HomeMy WebLinkAboutWTR2703214.30SELECT CLASS B GRAVEL BACKFILL IN
CONFORMANCE WITH WSDOT 9-03.12(1)B,
COMPACTED TO 95% OF MAXIMUM DRY
DENSITY PER ASTM D1557 (STANDARD
PROCTOR), PROCEDURE B OR C.
WIDTH AND FINISH GRADE PER SITE PLAN
6"
CLEAR ROADWAY OF TREES AND BRUSH,
STRIP TOPSOIL TO A MINIMUM DEPTH OF 12". j
REMOVE SOIL CONTAINING MORE THAN 5%
ORGANICS. COMPLETELY REMOVE LARGE
ROOTS OR STUMPS IN THE PROPOSED AREA. /
UNDISTURBED NATIVE MATERIAL, PROOF ROLLED TO A FIRM AND UNYIELDING
CONDITION WITH A 10-TON VIBRATORY ROLLER OR OTHER METHOD APPROVED
BY THE ENGINEER. AREAS THAT ARE SOFT, LOOSE, OR YIELDING SHALL BE
COMPACTED TO MEET THESE SPECIFICATIONS OR REMOVED AND REPLACED. IF
BACKFILL IS REQUIRED IT SHALL BE SELECT CLASS B GRAVEL BACKFILL IN
CONFORMANCE WITH WSDOT 9-03.12(1)B, COMPACTED TO 95% OF MAXIMUM
DRY DENSITY PER ASTM D1557 (STANDARD PROCTOR), PROCEDURE B OR C.
MAXIMUM LIFT THICKNESS 8". PROOF ROLLING SHALL THEN BE PERFORMED TO
VERIFY COMPACTION AND STABILIZATION
A G E GRAVELED AREAS DETAIL
NOT TO
2" TO 4"
QUARRY SPALLS
1 Q 1 A L B L= DISTANCE SUCH THAT
ELEVATIONS A & B ARE EQUAL
A 2 -B /-k
12
1 4" TO 6" MIN
CONTRACTOR TO PROVIDE TEMPORARY
BRACING AS NECESSARY TO RESIST 400
LB BUOYANT FORCE ON THE TEE OUTLET
STRUCTURE, REMOVE BRACING AFTER
BOTTOM ORIFICE IS UNPLUGGED.
POND RETAINING
WALL
449.5'
FICE
*.
448.5' 12" OUTLE
METAL OUTLET PIPE,
SEE NOTES 3 & 4
WALL LEVELING PAD
FILL GAP BETWEEN MANHOLE /
AND WALL WITH GRAVEL J
BACKFILL FOR DRAINS
RESTRICTOR PLATE
WITH 0.7" ORIFICE
PLUG BOTTOM ORIFICE DURING
CONSTRUCTION TO CREATE A
SEDIMENT POND. UNPLUG ORIFICE
FOLLOWING STABILIZATION OF
DISTURBED SITE AREAS.
r
ALIGN CHANNEL WITH
CONTOURS AS SHOWN
ON PLANS
CRUSHED SURFACING (11/4"
MINUS) IN CONFORMANCE WITH
WSDOT 9-03.9(3), COMPACTED TO
o
95% OF MAXIMUM DRY DENSITY
PER ASTM D1557 (STANDARD
PROCTOR), PROCEDURE B OR C.
LIJ
0
pill..I
4' MIN
Y
Z
�
Z
Q
m
'
Q
m
0
—�
8' MIN
o
PER PLAN
mo
4
2' MIN --
7.5" MIN ---
F ROCK CHECK DAMS
CO3
CLEANOUT SHEAR
GATES 8" DIA. MIN.
CV
z_
54" MIN. DIA
A -A SECTION VIEW
POND RETAINING WALL
PROVIDE RIP -RAP CONFORMING
TO APWA/WSDOT SECTION 9-13.2
PROVIDE DITCH LINING
GEOTEXTILE FABRIC BETWEEN
RIP -RAP AND SOIL
B
F
D
B
POND
CONTROL
STRUCTURE
C1
C07
C05
CO3
_ . NOT TO SCALE
VARIES
6" MIN
12" MIN --'
FRONT VIEW
Y
z
zc
0
0
w
0
REMOVABLE
WATERTIGHT
COUPLING
PLATE WITH
141
ORIFICE AS
SPECIFIED
ELBOW DETAIL
NOTES:
1. USE A MINIMUM OF A 54" DIAMETER TYPE 2 CATCH
BASIN.
2. OUTLET CAPACITY: 100-YEAR DEVELOPED PEAK
FLOW.
3. METAL PARTS: CORROSION RESISTANT.
NON -GALVANIZED PARTS PREFERRED. GALVANIZED
PIPE PARTS TO HAVE ASPHALT TREATMENT 1.
4, IF METAL OUTLET PIPE CONNECTS TO CEMENT
CONCRETE PIPE: OUTLET PIPE TO HAVE SMOOTH O.D.
EQUAL TO CONCRETE PIPE I.D. LESS 1/4".
5. PROVIDE AT LEAST ONE 3" X .090 GAGE SUPPORT
BRACKET ANCHOR TO POND RETAINING WALL.
(MAXIMUM 3'-0" VERTICAL SPACING)
6. LOCATE ELBOW RESTRICTOR AS NECESSARY TO
PROVIDE MINIMUM CLEARANCE AS SHOWN.
7. LOCATE ADDITIONAL LADDER RUNGS IN STRUCTURES
USED AS ACCESS TO TANKS OR VAULTS TO ALLOW
ACCESS WHEN CATCH BASIN IS FILLED WITH WATER.
