Summary
With a height of 18 feet and a storage capacity of 240 acre-feet, this dam serves as a crucial water resource in the region. Despite its low hazard potential, the dam is regulated and inspected by the South Dakota Department of Environment and Natural Resources to ensure its safety and compliance with state regulations.
The dam, designed to withstand hydraulic pressures up to 18 feet, plays a vital role in water management and flood control in the area. With a maximum discharge capacity of 760 cubic feet per second, Blair Dam helps in regulating water flow and maintaining normal storage levels of 120 acre-feet. While the dam's condition is currently not rated, regular inspections and emergency preparedness protocols are in place to address any potential risks or hazards.
Blair Dam, situated in a picturesque location with a minimal environmental impact, stands as a testament to effective water resource management and climate resilience efforts in South Dakota. As a significant infrastructure project in the region, the dam showcases the importance of maintaining and monitoring our water resources to ensure sustainability and safety for future generations.
Year Completed |
1985 |
Dam Length |
300 |
Dam Height |
18 |
River Or Stream |
COTTONWOOD CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
240 |
Hazard Potential |
Low |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Blair Dam