Mega Paving Risers
Storm
Stormwater Management

Storm
Drainage Systems

100%

Hydraulic Capacity

0 - 15%

Slope Adjustment

H-20 Heavy

Load Rating

Flow Optimization

Precision-engineered for high-velocity runoff. Our drainage risers ensure optimal hydraulic capacity while maintaining a flush street-level profile.

Effective stormwater management requires more than just an opening in the ground. It requires a perfectly seated frame that can handle the sheer force of road runoff during heavy precipitation events. Mega Paving Risers provides 3-sided and 4-sided catch basin solutions that prevent bypass and ensure every gallon of water enters the municipal system as intended.

Anti-Bypass Flange

Ensures water enters the basin without seeping under the frame.

Slope Tapering

Precision-angled frames to match road crown and curb gradients.

Debris Guard

Integrated seating prevents sediment from entering the drainage structure.

Galvanized Steel

Hot-dip protection for maximum life in high-moisture environments.

Hydraulic Data Sheet

Grate CompabilityStandard Type R, C, & V
Wall Thickness0.5" Reinforced Structural
Yield Strength36,000 PSI Minimum
Coating StandardASTM A123 Galvanizing
Rise CapacityAdjustable 1" to 8"
Critical Bypass Prevention Technology

3-Sided vs.
4-Sided Solutions

Different drainage structures require different seating geometries. We offer 3-sided risers for curb-back inlets and full 4-sided frames for flat street grates.

  • 3-Sided: Optimized for curb abutments
  • 4-Sided: Reinforced for open roadway grates
  • Sloped: Custom tapered for road crowning
  • D-Shape: Specialized perimeter profiles

Blueprints Ready

Custom Fabrication
For Any Catch Basin

Secure Your
Gutter Flow

"Preventing street flooding begins with precision at the pavement level."