PROVIDE 1' THICK
OF QUARRY SPALLS
PER WSDOT 9-13.6
FILTER FABRIC LINER
UNDER SPALLS
Y
z
Q
m
0 44
LLJ
o SECTION A -A
A B H POND OUTFALL PAD DETAIL
C06 CO5 CO3 NOT TO SCALE
---
453.00' _
AX WS ELEV
PROVIDE 1-MAN ROCK 12" TO 18" DEEP,
SLOPE PER PLAN, SET RIP -RAP PAD SO THAT
TOP MATCHES SPILLWAY BLOCK ELEVATION.
FILL GAPS IN 1-MAN ROCKS WITH QUARRY
SPALLS SO SURFACE VARIES BY NO MORE
THAN 4" OVER DITCH LINING WOVEN
1' MIN C F - = PER WSDOT 9-33.
FREEBOARD
3
�-- 10 MIN, 453.17'
TOP OF WALL
AT SPILLWAY
PROVIDE DITCH LINING
GEOTEXTILE FABRIC
_ 18.8' AT RETAINING WALL _ BETWEEN QUARRY
15' AT END OF SPILLWAY SPALLS AND SOIL
OVERFLOW SPILLWAY DETAIL
NOT TO SCALE
PROVIDE ROCK LINED DITCH
PROVIDE 1' THICK PER PLANS
OF QUARRY SPALLS /
PER WSDOT 9-13.6 ,
3 t
�1
1.25' MIN.
�' ` PROVIDE DITCH LINING
GEOTEXTILE FABRIC BETWEEl
QUARRY SPALLS AND SOIL
=A A ROCK LINED DITCH
NOT TO SCALE
SEE DWG NO. C11 FOR PIPE
PENETRATION DETAIL
OUTLET PIPE
FLOW
BEVEL PIPE AND PROVIDE
TRASH RACK (NOT SHOWN)
12-INCH ROCK DEPTH,
EXCAVATE EXISTING SOIL
TO INSTALL
SEE DWG NO. C11 FOR PIPE
PENETRATION DETAIL
POND INLET FROM ACCESS ROAD CATCH
BASIN
PROPOSED
RETAINING WALL PROVIDE RIP -RAP
CONFORMING TO
% APWA/WSDOT SECTION
9-13.2
2'
SEED WITH MIXTURE PER PROVIDE V-DITCH PER PROPOSED
TECHNICAL SPECIFICATIONS /� GRADING PLAN, SEE DWG NO. CO3
l
3' MIN. LEVEL BERM
3 MAX
�1
/1.5' MIN.
IF DITCH IS CONSTRUCTED IN f
FILL, THE BERM SHALL BE f
COMPACTED TO A MIN OF 90%
OF MAXIMUM DENSITY
E INTERCEPTOR DITCH DETAIL
CO3 NOT TO SCALE
12'
6'
2% 2%
MIN. 4 INCHES CRUSHED SURFACING BASE
COURSE, IN CONFORMANCE WITH WSDOT
9-03.9(3), COMPACTED TO 95% OF
MAXIMUM DRY DENSITY AS DETERMINED BY
ASTM D698 (STANDARD PROCTOR)
PROOF ROLL IN THE PRESENCE OF THE
ENGINEER
�- FINISHED GRADE, PER PLAN
" EXISTING NATIVE MATERIAL
G G POND ACCESS ROAD SECTION__
C1 CO3 NOT TO SCALE
OUTFALL PIPE FROM
A DECHLORINATION MANHOLE
PROPOSED
7.5' RETAINING WALL
% OUTLET CHECK VALVE
i
J / PROVIDE RIP -RAP
% CONFORMING TO
12' / APWA/WSDOT SECTION
9-13.2 POND BOTTOM
{v.w01 WAS
F
16727 /
►,.: IONAL
SIGNED. 06 2910 i
SIGNED: 06129107
LR
PROPOSED of
2"(MIN).
PROVIDE SUFFICIENT
PROVIDE DITCH LINING
RETAINING LL
rI
A
CLEARANCE TO ALLOW
GEOTEXTILE FABRIC BETWEEN
_
WALL
VALVE BILL TO OPEN
RIP -RAP AND SOIL
WITHOUT INTERFERENCE
PLAN
SECTION A-A,2
ENGINEERING, IN
E C C
POND
INLET
RIP
-
RAP
PAD
httP:%www.rh2.com
moilbox@rh2.com
1.800.720.8052
POND BOTTOM
D
p
2'
PROPOSED f o ' PROVIDE DITCH LINING
RETAINING J �� A GEOTEXTILE FABRIC BETWEEN
WALL RIP -RAP AND SOIL
PLAN SECTION A -A
rD"�V D POND CATCH BASIN INLET RIP -RAP PAD
NOT TO SCALE
BELLINGHAM OFFICE
360.676.0836
454 West Horton Rood t
BOTHELL OFFIC'
425.951.5400
12100 NE 195th Street, Juiie 11,
EAST WENATCF-IEE OFFIC
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PORT ORCHARD OFFICE
360.876.7960
inn l+gnr C+ppp± C; ;+p 101
W
3 21418
i r. nLC 3r
0 1" 2„
DRAWING IS NOT TO SCALE
REVISED TO CONFORM IF BAR IS NOT 2" LONG
7STR7TIO ECORD$ PLOT: 1 DWG NO.
11 06/08/09
C04
;d7L;41
Re ENGINEERIN6 INC. DATE - -
SEP 14 HEFT No
REVISED TO C& iPM TO CONSTRUCTION RECORDS DY KJS 06/08/09 CLIENT: REN 12,
ADDENDUM / ISSUt- FOR CONSTRUCTION BTE MM 10/09/07 JOB NO.:
BY REVIEW DATE FILENAME: HAZEN _