A pipe with a smooth interior, is the material of choice for storm sewer applications and a lower cost alternative to reinforced concrete pipe. The smooth interior improves hydraulic capacity (Manning’s “n” = 0.012, equal to concrete pipe) while the exterior box ribs provide structural strength.
Polymer Coated CMP
Since CMP weighs less than 10% of concrete pipe, handling and installation costs are greatly reduced. Aluminum has only 1/35 the weight of concrete pipe.
Lower labor costs also result from fast and easy joining, joints or coupling bands do not require special skills or tools. Twenty-foot standard lengths mean fewer joints and faster laying.
Shop-fabricated fittings save installation time in the field while providing hydraulically efficient junctions.
Steel pipe with a heavy-gage polymer coating; protects against abrasion and corrosion to provide a service life of 100+.
- Diameters 18”-120”
- Wall thicknesses of 16, 14, 12, and 10 gage
- 3/4” x 3/4” x 7-1/2” continuous rib corrugation
- Standards lengths are 20’-40’
- Full Round – recommended for most applications
- Pipe-Arch – used in limited headroom conditions. The low, wide pipe-arch design distributes the flow area horizontally, providing hydraulic capacity without lowering the grade.
- Culverts, canals and ditch enclosures
- Storm sewers
- Stormwater Detention
- Reline for drainage structures and culverts