Colorado Precast Concrete offers a wide variety of products for Storm Water Management.

We cast the structures to your specifications and supply the cast iron grates and ring & covers.

  • Type R Inlets
  • Type 13 and 16 Inlets
  • Type C Inlets
  • Area Inlets
  • Manholes
  • Water Quality Outlet Structures
  • Sand & Oil Interceptors



Storm Inlets

Colorado Precast Concrete offers standard CDOT and WYDOT storm inlet boxes  built with blockouts to accept storm pipe.  …


Standard Size Manholes

The standard inside diameters are 4, 5, 6, 8, 10 and 12 foot. Our manholes meet ASTM C-478

SO Feature Photo

Sand and Oil Interceptors

Sand and Oil Interceptors have a variety of applications, such as car washes and commercial garages. Sand and …