Accession Number:

ADA142623

Title:

National Dam Inspection Program. Willett Pond Dam MA 00169, Neponset River Basin, Norwood, Massachusetts. Phase I Inspection Report.

Descriptive Note:

Corporate Author:

CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV

Personal Author(s):

Report Date:

1979-04-01

Pagination or Media Count:

81.0

Abstract:

The impounding structures at Willett Pond include a 900-foot long, 25-foot high main dam with a spillway and an outlet, and a 1,900-foot long, 13-foot high dike. The structures were built in 1913. According to the available specification and drawings, both the dam and dike contain a concrete core with with the embankments made of earth fill. The spillway is located at the south abutment of the dam, and consists of a three-day concrete box culvert beneath a roadway. The outlet consists of two 20-inch diameter, cast-iron conduits which discharge at the toe of the dam. There are deficiencies which must be corrected to assure the continued performance of this dam. This conclusion is based on the visual inspection of the site, a review of available data, a review of the 1911 and 1913 plans and specifications, and a review of operating and maintenance procedures. Generally, the dam is in fair condition. The spillway without stoplogs can discharge 17 percent of the test flood outflow before the dike is overtopped. With the stoplogs in place, the spillway can discharge 440 cfs or 10 percent of the test flood before the dike is overtopped.

Subject Categories:

  • Hydrology, Limnology and Potamology
  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE