HomeMy WebLinkAboutTED4003246.15REVISIONS
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Sf C. 15, TWP. 23 N., RNG. 5 E., W.M.
1 HAC.1 Cf \ FOR SECTION C-C-90
SEE SHEET C19 v 3 +
4
8
ORIFICE CONTROL STRUCTURE EMERGENCY OVERFLOW ENERGY DISSIPATION OUTFALL NOTE:
C
CB#19, (TYPE 11-54"0) STRUCTURE CB#21, (TYPE 11-54"0)
W/SOLID LOCKING LID CB#20, (TYPE 11-48" o) W/SOLID LOCKING LID FOR WOOD, BLACK VINYL CYCLONE,
AND SPLIT RAIL FENCE DETAILS SEE
RIM-39+� ",5.26 A - W/BEEHIVE FRAME RIM=388.e LANDSCAPE ARCHITECTURAL PLANS
LE. 12" SE=9919:$9 39e• e>?-A Es RIM=393:6-3g3U 4,8• LE, 12" NE ---moo- :ec A•�
I.E. 12" SW=396.-68 - A. I.E. 12" NE=383-00,Ig797 (SEE SHEET C21)
(SEE SHEET C20) I.E. 12" SW=388.9- 4•0.
(SEE SHEET C21) :67 95
4.P>• PSl r4 12 pl;
71"-44 —jP1
NOTE: ROCK LINING SPEC,
ROCK LINING AT INLETS INTO POND (2 LOCATIONS) SHALL. BE
QUARRY SPALLS WITH GRADATION AS FOLLOWS
• PASSING 8-INCH SQUARE SIEVE 100%
• PASSING 3-INCH SIEVE : 40 TO 60% MAXIMUM
• PASSING 3/4—INCH SIEVE : 0 TO 107o MAXIMUM
20 0 10 20 40
GRAPHIC SCALE
SCALE: 1" = 20
VERTICAL DATUM
CITY OF RENTON, NAVD 88 CONTOUR INTERVAL = 2'
BENCHMARK
BASE:
KING COUNTY POINT # RENT1852:
FOUND PUNCH IN 3 KING COUNTY SURFACE BRASS DISC AT THE STREET
INTERSECTION OF NE 4TH STREET AND 148TH AVE, SE MARKING THE
NORTHWEST CORNER OF SECTION 14, TOWNSHIP 23N., RANGE 5E,, W M.
ELEVATION= 454.78 FEET.
SI TE:
SET COTTON GIN SPIKE 19.1' SOUTHWEST OF THE WEST COLUMN OF GATE.
ELEVATION= 407,96 FEET,
BASIS OF BEARING
TRUE NORTH, BASED UPON GLOBAL POSITIONING SYSTEM (GPS)
LAMBERT GRID WASHINGTON STATE NORTH ZONE COORDINATES. A
CONVERGENCE ANGLE OF 00°17658'30.28" COUNTERCLOCKWISE WAS
APPLIED AT A PUNCH MARK IN 3" KING COUNTY SURFACE BRASS
DISC, AT THE STREET INTERSECTION OF NE 4TH ST. AND 148TH
AVE. SE, MARKING THE NORTHEAST CORNER OF SECTION 15,
TOWNSHIP 23 NORTH, RANGE 5 EAST OF THE WILLAMETTE
MERIDIAN, THE NORTH AMERICAN DATUM OF 198311991 (NAD
83/91) GRID COORDINATES WERE FOUND TO BE 180903.998 /
1316622.321 AT THAT POINT THE INVERSE OF BOTH THE SEA
LEVEL CORRECTION FACTOR OF 0.999981824 AND THE GRID
SCALE FACTOR OF 1,000002187 WAS APPLIED TO THE GRID
COORDINATES FOR SHOWN GROUND DISTANCES.
PROPOSED DETENTION POND
CELL 1 (DEAD STORAGE)
386 1, 904 SF
388 + 3.096 SF
5, 000 SF x 2' = 5, 000 CF
2
CELL 2 (DEAD STORAGE)
387 6,264 SF
388 + 7,485485 SF
13,505 SF x 1' = 6,753 CF `
2
BOTH CELLS (DEAD STORAGE)
388 10,785 SF
390 + 13,661 SF
24,446 SF x 2' = 24,446 CF
2 5, 000 CF
6,753 CF Q)
+ 24,446 CF
TOTAL DEAD STORAGE = 36,199 CF
BOTH CELLS (LIVE STORAGE)
390 13,661 SF
393 + 18,594 SF
32,255 SF x 3' = 48,383 CF
2
TOTAL LIVE STORAGE = 48,383 CF
LIVE STORAGE REQUIRED: 47,169 CF
LIVE STORAGE PROVIDED: 4-48-353 CFA B
TOP OF BERM ELEVATION = 394.0
EMERGENCY OVERFLOW ELEV. = 393.. 0
BOTTOM OF LIVE STORAGE ELEV. = 390,0
DEAD STORAGE REQUIRED: 34,515 CF
.3
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DEAD STORAGE PROVIDED: CF
BOTTON OF DEAD STORAGE ELEVATION = 3860
SEDIMENT ELEVATION = 385.0 (1ST CELL ONLY)
CHECKED FOR COMPLIANCE
TO CITY STANDARDS
Date —
Date --
Date
RECOMMENDED
FOR APPROVAL
BY: 4a•
BY:
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EXPIRES: MAY 6, 2007
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LL J 03 (A 5-
PROJECT NO.: 02054
DRAWN BY: TLR/JGC
ISSUE DATE: 03-07-05
SHEET REV.: 06-13-05
DETENTION
POND PLAN
•
.lkn7 96- R-324bolc5 Ili` 2 9 2005