National Program for Inspection of Non-Federal Dams, Webster Dam (NH 00378), Merrimack River Basin, Allenstown-Pembroke, New Hampshire. Phase I Inspection Report.
CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV
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Webster Dam is a concrete gravity structure with natural ground separating a concrete ogee spillway from a diversion canal near the right end of the dam. The total length of the dam is approximately 250 ft. with the spillway accounting for 154 ft. of the total length. The dam is small in size with a significant hazard potential. The test flood is between the 100 yr. and 12 the PMF. The dam is considered to be in fair condition at the present time. The wastegate and canal headwork structure are in very poor condition. Technical inspections should be scheduled every year. Keywords include Visual inspection Dam safety Merrimack River Basin Allenstown-Pembroke, New Hampshire and Suncook River.
- Civil Engineering