Kotlarz Dam Reservoir Report
Nearby: Horn Dam 215 Hellbusch Dam 330
Last Updated: December 15, 2025
Kotlarz Dam, located in Nance, Nebraska, along the TR-LOUP RIVER, was completed in 1975 by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
This private dam stands at a height of 26 feet and has a hydraulic height of 25 feet, with a length of 220 feet. With a storage capacity of 61 acre-feet and a normal storage of 21 acre-feet, it serves as a vital structure in managing water resources in the region.
Managed by the NE DNR, Kotlarz Dam is state-regulated and inspected periodically to ensure its structural integrity and compliance with safety standards. Despite being classified as having a low hazard potential, the dam's condition has been assessed as satisfactory as of April 2020. With a drainage area of 0.8 square miles and a maximum discharge capacity of 140 cubic feet per second, the dam plays a crucial role in mitigating flood risks and protecting the surrounding area from potential water-related disasters.
As a key element in the water management infrastructure of Nebraska, Kotlarz Dam not only safeguards the local community from flood hazards but also contributes to the overall resilience of the region in the face of changing climate patterns. With its efficient design and satisfactory condition, the dam stands as a testament to effective water resource management and serves as a model for sustainable infrastructure development in the context of climate change.
Year Completed |
1975 |
Dam Length |
220 |
Dam Height |
26 |
River Or Stream |
TR-LOUP RIVER |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
25 |
Drainage Area |
0.8 |
Nid Storage |
61 |
Structural Height |
26 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Loup River Power Canal Near Genoa
|
93cfs |
Warm Slough Nr Central City
|
0cfs |
Silver Cr
|
3cfs |
Beaver Creek At Genoa
|
114cfs |
Loup River Near Genoa
|
2300cfs |
Prairie Creek Nr Silver Creek Nebr
|
5cfs |
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.
Kotlarz Dam