Ductile Iron Pipe Research Association

Golden, US 80402


About Ductile Iron Pipe Research Association


Golden, US 80402

More Info on Ductile Iron Pipe Research Association

From its inception more than 100 years ago, the Ductile Iron Pipe Research Association (DIPRA) has provided accurate, reliable, and essential engineering information about cast iron—and now Ductile Iron—pipe to a wide variety of utilities and consulting engineers.

Products & Press Releases

Collection Systems

Pipe Protection

Aug. 16, 2018
V-Bio is an evolutionary advancement in pipe protection that adds a new dimension to ductile iron pipe’s long service life. It is a co-extruded polyethylene encasement encased...

Articles & News

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Collection Systems

DIPRA Announces New Life Cycle Cost Analysis Model

Aug. 1, 2016
Tool helps utility decision-makers determine cost-effective materials
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How To: Sewer Maintenance: Pipe Down

Nov. 6, 2015
The impact of underground sewer pipe maintenance & design
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Collection Systems

Spanning Generations

Jan. 15, 2015
A 55-year history of polyethylene encasement