Hansen Dam 323 Reservoir Report
Last Updated: December 5, 2025
Hansen Dam 323 is a privately owned structure located in Lincoln, Nebraska, designed by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
Completed in 1965, this earth dam stands at a height of 12 feet and has a maximum storage capacity of 200 acre-feet, with normal storage at 95 acre-feet. With a drainage area of 2.1 square miles and a maximum discharge capacity of 140 cubic feet per second, Hansen Dam 323 plays a crucial role in managing water resources in the region.
Despite its importance, Hansen Dam 323 is currently in poor condition, as assessed in October 2017. It has a low hazard potential, but its poor condition raises concerns about its long-term effectiveness in flood risk reduction. The dam has not been modified in recent years, and there is no Emergency Action Plan (EAP) in place, indicating a need for improved risk management measures and emergency preparedness. While the dam has state regulatory oversight and inspection, further maintenance and upgrades may be necessary to ensure its continued functionality and safety.
For water resource and climate enthusiasts, Hansen Dam 323 serves as a reminder of the vital role that infrastructure plays in mitigating flood risks and managing water resources. As climate change intensifies extreme weather events, the need for well-maintained and resilient structures like Hansen Dam 323 becomes increasingly apparent. With a focus on improving its condition, implementing risk management measures, and enhancing emergency preparedness, Hansen Dam 323 can continue to safeguard the community against flooding and contribute to sustainable water resource management in the region.
Year Completed |
1965 |
Dam Length |
505 |
Dam Height |
12 |
River Or Stream |
TR-WHITE HORSE CREEK |
Primary Dam Type |
Earth |
Surface Area |
24 |
Hydraulic Height |
11 |
Drainage Area |
2.1 |
Nid Storage |
200 |
Structural Height |
15 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
South Platte River At North Platte
|
1290cfs |
Dismal River Near Thedford
|
272cfs |
South Platte River At Roscoe Nebr
|
213cfs |
Middle Loup River At Dunning
|
526cfs |
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.
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