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coterra
ENGINEERING PLLC
6413 Phinney Ave North
Seattle, Washington 98103
ph 206.596.7115
coterraengineering.com
THE NORTH LINE OF THE S1/2 OF
THE W1/2 OF THE NW1/4 OF THE
NW1/4 OF THE NW1/4 OF SEC 9,
TWP 23N, RNG 5E, W.M.
TYPE I CB\WIT
RIM 333.81
IF 329.11 8" E
IF 329.01 8" W
1 ,-%, 6"
8" I INTO TANK
LF 8" SD
B #8 TYPE
WITH BEEHIVE
RIM 331.08
IF 327.48 6" S
IF 327.03 8" E
RIM 331.99
IF 330.49 8" W
�I
T
APN
092305-9061
00
TR I C&
L LTD P TSH P
ROOF ELEV.
=371.84 EXISTING BUILDING
0)
I
PARTIAL FOOTPRINT
20 20
T
\
GATE rr rii ri rii r
ROCKERY
S88_56' 4"E 7'
--------------------�
SCALE: 1" = 20'
-
-
-DATUM
NDOW
WEL
174.62'
3 9
UN & CAP '
NAVD 88
L D
s L #43 618
RTOR
LEGEND
5 PHASE 1 DEVELOPMENT
TORMWATER DE`iENTION SYS EM
IF 324.00 36" IN It
IF 322.97 36" 0 T
2 CB W� ROUND SOLID
RIM 332.85
IF 326.70 8" S
IF 324.00 36" N
60" TYPE 2
C5. C8IT'
SOLID OCK"I ULNID
M Dj ' '
RI
I20 LF 6" SD ® .0%
14L 8"SD@ 1 6%
CB 6A
48" TYPE 2 B W/ SOLID ID
RIM 333.19
IF 320.34 6" W, 8" NW "Lit
IF 320.19 8" S "
28 F8"S @2.0.
38 F 8" SD @ 1.0%
CB #6
//48 TYPE CB W/ SO ID LID
RIM 333.67
IF 321.87 8" N +E22.00 m+E
� w I 319.52 8" NW,S " ,
o Lu43 LF it
SD @ .0%
w 59 LF 8' SD @ 0%
CB #5
0 4" TYPE 21 CB W SOLID L D
RIM 329.06
IE319.474"E_ .
IF 319.07 8" N,S ,
20 8" SD ® 1.0%
4'H CHAIN LINK FENCE -
THE NORTH LINE OF THE SOUTH 75' APN 092305-9161
OF THE S1/2 OF THE W1/2 OF THE HSIEH INVESTMENTS
NW1/4 OF THE NW1/4 OF THE NW1/4 CB #4
OF SEC 9, TWP 23N, RING 5E, W.M. 48" TYPE 2 CB W/ SOLID LID
RIM 328.30 Rgin
IF 323.85 8" E 1E 323.20 8"-E
IF 319.20 8" N, W
2 DO
RECORD DRAWINGS
REVISION
PERFORATED DRAIN LINES
ON -SITE FLOW CONTROL
BMP (TYP)
CB #11 W/ SOLID LID
RIM 50 RIM 330.47
IF 327.67 8"
20 LF 8" SD ® 1.0%
CB #12 W/ VANED GRATE
RIM -329-50 RIM 330.04
1r�0 IF 328.01 8"
4/9/21
SURVEYED:
DESIGNED: MB
DRAWN: MB
CHECKED: PA
BY
DATE
APPR
APPROVED:
SCALE:
6
APN 722780-1370 0 CLEANOUT
C5.
PERRINE
AREA DRAIN - USE 10"
OO POLYCAST NDS GRATE OR
APPROVED EQUIVALENT
F.F.=31
ALARM 1 2
- - 6 R R_TIE WALL CB TYPE 1 C5. C5.
riiimnmiiirrrirrrriiii
HEATPUMP a 3
48" CB TYPE 2, U.N.O.
Pow[ 48" SDMH, U.N.O.
METE[ Gov
F DOWNSPOUT CONNECTION
C5.
