Our 23-3/4 inch composite manhole covers are an ideal direct replacement for 23-3/4″ cast iron manhole covers and 23-3/4″ CI manhole lids. These FRP/GRP composite 23-3/4 inch manhole covers and lids have zero scrap value. Would be thieves simply move on when they find out they are not dealing with common cast iron 23-3/4″ manhole lids. These FRP or Polymer 23-3/4 inch manhole lids are much lighter than traditional cast iron manholes of the same size, yet are fully traffic rated (40,000# proof load per AASHTO M-306, H-20). This 23-3/4″ manhole cover measures 23 3/4″ outside diameter and fits most 23 1/2″ to 24″ frames. These plastic 23-3/4 in manhole lids improve worker safety and help prevent back and finger injuries that are common with 24 inch cast iron lids.
Our heavy duty 23 3/4 inch (actual diameter) manhole lids feature a diamond pattern slip-resistant surface. The manhole lid is secured using a heavy duty coated worm gear operated by a corrosion resistant pentagon bolt from street level. Learn more about 23 3/4 inch frp manhole covers and other fiberglass and composite manhole covers. Also consider our full line of fiberglass manhole covers with frames.