Lobner Dam Reservoir Report
Nearby: Lobner Group Dam Woolford Dam
Last Updated: December 13, 2025
Lobner Dam, located in Garden County, Nebraska, is a privately owned structure designed by the USDA NRCS and completed in 1976.
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Summary
This earth dam serves the primary purpose of flood risk reduction along Ash Creek, with a hydraulic height of 21.5 feet and a structural height of 24.6 feet. The dam stands at a height of 21.5 feet and stretches 642 feet in length, providing a storage capacity of 204.5 acre-feet.
Despite its low hazard potential and satisfactory condition assessment, Lobner Dam is regulated by the Nebraska Department of Natural Resources. It undergoes regular state inspections and enforcement activities to ensure its safe operation and compliance with state regulations. The dam's normal storage capacity is 33.1 acre-feet, with a drainage area of 2.06 square miles and a maximum discharge capacity of 846 cubic feet per second.
Water resource and climate enthusiasts will appreciate Lobner Dam's contribution to flood risk reduction in the region, as well as its role in managing water flow along Ash Creek. With its stone core and soil foundation, the dam stands as a testament to effective water resource management and engineering. Its location in Garden County, Nebraska, highlights the importance of sustainable infrastructure in safeguarding communities against potential flooding events.
Year Completed |
1976 |
Dam Length |
642 |
Dam Height |
21.5 |
River Or Stream |
ASH CREEK |
Primary Dam Type |
Earth |
Surface Area |
8.3 |
Hydraulic Height |
21.5 |
Drainage Area |
2.06 |
Nid Storage |
204.5 |
Structural Height |
24.6 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
S. Platte R. At Julesburg
|
-999cfs |
South Platte River At Roscoe Nebr
|
216cfs |
South Platte River Near Crook
|
166cfs |
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.
Lobner Dam