National Program for Inspection of Non-Federal Dams. Highland Pond Dam (CT 00147), Connecticut River Basin, Middletown, Connecticut. Phase I Inspection Report.
Abstract
Highland Pond Dam is a 117 foot long stone rubble and earthfill dam which has a maximum height of 14 feet. There is a 21 foot long broad crested weir spillway located near the middle of the dam. The width of the embankment averages 20 feet including the dry stone masonry facing. The maximum storage capacity of the dam, with water at the top of dam, is 69 acre-feet. There are no known uses of the dam at the present time. The visual inspection of Highland Pond Dam indicated that the dam is in fair condition. The inspection revealed that the crest of the dam is covered with trees and rotted stumps. Trees were also noted growing at the downstream toe the dam. There is no riprap on the upstream slope, and erosion was noted in the vicinity of the left abutment. On the downstream face of the dam there was one area of bulging, along with an area of seepage, and a number of voids up to 6 inches wide between stones. The peak inflow at the dam is 1730 cfs which was calculated using the drainage area of 1.63 square miles and the Corps Peak Inflow Curve for rolling terrain. The peak outflow, after allowing for pond storage, is 1600 cfs. The spillway will discharge 175 cfs or 11% of the test flood with the pool level at the top of the dam. The test flood will overtop the dam by 3.2 feet.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1981
- Accession Number
- ADA143520
Entities
Organizations
- New England District, U.S. Army Corps of Engineers