Preheim Lagoon Dam Reservoir Report
Nearby: Thieszen Dam Bergen Dam
Last Updated: December 6, 2025
Preheim Lagoon Dam, located in Hamilton County, Nebraska, is a privately owned earth dam with a height of 20 feet and a length of 677 feet.
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Summary
Completed in 1960, this dam serves a variety of purposes, including providing storage for 92 acre-feet of water and covering a surface area of 6 acres. The dam is regulated by the Nebraska Department of Natural Resources, with inspection, permitting, and enforcement carried out by state agencies to ensure its safety and compliance with regulations.
Despite its low hazard potential, Preheim Lagoon Dam is regularly inspected and deemed to be in satisfactory condition as of its last assessment in April 2018. The dam poses no immediate risk of failure, and emergency action plans are in place to address any potential issues. With a drainage area of 0.2 square miles and a maximum discharge of 0 cubic feet per second, this dam plays a crucial role in managing water resources in the region and mitigating the impacts of flooding along the TR-W FK Big Blue River.
As a vital piece of infrastructure in the area, Preheim Lagoon Dam provides essential water storage and management capabilities for the surrounding community. With its solid stone core and soil foundation, this dam stands as a testament to effective engineering and responsible stewardship of water resources. Climate and water enthusiasts can appreciate the significance of this structure in ensuring the resilience of the local ecosystem and the protection of valuable water sources for future generations.
Year Completed |
1960 |
Dam Length |
677 |
Dam Height |
20 |
River Or Stream |
TR-W FK BIG BLUE RIVER |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
19 |
Drainage Area |
0.2 |
Nid Storage |
92 |
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.
Preheim Lagoon Dam