Cheshire Reservoir Dam, also known as Prospect Reservoir Dam, is a concrete structure located in Mixville, Connecticut.
Wind
Humidity
Built in 1908 for the primary purpose of water supply, this dam stands at a height of 21 feet and spans 168 feet in length. It holds a maximum storage capacity of 58 acre-feet with a normal storage level of 30 acre-feet. The dam is situated on Mixville Brook in New Haven County and is owned by a public utility.
The Cheshire Reservoir Dam has a spillway width of 70 feet and a maximum discharge capability of 1086 cubic feet per second. It is regulated, permitted, inspected, and enforced by the Connecticut Department of Energy and Environmental Protection (DEEP). The dam has a high hazard potential due to its location and condition assessment, which was deemed satisfactory as of the last inspection in November 2019. The risk assessment for the dam is moderate (3) with no specific risk management measures outlined.
Despite its age, the Cheshire Reservoir Dam continues to serve as a vital water resource infrastructure in the region. With its historical significance, high hazard potential, and moderate risk assessment, the dam remains a focal point for water resource and climate enthusiasts interested in its maintenance and management for the future.
Year Completed |
1908 |
Dam Length |
168 |
Dam Height |
21 |
River Or Stream |
MIXVILLE BROOK |
Primary Dam Type |
Concrete |
Surface Area |
7 |
Drainage Area |
1.76 |
Nid Storage |
58 |
Hazard Potential |
High |
Nid Height |
21 |
Mill R Nr Hamden
|
20cfs |
Quinnipiac River At Wallingford
|
147cfs |
Naugatuck River At Beacon Falls
|
258cfs |
Quinnipiac River At Southington
|
16cfs |
Coginchaug River At Middlefield
|
60cfs |
Nonewaug River At Minortown
|
8cfs |