National Program for Inspection of Non-Federal Dams. Bronson E. Lockwood Reservoir Dam (CT 00435), Pomperaug River Basin, Bethlehem, Connecticut. Phase I Inspection Report.
Abstract
Bronson E. Lockwood Dam is a zoned, rolled earth embankment about 820 feet long with a maximum height of about 34 feet and a top width of 16 feet. The riprapped upstream slope is 2.75H:1V and the grassed downstream slope is 2.25H:1V. The drop-inlet service spillway and outlet works are combined in a reinforced concrete intake tower located near the center of dam at the toe of the upstream slope. A grass-lined trapezoidal auxiliary spillway is located at the left abutment. The impounded waters are used for water supply for the Watertown Fire District. B.E. Lockwood Dam has a maximum storage capacity of approximately 1,290 acre-feet and a maximum height of 34 feet. The dam appears to be in good condition. The root systems of the small trees growing on the upstream slope near the right abutment may displace the riprap exposing the embankment to wave action and erosion. The heavy vegetation growing in the emergency spillway approach channel reduces the emergency spillway discharge capacity. The test flood peak inflow to B.E. Lockwood Dam was completed as 2,930 cfs. The routed test flood outflow of 2,590 cfs overtops the embankment by o.5 feet. The spillway system is capable of discharging 1,240 cfs prior to overtopping of the embankment, which is abut 48 percent of the routed test flood outflow.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1980
- Accession Number
- ADA144585
Entities
Organizations
- New England District, U.S. Army Corps of Engineers