Upper Flannagan Pond Dam, located in Ayer, Massachusetts, is a private dam primarily used for recreation purposes.
Wind
Humidity
Completed in 1955, this concrete dam stands at a height of 8.5 feet and has a hydraulic height of 7 feet. With a storage capacity of 110 acre-feet and a surface area of 23 acres, this dam plays a significant role in the water resource management of the area.
The dam is regulated by the Department of Conservation and Recreation in Massachusetts and is inspected regularly to ensure its safety and functionality. Although the dam is considered to have a significant hazard potential, its condition assessment in 2012 was rated as fair. The dam's spillway type is uncontrolled, indicating the need for careful monitoring and maintenance to prevent any potential risks to the surrounding community.
In conclusion, Upper Flannagan Pond Dam serves as a vital structure for recreational activities in the region, while also posing certain risks that require careful management and oversight. Its location near the Nonacocus Brook tributary highlights its importance in the local water ecosystem, making it a key area of interest for water resource and climate enthusiasts looking to understand the impact of dams on the environment.
Year Completed |
1955 |
Dam Length |
77 |
Dam Height |
8.5 |
River Or Stream |
TRIBUTARY OF NONACOCUS BROOK |
Primary Dam Type |
Concrete |
Surface Area |
23 |
Hydraulic Height |
7 |
Drainage Area |
0.68 |
Nid Storage |
110 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
9 |