Plantain Pond Dam, located in Mount Washington, Berkshire County, Massachusetts, is a rockfill dam completed in 1947 with a primary purpose of recreation.
Wind
Humidity
It stands at a height of 15 feet and has a hydraulic height of 12.5 feet, offering a storage capacity of 500 acre-feet. The dam spans 240 feet in length and impounds the Bear Rock Stream, creating a surface area of 62 acres for recreational activities.
Managed by a private owner, Plantain Pond Dam is regulated by the Department of Conservation and Recreation in Massachusetts. The dam has a significant hazard potential and is assessed to be in fair condition as of the last inspection in May 2017. With a moderate risk rating, the dam is inspected every five years to ensure its structural integrity and safety for surrounding communities. Despite being uncontrolled, the spillway type of the dam helps manage water levels during periods of excess discharge, contributing to the overall management of water resources in the area.
Year Completed |
1947 |
Dam Length |
240 |
Dam Height |
15 |
River Or Stream |
BEAR ROCK STREAM |
Primary Dam Type |
Rockfill |
Surface Area |
62 |
Hydraulic Height |
12.5 |
Drainage Area |
0.85 |
Nid Storage |
500 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
15 |