Mavis Pond #1 Dam, located in Thompson, Connecticut, was completed in 1870 and serves as a recreational spot with a primary purpose of providing leisure activities for visitors.
Wind
Humidity
The dam, standing at a height of 13 feet and a length of 172 feet, has a storage capacity of 65 acre-feet and is situated on the Fivemile River within the Windham County. The structure is classified as a Masonry dam and is regulated by the Connecticut Department of Energy and Environmental Protection (DEEP).
With a significant hazard potential, Mavis Pond #1 Dam is not currently rated for its condition assessment and lacks an Emergency Action Plan (EAP). Despite these gaps, the dam continues to be a popular spot for outdoor enthusiasts looking to enjoy the scenic surroundings and recreational opportunities it provides. The dam has a spillway width of 12 feet and a maximum discharge capacity of 32 cubic feet per second, ensuring proper water flow management in case of high water levels.
While Mavis Pond #1 Dam has not been modified in recent years and lacks some key safety measures, its role in providing recreational activities and its historical significance make it an important landmark in the area. With its location along the Fivemile River and its proximity to Thompson, the dam remains a notable feature for water resource and climate enthusiasts looking to explore the diverse landscapes of Connecticut.
Year Completed |
1870 |
Dam Length |
172 |
Dam Height |
13 |
River Or Stream |
FIVEMILE RIVER |
Primary Dam Type |
Masonry |
Surface Area |
12 |
Drainage Area |
2.82 |
Nid Storage |
65 |
Hazard Potential |
Significant |
Nid Height |
13 |
French River At Webster
|
7cfs |
French R At N Grosvenordale
|
188cfs |
Quinebaug R At West Thompson
|
276cfs |
Nipmuc River Near Harrisville
|
27cfs |
Quinebaug River At Quinebaug
|
245cfs |
Little River At Harrisville
|
85cfs |