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�--_--.Madsen INSTALL TEMPORARY YPASS
DAM ��ETRO
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SCALE 1 20 Feet =
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CONSTRUCTION NOTES
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1. PIPE INVERT ELEVATIONS TAKEN FROM PRELIMINARY SITE
X.
LOG DROPS
----- —__ \�'
PLAN, NEW LIFE CHURCH, WEST SIDE IMPROVEMENTS.
- �`
120
2. SEDIMENT LIMITS AND BASIN BOTTOM ELEVATIONS ARE
H:lv�
APPROX. THE CITY MAY ADJUST THE SEDIMENT REMOVAL LIMITS
AND DEPTHS AS NEEDED.
BYPASS PIPE INLET
24"CMP IE=121.1 est
16
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REMOVE SEDIMENT TO BASE GRADES SHOWN
3. TEMPORARY BYPASS DAM SHALL BE WATER TIGHT SO BASIN
13_ - =
D
OR TO TOP OF RIP —RAP ON SIDE SLOPES.
CAN BE DRAINED AND SEDIMENT CAN BE DRIED OUT.
\ `i
HAND DIG IF NEEDED TO IDENTIFY RIP -RAP.
`
BOTTOM OF BASIN i
APPX. EL 113 ' ,'
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.
j
UTILITY EASEMENT
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SEDIMENT LIMITS APPROXIMATE.
SEDIMENT DEPTH APPROX 4 TO 6 FEET.
See Note
ACCESS BASIN DOWN
THIS SIDE ONLY
24"CMP BYPASS PIPE
Li
LOCATION NOT VERIFIED
Arcv
120
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3
`� `ass
X
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HYDROSEED AND STRAW
DISTURBED SLOPE AND
�09,\ \� J
MULCH \\ Q �_-
ACCESS ROAD
I
1
AFTER BASIN CLEANING
12'x3' CONC. BOX CULVERT
v
OVERFLOW SPILLWAY
\` \� IE=117.86
UTILITY EASEMENT
�`.
NO A0LESS FROM
See Note
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` T IS
O
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SIDE
`
24"CMP BY ASS PIPE
LOCATION OT VERIFIED ' �� 36" CMP INLET ____
IE—115.81
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c9
BYPASS PIPE OUTLET \\\— �t_ \��
24" CMP
_
— — - - ...... --__
GRAVEL
O
�J
I E=116.12
_ — — _
--_ ACCESS
SS
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{ \�
,.._ ANNEC (dry)
ROAD F
OM S _ _
— ---_ R—
- 36" CMP OU�\LET
169
I =114.47 ��\ �� OVERFLOW
SPILLWAY —
----___
IE =116.8
est
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UTILITY EASEMENT FROM NEW LIFE CHURCH 8/10/09
SEDIMENT BASIN CLEANING D RAW I N G
AS —BUILT NOTES
1. 2009 - POND BOTTOM WAS WET AND MUCKY.
KING CO. RECORDING # 2009100 7000046
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.
p J. Sr
oFw�,
2013 Cleaning
RECOMMENDED
fG0\
SURVEYED: SCALE:
DESICNEDpC
VERTICAL: NAVD 1986
HORIZONTAL: NAD 1983/1991 1►
As NOTED .. ,:. CITY OF
DATE:
6/ 1 0/ 1 3
MADSEN CREEK SEDIMENT BASIN FlELDBOOK:
FOR APPROVAL
RENTON
PAGE:
BY Daniel Carey
6/10/13
DRAWN: DC
CHECKED:
ONE
ONE INCH
DATUM
CLEANING PROJECT DRAWING N0:
BASIN 1
/ RS
AT FULL SCALE Planning/Building/Public Works Dept.
F NOT ONE F
SEDIMENT
BY
'` '�'"*`"' -
N0.
REVISION BY DATE APPR APPROVED:
RS
SICALE ACCORDINGLY
SHEET: x OF: 2
D
3497