Accession Number:

ADA143049

Title:

National Program for Inspection of Non-Federal Dams. Whist Pond Dam (CT 00102), Naugatuck River Basin, Torrington - Goshen, Connecticut. Phase I Inspection Report.

Descriptive Note:

Corporate Author:

CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV

Personal Author(s):

Report Date:

1980-12-01

Pagination or Media Count:

82.0

Abstract:

The Whist Pond Dam consists of an earth embankment with a maximum height of 9 feet, and a total length of 1,100 feet including a 17.7 foot long overflow spillway located at the right end of the dam. The outlet works consist of a 12-inch cast iron low level diversion outlet pipe through the dam, controlled by a downstream gate valve. The dam impounds Whist Pond, a storage reservoir for public water supply of the Torrington Water Company. Based on the visual inspection and a review of all available pertinent data, the dam is judged to be in fair condition. The future integrity of the dam can be affected by continued slumping of the rip-rap, roots through the embankment, continued deterioration of the spillway weir and training walls, the lack of a defined spillway discharge channel, and the downstream location of the low level diversion outlet valve. The calculated Test Flood inflow of 175 cfs results in a routed outflow of 65 cfs and 0.4 feet of freeboard. The spillway has a capacity of 100 cfs and is capable of discharging 154 percent of the Test Flood routed outflow.

Subject Categories:

  • Hydrology, Limnology and Potamology
  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE