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DETENTION FACILITY DATA:
DETENTION POND
MINIMUM TOP OF POND EL=410.0
100 YR WATER SURFACE EL=5-409.31
EMERGENCY OVERFLOW EL=49948-409.36
STATIC WATER SURFACE EL= 405.66
DETENTION POND VOLUME REQUIRED = 4,539 C.F.
DETENTION POND VOLUME PROVIDED = 5,2:79 C.F.5,219
LENGTH TO WIDTH RATIO= > 3:1
ELEVATION
AREA (SF)
INCREMENTAL VOLUME
TOTAL VOLUME
05.66
�.'1638
0
0
406.0
48&& 962
393- 400
393- 400
407.0
+341.1,362
++++ 1,162
1,562
408.0
1 1,8681,814
+7-0 5 1,588
3, 1-1 3,149
409.0
*-,+682,326
� 6.a2,070
-5" 9 5,219
ASBUILT DETENTION POND PLAN AND SECTIONS
OF
DALPAY SHORT PLAT
A
PORTION OF
THE N.E. 1/4 OF THE S.E. 1/4 OF
SECTION
4, TOWNSHIP
23
N., RANGE 5
E., W.M. CITY OF RENTON, KING
COUNTY,
WASHINGTON
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RIP RAP PAD DETAILS
ALL RIP RAP PADS SHALL BE MIN. 4' WIDE x 8' LONG x 1' DEEP,
USING THE GRADATION SPECIFIED BELOW:
RIP RAP
SHALL
BE IN ACCORDANCE WITH
SECTION 9-13.1 OF THE WSDOT/APWA STANDARD SPECIFICATIONS.
RIP RAP
TO BE
REASONABLY WELL GRADED WITH ROCK GRADATION AS FOLLOWS:
PASSING
8 INCH
SQUARE SIEVE 1007
OR MAXIMUM STONE SIZE 8"
PASSING
6 INCH
SQUARE SIEVE 40-607
OR MEDIUM STONE SIZE 6"
PASSING
2 INCH
SQUARE SIEVE 0-10%
OR MINIMUM STONE SIZE 2"
/ a
425 ' / 2%, F
I
420 I H
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415 ) '�
/ I
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410 I � i
I I CB#4
3
405
400
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2&
�20
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395
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/ ASSUMED HOUSE
FOOTPRINT (TYP.)
390
/ 12' WIDE (TYP.)
/
/
GRAVEL ACCESS ROAD
j
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12% MAX. SLOPE
/
\
385
PER COR STD PLAN
\\
234.50 ON SHT C11
j
380
375 -
'
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I ATER CONTROL POND
I
--
---------------
IGN SSD PLAN
345ER
I 3 N 11
.HEET C
_
i
NOTES:
1. ALL PIPES, STRUCTURES, AND FACILITIES
PRIVATELY MAINTAINED UNLESS
OTHERWISE NOTED.
2. DETENTION POND SHALL BE BUILT IN
ACCORDANCE WITH CITY OF RENTON
STANDARD PLAN 234.00 ON SHEET C11
3. REFER TO SHEET L3 FOR TRACT B
LANDSCAPE PLAN.
PROPOSED POND FENCING PER STD
PROPOSED ,' ,� 3:1 I B LOT LINE PLAN 234.40 ON SHEET C11
/ LOT LINE
12+00 12+20 -- -- - \
\ ------ _
OIL/WATER -�' -
SEPARATOR `---- �� -----
r ---- I \\ `11 c14
SEE DETAIL
SHT C9 \
�0' / 410 N
' CB#2
FLOW CONTROL---/
STRUCTURE PER i `��- 3.1
COR STD PLAN .. i� --- - -----408----------
237.00 ON
416 \ / �i SHEET C11A / ADO IE-4G&.-& F05.66 fYj
O
41�� �/ i `� ' POND BOTTOM
z \ ti� <' , EL - 405.2
` I E= 405.60 o`O
�\ REA=504 SF) I /
g/O TRACT C \� �� EMERGENCY
\ OVERFLOW - i i 0
TVAT`E GROWTH �� STRUCTURE - ,� �� �O/ ,
PROTECTK)N RE O �\ `� PER DETAIL
o ON SHEET C11
11/
> -1k, A �I1
\ \ 406 \ \
\ \ 40�¢09 .8
o TRACT B
420 \ \ \ 40.2 \ \ B / DRAINAGE FACILITY
AIR 0
\ \ \ 40'1-0
DAYLIGHT PIPE ATE EL- &\ TIrWTI IKIC C4Jnl I RC I nrnTCn
410 ��� AND WALKED WITH CITY OF
\ \ O RENTON STAFF AND \ -� 0
�9r 0 \ \ O O APPLICANTS ARBORIST PRIOR / \ O /
9 \ TO CONSTRUCTION.
405 \ \ NOTE: ARBORIST SHALL BE �\
\\ \ \ PRESENT DURING EXCAVATION �\ \ O - R-409734
9° � O AND INSTALL STORM LINE 406
400 �� ' -WITHIN DRIPLINE OF TREES.
PROVIDE PIPE ANCHORS HORS \ \ r n \ IN COMPLIANCE WITH CITY OF RENTON STANDARDS
o PER DETAIL ON SHEET 11 B A
Y;�388.
INSTALL LL GABION ENERGY \
\ \ DISSIPATER PER DETAIL \
\ SON SHEET 11 B �
40+00 41+00 �
FLAGGED EDGE
OF STREAM
BENCHMARKS:
FOUND 1.5" BRASS DISK WITH 2" BRASS DISK WITH PUNCH MARK
PUNCH MARK IN CASE AT UNION IN CASE AT THE INTERSECTION OF
AVENUE NORTHEAST AND NE 19TH NORTHEAST 19TH STREET AND 1 ASBUILT
STREET, KNOWN AS CITY OF DUVALL, KNOWN AS CITY OF
RENTON CONTROL POINT #716 RENTON CONTROL POINT #1996 NO. REVISION
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SURVEYED:
TSL
DESIGNED:
DSC
DRAWN:
DSC
EN 1 1 /19/21 DID CHECKED:
DD
BY DATE AP P R APPROVED:
DID
SCALE:
1 "=10'
ONE INCH
AT FULL SCALE
IF NOT ONE INCH
SCALE ACCORDINGLY
VERTICAL: NAVD 1988
HORIZONTAL: NAD 1983/1991
DATUM
VR CITY OF
RENTON
Planning/Building/Public Works Dept.
ASBUILT DETENTION POND PLAN AND SECTIONS
DALPAY SHORT PLAT
DALPAY PROPERTIES, LLC.
4033 N.E. SUNSET BOULEVARD
RENTON, WA 98059
Q
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0-
00
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r
00
=
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DATE:
9/2021
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m
FIELDS/K
PAGE:
DRAWING NO:
.
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SHEEP: C7 OF: 18
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