Bolstad Wpa Reservoir Report
Nearby: Dry Lake Dam Bullis Wetland Dam
Last Updated: December 13, 2025
Bolstad Wpa is a federally owned earth dam located in Brookings, South Dakota, along a tributary of the Big Sioux River.
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Summary
Built in 1955, this dam stands at a height of 7 feet and has a length of 270 feet, providing a storage capacity of 64 acre-feet. The primary purpose of Bolstad Wpa is to manage water resources in the area, with a maximum discharge of 200 cubic feet per second.
Despite its low hazard potential, Bolstad Wpa has not been rated for its condition assessment. The dam's emergency action plan status, risk assessment, and risk management measures are also currently unknown. With no recent inspection date provided, it is crucial for water resource and climate enthusiasts to monitor the condition of Bolstad Wpa to ensure its continued functionality and safety for the surrounding community.
As a key infrastructure in water management, Bolstad Wpa plays a vital role in regulating flow and storage in the area. However, with limited information on its current condition and emergency preparedness, further assessment and monitoring are necessary to safeguard against potential risks and ensure the dam's effectiveness in meeting water resource needs in South Dakota.
Year Completed |
1955 |
Dam Length |
270 |
Dam Height |
7 |
River Or Stream |
TRIB. BIG SIOUX RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
7 |
Drainage Area |
1 |
Nid Storage |
64 |
Hazard Potential |
Low |
Nid Height |
7 |
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.
Bolstad Wpa