Accession Number:

ADA142869

Title:

National Program for Inspection of Non-Federal Dams. Hartford Reservoir Number 5 Dam (CT 00004), Park River Basin, Hartford, Connecticut. Phase I Inspection Report.

Descriptive Note:

Corporate Author:

CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV

Personal Author(s):

Report Date:

1980-04-01

Pagination or Media Count:

91.0

Abstract:

Hartford Reservior No. 5 Dam is a 96-year old earth embankment, approximately 550 feet long with a maximum height of 24 feet, which impounds water prior to transfer to the City of Hartford water filtration facility. Under normal operating conditions, water from two upstream reservoirs Nepaug and Barkhamsted flows via the Nepaug Conduit into Reservoir No. 5 for eventual transfer to the filtration plant. Surcharge water is discharged through the spillway and is conveyed to Hartford Reservoir No. 1 for used at the downstream power generation facilities. The watershed for Hartford Reservoir No. 5 encompasses approximately 1.1 square miles of forested, mountainous land. The normal pool reservoir surface area is about 25 acres, with a corresponding storage capacity of 156 acre-feet. The peak inflow and outflow rates for the test flood at Hartford Reservoir No. 5 Dam were computed on be 1,140 cfs and 1,080 cfs, respectively. The peak outflow corresponds to a reservoir stage of 3.1 feet above the spillway crest, or 2.1 feet below the top of the dam. The spillway is capable of discharging 100 percent of the routed test flood outflow without overtopping of the embankment.

Subject Categories:

  • Hydrology, Limnology and Potamology
  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE