Cnv Ranch Number 1 Reservoir Report
Nearby: Barton Number 1 Barton Number 2
Last Updated: December 6, 2025
Cnv Ranch Number 1 is a privately owned earth dam located in Jones, South Dakota, along the TR-Bad River.
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Summary
Built in 1953 by the Natural Resources Conservation Service, this dam stands at 25 feet tall and spans 408 feet in length, with a storage capacity of 39 acre-feet. While the dam is considered to have a low hazard potential, its condition assessment is currently labeled as "Not Rated".
Despite being privately owned, Cnv Ranch Number 1 is regulated and permitted by the South Dakota Department of Environment and Natural Resources, with regular inspections and enforcement measures in place. The dam's primary purpose and associated structures are not specified, but it serves as a crucial water resource for the surrounding area. With a maximum discharge capacity of 1134 cubic feet per second, this dam plays a vital role in managing water flow and storage in the region.
Although lacking specific details on emergency preparedness and risk assessment, Cnv Ranch Number 1 remains a significant feature in the local water infrastructure. Its presence along the TR-Bad River contributes to the overall water management efforts in South Dakota, ensuring sustainable water resources for both agricultural and environmental needs. Enthusiasts of water resources and climate can appreciate the role this dam plays in maintaining water security in the region.
Year Completed |
1953 |
Dam Length |
408 |
Dam Height |
25 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
39 |
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.
Cnv Ranch Number 1