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Utility Products

Quality, Economic Precast Concrete Utility Vaults and Manholes

manhole-tanWe produce utility vaults in—Standard, Custom, and Special. Each is manufactured to comply with the same structural and material specifications to assure uniform quality. All manholes are designed H-20 rated with 5,000 PSI concrete. Custom loading available. Many accessory options are available.


Standardized Vaults and Manholes

Adaptable to many situations:

  • Fixed construction details—2 piece construction with slab and adjacent wall section monolithic
  • Knockout panels
    • Standard sizes and locations in each wall top and bottom accommodate various duct bank sizes and elevations
    • Are 3” thick concrete with no rebar for fast, easy tie-in with duct banks
    • Knockouts must be confined to areas provided
  • Inserts
    • 1/2” diameter bolting inserts located in all inside wall areas
    • 20” on center vertically, 24” on center horizontal

Save time and money. Specify Standard Vaults. Advantages include:

  • Economy—standardized models are lighter, easier and less expensive to ship and install
  • Flexibility—adaptable to a wide range of field situation; allows field adjustments
  • Simplicity—eliminates detailed layout and customized casting of knockout panels
  • Availability—from stock and 30” access opening, 12” square closed sump, ground rod sleeve
  • Dominion, Verzion, PEPCO, BG&E approved vaults

Standard Precast Utility Manholes and Vaults Inside Dimensions

Standard Precast Utility Manholes and Vaults Inside Dimensions
ModelLengthWidthHeightWeight
Model 1680 MH 16'0" 8'0" 8'0" 52,800 lbs.
Model 1490 MH 14'0" 9'0" 7'0" 49,600 lbs.
Model 1290 MH 12'0" 9'0" 6'6" 26,906 lbs.
Model 1260 MH 12'0" 6'0" 6'6" or 7'0" 27,562 lbs.
Model 1080 MH 10'0" 8'0" 6'6" 33,360 lbs.
Model 1060 MH 10'0" 6'0" 6'6" 24,062 lbs.
Model 1010 MH 10'0" 10'0" 6'6" 38,255 lbs.
Model 888 MH 8'0" 8'0" 8'0" 26,906 lbs.
Model 880 MH 8'0" 8'0" 6'6" 26,906 lbs.
Model 860 MH 8'0" 6'0" 6'6" 20,562 lbs.
Model 840 MH 8'0" 4'0" 6'6" 16,462 lbs.
Model 660 MH 6'0" 6'0" 6'6" 16,718 lbs.
Model 640 MH 6'0" 4'0" 6'6" 15,006 lbs.
Model 550 MH 5'0" 5'0" 6'6" to 8'0" 14,402 lbs.
Model 540 MH 5'0" 5'0" 6'6" 12,500 lbs.
Model 446 MH 4'0" 4'0" 6'0" 11,298 lbs.
Model 444 HH 4'0" 4'0" 4'0" 8,373 lbs.
Model 334 HH 3'0" 3'0" 4'0" 6,010 lbs.
Model 333 HH 3'0" 3'0" 3'0" 6,010 lbs.


Customized Utility Vaults and Manholes

The custom line can accommodate certain job requirements the standard line can’t.

  • Meter and valve vaults meet D.C. DPW, WSSC, FCWA and other standards
  • 6” thick wall panels throughout provide few limitations on knockout sizes and locations
  • Allows openings in joint and beam areas
  • Various inside heights are available by using one or more intermediate riser sections
  • Available with other non-standard details for sump and access openings, insert placement, reinforcing steel schedule, removable top slabs, frames and covers cast or grouted in, pipe sleeves, water proofing, steps, etc
  • Requires shop drawing

Custom Precast Utility Manholes and Vaults Inside Dimensions

Custom Precast Utility Manholes and Vaults Inside Dimensions
ModelLengthWidthHeightWeight
Model 1680 CUS 16'0" 8'0" 8'0" 60,750 lbs. (Less Knockouts)
Model 1490 CUS 14'0" 9'0" 7'0" 53,600 lbs. (Less Knockouts)
Model 1290 CUS 11'6" 8'6" 7'6" 49,713 lbs. (Less Knockouts)
Model 1260 CUS 12'0" 6'0" 6'6" or 7' 33,905 lbs. (Less Knockouts)
Model 1080 CUS 10'0" 8'0" 6'6" 37,260 lbs. (Less Knockouts)
Model 1060 CUS 10'0" 6'0" 6'6" 27,706 lbs. (Less Knockouts)
Model 1010 CUS 10'0" 10'0" 6'6" 41,655 lbs. (Less Knockouts)
Model 1000 CUS 9'6" 5'6" 6'6" 28,831 lbs. (Less Knockouts)
Model 888 CUS 8'0" 8'0" 8'0" 28,674 lbs. (Less Knockouts)
Model 880 CUS 8'0" 8'0" 6'6" or 7'0" 28,674 lbs. (Less Knockouts)
Model 860 CUS 8'0" 6'0" 6'6" 23,656 lbs. (Less Knockouts)
Model 840 CUS 8'0" 4'0" 6'6" 19,006 lbs. (Less Knockouts)
Model 660 CUS 6'0" 6'0" 6'6" 19,606 lbs. (Less Knockouts)
Model 640 CUS 6'0" 4'0" 6'6" 17,344 lbs. (Less Knockouts)
Model 550 CUS 5'0" 5'0" 6'6" to 8'0" 15,586 lbs. (Less Knockouts)
Model 540 CUS 5'0" 4'0" 6'6" to 8'0" 14,250 lbs. (Less Knockouts)
Model 446 CUS 4'0" 4'0" 6'0" 12,557 lbs. (Less Knockouts)
Model 444 CUS 4'0" 4'0" 4'0" 9,632 lbs. (Less Knockouts)
Model 334 CUS 3'0" 3'0" 4'0" 6,882 lbs. (Less Knockouts)
Model 333 CUS 3'0" 3'0" 3'0" 6,880 lbs. (Less Knockouts)


Specialized Utility Vaults

Specials are utility vaults that have been specially designed for a specific purpose or adapted to a particular application. These vaults are engineered to any practical size.

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