01CIRCULAR NON-TRAFFIC RATED MANHOLE FRAMES & COVERS02CIRCULAR TRAFFIC RATED MANHOLE FRAMES & COVERS03GRAY IRON MONUMENT CLEANOUT FRAMES & COVERS04GATE CAPS, MONUMENT MARKERS & CENTER PIECES05AREA DRAINAGE CASTINGS06AIRPORT & PORT AUTHORITY DUCTILE IRON CASTINGS07MISC. METALS: FLOOD CONTROL, STORM DRAINS, STORM SEWER08MISC. METALS: HWYS, ROADS, BRIDGE DECK DRAINAGE SYSTEMS09MISC. METALS: PUMP STATIONS, SANITATION, WATER TREATMENT FACILITIES, STORM WATER POLLUTION CONTROL, ETC.
07MISC. METALS: FLOOD CONTROL, STORM DRAINS, STORM SEWER
LB 24-9LB 24-12
LB TYPE 24HEAVY TRAFFIC Steel Grate and Frame Assembly Rectangular heavy traffic service grate and frame assembly designed primarily for highways and roadways. NOT SUITABLE FOR BICYCLE OR PEDESTRIAN TRAFFIC. Conforms with the STATE OF CALIFORNIA (CALTRANS) STANDARD PLAN DRAWING D77A.

Support beams are available for structures requiring multiple grates, and the assembly is furnished galvanized or uncoated (bare finish).
Catalog NumberGrate WidthGrate LengthClear Opening of FrameApprox. Weight
LB 24-923-1/2"40"24" x 35-3/8"249 lbs
LB 24-1223-1/2"40"24" x 35-3/8"326 lbs

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