HomeMy WebLinkAboutD-349707r-
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"..,.Madsen INSTALL TEMPORARY YPASS DAM ��ETRO
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SCALE 1 20 Feet =
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PROVIDE SECOND
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DAM AND PUMP, _
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COLLECT ` - - - -'
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CONSTRUCTION NOTES
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1 . PIPE INVERT ELEVATIONS TAKEN FROM PRELIMINARY SITE
._
LOG DROPS
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---------
PLAN, NEW LIFE CHURCH, WEST SIDE IMPROVEMENTS.
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1 20 -'
2. SEDIMENT LIMITS AND BASIN BOTTOM ELEVATIONS ARE
2H:1V
APPROX. THE CITY MAY ADJUST THE SEDIMENT REMOVAL LIMITS
AND DEPTHS AS NEEDED.
BYPASS PIPE INLEL
24 "CMP IE =121.1
est ���
1 1 6
/ `—
/
REMOVE SEDIMENT TO BASE GRADES SHOWN
3. TEMPORARY BYPASS DAM SHALL BE WATER TIGHT SO BASIN
OR TO TOP OF RIP -RAP ON SIDE SLOPES.
CAN BE DRAINED AND SEDIMENT CAN BE DRIED OUT.
/
HAND DIG IF NEEDED TO IDENTIFY RIP -RAP.
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BOTTOM OF BASIN \\ I i
` APPX. EL 113 \ \ i
DO NOT OVEREXCAVATE SIDESLOPES.
USE SMOOTH BUCKET, NO TEETH.
4. FISH RESCUE IN THE SEDIMENT BASIN SHALL OCCUR
IMMEDIATELY AFTER THE BYPASS DAM IS INSTALLED.
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UTILITY EASEMENT
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SEDIMENT LIMITS APPROXIMATE.
SEDIMENT DEPTH APPROX 4 TO 6 FEET.
See Note
ACCESS BASIN DOWN
THIS SIDE ONLY
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24 "CMP BYPASS PIPE
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LOCATION NOT VERIFIED
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12U
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EED AND STRAW
MULCH
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DISTURBED
\ DISTURBED SLOPE AND
ACCESS ROAD
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\
AFTER BASIN CLEANING
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x3' CONS. BOX CULVERT
J
OVERFLOW SPILLWAY
IE = 117.86
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Y\ \ %
NO
UTILITY EASEMENT
See Note
ACCESS
F ROM r
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IS SIDE
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-
24 "CMP BY ASS PIPE ' \
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LOCATION OT VERIFIED 1 36" CMP INLET
�\I IF = 115.81
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BYPASS PIPE OUTLET
24' CMP ;— \��
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GRA — `-
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IE = 116.12 \
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' - -_ �EL ACCESS_R�A
OVERFLOW CH
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CMP LEf
Ne<
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N
�� OVERFLOW
` E6= 114.47U
SPILLWAY
-'� -SR_
=116.8
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`\�� X090 `
UTILITY EASEMENT FROM NEW LIFE CHURCH 8/10/09
SEDIMENT BASIN CLEANING DRAWING
AS —BUILT NOTES
1. 2009 - POND BOTTOM
WAS WET AND MUCKY.
KING CO. RECORDING # 20091007000046
EXCAVATOR STAYED ON PAD OF SEDIMENT AND REMOVED MATERIAL TO APPX. EL 113
BY JUDGING THE DEPTH SHOVEL WENT DOWN. APPROX 1000 CY REMOVED.
BOTTOM WAS Too MUCKY
TO WALK ON AND SURVEY AFTER WORK WAS FINISHED.
2. 2010 - POND CLEANED
TO APPX EL 113.
BOTTOM WET, MUCKY
DUE TO WATER GETTING PAST DAM OR GROUNDWATER.
3. 2011 - POND CLEANED
TO APPX EL 113. BOTTOM WET, MUCKY DUE TO GROUNDWATER.
J.
Q° 0
D= 349107
2013 Cleaning
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RECOMMENDED
FOR APPROVAL
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sum o:
KRPCA3L NAVJ 1980
xoR¢oxrw xm HCC /i9si s T
ocs�cxeo� AS NOTED �p r— CITY OF
DC "'R
6/10/13
nE�nmoro
MADSEN CREEK SEDIMENT BASIN
aY Daniel Carey
6/10/13
Y�Fs(_•
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O.,
DC
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RENTON
oxE xex DATUM
CLEANING PROJECT o�
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Punning /Dui ding /Public Works Dept.
SEDIMENT BASIN
BY
- NO.
REVISION BY DATE APPR w°emm:
�F NOT ONE INCH
wac ucoxoixcr
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