Products > Infrastructure
Manhole Frames & Covers
Whether by car or on foot, chances are you’ve traversed a Neenah Foundry manhole cover. Millions of our flagship products can be found in cities all across the country. We manufacture cast iron manhole frames and covers in various sizes, shapes, and designs, including logo customization for large projects.
Innovative Safe and Secure Manhole Covers
Neenah Foundry supplies high security and controlled pressure release covers to critical infrastructure companies and projects. Our InfraLOCK locking manhole cover provides access control to communications and electrical vaults as well as reducing potential for tampering with water supply and sewage systems.
Our Controlled Pressure Release covers mitigate potential damage or injury from rapid changes in pressure and explosions within vaults by allowing pressure to vent from below the lid, while keeping the lid engaged with the frame. We supply these to the largest electrical distribution companies in the U.S.
Our InfraLOCK Release provides the same high security access control as InfraLOCK while also allowing pressure to vent in the case of an explosion or other pressure buildup within the vault.
Click here to learn more about Neenah Foundry's manhole safety and security solutions.