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New Culvert


No other type of drainage structure offers the range of structural strength that's available with corrugated metal pipe.  CMP is used for drainage system applications including storm sewers, culverts, and stormwater detention.

Corrugated Metal Pipe (CMP)


multi plate

Developed over 75 years ago, MULTI-PLATE is available in spans to 26 feet and can be arranged and curved to make a variety of shapes including pipe, pipe-arch, horizontal and vertical ellipses, arches, and underpasses.

Aluminum Box Culvert

Aluminum Box Culverts are a practical and cost-effective solution for small bridge replacement. The wide-span, low-rise shapes are lightweight as well as fast, and easy to install. Spans to 35 feet.



Corrugated metal pipe (CMP) is the “go-to” material for the majority of detention and infiltration projects. Contech’s CMP detention and infiltration systems and can be sized and shaped to meet site-specific needs.


High Density Polyethylene (HDPE)

HDPE is lightweight and super-strong. HDPE is an excellent replacement for heavier and more expensive metal pipe since its resistance is so high.

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