RIP RAP
EMERGENCY WEIR
SPILLWAY
OUTLET RISER
(SEE DET SHT. 18)
A DU 1,
-S B
%01 STIEVE/V
0* WAS& I
IA
UN-
0677
VVIIH I-ILILK FAbHIU UN
EQUIVALENT DIVIDER
SEDIMENT
POND
REQUIRED
SURF. AREA:
1976 SF
SURF. AREA PROVIDED:
2015 SF
TOP: 77'
x 43' @ ELEV.
423.0
W. L.. 65'
x 31' @ ELEV.
421.0
BOT: 38'
x 4' @ ELEV.
416.5
3:1 SIDE
SLOPES
(SEE DETAIL SHT, 18)
W
-ASj&&
'F � rWA
No!- 20734 wCcS�QNAA/
L
EXPIRES: 3/1/2006
T-
-N—S-TREF
EXISTING TREES
TREES TO BE REMOVED -:/?N40"Fir
CLEARING LIMITS v I "A 04-071
amlb.-
---------------
T S
lot
ROAD
LE* A S EV' r* N 7
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8
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[DOL.
3 0
30'
PROPOSED CONTOUR ----------------- +2-2
EXISTING CONTOUR ---------------------------------------------------- _ ... 4-3-4-
FILTER FABRIC SILT FENCE
TEMP, INTERCEPTOR DITCH
R-323110
F FR. C kri fz, F—',4 SEW
REVISION
to ---T- 04-
BY I APPR. I DATE
GRAPHIC SCALE
0 20 40 80
ENGINEER:
RECOMMENDED FOR APPROVAL
DA TE: 3 -d-S7-05
13Y- DATE.•
BY.- DATE:
13Y• DATE:
Im
( IN FEET )
I
IE: 1%,*T rr c)
1 inch =
40' ft.
I
DEPARTMENT OF
PUBLIC WORKS
TE MP, EROSION
CONTROL PLAN
JA F F
FNGINFERING
JERICHO
PLA T
9419 South 204th Ploce
DESMED: Jjj
DATE: 8/10/04
FILE NAME:
Kent,
WA. 98031
DRAM: iii
Phone No.
(253) 850-0934
CHECKED: iii
SCALE: 1" 40'
FIELD BOOK: PAGE:
Fox No.
(253) 850-0155
APPROVED: DIRECTOR OF PUBLIC WORKS
SHEET: 1-1 OF::22
S #C0 A N Nrn APR 2 2 \ 1� 4 , I zp .>.;I/ 6.2