Located in Greenwich, Connecticut, the Putnam Reservoir Dam, also known as Putnam Lake, stands as a vital water supply structure in the region.
Wind
Humidity
Completed in 1910, this concrete dam spans 640 feet in length and reaches a height of 35 feet, with a storage capacity of 1775 acre-feet. The dam holds back water from the Horseneck Brook, providing a surface area of 105 acres and serving the primary purpose of water supply for the community.
Managed by a public utility, the Putnam Reservoir Dam is regulated by the Connecticut Department of Energy and Environmental Protection (DEEP). Despite its high hazard potential, the dam's condition is deemed satisfactory following the latest assessment in August 2020. With a drainage area of 2.1 square miles and a maximum discharge capacity of 1560 cubic feet per second, the dam plays a crucial role in safeguarding the water resources and ensuring the community's water needs are met.
As a key infrastructure for water resource management, the Putnam Reservoir Dam undergoes regular inspections and is equipped with emergency action plans to address any potential risks. With its historical significance dating back over a century, this concrete dam stands as a testament to the importance of sustainable water supply practices in the face of changing climate conditions. For water resource and climate enthusiasts, the Putnam Reservoir Dam serves as a symbol of resilience and adaptation in the realm of water infrastructure management.
Year Completed |
1910 |
Dam Length |
640 |
Dam Height |
35 |
River Or Stream |
HORSENECK BROOK |
Primary Dam Type |
Concrete |
Surface Area |
105 |
Drainage Area |
2.1 |
Nid Storage |
1775 |
Hazard Potential |
High |
Nid Height |
35 |