Maschhoffs Lagoon Dam Reservoir Report

Last Updated: December 7, 2025

Maschhoffs Lagoon Dam, located in Furnas, Nebraska, is a privately owned structure that has been serving as an important water resource since its completion in 1980.


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Summary

This Earth dam stands at a height of 27.1 feet and has a storage capacity of 38.4 acre-feet, providing vital water retention for the surrounding area. Situated on the TR-Republican River, the dam plays a crucial role in managing water flow and supporting irrigation needs in the region.

Despite its low hazard potential, Maschhoffs Lagoon Dam is regulated and inspected by the Nebraska Department of Natural Resources, ensuring its structural integrity and safety. The dam, primarily constructed with stone core and soil foundation, spans 330 feet in length and covers a surface area of 3.6 acres. Its purpose goes beyond flood control, serving as a key asset for water storage and management in the area. The dam's proximity to the Republican River underscores its significance in the overall water resource management system.

While Maschhoffs Lagoon Dam has not been rated for its condition, it continues to be monitored with regular inspections, the last of which took place in June 2017. With a designated emergency action plan and low risk profile, the dam stands as a reliable infrastructure for water conservation in Nebraska. As climate change impacts water resources, structures like Maschhoffs Lagoon Dam play a vital role in safeguarding water availability and sustainability for the future.

Year Completed

1980

Dam Length

330

Dam Height

27.1

River Or Stream

TR-REPUBLICAN RIVER

Primary Dam Type

Earth

Surface Area

3.6

Hydraulic Height

27.1

Drainage Area

0.05

Nid Storage

38.4

Structural Height

27.1

Hazard Potential

Low

Foundations

Soil

Nid Height

27
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.