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. Longwater Pond Dam (MA 00171), Taunton River Basin, Easton, Massachusetts. Phase I Inspection Report
Longwater Pond Dam is a 200-foot long, 10-foot high earth dam. The upstream face of the dam is a vertical concrete wall with earth fill at the toe, and the downstream face is a vertical stone masonry wall. The outlet works consist of a central outlet plus a side channel spillway located to the right of the outlet. The intake to the central outlet is 7 feet by 7.5 feet and controlled by a dual set of stoplogs. The crest of the side channel spillway is 1 foot wide, 85 feet long and 6 feet wide. There are deficiencies which must be corrected to assure the continued performance of this dam. The following signs of distress were noted at the site: absence of riprap on the upstream slope of the dam below the concrete wall; uncompacted earth fill adjacent to the left abutment of the outlet; scoured and eroded concrete on the outlet works; and spalling on the crest of the side channel spillway; cracking and local depressions in the pavement on the crest of the dam. The stoplogs were replaced shortly after the inspection, and the pond level returned on a higher elevation. At a second visit to the site, seepage was noted through the crest of the spillway. The spillway can discharge 50 percent of the test flood.
National Program for Inspection of Non-Federal Dams. Longwater Pond Dam (MA 00171), Taunton River Basin, Easton, Massachusetts. Phase I Inspection Report
Longwater Pond Dam is a 200-foot long, 10-foot high earth dam. The upstream face of the dam is a vertical concrete wall with earth fill at the toe, and the downstream face is a vertical stone masonry wall. The outlet works consist of a central outlet plus a side channel spillway located to the right of the outlet. The intake to the central outlet is 7 feet by 7.5 feet and controlled by a dual set of stoplogs. The crest of the side channel spillway is 1 foot wide, 85 feet long and 6 feet wide. There are deficiencies which must be corrected to assure the continued performance of this dam. The following signs of distress were noted at the site: absence of riprap on the upstream slope of the dam below the concrete wall; uncompacted earth fill adjacent to the left abutment of the outlet; scoured and eroded concrete on the outlet works; and spalling on the crest of the side channel spillway; cracking and local depressions in the pavement on the crest of the dam. The stoplogs were replaced shortly after the inspection, and the pond level returned on a higher elevation. At a second visit to the site, seepage was noted through the crest of the spillway. The spillway can discharge 50 percent of the test flood.
National Program for Inspection of Non-Federal Dams. Longwater Pond Dam (MA 00171), Taunton River Basin, Easton, Massachusetts. Phase I Inspection Report
1979
62 pages
Report
No indication
English
Civil Engineering , Dams , Reservoirs , Inspection , Ponds , Concrete , Walls , Earth fills , Spillways , Deficiencies , Shores , Protection , Safety , Compacting , Erosion , Spallation , Cracks , Test methods , Floods , Visual inspection , Massachusetts , National Dam Inspection Program