Neenah Foundry Company
About
Neenah Foundry Company, now operating under Charlotte Pipe and Foundry Infrastructure alongside sister brands U.S. Foundry and Bingham & Taylor, brings over 450 years of combined foundry expertise to the manufacture of cast iron and ductile iron infrastructure products. Headquartered in Neenah, Wisconsin under CEO Vik Bhatia, the company produces the castings that underpin underground utility networks across virtually every U.S. municipality. Their manhole frame and cover line features two notable innovations: the Controlled Pressure Release Manhole Cover, which lifts up to four inches to vent explosive pressures while remaining secured in its frame, and the InfraLOCK high-security locking system with a pick-resistant, weather-sealed lock mechanism. An InfraLOCK Release variant combines both explosion pressure relief with maximum security. Beyond manhole infrastructure, Neenah manufactures inlet frames and grates for stormwater collection, trench frames and grates for surface drainage, heavy-duty airport castings rated for aircraft loads, bridge drainage products, ADA-compliant detectable warning plates, downspout boots connecting building drainage to storm sewers, and underground access covers and hatch assemblies. The company's products meet BABA (Build America/Buy America Act) compliance requirements, making them eligible for federally funded infrastructure projects including data center construction. Neenah maintains an extensive distribution and support network spanning the U.S., Canada, the Caribbean, Puerto Rico, and South America, and actively participates in key industry events including AWWA ACE, WEFTEC, and PWX.
Key Products
Cast iron and ductile iron manhole frames and covers for underground utility access, including standard, heavy-duty, and Controlled Pressure Release variants.
High-security locking manhole cover system preventing unauthorized access to underground water, sewer, and utility infrastructure.
Stormwater drainage inlet frames and grates for street and roadside water collection and conveyance into storm sewer systems.
Trench drainage frames and grating for surface water management in pedestrian, vehicular, and industrial applications.
Heavy-duty cast iron frames and covers rated for aircraft loads at airports and aviation facilities.
Drainage castings designed for bridge deck water collection and conveyance.
ADA-compliant truncated dome warning plates for pedestrian safety at curb ramps and transit platforms.
Cast iron fittings connecting downspout drainage to underground storm sewer systems.
Underground access covers and hatches for water, sewer, and utility vaults providing secure entry for maintenance personnel.
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