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Pre-fabricated Concrete Underground Utility Boxes are manufactured with all the advantages of precast standards: experienced personnel, uniformity of materials, heavy steel forms, intense vibration and detailed supervision. Precast Manholes are built conforming to applicable design specifications. They comply with the PREPA, PRHTA Precast Manhole requirements and specifications.

Manholes are manufactured using the conduit terminators according to a desired configuration approved by PRTC and PREPA.
The complete precast manhole includes a concrete collar and a cast-iron frame cover.

PREPA MANHOLES

INTERIOR DIMENSIONS

TOTAL WEIGHT

REMARKS

10’-0” X 7’-0” X 8’-0”

30,200 LBS

URD-31

12’-0” X 6’-0” X 7’-0”

32,205 LBS

URD-32

12’-0” X 6’-0” X 8’-0”

34,000 LBS

URD-33

9’-0” X 12’-0” X 8’-0”

44,000 LBS

URD-35

8’-8” X 16’-6” X 8’-0”

52,000 LBS

38 KV OCTAGONAL STRAIGHT

8’-8” X 16’-6” X 8’-0”

52,000 LBS

38 KV OCTAGONAL 90° BEND

8’-8” X 16’-6” X 8’-0”

60,000 LBS

38 KV RECTANGULAR

20’-0” X 8’-0” X 8’-0”

66,000 LBS

115 KV

 

Electrical Manholes are designed for roadway. End bells configuration is as per project requirements. The standard frame & cover height is 10 inches. A riser section between 6” and 36” can be added to adjust to site conditions.