National Dam Inspection Program. Hartford Reservoir Number 6, East Dam (CT 00005), Southeast Dam & South Dike (CT 00678), South Dam (CT 00679), Connecticut River Basin, Tumble Brook, Bloomfield - West Hartford, Connecticut. Phase

摘要

The three dams are roughly 5050 feet long and consist of sections of earthen embankments separated from each other by areas of natural ground. These sections are the 550 foot long South Dam, the 750 foot long Southeast Dam with its appurtenant 250 foot long South Dike, and the 3500 foot long East Dam. The height of the dams varies considerably due to the undulating natural topography, and reaches a maximum of approximately 42 feet. Reportedly, there is a concrete corewall along the entire length of each dam. The spillway discharges into three 72 inch diameter conduits which empty into the stream channel at a concrete headwall approximately 150 feet downstream from the toe of the dam. Other outlets include a 24 inch tile pipe and a 30 inch reinforced concrete pipe, both located at the south end of the East Dam and both leading to Reservoir No. 5, two 66 inch diameter supply lines from the gatehouse to the filtration plant at the north end of the East Dam, and a 20 inch blowoff pipe also located near the north end of the East Dam. Based upon the visual inspection at the site and past performance, the dams are judged to be in good condition. No evidence of instability was observed in the dams or any of their appurtenant structures. There are some remedial measures which require attention. Based upon our hydraulics computations, the spillway capacity is 2560 cfs which is equivalent to 112 percent of the routed test flood outflow.