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TYPICAL HABITAT BOULDER STRUCTURES
Lo
I
EXCAVATED
` TRENCH
FOR CHANNEL
SEE SHEET 9
s'w,p _ 2 7-226(f
O
4
Lo - -
4 5' 3' MIN
N STREAMBED GRAVEL,
r 12" MIN. DEPTH
SEE SHEET 9
A - A
ROCK DEFLECTOR DETAIL
B B
ROCK CLUSTER DES-= Il
A,YER
A
C
CONCRETE ECOL(
3' X 3' X 1.5' Ill'
4' X 3' X 3' IN kit I LI. V11P11 VI VLL
0" 1 A \/rr-) !lf /-\I I A mm\/ C-M A I I C` r1ll1AIt, Ic--rmr- A A A nr C`n1 ITTr-m STRUCTURE;
PLAN
SINGLE ROOT LOG
C
D
Imp ���cu� �>•�I
4" 1 A vCD nC nI I A DDV CD A I I C nn%AInICTDC A AA nC CDI ITTCD STRUCTURE;
D
PLAN
DOUBLE ROOT LOG
RIPRAP OR RIPRAP OR
QUARRY SPALLS FISH CHANNEL/CREEK _ QUARRY SPACES FISH CHANNEL/CREEK
o O
I � I
1' - 2' LOWER CHANNEL ROOT LOG 1' - 2' ROOT LOG
3' - 4' UPPER CHANNEL 12 - 15"0 FIR OR CEDAR 12 - 15"� FIR OR CEDAR
l l l—1 l X 12 - 16' LONG - ,����,� � X 12 - 16' LONG
- - W/ ROOTWAD TYP
W/ ROOTWAD
10 15°
COMPACTED GRANULAR
BACKFILL
CONCRETE ECOLOGY BLOCK
3' X 3' X 1.5' IN LOWER CHANNEL
4' X 3' X 3' IN UPPER CHANNEL-
2 WRAPS OF 5/8" GALVANIZED
IMPROVED PLOW STEEL 6X19
FIBRE CORE WIRE ROPE. SECURE
W/ 2 WIRE ROPE CLAMPS
FILL VOIDS WITH ROCK
QUARRY SPALLS, COMPACTED
GRANULAR BACKFILL &
STREAMBED GRAVEL
JE FINAL ROCK
PLACEMENT WITH
EMBED ROCK MIN
STREAMBED GRAVEL
�EAMBED GRAVEL,
MIN. DEPTH
SEE SHEET 9
NOTCH LOGS TOGETHER
FOR CHANNEL GEOMETRY
SEE SHEET 9
STREAMBED GRAVEL,
12" MIN. DEPTH
SEE SHEET 9
C -C
SINGLE ROOT LOG DETAIL
2 WRAPS OF 5/8" GALVANIZED
IMPROVED PLOW STEEL 6X19
FIBRE CORE WIRE ROPE. SECURE
W/ 2 WIRE ROPE CLAMPS
DOUBLE ROOT LOG
lb 226 ''
NOTES:
1. FOR
LOCATIONS OF HABITAT STRUCTURES SEE SHEETS 3 THRU
6.
2. THE
CITY SHALL DIRECT THE EXACT STRUCTURE PLACEMENT
AND
LOCATIONS IN THE FIELD DURING CONSTRUCTION.
3. O
& O INDICATE 3 & 4 MAN ROCKS AS DEFINED BY THE
POS
SUPPLEMENTAL
SPECIFICATIONS.
�'
WAS���C�
4. THE
CITY MAY DIRECT THE CUTTING OF THE LENGTH OF
ROOT
LOGS TO FIT THE ACTUAL LOCATIONS INSTALLED.
a
25792 Q
��GISTER�'�
�SSIONAL E��1
EXPIRES 12-21-99
v �
Engineers and Scientists
Bellevue, Washington
TEL: (425) 602-4000
FAX: (425) 602-4020 N0. REVISION BY APPR. DATE
FOR CHANNEL GEOMETRY
SEE SHEET 9
STREAMBED GRAVEL,
12" MIN. DEPTH
SEE SHEET 9
SCALE: NONE
B1f�G DATA -6-98
CITY OF RENTON
DEPARTMENT OF PUBLIC WORKS
MAPLEWOOD CREEK FISH CHANNEL PROJECT
FISH HABITAT STRUCTURE DETAILS
DESIGNED: CMG/DPT
DRAWN: DWH
CHECKED: DEP
APPROVED:
DATE: 7/1 /9 S
SCALE: AS SHOWN
DIRECTOR OF PUBLIC WORKS
FILE NAME: SHEET12
FIELD BOOK: PAGE:
SHEET: 12 OF: 22
SCANNF-D `,k. ,P 3 0 2000