East Cottonwood Canyon Reservoir Report
Nearby: Cottonwood Canyon Target Canyon
Last Updated: December 5, 2025
East Cottonwood Canyon is a public utility dam located in Lincoln, Nebraska, near the city of Brady.
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Summary
Built in 1941, this Earth-type dam stands at a height of 26 feet and has a storage capacity of 66 acre-feet, primarily used for irrigation purposes. The dam spans 273 feet in length and is regulated by the Nebraska Department of Natural Resources, with inspections conducted by the Federal Energy Regulatory Commission.
With a low hazard potential but high risk assessment rating, East Cottonwood Canyon serves as a crucial structure for water resource management in the area. The dam's location on the Supply Canal ensures a stable water supply for agricultural irrigation and hydroelectric purposes. Despite its age, the dam has not undergone recent condition assessments, highlighting the need for ongoing monitoring and maintenance to ensure its continued safety and efficacy in the face of changing climate conditions.
Year Completed |
1941 |
Dam Length |
273 |
Dam Height |
26 |
River Or Stream |
Supply Canal |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
20 |
Nid Storage |
66 |
Structural Height |
26 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
East Cottonwood Canyon
Fort McPherson