HomeMy WebLinkAboutSWP2702264.12n
00
0
0
0
U
i_
Z
O
N
L_
0
T
V)
C_
O
n
(D
I
U
0
I
ry
w
w
w
w
ry
U
.J J
w
w
w
w
w
ry
Q
>
1
0 0
0
J O
cr
w
w
IZ
V)
w
ry
U
SEE LOW FLOW NOTCH DETAIL,
w oO w
w
Cn J
Lo w
V) H H
w
� w w
4 =
> (n U
8" MIN. QUARRY SPALLS
OVER GEOTEXTILE UPSTREAM
OF SEAL LOG
LOW FLOW NOTCH DETAIL
18"0 MIN. UPPER LOG
SEE SHEET 5 FOR CREST ELEV.
LEVELING SHIMS, SEE SECTION E-E
18'0 MIN. SEAL LOG
#10 REBAR (2 REQ'D) -
2' THICK RIPRAP ON
DOWNSTREAM SIDE OF LOGS
SEE PLAN FOR EXTENTS
S ov R --2 7_ .22 6(t
14'-0" TOE WIDTH
CHANNEL,
D SYMMETRICAL
"T
C
4'-0" TOE WIDTH IMMEDIATELY DOWNSTREAM
OF LOG STRUCTURE, SEE SECT D-D ON SHEET 9
CHANNEL, SYMMETRICAL
7'- 0"
------------------
-------------------------------------
2 TYP. I
IIIIIIII III — -
I I I I
------ ate/ ----
L------- �. J
A
CHANNEL, SYMMETRICAL
13'-0"
8'-0"
E 7'-0" 5'-0»
ow
2'-0„
TOE OF SLOPE
ON D/S
SIDE OF LOG
------------------------------
2 TYP.
E
----------------------------
-
- r= -
-
�� I II I -
i` I,
;r--
.
s .
w
CHANNEL, SYMMETRICAL
8 -0 "
J_ 8 -0 "
EXTENT OF GEOTEXTILE COVERED WITH 8" MIN
DEPTH OF QUARRY SPACES, GRANULAR
7'-0"
7'-0"
BACKFILL & STREAMBED GRAVEL UPSTREAM
---
OF SEAL LOG
2 TYP.
HTilll ��
l—
SEE SHT. 5 FOR
UPPER LOG CREST ELEV.
_ - ----L
cn
\\\i\
\ 2 TYP.
L------------------I------------------
I
I
I I
L-------J
I L------- J
2' THICK RIPRAP LAYER
-
TYP EACH LOG
VEGETATION NOT
LOG DROP STRUCTURE
CREST
LOG DROP STRUCTURE
-
CREST
SHOWN, SEE
S
UPPER LOG
UPPER LOG
SHEETS 19-22
20'-0" - VARIES (EFFECTIVE
SLOPE = 5%) _
12'-0"
3'-0" 5'-0" 5'-0"
RIPRAP
RIPRAP GEOTEXTILE
STREAMBED GRAVEL
(VARIES, SEE SHEET 5)
TYP
TYP LIMITS TYP
SEAL LOG BELOW
UPPER LOG
PRECAST CONCRETE
BALLAST BLOCK
COMPACTED GRANULAR BACKFILL
UNDISTURBED GROUND
STREAMBED GRAVEL, 12" MIN DEPTH
EXCAVATE AS STEEPLY AS
POSSIBLE ABOVE GRAVEL AND
RIPRAP BREAK POINTS
2' THICK RIPRAP, SEE
PLAN FOR EXTENTS
UPPER LOG ATTACHED TO
ECOLOGY BLOCK WITH CHAIN (TYP.)
EXISTING GROUND
2' THICK RIPRAP, SEE PLAN
FOR EXTENTS
UNDISTURBED GROUND
COMPACTED GRANULAR FILL
LOCALIZED EXCAVATION FOR
LOG/BLOCK INSTALLATION
1.5'H X 3' X 3' PRECAST CONCRETE
BALLAST BLOCK, PLACE AS NEAR TO
END OF SEAL LOG AS POSSIBLE
2 X 6 PRESSURE TREATED SEAL
BOARD, MITER EDGES TO PROVIDE
SEALED EDGES AND ATTACH TO
LOGS WITH 16d GALV. NAILS.
