Wallman Dairy Lagoon Dam Reservoir Report

Last Updated: December 6, 2025

Wallman Dairy Lagoon Dam, located in ODELL, Nebraska, is a privately owned structure regulated by the Nebraska Department of Natural Resources.


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Summary

Completed in 1999, this earth dam stands at a height of 23 feet and stretches 3035 feet in length, with a storage capacity of 239 acre-feet. The dam's primary purpose is listed as "Other," serving as a critical resource for water management in the area.

Situated along the TR-BIG INDIAN CREEK, Wallman Dairy Lagoon Dam has a low hazard potential and a satisfactory condition assessment as of the last inspection in 2018. With a drainage area of 0 and a surface area of 11 acres, this dam plays a crucial role in regulating water flow in the region. Despite its low risk profile, the dam is subject to regular inspections and enforcement by state regulatory agencies to ensure its continued safety and functionality for the surrounding community.

As an essential component of the local water infrastructure, Wallman Dairy Lagoon Dam serves as a key resource for water resource and climate enthusiasts. Its strategic location and design make it a vital asset for managing water resources in Jefferson County, Nebraska. The dam's low hazard potential, satisfactory condition, and efficient operation highlight its importance in safeguarding the surrounding environment and supporting sustainable water management practices in the region.

Year Completed

1999

Dam Length

3035

Dam Height

23

River Or Stream

TR-BIG INDIAN CREEK

Primary Dam Type

Earth

Surface Area

11

Hydraulic Height

23

Nid Storage

239

Structural Height

25

Hazard Potential

Low

Foundations

Soil

Nid Height

25
       
Seasonal Comparison

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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.