Eugene Mazour Dam Reservoir Report

Last Updated: December 5, 2025

Eugene Mazour Dam, located in DEWEESE, Nebraska, is a privately owned structure designed by the USDA NRCS and regulated by the NE DNR.


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Summary

Completed in 1990, this earth dam stands at a height of 16 feet with a structural height of 23 feet, serving primarily for irrigation purposes. With a storage capacity of 52 acre-feet, the dam covers a surface area of 4 acres and drains a 0.4 square mile watershed through the TR-LIBERTY CREEK.

Despite its low hazard potential and satisfactory condition assessment, Eugene Mazour Dam is subject to regular state inspections and enforcement to ensure its operational safety. The dam's spillway type, outlet gates, and associated structures are not specified, but its last inspection in May 2018 revealed no significant concerns. The dam's emergency action plan (EAP) status, risk assessment, and inundation maps preparedness remain unspecified, suggesting potential areas for improvement in emergency preparedness.

Eugene Mazour Dam, managed by a private entity, plays a crucial role in supporting irrigation activities in the region while maintaining a low risk profile. As water resource and climate enthusiasts, the dam's design, regulatory oversight, and storage capacity offer valuable insights into the sustainable management of water resources in Nebraska. Further attention to emergency preparedness and risk assessment could enhance the dam's resilience to potential challenges in the future.

Year Completed

1990

Dam Length

370

Dam Height

16

River Or Stream

TR-LIBERTY CREEK

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

16

Drainage Area

0.4

Nid Storage

52

Structural Height

23

Hazard Potential

Low

Foundations

Soil

Nid Height

23
       
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.