HomeMy WebLinkAbout237.20 (replaced 2020)DESIGN WS
1.OUTLET CAPACITY: 100 YEAR DEVELOPED PEAK FLOW.
2.METAL PARTS PREFERRED TO BE STAINLESS STEEL, ALUMINIZED STEEL, OR ALUMINUM. ALL
OTHER STEEL PARTS MUST BE GALVANIZED WITH TREATMENTS 1, 2, OR 5.
3.CATCH BASIN: TYPE 2 MINIMUM 72" DIAMETER TO BE CONSTRUCTED IN ACCORDANCE WITH
STD. PLAN 201.00 UNLESS OTHERWISE SPECIFIED.
4.BAFFLE WALL SHALL HAVE #4 BAR AT 12" SPACING EACH WAY.
5.PRECAST BAFFLE WALL SHALL BE KEYED AND GROUTED IN PLACE.
6.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH
CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING TO AN EXISTING
PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
NOTES:
FRAME AND ROUND SOLID COVER
MARKED "DRAIN" WITH LOCKING
BOLTS PER STD. PLAN 204.50
6" MIN.W
WEIR SHAPE AS NEEDED
FOR PERFORMANCE
DESIGN WATER SURFACE (WS)
SHEAR GATE WITH
CONTROL ROD FOR DRAIN
PER STD. PLAN 237.30
I.E. WEIR, INLET PIPE,
AND DRAIN = CROWN
OUTLET PIPE
FLOW
OUTLET PIPE
FRAME ELEVATION
PER PLANS12" MIN. UNDER
PAVEMENT
2' MIN.
2' MIN.
SECTION A SECTION B
ISOMETRIC PLAN
W
LOCATE ADDITIONAL
LADDER RUNGS (IN
SETS) TO ALLOW
ACCESS TO TANKS OR
VAULTS WHEN SUMP IS
FILLED WITH WATER
SHEAR GATE. LOCATE HORIZONTAL
FOR CLEARANCE WITH LADDER.
ATTACH ROD TO SUPPORT BRACKET
ON INSIDE OF ACCESS OPENING
HANDHOLDS, STEPS
OR LADDER (2 PLACES)
A BSEE NOTE 6 (TYP.)
6" MIN., SEE NOTES 4 AND 5
FLOW CONTROL STRUCTURE -
CONTROL WEIR
STD. PLAN - 237.20
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT