17-101601LLC I ION L. ::.$)l5: l r? l i t.? . ;'..M .
FIGURE C.LLD 50-FOOD' DISPERSION TRENCH NVIT11 NOT+C'IIFD BOARD
RIPE O•D,
1'- 0 ,'- 0
MIN. N. END CAP OR PLUG FLOW TO SECOND
DISPERSALTRENCH
CLEAN OUT WYE FROM PIPE IF NECsESSA'RY
MIN 6" PERFORATED PIPE
-~ LAID FLAT1 LEVEL TYPE I CB
t TYPE I CB WISOLII3 ;' WlSC)LIl3
COVER (LOCKING) COVER
A A
50
._._...._.. .
INFLUENT P I PE ( MAX DESIGN
(FLOW <0.5 CFS'PER TRENCH)
CLEAN OUT WYE FROM PIPE j
7 .� .
s FLOW TO OTHER BRANCHING
CBS AS IN ECESSA RY
NOTCHED
GRADE BOARD PLAN -+— 18"O.C.�
Z'XZ'NOTCHES NTS
:PIPE O.D.
GALVANIZED—'1 1'-0 1'-0 206c X, ^RADE BOARD
SE NOTCHES*
BOLTS MIN. MIN, SEE t4O_ 5
tiS� 'FOR WATER QUALITY FACILITIES,
SEESECTION 6.2.6.1.OPTION AFOR
f ° f NOTCH DIMENSIONS AND SPACING
GRADE A ; --FILTER FABRIC TRENCH LINER
g BOARD
r'- CLEAN (<5-A FINES}
n' - 1 I"' WASHED BOCK
4"X4',—
SUPPORT f n MIN 6" PERFORATED PIPE LAID FLAT
POST
- NOTES-.
1 THIS TRENCH SHALL BE CONSTRUCTED TO
w PREVENT POINT DISCHARGE ANDIOR EROSION.
rf a 2. TRENCHES MAY BE PLACED NO CLOSER THAN
50 FEET TO ONE ANOTHER (100 FEET ALONG
FLOW LINE).
0 TRENCH AND GRADDE BOARD MUST 13E LEVEL.
' ALIGN TO FOLLOW CONTOURS OFSITE
h;tIN SECTIONA-r4 4. SUPPORT POST SPACING AS REQUIRED BY SOIL
NTS CONDITIONS TO ENSURE GRADE BOARD
REMAINS LEVEL.
5. 15% MAX UN LESS OTHERWISE EVALUATED AND
APPROVED, SEE SECTION C.2.1.1
32 DISPERSION TRENCH PER C.2.1.D
RIM = 404.9
IE = 403.4
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10"F�jb
(D8 M &
PREPARED BY
8627 NE 180th St.
A N S T E Y BOTHELL, WA 98011
PHONE: (206) 303-7639
ENGINEERING FAX: (425) 486-0267
benanstey@ansteyengineering.com
S
VICINITY MAP
TAX PARCEL
# 4420600035
LEGAL DESCRIPTION:
Louises North Lake TRS
Lot #7
LL Management LLC.
c/o Nos Ivanchk
24913 104th Ave SE.
Kent, Washington 98030
COVERAGE: 15,757 S.F. TOTAL LOT AREA (0.756 ACRES)
2,244.4 S.F. BUILDING ROOF
747 S.F. DRIVEWAY
TOTAL IMPERVIOUS = 2,991.4 SF
19% COVERED
DRAINAGE PLAN
LL MANAGEMENT LLC Residence
XXXX S337TH PL Federal Way
PARCEL NO 4420600035
PERMIT NUMBER: _________
y �
c�� r.,s s A
APPROVED:------
.
l 201?
CITY OF FED Pr4,, ,,
AA U�d17Y17EVELOP;%ioi
DATE:------
i
--
4/7/17
DATE
4/6/17
D o o rl
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