National Program for Inspection of Non-Federal Dams, Black Brook Dam (MA 01057), Connecticut River Basin, Blandford, Massachusetts. Phase I Inspection Report.
CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV
Pagination or Media Count:
The Black Brook Dam is an earthfill embankment about 1168 feet in length, and 60 feet in height and has a reinforced concrete principal spillway which maintains the water supply pool level and controls the release of stored floodwater, and a 50 foot wide earth and ledge excavated emergency spillway channel in the right abutment. The dam and appurtenances were found to be in fair condition. The visual inspection indicated that silt from under the upstream riprap is being washed out by runoff and wave action to form small deltas in the pond, the trash rack on the riser has been damaged, the toe of the dam is wet along the abutments and the floor of the discharge channel of the emergency spillway is wet. Some maintenance and minor remedial work is required. The combined spillways have a capacity of about 5000 CFS with the water level at the top of the dam. This capacity is about 185 of the routed test flood outflow from the reservoir.
- Hydrology, Limnology and Potamology
- Civil Engineering