SEAL GAPS WITH 2 X 4 TYP
ATTACH GEOTEXTILE (NICOLON 570
OR EQUAL) TO UPPER LOG WITH
2 X 4 PRESSURE TREATED WOOD
CLEAT, FULL LOG LENGTH TYP
DRILL 1 3/8"0 HOLE @ 30%
DRIVE (2) #10 REBAR THROUGH
LOGS AND EMBED INTO CREEK
BED AT LEAST 4' TYP
CHAIN TO HOLD
UPPER LOG TO
CONCRETE BLOCK
18"0 UPPER LOG —�
3/4"0 BOLTS OR ALL
THREADED RODS
0
30`
FLOW
NOTCH LOG 2" DEEP BY
2" WIDE FOR CHAIN
CREST ELEVATION PER
PROFILE ON SHEET 5
�— PRESSURE TREATED OR
CEDAR WOOD SHIMS FOR
LEVELING
z1.5'H X 3' X 3' PRECAST
CONCRETE BALLAST BLOCK
10 1 /4"
V-6"
SCALE 0 2 FEET
IIIII I
1 /2" = 1'-0"
APPROVEC%
LYD�C4,i
0 0
co 0
_1 1
CV
DATE 98
25792
TE��'� wW
�SSIONAL EEngineers and Scientists
Bellevue, Washington
EXPIRES 12-21-99 TEL: (425) 602-4000
FAX: (425) 602-4020 NO.
2' THICK RIPRAP LAYER TYP
UNDISTURBED GROUND
EXCAVATE AS STEEPLY AS
POSSIBLE ABOVE GRAVEL
BREAK POINTS
COMPACTED GRANULAR BACKFILL
STREAMBED GRAVEL, 12" MIN DEPTH
I 18"0 MIN. UPPER LOG
SEE PROFILE, SHEET 5
FOR CREST ELEV TYP
STREAMBED GRAVEL
12" MIN. DEPTH TYP
~ FILL OVER GEOTEXTILE WITH
8" DEPTH OF QUARRY SPALLS
AND GRANULAR BACKFILL TYP
"Mol-
ELEVATION SECTION
LOW FLOW NOTCH DETAIL
SUBGRADE
18"0 SEAL LOG
STREAMBED GRAVEL
12" MIN. DEPTH TYP
GRADE LOGS ARE SIMILAR
TO LOG DROPS EXCEPT
ORIENTED VERTICALLY
SEE NOTE 2
FLOW
NOTES:
1. UPPER LOGS FOR LOG DROPS &
UPPER LOG GRADE LOGS SHALL BE RELATIVELY
STRAIGHT AND SET LEVEL TO WITHIN
±1 /4" OVER THE WIDTH OF
FLOW EXPOSED PORTION OF LOG.
2. GRADE LOG STRUCTURES ARE SIMILAR
TO LOG DROP STRUCTURES EXCEPT
WITHOUT NOTCH, GEOTEXTILE, 2X4
CLEAT & SEAL. SECTS A -A, B-B
AND C-C APPLY TO GRADE LOGS
EXCEPT AS INDICATED ABOVE.
SCALE 0 2 FEET0 4' 8'
I I I I
1 /4" = 1 ' - 0"
1 /2" = V-0"
EXCEPT A5 NOTED
ED
CITY OF RENTON
DEPARTMENT OF PUBLIC WORKS
MAPLEWOOD CREEK FISH CHANNEL PROJECT
LOG DROP STRUCTURE
PLAN, SECTIONS, AND DETAILS
DESIGNED: DEP DATE: 7/1/98 FILE NAME: SHEET11
DRAWN: DEP
CHECKED: DPT SCALE: AS SHOWN FIELD BOOK: PAGE:
REVISION BY APPR. DATE APPROVED: DIRECTOR OF PUBLIC WORKS SHEET: 11 OF: 22
SDANNF=D 3 0 Z000