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Slotted Drain™

Slotted Drain™Efficiently Remove Surface Water on Streets and Parking Lots

Slotted Drain pipe is a practical, aesthetically pleasing inlet for the removal of surface water on streets and highways. It's also widely used in parking lots to remove sheet flow without multiple grades or water channeling devices.

Slotted Drain pipe is fabricated from Contech Corrugated Steel Pipe, which is cut along a longitudinal axis. A trapezoidal or straight-sided grate with reinforcing spacer plates is welded in place to form a 1 3/4”-wide slot opening which collects runoff and channels it to the pipe below.

Contech Slotted Drain has been used at countless locations throughout the United States for more than 40 years simply because it is the most effective solution to water removal problems. It is a versatile and cost-effective solution for surface water removal on many sites.
Benefits of Slotted Drain:
  • Improved drainage efficiency - Intercepts up to 50% more runoff than most standard 2’ x 2’ grate inlets
  • Proven structure - thick grate and spacer plates - Structurally sound, resists deformation under heavy traffic loads and thermal expansion
  • Extends only 2” from curb - Eliminates hazardous dips and ponding, and minimizes hazards to two-wheel vehicles
  • Straight-sided grate - Resists clogging and retains effectiveness even when a localized blockage occurs in one area
  • No hardware of heavy grate - Easy to maintain
  • Simple design - Easy to install

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Slotted Drain for Drainage

Slotted Drain for DrainageSlotted Drain is a continuous opening inlet that efficiently removes surface water on streets and highways. The grate on a standard 20-foot length of Slotted Drain will intercept up to 50% more runoff than most standard 2’ x 2’ grate inlets. In parking lots, Slotted Drain removes sheet flow without complex multiple grades or water channeling devices like asphalt dikes, berms and curbs.


MR Credit 4 – Recycled Content, 1-2 Points

Intent – Increase the demand for building products that incorporate recycled content materials. The sum of post-consumer recycled content plus one-half of the pre-consumer content constitutes at least 10% (1 point) or 20% (2 points), based on cost, of the total value of the materials in the project.

Potential Contribution: Contech Metal Pipe and Structures
  • Steel is the most recycled material in the world
  • Up to 80% recycled content

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