Drop Inlets

Surface Flow Control manufactures drop inlets. Our inlets are fabricated from CSP culvert and built on demand per specifications.


Drop inlets are vertical drop structure manufactured from pipe or concrete used to collect surface water from a depression or a low spot that filters water to a main horizontal discharge pipe.


  • Design and experienced consultation

  • Fabrication of Structures, Lids and Ladders

  • Capability for large and small projects

1200mm Catch Basin with HDPE Connection

Frame and Cover Access

Hinged Access

Grated Lids

Insulated Structure


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Call us: 780-460-4442