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ACCESS ROAD
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z EXISTING G OUND
PROPOSED GRADE
EMER ENCY RFLOW
ELEV-
A
PRIMARY
DESIGN W.S. / OVERFLOW
ELEV= 445.00 ELEV =4
- - - - - - -- -- -- - - - - -- ----------f------------- - - -- ----- - - - - -- - - - - - -- ----- - - - - --
B 11 , TYPE 2 —48 "0
"� SD W SOLID LOCKING LID
18
28 LF, 18"0 SD 49 LF, TG = 452.9 2
O S= 0.509 O S= 23.829 IE= 447.92 18 "0 N
IE= 448.75 800 SE
POND OU ET IE= 448.92 6 "0 NE
KRISTAR PERK FILTER. SEE W /TRA RACK IE= 447.92 18 "0 W
DETAIL ON SHEET PN -05 EL EV— 36.25 POND BOTTOM
---- - - - - -- -------------------- -- - - - - -- - - - - - -- ELEV= 435.75 PIPE ANCHOR SEE DETAIL
ON THIS SHEET --
0.5' SEDIMENT
STORAGE POND INLET WITH TRASH RACK
10 LF, 18 "� SD & GABION MATTRESS POOL.
O S =2.50% SEE DETAIL THIS SHEET.
B 16, PE —60to0 t ELEV= 436.25
CO L TR CTURE W DEBRIS GE
=445.
I = .11 8 "'0 N
IE= 436.25 "0 S
11+00 12 +00
PONS CROSS SECTION A -A
SCALE: 1 y =20' HORIZ.
1 " =5' VERT.
yy
POND BERM
ELEV= 447.00
POND FENCE
i
CONCRETE WALL
ELEVATIONS PER
SHEET PN -05 'MERGENCY VERF OW PROPOSED GRADE
(WALL DESIGN PER LEV =4
SEPARATE PERMIT) -- J POND FENCE
\ DESIGN W.S. PRIMARY
\ ELEW= 445.00 OVERF'I�,.O
` ELEV =445
++.� -- -- - - - - -- ---------- - - - - -- -- _------------ ;- - - - - -- ------------------
EXISTING GROUND
„5.
G12 Warkhp Days Be0ore You Dip
811
LWM I" lNOdw9rotnd Loea*n Cw*w
aDOrMatwN
0.5' SEDIMENT
STORAGE
POND BOTTOM
ELEV= 435.75 ------------ - - - - -- ---------------------------- - - - - --
si +oo
POND CROSS SECTION B -B
SCALE: 1 »_20' HORIZ.
1 =5 VERT.
CONSULTING ENGINEERS L L C N
33400 8th Avenue South
Suite 205
Federal Way, WA 98003 •r
MBYL MMY (233) t3h6113
www.eamcivil.com (*25) "7 -"W
Civil Engineering Land Surveying Land Planning
Public Works I Project Management I Landscape Architecture Q
S
ESM JOB #258- 044 -013
—16 LF ; 1V41
O S =6.19%
ICB #22, TYPE 2 -4800
W /SOLID LOCKING LID^
TG= 447.00
IE= 435.18 18 "0 NE
IE= 435.18 18"0 E
B 17, TYPE 2 -48 "0 C6"4
ERFLOW STRU URE w DEBRIS CAGE
= 445.50
IE= 8 "0 SW
455
465
460
12" H.D.P.E. PIPE
450
460
440
INTO UNDISTURBED SOIL
430
455
420
410
450
400
390
445
380
;s
370
440
360
D
12 +60
COLLAR
A
EXISTING GROUND
ORDINARY HIGH Imo-- -- PROPERTY LINE
WATER LINE �
0 +00
A�
6• .
IN'
BURY AS NEEDED
TO MAINTAIN 1 %
MINIMUM SLOPE
IE= 401.00 18 0
W /GABION MATTRESS
POOL. SEE DETAIL ON
THIS SHEET
I�IIII II I���I I)
CONCRETE BLOCK
PROPOSED GRADE
— KRISTAR PERK FILTER. SEE
DETAIL ON SHEET PN -05
IE= 435.25, 18 04
7 LF, 1800 SD
O S =1.07%
B 122, TYPE 2 -48"O
W SOLID LOCKING LID
TG= 447.00
IE= 435.18 WO NE
170 LF, 18" HDPE FLEXIBLE PIPE IE= 435.18 18"0 E
TO BE LAID ON EXISTING GROUND
® A MINIMUM SLOPE OF 1 % WITH
PIPE ANCHORS SPACED EVERY 50'.
MAXIMUM DEFLECTION IS 60' RADIUS.
(SEE DETAIL ON THIS SHEET FOR
PIPE ANCHOR DETAIL)
C WISWIFr% Z'o 1 NTS)
i +oo
POND CROSS SECTION C-C
GALV. STEEL BRACKET, LOOSELY FITTED
22 +00 22 +40
o Fresr suerrtrK
1 EMLY CIEMNP ! CMDw IMAR 9Ua/ITAL
2 PLAN CIINIOE j1
3 Pl1W GLANCE
4 YYLAR SlJl1/ITAL
N0. REVISION
SCALE: 1 =°, HORIZ.
