Rice Cast-Iron Manhole Covers

The lid and rim of all Rice Manholes are constructed of cast iron with the rim riveted and spot welded to a sheet metal skirt. The warning "OBSERVATION MONITORING WELL, DO NOT FILL" and a three inch triangle are cast on the lid. A three inch black wear resistant plastic triangle printed "NO FILL" is epoxied to the lid.

Sizes Description:

  • 7" x 10" Bolt Down
  • 8" x 8" Regular
  • 8" x 8" Bolt Down
  • 12" x 7" Bolt Down
  • 4 1/2" x 10" Regular
  • Manholes in sizes up to 48" in diameter are available

Close block


  • 3" black plastic triangle warning
  • 3/8" stainless steel bolts
  • Nylon and Neoprene rubber washers on each bolt
  • 1/8" Neoprene gasket under lid
  • Painted with high gloss enamel designed to withstand adverse conditions
  • Replacement lids and parts available
  • Limited access (bolts discourage tampering)


  • Custom printed lids (Company name can be cast on lid)
  • Custom printed triangle inserts (company name, address and phone number can be printed on wear resistant plastic triangle and epoxied on lid in place of "NO FILL" triangle)