National Program for Inspection of Non-Federal Dams. Bradley Hubbard Reservoir Dam (CT 00132), Quinnipiac River Basin, Meriden, Connecticut. Phase I Inspection Report.
CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV
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The project, built about 1891 has a total length of 545 feet consisting of a 340-foot masonry core with earth fill on the upstream and downstream sides, a 115 foot long earth embankment at the right end of the dam, and sections of concrete corewall at each end. A 71-foot broad-crested masonry spillway is located at the central portion of the dam. The top of the dam elevation 312.0 is 7 feet wide and 16.5 feet above the Harbor Brook streambed. The maximum storage capacity with the pond level to the top of the dam is approximately 216 acre-feet of water. A gatehouse, located upstream and adjacent to the right end of the spillway, contains two valves which regulate a 20-inch blowoff and a 12-inch supply main which once led to the Bradley and Hubbard Corp. In accordance with the Army Corps of Engineerss Guidelines, Bradley Hubbard Reservoir Dam is classified as a high hazard, small size dam. The test flood range is from one-half to full Probable Maximum Flood PMF. The selected test flood for Bradley Hubbard Reservoir Dam is equivalent to the PMF. Peak inflow to the reservoir at the test flood is 1500 cubic feet per second cfs peak outflow is 1325 cfs with the dam overtopped by 0.9 feet. The spillway capacity with the reservoir level to the top of the dam is 223 cfs, which is equivalent to 17 of the routed test flood outflow.
- Hydrology, Limnology and Potamology
- Civil Engineering