Drohman Dam 1 Reservoir Report
Last Updated: December 5, 2025
Drohman Dam 1, located in Nuckolls, Nebraska, is a privately owned structure designed by the USDA NRCS to assist in flood risk reduction along the TR-Little Blue River.
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Summary
Completed in 1970, this earth dam stands at a height of 20 feet and spans 250 feet in length, with a storage capacity of 59 acre-feet. The dam is regulated by the Nebraska Department of Natural Resources and undergoes regular inspections to ensure its structural integrity.
With a low hazard potential and a satisfactory condition assessment as of April 2020, Drohman Dam 1 plays a crucial role in protecting the surrounding area from potential flooding events. The dam's primary purpose extends beyond flood control to include other uses, making it a versatile and valuable resource for water management in the region. As part of its operations, the dam is subject to state jurisdiction and permitting, with enforcement measures in place to maintain compliance with regulatory standards.
As a key component of the water infrastructure in Nuckolls County, Drohman Dam 1 serves as a testament to the collaborative efforts between private ownership and government agencies in safeguarding communities against the impacts of extreme weather events. Its location along the TR-Little Blue River underscores the importance of proactive measures in managing water resources and mitigating climate-related risks. With ongoing monitoring and maintenance, Drohman Dam 1 continues to stand as a vital asset in the region's resilience against potential flood threats.
Year Completed |
1970 |
Dam Length |
250 |
Dam Height |
20 |
River Or Stream |
TR-LITTLE BLUE RIVER |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
18 |
Drainage Area |
0.2 |
Nid Storage |
59 |
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.
Drohman Dam 1