Tallon Dam Reservoir Report
Nearby: Johnson Dam 672 Talbot Dam
Last Updated: December 13, 2025
Tallon Dam, located in Sheridan County, Nebraska, is a privately owned structure designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources.
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Summary
Completed in 1965, this earth dam stands at a height of 29 feet and serves multiple purposes, including flood risk reduction. With a storage capacity of 41 acre-feet and a drainage area of 0.6 square miles, Tallon Dam plays a crucial role in managing water resources in the region.
The dam's significant hazard potential is mitigated by satisfactory condition assessments, with the last inspection taking place in June 2018. Despite its age, Tallon Dam continues to operate effectively, with a normal storage capacity of 24 acre-feet and a maximum discharge of 133 cubic feet per second. The dam's structural design, consisting of buttress and stone cores on a soil foundation, ensures its resilience in the face of potential risks.
As climate change exacerbates water-related challenges, structures like Tallon Dam play a vital role in safeguarding communities and ecosystems from flooding and other water-related hazards. With its strategic location along the TR-Whiteclay Creek, Tallon Dam exemplifies the importance of effective water resource management and infrastructure maintenance in adapting to the impacts of a changing climate.
Year Completed |
1965 |
Dam Length |
294 |
Dam Height |
29 |
River Or Stream |
TR-WHITECLAY CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
26 |
Drainage Area |
0.6 |
Nid Storage |
41 |
Structural Height |
29 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
29 |
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.
Tallon Dam