Located in Jefferson, New York, the Theresa dam serves as a crucial structure for hydroelectric power generation on the Indian River.
Wind
Humidity
Built in 1929, this gravity dam stands at a height of 40 feet and has a storage capacity of 482 acre-feet. With a low hazard potential and moderate risk assessment, the dam is regulated by the Federal Energy Regulatory Commission and inspected regularly to ensure its safety and functionality.
The Theresa dam is owned and operated by a private entity, with state jurisdiction and regulation in place by the NYS DEC. It boasts a concrete and gravity dam type, along with a multi-arch core design resting on rock foundations. The dam's spillway, with a width of 48 feet, is uncontrolled, and it has two roller outlet gates for water release. Despite its age, the dam remains in good condition with no available assessment data.
As a pivotal factor in the local water resource management and climate adaptation efforts, the Theresa dam plays a vital role in providing renewable energy and regulating water flow in the area. With its historical significance and ongoing maintenance, the dam stands as a testament to sustainable infrastructure development and responsible resource utilization in New York State.
Year Completed |
1929 |
Dam Length |
127.4 |
Dam Height |
40 |
River Or Stream |
Indian River |
Primary Dam Type |
Gravity |
Surface Area |
75 |
Drainage Area |
323 |
Nid Storage |
482 |
Outlet Gates |
Roller - 2 |
Hazard Potential |
Low |
Foundations |
Rock |
Nid Height |
40 |
Black River At Watertown Ny
|
2340cfs |
West Branch Oswegatchie R Nr Harrisville Ny
|
322cfs |
Beaver River At Croghan Ny
|
678cfs |
Sandy Creek Near Adams Ny
|
212cfs |
Oswegatchie River Near Heuvelton Ny
|
1250cfs |
Oswegatchie River Near Oswegatchie Ny
|
163cfs |
| Location | Reservations | Toilets |
|---|---|---|
Keewaydin State Park
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Grass Point State Park
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Kring Point State Park
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