Bork Number 2 Reservoir Report
Nearby: Sanderson Number 3 Bork Number 1
Last Updated: December 7, 2025
Bork Number 2, located in South Dakota along the TR-BAD RIVER, is a privately owned earth dam with a height of 25 feet and a length of 1012 feet.
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Summary
Completed in 1969, this dam has a maximum storage capacity of 89 acre-feet and a normal storage capacity of 54 acre-feet. With a low hazard potential and a condition assessment of "Not Rated," Bork Number 2 is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and undergoes regular state inspection, permitting, and enforcement.
Despite being privately owned, Bork Number 2 falls under the jurisdiction of the state and is subject to state regulations and permitting requirements. The dam is situated in Jones County, South Dakota, and is part of the St. Paul District of the US Army Corps of Engineers. With a maximum discharge of 600 cubic feet per second, this dam plays a crucial role in water resource management in the area. While the dam's emergency action plan and risk assessment details are not readily available, its location and design suggest a vital role in flood control and water supply for the region.
As a water resource and climate enthusiast, Bork Number 2 presents an intriguing case study in dam infrastructure and management. With its historical completion date, state regulation, and low hazard potential, this privately owned earth dam serves as a key component in water storage and flood control along the TR-BAD RIVER in South Dakota. The dam's capacity, design, and regulatory oversight highlight the importance of proper maintenance and monitoring for sustainable water resource management in the face of changing climate conditions.
Year Completed |
1969 |
Dam Length |
1012 |
Dam Height |
25 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
89 |
Hazard Potential |
Low |
Nid Height |
25 |
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.
Bork Number 2