Disseau Dam 2 Reservoir Report
Nearby: Dusseau Dam Schanot Rated Dam
Last Updated: December 13, 2025
Disseau Dam 2, located in Brule, South Dakota, stands as a significant water resource infrastructure built in 1947 with a height of 25 feet and a length of 594 feet.
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Summary
This earth dam, owned privately, is regulated by the South Dakota Department of Environment and Natural Resources, ensuring its compliance with state permitting, inspection, and enforcement requirements. The dam's primary purpose and specific purposes are not explicitly defined, but it plays a crucial role in storing water with a maximum capacity of 27 acre-feet and normal storage of 18 acre-feet.
Managed by the Natural Resources Conservation Service and situated along the TR-MISSONot RatedI river or stream, Disseau Dam 2 holds a hazard potential classified as significant, emphasizing the importance of monitoring and maintenance to ensure public safety and environmental protection. Although the dam's condition assessment is marked as "Not Rated," its emergency action plan and risk management measures are unspecified, raising questions about its preparedness for potential emergencies. With a spillway type and width not specified, further information is needed to evaluate the dam's capacity to handle maximum discharge events effectively.
Despite the lack of detailed data on certain aspects of Disseau Dam 2, such as its emergency preparedness and risk assessment, its historical significance and role in water storage in South Dakota cannot be understated. As water resource and climate enthusiasts, continued monitoring and assessment of this infrastructure are crucial to ensure its integrity and safety for the surrounding community and ecosystem.
Year Completed |
1947 |
Dam Length |
594 |
Dam Height |
25 |
River Or Stream |
TR-MISSONot RatedI |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
27 |
Hazard Potential |
Significant |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
White R Near Oacoma Sd
|
105cfs |
Platte Creek Near Platte
|
3cfs |
Firesteel Cr Near Mount Vernon Sd
|
0cfs |
James R Near Forestburg Sd
|
560cfs |
James R At Huron Sd
|
548cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
American Creek - Lake Francis Case
|
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West Chamberlain - Lake Francis Case
|
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Happy Campers Campground
|
Disseau Dam 2
Lake Francis Case(Am Cr Bay) At Chamberlain