A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
National Program for Inspection of Non-Federal Dams. Blue Hills Dam (CT 00496), Connecticut River Basin, Bloomfield, Connecticut. Phase I Inspection Report
Blue Hills Dam consists of an earth embankment, 4,045 ft. long with a top width of 12 ft. and a maximum height of 24.5 ft. In addition, there is a 1,450 ft. long dike running parallel to Blue Hills Avenue, which is 10 ft. wide at the top and has a maximum height of 6 ft. The two outlets for the dam are the unregulated principal spillway and emergency spillway. The principal spillway is a drop inlet structure consisting of a two stage reinforced concrete intake riser discharging through a 30-in. diameter, 153 ft. long reinforced concrete pipe under the dam embankment. The emergency spillway is trapezoidal grassed channel, 210 ft. wide at the control section with its crest 6.1 ft. below the top of the dam. Based on visual inspection and review of available plans and reports, Blue Hills Dam is judged to be in good condition. Some features found existing that could affect the stability of the dam are standing water at the seepage drain outlet nearest the emergency spillway and wheel ruts and minor erosion gullies on the crest and slopes. The dam is a flood control project and, therefore, the reservoir is dry except during periods of heavy rainfall. With the reservoir dry, the inspection could not reveal seepage conditions. The spillway is capable of passing 600% of the routed test flood outflow without overtopping the dam.
National Program for Inspection of Non-Federal Dams. Blue Hills Dam (CT 00496), Connecticut River Basin, Bloomfield, Connecticut. Phase I Inspection Report
Blue Hills Dam consists of an earth embankment, 4,045 ft. long with a top width of 12 ft. and a maximum height of 24.5 ft. In addition, there is a 1,450 ft. long dike running parallel to Blue Hills Avenue, which is 10 ft. wide at the top and has a maximum height of 6 ft. The two outlets for the dam are the unregulated principal spillway and emergency spillway. The principal spillway is a drop inlet structure consisting of a two stage reinforced concrete intake riser discharging through a 30-in. diameter, 153 ft. long reinforced concrete pipe under the dam embankment. The emergency spillway is trapezoidal grassed channel, 210 ft. wide at the control section with its crest 6.1 ft. below the top of the dam. Based on visual inspection and review of available plans and reports, Blue Hills Dam is judged to be in good condition. Some features found existing that could affect the stability of the dam are standing water at the seepage drain outlet nearest the emergency spillway and wheel ruts and minor erosion gullies on the crest and slopes. The dam is a flood control project and, therefore, the reservoir is dry except during periods of heavy rainfall. With the reservoir dry, the inspection could not reveal seepage conditions. The spillway is capable of passing 600% of the routed test flood outflow without overtopping the dam.
National Program for Inspection of Non-Federal Dams. Blue Hills Dam (CT 00496), Connecticut River Basin, Bloomfield, Connecticut. Phase I Inspection Report
1981
107 pages
Report
No indication
English