National Program for Inspection on Non-Federal Dams. Arlington Reservoir Dam (MA 00771), Massachusetts Coastal Basin, Arlington - Lexington, Massachusetts. Phase I Inspection Report.
Abstract
The Arlington Reservoir Dam is an earth embankment with a concrete and rubble masonry overflow spillway (emergency spillway) located near the center of the dam. A concrete sluiceway (principal spillway), located approximately 20 ft, to the left of the emergency spillway, consists of a 9 ft. wide crest gate flowing to a 5 ft. diameter concrete pipe which outlets into Mill Brook. A low level outlet consists of a pipe of approximately 12 inches in diameter controlled by a gate valve which is located in a chamber at the downstream slope of the dam 800 ft, to the left of the sluiceway. The embankment has a minimum top width of approximately 20 feet, a maximum height of 14 feet and upstream and downstream slopes a minimum 1.5 H to 1 V. The overall length of the dam is approximately 1770 ft. Based on visual inspection and a review of all available pertinent data, the dam is considered to be in poor condition. Features that could effect the structural integrity of the dam include erosion and slumping of dam slopes, extensive tree growth on the dam clopes, deterioration of emergency spillway discharge channel, deterioration of the gate chamber for the low level outlet. The calculated Test Flood outflow from the reservior was 850 cfs. The Test Flood would overtop the dam by approximately 0.9 feet. About 600 cfs or 70% of the Test Flood outflow would be carried by the sluiceway and the emergency spillway.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1981
- Accession Number
- ADA155651
Entities
Organizations
- New England District, U.S. Army Corps of Engineers