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.
