Manholes
Jefferson Concrete Corp. produces manholes with 48”, 60”, 72”, and 96” inside diameter, which conform to ASTM C478 to meet your storm and sanitary needs.
*Our manholes can be manufactured to include custom openings or flexible pipe-to-pipe manhole connectors and can be used for pump stations, wet wells, grit chambers, oil/water separators, and storm water management structures. Various openings are available in the top slabs to accommodate castings or access hatches.
Sizes:
- 48” Diameter
- 48” Diameter Benched Manhole Base
- 60” Diameter
- 72” Diameter
- 96” Diameter
Drawings
- 48 Inch Diameter MH
- 48 MH COVER
- 48 MH EXTENDED BENCHED
- 60 Inch Diameter MH
- 60 MH COVER
- 72 Inch Diameter MH
- 72 MH COVER
- 96 Inch Diameter MH
- 96 MH COVER
Stock Castings
Stock Castings
- 00131033 Grease
- 00131024 Plain
- 00131025 Sanitary
- 00131029 Storm
- 00131059 Water
- 00120325 Plain
- 00120321 Sanitary
- 00120329 Storm
- 00132221 Plain
- 00132248 Sanitary
- 00132247 Storm
