Dam 22-9-4 Reservoir Report
Nearby: Dam 20-9-4w Friesen Dam 1673
Last Updated: December 6, 2025
Dam 22-9-4, located in McCool Junction, Nebraska, is a local government-owned earth dam primarily used for irrigation purposes along the TR-W FK Big Blue River.
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Summary
Completed in 1984, this dam stands at a height of 31 feet with a hydraulic height of 24 feet and a length of 385 feet, providing a maximum storage capacity of 230 acre-feet. With a drainage area of 2.5 square miles and a normal storage capacity of 44 acre-feet, Dam 22-9-4 plays a crucial role in water resource management in the region.
Maintained and regulated by the Nebraska Department of Natural Resources, Dam 22-9-4 has a low hazard potential and is in satisfactory condition as of its last inspection in May 2016. Despite its age, this dam continues to effectively serve its purpose and contribute to the local irrigation infrastructure. With a maximum discharge capacity of 620 cubic feet per second, Dam 22-9-4 remains a key component of water management for agricultural activities in the area, showcasing the importance of sustainable water resource practices in the face of changing climate patterns.
As a vital piece of infrastructure in the region, Dam 22-9-4 serves as a reminder of the importance of proactive maintenance and monitoring of water resources in the face of climate variability. With its strategic location and efficient design, this dam stands as a testament to the resilience of water management systems in adapting to evolving environmental challenges. For water resource and climate enthusiasts, Dam 22-9-4 offers a fascinating case study in the intersection of engineering, natural resource management, and climate resilience.
Year Completed |
1984 |
Dam Length |
385 |
Dam Height |
31 |
River Or Stream |
TR-W FK BIG BLUE RIVER |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
24 |
Drainage Area |
2.5 |
Nid Storage |
230 |
Structural Height |
31 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
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.
Dam 22-9-4