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Engineered for extreme structural shock loads. Our heavy-duty fabricated steel grates and matching paving risers are designed for high-traffic industrial corridors, airport ramps, and municipal arterial roadways.
Featuring aerodynamic directional vanes and high-intake hydraulic open matrices. Captures torrential runoff at high velocities while preventing debris blockages and hazardous hydroplaning.
Non-standard dimensions? Sloped curb gutters? No problem. Our domestic fabrication facilities weld custom catch basin grates and multi-tier risers to match your exact jobsite dimensions with zero frame excavation.
Select any catch basin steel grate, vane profile, or riser below to view detailed dimensional specifications, material grades, and CAD submittals.
Integrated structural steel catch basin grate and extension riser frame. Slides directly into existing curb-inlet frames, elevating grate to new asphalt grade without tearing out concrete.
High-Tensile Welded Carbon Steel Assembly
Continuous Inflow Arterial Fit
Custom Structural Steel Drainage Matrix
New York State DOT Approved Specification
High-Velocity Hydraulic Vane Profile
High Intake Stormwater Profile
G1 High Volume Curb Gutter Matrix
Drop-In Municipal Riser Assembly
Heavy Commercial Logistics Specification
Multi-Tier Bell Mouth Elevation Profile
Anti-Theft Mechanical Lock Matrix
Temporary & Permanent Controlled Drainage Plate
To guarantee zero rocking and a flush asphalt transition, our domestic fabrication team manufactures each catch basin steel grate and paving riser to your exact field measurements.
Exact Length (L) and Width (W) of the existing grate to guarantee proper fitment into the extension seat.
Inside clear opening of the existing cast iron catch basin frame to ensure drop-in clearance without binding.
Thickness of the grate outer perimeter and depth of the frame seating flange to ensure 100% flush bearing.
Desired rise height starting from 3/4" up to 6"+ in precise 1/4" increments to match the new asphalt lift.
| Model / Profile | Category | Material Specification | Typical Dimensions | Hydraulic Intake | Traffic Rating |
|---|---|---|---|---|---|
| 14" x 24" Fabricated Steel Grate with Paving Riser | Fabricated Steel Grate | ASTM A36 Carbon Steel / Structural Tubing | 14" W x 24" L x 2" to 4" Custom Rise | 68% Hydraulic Intake Area | Severe Duty Commercial / Heavy Axle |
| 10" x 36" Linear Heavy Steel Grate & Riser | Linear Steel Grate | ASTM A36 Heavy-Gauge Structural Steel | 10" W x 36" L x 2" Custom Rise | 72% Linear Flow Area | Highway Arterial / Heavy Transit Load |
| Heavy Industrial Fabricated Steel Drainage Grate Assembly | Fabricated Steel Grate | High-Tensile Welded Carbon Steel Plate | Custom Fabricated per Field Blueprint | 70% Open Hydraulic Matrix | Industrial / Heavy Port Cargo Load |
| State of NY DOT G2 Catch Basin Grate | State DOT Grate | ASTM A48 Class 35B / ASTM A536 Cast Metal | Standard NY DOT G2 Catch Basin Dimensions | 65% Flow Efficiency | Municipal Highway / Full Traffic Rating |
| State of NY DOT G3 High-Inflow Vane Grate | Directional Vane Grate | High-Strength Ductile Iron / Gray Iron | Standard NY DOT G3 Pattern Matrix | 75% High-Capacity Vane Intake | Highway Severe Duty / High Velocity Flow |
| D1 Heavy Flow Drainage Grate | High Flow Grate | Cast Iron / High Tensile Alloy | Standard D1 Basin Fitment | 66% Intake Matrix | Heavy Commercial / Municipal Traffic |
| G1 Series Municipal Catch Basin Grates | Municipal Gutter Grate | ASTM A48 Class 35B Heavy Gray Iron | Standard G1 Matrix Dimensions | 64% Flow Matrix | Heavy Arterial Street Rating |
| 10022 Series Catch Basin Grate & Riser Frame Assembly | Catch Basin Assembly | Heavy Cast Iron Grate with Welded Steel Riser | Standard 10022 Frame Clear ID Match | 62% Hydraulic Free Area | Heavy Commercial / Municipal Traffic |
| 36" x 19.8" Heavy Commercial Catch Basin Grate & Riser | Commercial Basin Grate | Ductile Iron / Structural Steel Sub-Frame | 36" W x 19.8" L x Custom Rise Height | 69% Free Intake Area | Heavy Commercial / Freight Terminal Load |
| 12047 Bell Catch Basin Riser Extension Assembly | Bell Riser Assembly | ASTM A536 Ductile Iron / Structural Steel | 12047 Bell Basin Dimensional Standards | Maximum Full-Bore Bell Flow | Highway / Severe Municipal Duty |
| Galvanized Reticuline Grate with Mechanical Lock | Locking Specialty Grate | Hot-Dip Galvanized Carbon Steel (ASTM A123) | Custom Sizes / Standard Catch Basin Matrices | 78% Ultra-High Intake Matrix | Heavy Commercial / Municipal Secure Zone |
| SP Solid & Slotted Catch Basin Cover Plates | Specialty Cover Plate | High-Strength Ductile / Carbon Steel Plate | Standard SP Catch Basin Seat Dimensions | Controlled Flow / Solid Utility Seal | Heavy Traffic Commercial Rating |