Most manhole plates are designed to resist water intrusion but are not completely waterproof. Specialized gasketed or watertight covers are available for applications where preventing water infiltration is critical.
How long until you have to replace your manhole plate?
A manhole plate should be replaced when it becomes cracked, excessively worn, corroded, loose, or no longer provides a secure fit. With proper maintenance, many cast iron covers last several decades.
What material is a manhole plate made of?
Most manhole plates are made from cast iron because of its strength, durability, and ability to withstand heavy traffic loads. Some applications also use ductile iron, steel, or composite materials.
When should you change your manhole plate?
Replace a manhole plate if it is damaged, unstable, excessively corroded, or no longer meets load or safety requirements. Regular inspections can identify when replacement is necessary.
Bronx, NY 10474
