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REMOVABLE FLANGE
WATERTIGHT
COUPLING OR
6" MAX. --w-] [-a—
PLATE WELDED TO ELBOW
WITH ORIFICE DIA 21 ".
SEE NOTE 3
ELBOW RESTRICTOR
DETAIL
NTS
E:iffe
2" MIN.
95
RIM 375.31
V.=371.11 ELBOW RESTRICTOR.
IIN. SEE DETAIL AND NOTE 10
PIPE
SUPPORTS 1.5 x D
° SEE NOTE t111IN.
18" CPEP OUTLET PIPE —
18" CMP "T" RISER IE 368.01
SEE NOTES 1 & 5
18" RISER DIAMETE
IE 366.14
RESTRICTOR PLATE WITH
2.5 " ORIFICE DIAMETER
2" +/-
ACCESS
ADJACENT TO TEE
2' MIN. CLEARANCE TO
ANY PORTION
OF FROP-T INCLUDING
ELBOWS
FRAME & SOLID COVER
WITH LOCKING BOLTS
PER COR STD PLAN 204.50
TOP OF RISER
ELEV.=373.61
VERTICAL BAR
GRATE FOR
SECONDARY
f�/INLET
UV
ELEV.=371.11
HANDHOLDS,
STEPS OR LADDER
SEE NOTE 9 (TYP.)
I 2' MIN.
INLET 24" CPEP PIPE
IE 368.01
PIPE
SHEAR GATE WITH
N
CONTROL ROD FOR
12"
CLEANOUT/DRAIN (ROD
BENT AS REQUIRED FOR
12"
VERTICAL ALIGNMENT
o
WITH COVER) SEE STD.
N
12"
PLAN 237.30
SECTION A -A
NTS
ADDITIONAL LADDER
RUN (IN SETS) TO
ALLOW ACCESS TO
TANKS OR VAULTS
WHEN CATCH IS FILLED
WITH WATER.
I �I
ELBOW
RESTRICTOR SEE
SEE DETAIL 2, MIN \ NOTE 9
ANGLE AS
NECESSARY
PLAN VIEW SEE NOTE 7
NTS
NOTES:
1. USE A 54" DIAMETER TYPE 2 CATCH BASIN.
2. OUTLET CAPACITY: 100-YEAR DEVELOPED PEAK FLOW.
3. METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIUM STEEL, OR ALUMINIUM. ALL OTHER ALL OTHER
STEEL PARTS MUST BE GALVINIZED WITH TREATMENTS 1,2, OR 5.
4. FRAME AND LADDER OR STEPS OFFSET SO:
A. CLEANOUT GATE IS VISIBLE FROM TOP.
B. CLIMB -DOWN SPACE IS CLEAR OF RISER AND CLEANOUT GATE.
C. FRAME IS CLEAR OF CURB.
5. 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".
6. PROVIDE AT LEAST ONE 3" X .090 GAGE SUPPORT BRACKET ANCHORED TO CONCRETE WALL. (MAXIMUM T-0"
VERTICAL SPACING).
7. LOCATE ELBOW RESTRICTOR(S) AS NECESSARY TO PROVIDE MINIMUM CLEARANCE AS SHOWN.
8. LOCATE ADDITIONAL LADDER RUNGS IN STRUCTURES USED AS ACCESS TO TANKS AND VAULT TO ALLOW
ACCESS WHEN CATCH BASIN IS FILLED WITH WATER.
9. WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE
ADAPTOR OR APPROVED EQUAL). WHEN CONNECTING TO AN EXISTIING PIPE, USE A FABRICATED SAND COLLAR
OF THE SAME MATERIAL AS THE CONNECTING PIPE.
10. TEE SHALL BE CONSTRUCTED OF ALUMINUM CMP OR ALUMINIZED STEEL CMP MEETING WSDOT/APWA
STANDARDS.
DETAIL
CB#2 FLOW RESTRICTOR C2
S • GI NTS
0V WA
999 Third Avenue, Ste 3200
Seattle, WA 98104
14- 02 206.382.5200
24055
I SyV'0
s�IONaL F�� PNO.
HYDROSEED EXIST.
POND SLOPE AND BENCH
(FULL POND PERIMETER
EXCEPT AT ACCESS ROAD)
3 FEET BENCH
EXTENT OF
PLANTING (FULL
POND PERIMETER
EXCEPT AT
ACCESS ROAD)
7 WETPOND WSE=368.14
POND BOTTIOM (VARIES)
I NTS
I f7YTF7K1T M7 pI AKITIKI
SECTION
NTS
SEE TYPICAL SHRUB
DETAIL, DETAIL 3
THIS SHEET
DETAIL 2-
TYPICAL LANDSCAPE PLAN & SECTION (TYP) C2
NTS
SURVEYED: SCALE:
1 ALLIANCE VERTICAL: NAVD 1988
AS NOTED HORIZONTAL: NAD 1983/1991
DESIGNED:
1 ALLIANCE
DRAWN:
AM ONE INCH �ATU M
BID SET JE 8-14-2020 MSG CHECKED
JC IF
FULL SCALE
NOT ONE INCH
REVISION BY DATE APPR APPRMG OVED: SCALE ACCORDINGLY
NTS
PLANT SCHEDULE
SPACING ON
NO
SPECIES
COMMON NAME
STOCK TYPE
CENTER (FEET)
QUANTITY
1
JUNCUS
SOFT RUSH
10—Inch root
2'-0"
300
EFFUSUS
depth plug
2
SCIRPUS ACUTUS
HARDSTEM
BULRUSH
10—Inch root
depth plug
2'-0"
300
3
SCIRPUS
SMALL —FRUITED
10—Inch root
„
2 —0
300
MICROCARPUS
BULRUSH
depth plug
FII
Gf
LOW PERMEABILITY LINER
FIRMLY PACKED MATE
(TO SUPPORT SHRUE
DST AMENDED SOIL
L/\I-) I ING
SUBGRADE
DETAIL r2
TYPICAL SHRUB PLANTING —
NTS
R-413301
-T-.
CITY OF HEATHER DOWNS DETENTION POND WATER 8/15/2020
QUALITY RETROFIT PROJECT FIELDHOOK
RENTON RAGE
DRAWING N00 :
C6
Planning/Building/Public Works Dept. CIVIL DETAILS SHT 2 OF 2
SHEET:
8 8