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National Program for Inspection of Non-Federal Dams. Whitehall Reservoir Dam (MA 00445), Merrimack River Basin, Hopkinton, Massachusetts. Phase 1 Inspection Report
The White hall Reservoir Dam is an almost 60-year old fill structure which has had added, in more recent times, a concrete upstream face. There are extensions at either end of the concrete face. A narrow road crosses the dam. The dam has no overflow spillway and the outlet conduits, which once discharged water into the watercourse below the dam, are permanently closed. Water level in the reservoir is apparently maintained by means of a conduit which diverts water, up to its capacity, by gravity into a nearby pond. Discussions with past and present owners could not verify that this line is actually operating. The fact that the pond level is maintained suggests that it does operate. Apparently, high flows are allowed to discharge over the dam and its extensions. The dam and abutments appear to be in fair condition. However, the downstream slopes should be better maintained. Reservoir storage will reduce the probable maximum discharge of 3,495 cfs to a test flood of 2,625 cfs. As there is no overflow spillway, per se, such a flood would overtop the dam and its natural extensions to a height of about 3 feet.
National Program for Inspection of Non-Federal Dams. Whitehall Reservoir Dam (MA 00445), Merrimack River Basin, Hopkinton, Massachusetts. Phase 1 Inspection Report
The White hall Reservoir Dam is an almost 60-year old fill structure which has had added, in more recent times, a concrete upstream face. There are extensions at either end of the concrete face. A narrow road crosses the dam. The dam has no overflow spillway and the outlet conduits, which once discharged water into the watercourse below the dam, are permanently closed. Water level in the reservoir is apparently maintained by means of a conduit which diverts water, up to its capacity, by gravity into a nearby pond. Discussions with past and present owners could not verify that this line is actually operating. The fact that the pond level is maintained suggests that it does operate. Apparently, high flows are allowed to discharge over the dam and its extensions. The dam and abutments appear to be in fair condition. However, the downstream slopes should be better maintained. Reservoir storage will reduce the probable maximum discharge of 3,495 cfs to a test flood of 2,625 cfs. As there is no overflow spillway, per se, such a flood would overtop the dam and its natural extensions to a height of about 3 feet.
National Program for Inspection of Non-Federal Dams. Whitehall Reservoir Dam (MA 00445), Merrimack River Basin, Hopkinton, Massachusetts. Phase 1 Inspection Report
1978
60 pages
Report
No indication
English
Civil Engineering , Earth dams , Visual inspection , Safety , Flooding , Hazards , Deficiencies , Concrete , Dams , Flow , Gravity , Inspection , Level(Quantity) , Massachusetts , Ponds , Reservoirs , Slope , Water , Whitehall Reservoir Dam , National Dam Inspection Program