National Program for Inspection of Non-Federal Dams. Indian Lake Dam (MA 01051) Connecticut River Basin, Becket, Massachusetts. Phase I Inspection Report.
CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV
Pagination or Media Count:
Indian Lake Dam is an earth embankment about 460 feet long with a height of about 15 feet above the brook channel. Near the center of the embankment is a reinforced concrete gravity wall spillway and control structure. The spillway is a free overfall straight drop type with a reinforced concrete, stone lined stilling basin and outfall channel, and provisions for flashboards or stop logs on the crest. A 30 inch square reservoir drain with hand operated sluice gate is also provided in the spillway structure. The embankment is in fair condition. The embankment is not at design height and downstream embankment protection has not been provided. The spillway is in fair condition. The spillway structure shows signs of poor workmanship and deficiencies which could eventually create hazards. Some leakage is apparently occurring under the embankment, but does not appear to be hazardous. Routing the flood flow through the reservoir starting at normal water level, but assuming that the flashboards would go out, the spillway would carry the estimated maximum outflow of 750 cfs with about 1.2 feet freeboard if the embankment is completed to design height.
- Hydrology, Limnology and Potamology
- Civil Engineering