Siedhoff Dam Reservoir Report

Last Updated: December 5, 2025

Siedhoff Dam, located in Crete, Nebraska, is a privately owned irrigation structure designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources.


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Summary

Completed in 1949, this earth dam stands at a height of 17 feet and has a maximum storage capacity of 127 acre-feet. With a primary purpose of irrigation, the dam serves the surrounding area by providing water for agricultural use.

Despite its historical significance and utility, Siedhoff Dam has been assessed to be in poor condition, with a low hazard potential. The dam's last inspection in April 2019 highlighted the need for maintenance and improvement to ensure its continued safety and functionality. With a drainage area of 0.55 square miles and a maximum discharge of 620 cubic feet per second, the dam plays a crucial role in managing water resources in the region.

As water resource and climate enthusiasts, the unique characteristics and challenges of Siedhoff Dam present an opportunity to explore the intersection of infrastructure, conservation, and sustainability. By engaging with the dam's history, design, and current condition, enthusiasts can deepen their understanding of the complex relationship between human development and natural ecosystems, and advocate for responsible management practices to protect water resources for future generations.

Year Completed

1949

Dam Length

365

Dam Height

17

River Or Stream

TR-BIG BLUE RIVER

Primary Dam Type

Earth

Surface Area

6.4

Hydraulic Height

16

Drainage Area

0.55

Nid Storage

127

Structural Height

20

Hazard Potential

Low

Foundations

Soil

Nid Height

20
       
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.