• Economical, durable, rugged, easily installed and maintained and is readily available to meet your Corrugated Metal Pipe (CMP) drainage needs.
  • Corrugated Steel Pipe (CSP) with the highest service life, strength and hydraulic properties.

We provide corrugated steel pipe for use in culverts, subdrains, sewers, service tunnels, recovery tunnels, etc

Benefits of Corrugated Metal Pipe CMP include:

  • Long service life – capable of 100+ years
  • Superior Hydraulics – fabricated fittings provide superior hydraulics by minimizing energy losses at junctions
  • Durable coating options to fit your needs
  • Great strength – the strength and integrity of steel-soil structure interactions are almost unlimited
  • 100% traceability – with verifiable data reports from the producing steel mills
  • Allowable fill heights over 100 feet and minimum covers as low as 12 feet

Corrugated Steel Pipe Usage Guidelines

Protective Coatings & PavingsStandard SpecificationsEnvironmental ConditionsAbrasionProvides Additional Soil Slide Protection
NormalMildly CorrosiveCorrosiveNon- Abrasive Level 1Low Abrasion Level 2Moderate Abrasion Level 3Severe Abrasion Level 4
Zinc Coated (Galvanized)AASHTO M36ASTM A929Green CircleGreen CircleGreen CircleGreen Circle
Aluminum Coated Type 1AASHTO M36ASTM A929Green CircleGreen CircleGreen CircleGreen Circle
Aluminum Coated Type 2AASHTO M274ASTM A929Green CircleGreen CircleGreen CircleGreen Circle
Bituminous CoatedAASHTO M190ASTM A849Green CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen Circle
Bituminous Coated & PavedAASHTO M190ASTM A849Green CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen Circle
Polymerized Bituminous Invert Coated*ASTM A849Green CircleGreen CircleGreen CircleGreen Circle
Polymer PrecoatedAASHTO M245ASTM A742Green CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen Circle
Polymer Precoated and PavedAASHTO M245ASTM A742Green CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen Circle
Aramid Fiber BondedASTM A885Green CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen Circle
Bituminous CoatedAASHTO M190ASTM A849Green CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen Circle
Aramid Fiber Bonded & Bituminous PavedASTM A885Green CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen CircleGreen Circle
High Strength Concrete LinedASTMA849ASTM A979Green CircleGreen CircleGreen CircleGreen CircleGreen Circle
Concrete Paved Invert (75mm (3″) Cover)ASTM A849ASTM A979Green CircleGreen CircleGreen CircleGreen CircleGreen Circle

* Use Bituminous Coated Guidelines for Fully Coated Product. This Guide is not a substitute for professional engineering advice and is made without guarantee or representation as to results. Although every reasonable effort has been made to assure its accuracy, neither the National Corrugated Steel Pipe Association nor any of its members or representatives warrants or assumes liability or responsibility for its use or suitability for any given application.