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. Hill Reservoir Dam (MA 00064), Connecticut River Basin, Pelham, Massachusetts. Phase I Inspection Report
Hill Reservoir Dam is a 47-year old earth embankment dam with a concrete core wall which impounds water for the Town of Amherst. Its crest is approximately 14 feet wide and 410 feet long. Both the upstream and downstream faces of the dam are sloped at 2H:1V. The entire dam is grass-covered, except for the upstream face, which is protected with random size loose riprap. The dam appears to be in fair overall condition. No signs of settlement, structural movement, or seepage through the dam or at any of the abutment ares were apparent at the time of the inspection. The most serious deficiencies concern the condition of the intake tower, the questionable operability of the presumed low level outlet, and the inaccessibility of the intake tower. The spillway appears to be in good condition. The test flood peak inflow to Hill Reservoir was computed to be 3,350 cfs. The test flood peak outflow was also computed to be 3,350 cfs and would result in a depth of flow over the dam of approximately 1.4 feet. The spillway, with the flashboards in place, has a discharge capacity of 810 cfs (24 percent of the routed test flood outflow) with the reservoir pool at the top of the dam. Assuming the flashboards are removed or fail prior to overtopping of the dam. Assuming the flashboards are removed of fail prior to overtopping of the dam, the spillway capacity is approximately 1,200 cfs, or 36 percent of the routed test flood outflow.
National Program for Inspection of Non-Federal Dams. Hill Reservoir Dam (MA 00064), Connecticut River Basin, Pelham, Massachusetts. Phase I Inspection Report
Hill Reservoir Dam is a 47-year old earth embankment dam with a concrete core wall which impounds water for the Town of Amherst. Its crest is approximately 14 feet wide and 410 feet long. Both the upstream and downstream faces of the dam are sloped at 2H:1V. The entire dam is grass-covered, except for the upstream face, which is protected with random size loose riprap. The dam appears to be in fair overall condition. No signs of settlement, structural movement, or seepage through the dam or at any of the abutment ares were apparent at the time of the inspection. The most serious deficiencies concern the condition of the intake tower, the questionable operability of the presumed low level outlet, and the inaccessibility of the intake tower. The spillway appears to be in good condition. The test flood peak inflow to Hill Reservoir was computed to be 3,350 cfs. The test flood peak outflow was also computed to be 3,350 cfs and would result in a depth of flow over the dam of approximately 1.4 feet. The spillway, with the flashboards in place, has a discharge capacity of 810 cfs (24 percent of the routed test flood outflow) with the reservoir pool at the top of the dam. Assuming the flashboards are removed or fail prior to overtopping of the dam. Assuming the flashboards are removed of fail prior to overtopping of the dam, the spillway capacity is approximately 1,200 cfs, or 36 percent of the routed test flood outflow.
National Program for Inspection of Non-Federal Dams. Hill Reservoir Dam (MA 00064), Connecticut River Basin, Pelham, Massachusetts. Phase I Inspection Report
1981
93 pages
Report
No indication
English