About DIPRA

Who We Are

From our 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.

Founded in 1915, the organization’s initial role was to promote the superior qualities of iron pipe through advertising programs. Over time, we have evolved to become a technically based and research-oriented organization. DIPRA provides a variety of resources such as publications and videos, representation on standards-making committees, technical research on applications-based topics (such as corrosion control and design of Ductile iron pipe), and personal technical services through our Regional Engineer Program.

boy drinking fountain
DIPRA's Commitment
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.
Member companies
Member Companies
DIPRA is a non-profit association supported by all Ductile iron pressure pipe manufacturers in North America. While DIPRA member companies have different names and locations, they share a common commitment to produce and deliver the finest quality water and wastewater pipe material in the world: Ductile iron pipe. DIPRA member companies together represent 650 years worth of experience in applied research and manufacturing.
ace19 group shot
Meet the DIPRA Staff
Our team is comprised of a diverse group of professionals dedicated to informing and educating about the benefits, design and application of Ductile iron pipe.
alliance meeting
DIPRA Alliances
DIPRA is committed to creating a sustainable future for our water infrastructure with environmentally friendly, long-lasting Ductile iron pipe. As part of this commitment, we have partnered with these organizations to continue helping utility leaders, elected officials, and professional engineers understand and appreciate the many advantages that Ductile iron pipe offers to water and wastewater utilities and their customers.
lake scape
DIPRA's Environmental Commitment
The Ductile Iron Pipe Research Association (DIPRA) member companies will uphold the following principles in all of their business activities through management commitment, employee involvement, and allocation of adequate personnel and other resources.