HomeMy WebLinkAbout1457.101
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1. FILL EXISTING 24" STEEL PIPE & DRAIN M.H.
WITH SAND OR CONCRETE.
2. NEW SPILLWAY CHANNEL -ROCK SURFACE a��� 0
(3' DEEP, -SIDS SLOPES 2:1)
3. RIPRAP TO BE MIN. 2'-0" DEEP AS DIRECTED IN 0 -4
FIELD, AT 42" CULVERT OUTLET AND SPILLWAY. RIPRAP 21$ AIL v
TO BE PLACED CLASS B CONCRETE BASE.
IL
4. REMOVE EXISTING STEPS AT NEW SPILLWAY AREA.
5. CROSS-SECTION AA, BB, AND CC ARE ON SHEET 11. C/I
PROPOSED NEW SEATTLE---
CITY LIGHT POLE J
1�
RELOCATED SEATTLE
CITY LIGHT LINE
----
24"0 PIPE INVERT ELEV. 214.50 (OUT)
TRACT IIC11 , 201 A ir
e�
3
O
N
k
Z
CHAIN-200# CAPACITY -SLACK WHEN GATE
IS CLOSED -CHAIN IS WELDED TO THE M.H. 1
FRAME
TYPICAL MANHOLE 24" 0 PIPE FROM STORM DRAIN
FRAME & COVER SYSTEM
�p'ELEV. 214 STAINLESS STEEL
, -- ANCHOR BOLTS
6" MIN. �� ELEV. 213.0 1
72"0 I.D.CONCRETE MANHOLE
.. UM"NUM)
0
III
24'0 CONCRETE PIPE
FROM -RETENTION POND 18"X18" CROSS (AI...U,M1 UMW'
WATERTIGHT GROUT
I` / EXISTING 42"o PIPE.
INVERT ELEVATION 206.3
I.E. 208.0
— _ j ELEV. 204,30
STEEL PLATE WITH 12.4"
ARMCO MODEL 150 ELEVATION 202.30 DIA, ORIFACE
TURNOUT GATE /
DIAMt ;
12" COMPACTED DEPTH OF GRAVEL BASE
FLOW RESTRICTOR / 01 L POLLUTION CONTROL MANHOLE
DETAIL A
N T S
CHANGED 24" CROSS TO 18".
OPIFACE REVISED TO 12.4" DIA. 4-16m7 K.T.
REVISED PER CITY OF RENTON REVIEW UAN.'79 KAT
REVISIONS DATE APPROVAL
WITH 20--30"0 HELICAL PIPE @ 1.5% MIN.
SLOPE
2'--0" MIN.
3 MIN.
RIPRAP
C/L OF S 23RD ST.
DTH_ OF SPILLWA`!
23 ELEV. 213.0 3�
1
�— 1'-O" MIN. ROCK (MIN. 4" FACE)
MAXIMUM DESIGNED WATER SURFACE IN POND
(SEE PARAGRAPH 6.14)
TYPICAL POND OVERFLOW SPILLWAY
DETAI L C
NO SCALE
♦ i --w.0 140,10,�v 4014W
DETENTION
POND
GRADING
SCALE I11= 2 d
611
( SEE SECTIONS ON
SHEET 1 1)
5/8"
DIA. BARS TO EXTEND
SPLIT
C.M.P.'
3
3" INSIDE PIPE AND
WELD TO PIPE
COUPLING-,,
TOP AND BOTTOM.
2'-0" MIN,
SIDE ELEVATION
—_.214
N
N
`! 216
/r
218
FACE MASK
-"WELD 5/8" DIA. ALUMINUM BARS
AT 3" O.C. VERTICALLY TO
BEVELED C.M.P. AND BOLT TO
I CULVERT WITH SPLIT C.M.P.
SPLIT C.M.P.
COUPLING
END VIEW
REMOVABLE TRASH RACK
DETAIL B
NO SCALE
SERVICE RQAD
•••''••
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