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A platform for research: civil engineering, architecture and urbanism
National Program for Inspection of Non-Federal Dams. Chartpak Dam MA 00758, Connecticut River Basin, Northampton, Massachusetts. Phase 1 Inspection Report
Chartpak Dam is approximately 220 feet long and has a maximum height of approximately 31 feet. A 95 foot wide overflow spillway is on the right side of the structure, while a 75 foot wide overflow spillway is on the left half of the structure. There are two outlet openings near the right end of the dam. The facility is considered in poor condition. This classification is based on the condition of the crest of the major spillway. Since 1966, the crest of the spillway has been allowed to unravel and at present 75 percent of the top course and 25 percent of the second course of stones at the crest are missing. It appears that the Owner intends to allow a slow failure to occur at the spillway until the dam breaches itself. Hydraulic analysis indicates that the spillway capacity with the water surface at the top of the dam is approximately 11,850 cfs, which is about 48 percent of the routed test flood outflow of 24,770 cfs. The test flood stage is about 4.1 feet above the top of the dam. Investigations are recommended to determine the safeguards required as the crest stones in the spillway unravel. Recommended remedial measures include the clearing of vegetation from the dam, the removal of an obstruction from the outlet pipe, the clearing of the approach channel to the overflow spillway and the providing of erosion protection at the top of the right end of the dam.
National Program for Inspection of Non-Federal Dams. Chartpak Dam MA 00758, Connecticut River Basin, Northampton, Massachusetts. Phase 1 Inspection Report
Chartpak Dam is approximately 220 feet long and has a maximum height of approximately 31 feet. A 95 foot wide overflow spillway is on the right side of the structure, while a 75 foot wide overflow spillway is on the left half of the structure. There are two outlet openings near the right end of the dam. The facility is considered in poor condition. This classification is based on the condition of the crest of the major spillway. Since 1966, the crest of the spillway has been allowed to unravel and at present 75 percent of the top course and 25 percent of the second course of stones at the crest are missing. It appears that the Owner intends to allow a slow failure to occur at the spillway until the dam breaches itself. Hydraulic analysis indicates that the spillway capacity with the water surface at the top of the dam is approximately 11,850 cfs, which is about 48 percent of the routed test flood outflow of 24,770 cfs. The test flood stage is about 4.1 feet above the top of the dam. Investigations are recommended to determine the safeguards required as the crest stones in the spillway unravel. Recommended remedial measures include the clearing of vegetation from the dam, the removal of an obstruction from the outlet pipe, the clearing of the approach channel to the overflow spillway and the providing of erosion protection at the top of the right end of the dam.
National Program for Inspection of Non-Federal Dams. Chartpak Dam MA 00758, Connecticut River Basin, Northampton, Massachusetts. Phase 1 Inspection Report
1979
92 pages
Report
No indication
English
Civil Engineering , Dams , Approach , Channels , Inspection , Capacity(Quantity) , Spillways , Surfaces , Water , Vegetation , Erosion , Protection , Massachusetts , Floods , Visual inspection , Safety , Hazards , Deficiencies , Chartpak Dam , National Dam Inspection Program