Cottonwood Springs Dam, located in Hot Springs, South Dakota, is a key flood risk reduction infrastructure managed by the US Army Corps of Engineers.
Wind
Humidity
Completed in 1969, this earth dam stands at a structural height of 123 feet and has a maximum storage capacity of 11,635 acre-feet. The dam serves the primary purpose of flood risk reduction for the Cottonwood Springs Creek, with a spillway width of 275 feet to manage high discharge levels.
Despite its high hazard potential, Cottonwood Springs Dam is regularly monitored and maintained by USACE to ensure its structural integrity and efficient operations. The agency employs risk management measures to address potential flood risks associated with the dam, including continuous monitoring, prioritized maintenance activities, and engagement with local emergency managers and the public. Emergency action plans and inundation maps are regularly updated to be prepared for any dam-related emergencies.
As a critical infrastructure for flood control in the region, Cottonwood Springs Dam plays a crucial role in managing water levels and reducing flood risks. USACE's proactive approach to risk management and ongoing maintenance efforts ensure the dam's reliability and readiness to respond to any potential emergencies effectively.
Year Completed |
1969 |
Dam Length |
1190 |
River Or Stream |
COTTONWOOD SPRINGS CREEK |
Primary Dam Type |
Earth |
Surface Area |
42 |
Hydraulic Height |
118 |
Drainage Area |
26 |
Nid Storage |
11635 |
Structural Height |
123 |
Outlet Gates |
Uncontrolled - 0 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
123 |
| Location | Reservations | Toilets |
|---|---|---|
Cottonwood Springs
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Elk Mountain - Wind Cave National Park
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Elk Mountain Campground
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Angostura State Rec Area
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Rifle Pit
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