Boehler Dam Reservoir Report

Last Updated: December 7, 2025

Boehler Dam in Harlan, Nebraska, constructed in 1945, serves as a critical water resource management infrastructure on TR-FLAG CREEK.


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Summary

Owned privately, the dam stands at a height of 13.3 feet and has a storage capacity of 90.4 acre-feet, with a normal storage of 46.7 acre-feet over a surface area of 11.8 acres. The dam's low hazard potential and earth-based construction make it a reliable structure for flood control and water supply purposes.

Managed by the Nebraska Department of Natural Resources, Boehler Dam is regulated, inspected, and enforced by state agencies to ensure its safety and functionality. With a condition assessment that is currently not rated, the dam meets all state permitting requirements and undergoes inspections every 10 years. The dam has not been modified since its completion, and its emergency action plan status and risk assessment information are not currently available. This essential water management structure plays a crucial role in safeguarding the local community and environment from potential water-related risks.

Situated in Congressional District 03, Nebraska, Boehler Dam is overseen by Representative Adrian Smith (R) and falls under the jurisdiction of the Omaha District of the US Army Corps of Engineers. With its stone core and soil foundation, the dam's design reflects a combination of structural stability and environmental sustainability. Water resource and climate enthusiasts can appreciate the strategic location and purposeful construction of Boehler Dam in efficiently managing water flow and storage to benefit the surrounding area.

Year Completed

1945

Dam Length

210

Dam Height

13.3

River Or Stream

TR-FLAG CREEK

Primary Dam Type

Earth

Surface Area

11.8

Hydraulic Height

13.3

Drainage Area

4.48

Nid Storage

90.4

Structural Height

13.3

Hazard Potential

Low

Foundations

Soil

Nid Height

13
       
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.