National Program for Inspection of Non-Federal Dams. Ellithorpe Dam (CT 00481), Thames River Basin, Stafford, Connecticut. Phase I Inspection Report.

Abstract

Ellithorpe Dam consists of a 4,250 foot long earth embankment and a 200 foot wide grassed emergency spillway. The outlet consists of a concrete riser with 23 foot long weirs and a 48-inch reinforced concrete outlet pipe discharging to Middle River at the toe of dam. Based on the visual inspection, Ellithorpe Dam appears to be in good condition. There are several recreational vehicles paths on the slopes with some erosion taking place. Also, there are numerous rodent burrows on the upstream slope. Maintenance practices at Ellithorpe Dam appear to be good. Based on Corps of Engineers guidelines, the PMF was calculated to be 16,900 cfs inflow, with the outflow 10,800 cfs at an elevation of 591.6, which is 0.6 feet over the top of dam. This flow was used as the test flood.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1981
Accession Number
ADA144623

Entities

Organizations

  • New England District, U.S. Army Corps of Engineers

Tags

DTIC Thesaurus Topics

  • Agriculture
  • Civil Engineering
  • Concrete
  • Construction
  • Dams
  • Drainage Basins
  • Embankments
  • Engineers
  • Environmental Protection
  • Flood Control
  • New England
  • Reinforced Concrete
  • Safety
  • Spillways
  • United States
  • Visual Inspection
  • Warning Systems

Readers

  • Hydraulic Engineering.