National Program for Inspection of Non-Federal Dams. China Dam (NH 00023) (NHWRB 190.01) Merrimack River Basin, Allenstown-Pembroke, New Hampshire. Phase I Inspection Report.
CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV
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The dam is a concrete gravity dam with a total length of about 275 ft. and a height of 29 ft. It is small in size with a low hazard potential classification. The spillway is a run of the river structure having a total length of 147 ft. and a height of about 22 ft. The drainage area of the dam is 259 square miles moderately to steeply sloping forsted terrain. Author
- Civil Engineering