Sheriff Number 1 Reservoir Report
Nearby: Sheriff (Nid) Richland (Nid)
Last Updated: December 10, 2025
Sheriff Number 1 is a privately owned dam located in Jones, South Dakota, along the TR-Bad River.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1949, this earth-type dam stands at a height of 30 feet and has a length of 444 feet. With a storage capacity of 94 acre-feet, it serves as a vital water resource in the area, with a normal storage capacity of 62 acre-feet.
Managed by the South Dakota Department of Environment and Natural Resources (DENR), Sheriff Number 1 is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and compliance with regulations. With a low hazard potential and a "Not Rated" condition assessment, it is crucial for water resource and climate enthusiasts to monitor its operations and maintenance to mitigate any potential risks.
Despite its age, Sheriff Number 1 has not undergone any significant modifications in recent years. While there are no emergency action plans or inundation maps prepared for this dam, its low hazard potential suggests that the risk management measures are currently deemed sufficient. As a key infrastructure in the region, it is essential to stay informed about Sheriff Number 1 and its role in water resource management and climate resilience efforts.
Year Completed |
1949 |
Dam Length |
444 |
Dam Height |
30 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Nid Storage |
94 |
Hazard Potential |
Low |
Nid Height |
30 |
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.
Sheriff Number 1