Jones Dam 821 Reservoir Report
Nearby: Ormesher Dam Don Littrel Dam
Last Updated: December 7, 2025
Jones Dam 821, located in Dawes, Nebraska, is a privately-owned irrigation dam designed by the USDA NRCS in 1962.
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Summary
The dam stands at a height of 16 feet, with a hydraulic height of 15 feet and a structural height of 20 feet. It has a length of 2200 feet and provides a storage capacity of 189 acre-feet for irrigation purposes.
Despite its low hazard potential, Jones Dam 821 is in poor condition as of the last assessment in July 2019. The dam is regulated by the Nebraska Department of Natural Resources, with state permitting, inspection, and enforcement in place. The dam's primary purpose is irrigation, serving the surrounding area with a normal storage capacity of 37 acre-feet and a maximum discharge of 740 cubic feet per second.
Located on the TR-White River, Jones Dam 821 plays a crucial role in water resource management in the region. As water resource and climate enthusiasts, it is important to monitor and assess the condition of dams like Jones Dam 821 to ensure they continue to serve their intended purposes effectively and safely in the face of changing environmental conditions.
Year Completed |
1962 |
Dam Length |
2200 |
Dam Height |
16 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Surface Area |
26 |
Hydraulic Height |
15 |
Drainage Area |
2 |
Nid Storage |
189 |
Structural Height |
20 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
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.
Jones Dam 821