Bear Swamp - South Dike, also known as Bear Swamp Upper Reservoir Dike, is a crucial structure located in Charlemont, Massachusetts, along the Deerfield River.
Wind
Humidity
Built in 1974 for hydroelectric purposes, this earth and rockfill dam stands at a height of 140 feet and spans a length of 2763 feet. With a maximum storage capacity of 5100 acre-feet and a surface area of 118 acres, this dam plays a significant role in water resource management in the region.
Managed by the Federal Energy Regulatory Commission, Bear Swamp - South Dike has a high hazard potential and is categorized as a high-risk structure. Despite being state-regulated, it does not have state permitting, inspection, enforcement, or jurisdiction. The dam has no spillway and is associated with two other structures, MA00976S001 and MA00976S002. The last inspection was conducted in September 2020, with an inspection frequency of 1.
For water resource and climate enthusiasts, Bear Swamp - South Dike provides a fascinating example of how hydroelectric infrastructure contributes to both water management and renewable energy generation. With its impressive height and storage capacity, this dam serves as a vital component of the region's water infrastructure. Its high-risk classification underscores the importance of regular monitoring and maintenance to ensure the safety and efficiency of this essential structure in the face of changing environmental conditions.
Year Completed |
1974 |
Dam Length |
2763 |
Dam Height |
140 |
River Or Stream |
Deerfield River |
Surface Area |
118 |
Drainage Area |
0.1 |
Nid Storage |
5100 |
Hazard Potential |
High |
Nid Height |
140 |
Deerfield River At Charlemont
|
1540cfs |
Hoosic River At Adams
|
213cfs |
Hoosic River Near Williamstown
|
747cfs |
North River At Shattuckville
|
463cfs |
Green River At Williamstown
|
202cfs |
Green River Near Colrain
|
218cfs |
| Location | Reservations | Toilets |
|---|---|---|
Mohawk Trail State Forest
|
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Savoy Mountain State Forest
|
||
Historic Valley
|
||
Clarksburg State Park
|
||
Windsor State Forest
|
||
Sherman Brook Campsite
|