National Program for Inspection of Non-Federal Dams. Weston Reservoir Dam (MA 00798), Charles River Basin, Weston, Massachusetts. Phase 1 Inspection Report

摘要

Weston Reservoir Dam is an earth embankment approximately 1,000 feet long with a maximum height of about 32 feet. Discharge from the reservoir is controlled by a system of 5 stop log bays, which are located in the stone masonry screen chamber and flow control building located about 50 feet to the right of the left abutment. A 16-inch low level discharge pipe, located about 500 feet to the left of the right abutment, provides additional discharge capacity. No spillway exists for this structure. The test flood peak inflow to Weston Reservoir was computed to be 1,880 cfs. The routed test flood outflow was computed to be 1,100 cfs and would result in overtopping of the embankment to 0.5 feet. The reservoir is capable of storing approximately 60 percent of the test flood in surcharge storage prior to overtopping of the embankment.