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National Program for Inspection of Non-Federal Dams. Collins Company Upper Dam (CT 00674), Connecticut River Basin, Canton, Connecticut. Phase I Inspection Report
The dam facility consists of a 325 foot long masonry spillway and a 335 foot long earthen embankment which span the Farmington River and are referred to as the main dam. The top of the earthen embankment is approximately 32 feet above the downstream riverbed. There are two other dams adjacent and perpendicular to the downstream face of the main dam. The 100 foot long forebay dam impounds the forebay, the body of water downstream of the left end of the dam which is utilized for industrial purposes by the adjacent factory. The wing dam, a 200 foot long abutment consisting of a 160 foot long spillway and a 40 foot long abutment located at the right end of the main dam, was originally intended to route flow to an adjacent powerhouse, which is no longer operational. Outflow from the project is over the three dam spillways and through eight sluice gates on the main dam, one mid-level and three low level sluices, as well as the closed intakes to the powerhouse, on the wing dam, and from a 42 inch square sluice and a 60 inch diameter pipe on the forebay dam. Based upon the visual inspection at the site, past performance of the dam, and existing data, this dam is judged to be in good condition. No evidence of instability was observed in the main dam or the two appurtenant dams. Based upon two existing flood plain reports and our computations, the spillway capacity is 55,000 cfs, which is equivalent to approximately 66% of the routed test flood outflow.
National Program for Inspection of Non-Federal Dams. Collins Company Upper Dam (CT 00674), Connecticut River Basin, Canton, Connecticut. Phase I Inspection Report
The dam facility consists of a 325 foot long masonry spillway and a 335 foot long earthen embankment which span the Farmington River and are referred to as the main dam. The top of the earthen embankment is approximately 32 feet above the downstream riverbed. There are two other dams adjacent and perpendicular to the downstream face of the main dam. The 100 foot long forebay dam impounds the forebay, the body of water downstream of the left end of the dam which is utilized for industrial purposes by the adjacent factory. The wing dam, a 200 foot long abutment consisting of a 160 foot long spillway and a 40 foot long abutment located at the right end of the main dam, was originally intended to route flow to an adjacent powerhouse, which is no longer operational. Outflow from the project is over the three dam spillways and through eight sluice gates on the main dam, one mid-level and three low level sluices, as well as the closed intakes to the powerhouse, on the wing dam, and from a 42 inch square sluice and a 60 inch diameter pipe on the forebay dam. Based upon the visual inspection at the site, past performance of the dam, and existing data, this dam is judged to be in good condition. No evidence of instability was observed in the main dam or the two appurtenant dams. Based upon two existing flood plain reports and our computations, the spillway capacity is 55,000 cfs, which is equivalent to approximately 66% of the routed test flood outflow.
National Program for Inspection of Non-Federal Dams. Collins Company Upper Dam (CT 00674), Connecticut River Basin, Canton, Connecticut. Phase I Inspection Report
1979
115 pages
Report
No indication
English