Baldhill Dam, also known as Lake Ashtabula, is a federal-owned concrete dam located in Valley City, North Dakota, on the Sheyenne River.
Wind
Humidity
Completed in 1950, the dam serves primarily for flood risk reduction but also provides recreation and water supply benefits. With a maximum storage capacity of 156,000 acre-feet and a spillway width of 120 feet, the dam helps mitigate flood risks downstream by storing peak river flows during storm events. However, the dam does not completely eliminate flood risk, and large storms could fill the reservoir to capacity, potentially overtopping levees downstream.
The management of flood risks at Baldhill Dam involves close collaboration between the US Army Corps of Engineers and the National Weather Service to utilize real-time weather and streamflow forecast data. The Valley City Levees and related infrastructure have been raised and improved by the local community to increase the downstream river's capacity, improving overall flood risk management effectiveness. Additionally, the movement of landslides on the west hillside near the dam is continuously monitored, with countermeasures in place to mitigate potential risks. Despite the low risk assessment in 2014, future flood events could be more severe, necessitating ongoing risk management efforts to protect downstream communities like Valley City from catastrophic flooding.
In recent years, North Dakota has experienced intense spring storms and potential summer floods, emphasizing the importance of proactive measures to minimize flood impacts. Residents of Valley City and surrounding areas must remain vigilant, as flood events could occur throughout the year, posing risks of life loss and significant property damage. As climate change continues to impact weather patterns, the management of flood risks at Baldhill Dam becomes increasingly crucial to safeguarding communities along the Sheyenne River.
Year Completed |
1950 |
Dam Length |
1800 |
Dam Height |
47 |
River Or Stream |
SHEYENNE RIVER |
Primary Dam Type |
Concrete |
Surface Area |
5470 |
Hydraulic Height |
55 |
Drainage Area |
8078 |
Nid Storage |
156000 |
Structural Height |
60 |
Outlet Gates |
Slide (sluice gate) - 2, Tainter (radial) - 3, Uncontrolled - 0 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
60 |
Sheyenne River Below Baldhill Dam
|
169cfs |
Baldhill Creek Nr Dazey
|
7cfs |
Maple River Nr Hope
|
0cfs |
Sheyenne River Nr Cooperstown
|
179cfs |
James River At Jamestown
|
205cfs |
Maple River Nr Enderlin
|
25cfs |
| Location | Reservations | Toilets |
|---|---|---|
Mel Rieman Rec Area
|
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Eggerts Landing
|
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Tourist Park - Valley City
|
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East Ashtabula Crossing
|
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West Ashtabula Crossing
|