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1
8" MIN_ ORGANIC TOPSOIL
5UBGRA0E -DER KCC 16.82.1:00 iQPSOkL
1 � I
3' MIN, 95Z CGMPACTON PIT RUN 3 MINUS PIT RUN 3" MINUS
CRUSHED ROCK 3' }SIN 95� CQfdPAOTON CRUSHED ROCK
5/8"-I1 112" 5/8"-1 1/2"
NA7IVE MATERIAL IF NATIVE MATERIAL IF
APPROVED BY DISTRICT PIT RUN 3' MINUS APPROVED BY PIT RUN 3" MINUS
AND GOVERNING ROAD 90% COMPACTION CRUSHED ROCK DISTRICT ANp 30% COMPACTIpN CRASHED ROCK
AGENCY 5 f$"-1 1/2' P£RWIT71NIS AGENCY 8/8"-1 112"
I �
12" f MIN. 90% COMPAC71ON 12" MIN_ 907, COMPACTION
}
SAND —SOIL ENGINEER APPROVAL SA140—GOIL ENGINEER APPROVAL
& COMPAC-flO k TEST RFOU1RED & COMPACTION ILST REOU1RED
PEA GRAVEL PEA GRAVEL
# 5/8" MINUS CRUSHED —0 5/8" MINUS CRU5HED
I
6" MIN. 6" MIN.
1 `
I
2"-4' ROCK � � 2. —4" 013
SOILS ENGINEERING �� �S;]% COMPACTION f OTHER MATERIAIA SOILS ENGINEERING 90% COMPAC710N L �` � OTHi:#� MATEA71E RIAL
DETAfL NEEDED f UST'EV ABOVE DETAIL NEEDED f LISTED ABOVE
NOTES:
1 _ SEDDJNG REQUIRED IN RIGHT -OF-WAYS.
DRIVEWAYS, PARKING LOTS, PAVED
AREAS, AND NON -PAVED AREAS.
2. BEDDING FOR RIGID PIPE SHALL BE
NATIVE MATERIAL UNLESS JUDGED
UNSUITABLE BY THE DISTRICT AND
GOVERNING ROAD AGENCY
3, TRENCH BACXFILL, BEDDING AND
MATERIAL TO CONFORM TO GOVERNING
ROAD AGENCY SPECIFICATIONS AND
DISTRICT STANDARDS,
EPA
1505 Westlake Ave. N.
Suite 305
Seattle, WA 98109
TRENCH WIDTHS (IN INCHES)
NOMINAL,
PIPE
DIAMETER
MINIMUM
EARTH
MINIMUM
ROCK
MAXAMOM
2
18
24
36
3
18
24
36
4
18
74
36
6
21
24
36
$
24
24
36
�z
28
28
40
TYPICAL TRENCH
DETAIL
E SCAJE 61-,lRl�l APPRti'0VAL
MAY 17, 2011 NTS
M_ 4SGOS CREEK W&S\DESJGN STANDARDS\SWR
28
TYPICAL TRENCH
T (206) 522-9510
F (206)522-8344
WWW. PAcLAND.COM
N TS
K,V- I JUNE 02, 2�112�11
Clwa No, Fs
luulll ouml lump
NOTES:
1. BEDDING REQUIRED IN RfGHT-OF-WAYS,
DRIVEWAYS, PARKING LO-S. PAVED
AREAS. AND NON -PAVED AREAS.
2. BEDDING POR RIGID PIPE SHALL BE
NATIVE MATERIAL UNLE55 JUDGED
UNSUITABLE BY THE DISTRICT AND
PERMiTTING AGENCY.
3. TRENCH BACKFILL. BI=ODING AND
MATERiAl- TO CONFORM TO PERMITTING
AGENCY SPECIFICATIONS AND DISTRICT
S7ANDARDS,
MAY 17. 2011
ki: \SODS CREEK
TREKCH WIDTHS (IN
iNCAFS)
NOMINAL
PIPE
DIAMETER
MINIMUM
EARTH
MIN1MUY.
ROCK
6MAXIMUM
2
18
24
36
36
3
1824
4
18
24
3s
6
21
24
24
36
S
24
36
12
28 1
28
40
TYPICAL TRENCH DETAIL
(OUTSIDE ROADWAY)
Nisi
STANDARDS\SWR OILS
K.V. JUNE 02, 2011
DWG. NO. I S-29
TYPICAL TRENCH (OUTSIDE ROADWAY)
N TS
R-39881 1
S-398802
FOR INFORMATION ONLY
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