- 375
A ORITY ° [�:3 SPLASH BLOCK
ROOF ELI
9 � -.-
rrr 4" STORM DRAIN
1 rii
/ EXISTING -f - STORM DRAIN MAIN
a FOOTPRIN
i
NOTES
° °°:
rrr;
1.
SEE SHEET C1.0 AND C1.1 FOR GENERAL NOTES, GENERAL STORMWATER NOTES, AND
GENERAL SANITARY SEWER NOTES.
ROOF ELEV.=3
HT:=
2
ALL WORK SHALL BE IN ACCORDANCE WITH CITY OF RENTON STANDARDS AND
'rr�ilrrr air
REQUIREMENTS.
3.
STORM DRAIN (SD) PIPE SHALL BE PER COR STANDARD PLANS 220.10 AND 220.20
=mac - - =
(DETAILS 4 AND 5 SHEET C5.4). CONTRACTOR CAN SELECT FROM PVC ASTM D3034
_
SDR 35 (GREATER THAN 3 FT OF COVER), LCPE (GREATER THAN 2 FT OF COVER) OR
D
CITY APPROVED MATERIAL UNLESS OTHERWISE SHOWN. SD PIPE WITH LESS THAN 2 FT
OF COVER SHALL BE DUCTILE IRON PIPE.
4.
FOR ALL CATCH BASINS WITH GRATES PROVIDE PAINT STENCIL WITH "DUMP NO WASTE
F.F.=345.82'-
DRAINS TO LAKE" OR APPROVED STORM DRAIN LABELS PER EVERGREEN STANDARDS.
SUBMIT TO OWNER FOR APPROVAL PRIOR TO INSTALLATION.
5.
FOOTING DRAINS SHALL BE CONNECTED BY TIGHTLINE TO SITE STORM DRAINAGE
ROOF ELEV.=37�
DOWNSTREAM OF DETENTION FACILITY.
HT: =I-
6.
SEE SHEETS C5.3 TO C5.6 AND C5.8 TO C5.9 FOR DRAINAGE DETAILS.
CB # SQUPI.QOyfVIM(,,
RIM 339.06
RIM 339.17 IF 335.82 6" N
IF 336.57 6" NIF 335.81 8" S
IF 336.52 8" E
IF 336.51 6" S ROOF ELEV.=379.08'
cj'� 1 HT:=34.0'
TO EX P4f S6 \ nn uro SSC
1 TOG RIM 340.05
- - - it zz� n c" ni
37 LF 8" SD ® 1.0% IF 335.07 8" N, S
FOISQD §T , �q BYPASS
SS
SSM LS 4 �`�
�UTH LINE
1. o CB V14 W/ SOLID LID
RIM 336.29 RIM 336.13
1" 333.20 IF 333.53 8" N
IF 333.21 8" W
1988
1 »=20' HORIZONTAL- NAD NAVD1983/1991
ONE INCH DATU M
AT FULL SCALE
IF NOT ONE INCH
SCALE ACCORDINGLY
EXISTING HOUSE
PARTIAL FOOTPRINT
LUINJINuuIIUIN
RECORD DRAWING
THE INFORMATION ON THIS DRAWING
INDICATES CHANGES MADE TO THE
CONSTRUCTION DOCUMENTS BASED
UPON UTILITY AS -BUILT SURVEY
PREPARED BY DAVID EVANS &
ASSOCIATES, INC., DATED 3/23/21, AND
TRANSFERRED TO THE REPRODUCIBLE
DRAWINGS BY THE ENGINEER.
+ CITY OF
RENTON
Planning/Building/Public Works Dept.
UTILITY CROSSINGS
O
PIPE 1
IF
PIPE 2
IF
1
327.87
(8"
SD
NW)
325.68
(8"
SD
W)
2
326.20
(8"
SD
W)
327.67
(8"
SD
N)
3
327.15
(8"
SD
NW)
324.94
(8"
SD
SW)
4
333.43
(8"
SD
SW)
329.42
(8"
SD
SE)
R-408534
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
WILLOWCREST TOWNHOMES
EDMONDS AVE NE, RENTON, WA
STORM DRAINAGE PLAN
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7/29/19
DRAWING NO:
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