HomeMy WebLinkAbout200.3014*
FRAME AND VANED GRATE
s"
5
6" OR 12"
\� ONE #3 BAR HOOP FOR 6" HEIGHT
TWO #3 BAR HOOPS FOR 12" HEIGHT
RECTANGULAR ADJUSTMENT SECTION
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#3 BAR EACH CORNER
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#3 BAR EACH SIDE
TOP AND BOTTOM
a
ONE #3 BAR
ACROSS BOTTOM
PRECAST BASE
SECTION
#3 BAR EACH CORNER
18" MIN
#3 BAR HOOP
SEE NOTE 1
ALTERNATIVE PRECAST BASE SECTION
PIPE ALLOWANCES
MAXIMUM
PIPE MATERIAL INSIDE
DIAMETER
REINFRCED OR
PLAIN CONCREE E 12
I ALL METAL PIPE 1 15" 1
CPSSP* 12"
(STD. SPEC. 9-05.20)
SOLID WALL PVC 15"
(STD. SPEC. 9-05.12(1))
PROFILE WALL PVC 15"
(STD. SPEC. 9-05.12(2))
* CORRUGATED POLYETHYLENE
STORM SEWER PIPE
NOTES
1. As acceptable alternatives to the rebar shown in the PRECAST BASE
SECTION, fibers (placed according to the Standard Specifications), or
wire mesh having a minimum area of 0.12 square inches per foot shall
be used with the minimum required rebar shown in the ALTERNATIVE
PRECAST BASE SECTION. Wire mesh shall not be placed in the
knockouts.
2. The knockout diameter shall not be greater than 18". Knockouts shall
have a wall thickness of 2" minimum to 2.5" maximum. Provide a 1.5"
minimum gap between the knockout wall and the outside of the pipe.
After the pipe is installed, fill the gap with joint mortar in accordance
with Standard Specification 9-04.3.
3. The maximum depth from the finished grade to the lowest pipe invert
shall be 5'.
4. The frame and grate may be installed with the flange up or down. The
frame may be cast into the adjustment section.
5. The Precast Base Section may have a rounded floor, and the walls may
be sloped at a rate of 1:24 or steeper.
6. The opening shall be measured at the top of the precast base section.
7. All pickup holes shall be grouted full after the inlet has been placed.
PUBLIC WORKS CONCRETE INLET STD. PLAN — 200.30
DEPARTMENT
MARCH 2008