1" =20 VERT.
A
i
�V05 '1% {:x.11'!?.�j'
rip rap
2 +00
mattress
460
450
440
430
420
410
400
390
350
370
360
2 +60
gabions (typical)
(size as required)
NOTE: If pipe discharges
' perpendicular to stream, or
gabions are located within
the ordinary high water
mark (OHWM) or will be
0 subject to abrasion from
upstream sediments, a
four -sided gabion basket
located outside the OHWM
should be considered.
NOT TO SCALE
*PIPE DILATION CALCULATION K FOR P
WITH EXTENSIONS AS REQ D OR H EC ED 0 COMPLIANCE TO CITY STANDARDS
SECTION A —A APPROVED EQUAL. BL = L(AT) S = (170') (50' F) (67x 10-� = 0.6' < 5' OK ;0&1�6
AL = PIPE DILATION (FT)
PIPE ANCHOR L = LENGTH OF PIPE (FT) o 41- S
AT = TEMPEATURE CHANGE
3808 8 NOT TO SCALE S = EXPANSSION COEFFICIENT
67x10_' IN /IN 'F (WWW.ENGINEERINGTOOLBOX.COM)
am 4 SURVEYED: SCALE: GATE
sue. OW
� 4 D HOR k- W; 9W/, 99, G R E E N L E A F 1 2/30/201
DTY 0
ESM 14 POND A PLAN, CROSS SECTIONS & DETAILS
_ RE \TO\ PONGE
Earl 14
� ONE "�'�' DATUM °�"G
Eslrl 14 CHECKED:
Aim AT FULL SALE Planning /Building /Public Works Dept. N -02
IF NOT ONE INCH
B Y DATE A P P R � "`�°"�`Y UTILITY PERMIT # 14004398 � z � °�
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12" H.D.P.E. PIPE
435 CONCRETE BLOCK KEYED
INTO UNDISTURBED SOIL
O
AS SHOWN.
6" MIN.
430
1 " THREADED GALV. STUD
;s
•
GALV. THREADED ROD COUPLING
••
ANCHOR SHALL BE 1 " GALV.
2' MIN.
.
SCH. 80 STEEL PIPE DRIVEN
•�
'
TO REFUSAL (< 1 INCH
425
• - .
PENETRATION OVER 1 MINUTE
SUSTAINED DRIVING WITH
A 90 LB. JACK HAMMER).
MIN. 5' PENETRATION. AT
2 x PIPE DIA
CONTRACTOR'S OPTION, CAN
MIN.
INSTALL CHANCE GALV. TENSION
SCREW ANCHOR, SS5 OR RR8.
22 +00 22 +40
o Fresr suerrtrK
1 EMLY CIEMNP ! CMDw IMAR 9Ua/ITAL
2 PLAN CIINIOE j1
3 Pl1W GLANCE
4 YYLAR SlJl1/ITAL
N0. REVISION
SCALE: 1 =°, HORIZ.
1" =20 VERT.
A
i
�V05 '1% {:x.11'!?.�j'
rip rap
2 +00
mattress
460
450
440
430
420
410
400
390
350
370
360
2 +60
gabions (typical)
(size as required)
NOTE: If pipe discharges
' perpendicular to stream, or
gabions are located within
the ordinary high water
mark (OHWM) or will be
0 subject to abrasion from
upstream sediments, a
four -sided gabion basket
located outside the OHWM
should be considered.
NOT TO SCALE
*PIPE DILATION CALCULATION K FOR P
WITH EXTENSIONS AS REQ D OR H EC ED 0 COMPLIANCE TO CITY STANDARDS
SECTION A —A APPROVED EQUAL. BL = L(AT) S = (170') (50' F) (67x 10-� = 0.6' < 5' OK ;0&1�6
AL = PIPE DILATION (FT)
PIPE ANCHOR L = LENGTH OF PIPE (FT) o 41- S
AT = TEMPEATURE CHANGE
3808 8 NOT TO SCALE S = EXPANSSION COEFFICIENT
67x10_' IN /IN 'F (WWW.ENGINEERINGTOOLBOX.COM)
am 4 SURVEYED: SCALE: GATE
sue. OW
� 4 D HOR k- W; 9W/, 99, G R E E N L E A F 1 2/30/201
DTY 0
ESM 14 POND A PLAN, CROSS SECTIONS & DETAILS
_ RE \TO\ PONGE
Earl 14
� ONE "�'�' DATUM °�"G
Eslrl 14 CHECKED:
Aim AT FULL SALE Planning /Building /Public Works Dept. N -02
IF NOT ONE INCH
B Y DATE A P P R � "`�°"�`Y UTILITY PERMIT # 14004398 � z � °�
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