National Program for Inspection of Non-Federal Dams. Concord Water Works Dam (NH 00360), NHWRB Number 51.13, Merrimack River Basin, Concord, New Hampshire. Phase I Inspection Report.
CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV
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Concord Water Works Dam is an earthen embankment approximately 9 feet high from crest of dam to toe of slope and 265 feet long. The upstream face of the embankment is protected by a 1.0 foot thick concrete wall, a concrete slab and granite block riprap which extends to the bottom of the reservoir. There is no emergency spillway. The dam is in fair condition with a few major concerns which must be corrected. The dam is intermediate in size with a significant hazard potential. The test flood ranges from 12 the PMF to full PMF. There are various remedial measures which should be implemented by the owner. Keywords include Inspection, Dam safety, Merrimack River Basin, Concord, New Hampshire, and Rattlesnake Brook.
- Civil Engineering