National Corrugated Steel Pipe Association - Sustainable. Resilient. Steel.

CSP Coatings Allow For A Service Life Up To 100 Years
Over the past 50 years, CSP has gone through an evolutionary process resulting in better materials, with a longer service life in challenging environments.
Over the past 50 years, CSP has gone through an evolutionary process resulting in better materials, with a longer service life in challenging environments.
Steel Is The Smart Choice For Saving Failing Structures
CSP systems have been employed for almost a century in rehabilitation projects, providing a cost savings and reducing the disruption caused by the removal of old structures.
CSP systems have been employed for almost a century in rehabilitation projects, providing a cost savings and reducing the disruption caused by the removal of old structures.
Free Download
Corrugated Steel Pipe Design Manual
Download your FREE copy of the NCSPA's Corrugated Steel Pipe Design Manual today!
Download your FREE copy of the NCSPA's Corrugated Steel Pipe Design Manual today!
Steel: Resilience & Strength
Steel’s durability, noncombustibility and strength make it an inherently resilient design material. Mobile mills allow production on site for the fastest project completion available.
Steel’s durability, noncombustibility and strength make it an inherently resilient design material. Mobile mills allow production on site for the fastest project completion available.
100% Made In
America Steel
Nearly all American structural steel (98%) is captured at the end of its life and recycled into new American steel products. One American job is created for every 45 tons of structural steel produced, fabricated, and erected in the United States.
Nearly all American structural steel (98%) is captured at the end of its life and recycled into new American steel products. One American job is created for every 45 tons of structural steel produced, fabricated, and erected in the United States.
Steel Is Fully Customizable & Versatile
Corrugated steel pipe & plate is offered in a wide range of sizes & lengths. Custom fabricated joints & tees gives steel the most flexible design parameters of any drainage material
Corrugated steel pipe & plate is offered in a wide range of sizes & lengths. Custom fabricated joints & tees gives steel the most flexible design parameters of any drainage material
Strength & Sustainability Matters
We are proud to say that Steel holds the title of the most sustainable storm water solution on the market today. It is 100 percent recyclable, which means it can be recycled into the same material of the same quality again and again.
We are proud to say that Steel holds the title of the most sustainable storm water solution on the market today. It is 100 percent recyclable, which means it can be recycled into the same material of the same quality again and again.

Real Deal on Steel E-News

Pembina County Extension – 2016 DOT Project of the Year Winner

e-news | Projects of the Year

By: TrueNorth Steel The North Dakota Department of Transportation has been busy with this crossing on I-29 at the Canadian…

Dallas County, IA – 2014 Corrugated Steel Pipe and Pipe Arch Project of the Year

By: Metal Culverts, Inc A landowner in Dallas County, Iowa, required access to his farmland but the existing bridge was…

Smith Ford Crossing – 2015 Corrugated Steel Pipe and Pipe Arch Project of the Year

e-news | Projects of the Year

By: Pacific Corrugated Pipe This half round CSP structure, with its own footing plates, was designed by Pacific Corrugated Pipe…

University of West Georgia stormwater reuse cisterns

University of West Georgia Cisterns – 2013 Retention/Detention Project of the Year

By: Southeast Culvert Federal regulations and prolonged drought in Georgia have forced engineers and specifiers to become creative in storage…

Minnesota State Highway 10 – 2013 DOT Project of the Year

By: TrueNorth Steel In June 2012, Duluth, MN, had a record 7 inches of rain in a two-day period that…

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CSP Coatings Allow For A Service Life Up To 100 Years

Steel Is The Smart Choice For Saving Failing Structures

Free Download Corrugated Steel Pipe Design Manual

Steel: Resilience & Strength

100% Made In America Steel

Steel Is Fully Customizable & Versatile

Strength & Sustainability Matters

Real Deal on Steel E-News

Free Download
Corrugated Steel Pipe Design Manual

100% Made In
America Steel