Mestl South Lagoon Dam Reservoir Report
Nearby: Winters Dam Mason Nelms Dam
Last Updated: December 5, 2025
Mestl South Lagoon Dam, located in Red Willow, Nebraska, is a privately owned structure that plays a crucial role in managing water resources in the area.
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Summary
Completed in 1970, this Earth-type dam stands at a height of 21.2 feet and has a storage capacity of 153.5 acre-feet, with a normal storage level of 130.8 acre-feet. Situated on the TR-Republican River, this dam helps regulate the flow of water and provides essential support for the surrounding ecosystem.
Managed by the Nebraska Department of Natural Resources, Mestl South Lagoon Dam is regularly inspected to ensure its structural integrity and overall safety. With a low hazard potential and a satisfactory condition assessment, this dam serves its primary purpose effectively. Despite its simple design, consisting of buttress and stone core types on a soil foundation, Mestl South Lagoon Dam is a vital component in the local water management infrastructure.
Climate and water resource enthusiasts will appreciate the significance of Mestl South Lagoon Dam in maintaining water quality and quantity in the region. With its efficient operation and state-regulated status, this dam stands as a testament to responsible water resource management. The strategic location of this Earth-type dam on the TR-Republican River demonstrates a commitment to sustainable practices and environmental stewardship in the face of changing climate conditions.
Year Completed |
1970 |
Dam Length |
600 |
Dam Height |
21.2 |
River Or Stream |
TR-REPUBLICAN RIVER |
Primary Dam Type |
Earth |
Surface Area |
14.4 |
Hydraulic Height |
21.2 |
Drainage Area |
0.43 |
Nid Storage |
153.5 |
Structural Height |
21.2 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
21 |
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.
Mestl South Lagoon Dam