Dam 2-7-5w Reservoir Report
Nearby: Griess Lagoon Dam Benson Brothers Dam
Last Updated: December 6, 2025
Dam 2-7-5w, located in Clay County, Nebraska, is a crucial structure owned by the local government and regulated by the Nebraska Department of Natural Resources.
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Summary
Built in 1994 by the Upper Big Blue NRD, this earth dam stands at a height of 14 feet and serves primarily for flood risk reduction along the TR-School Creek. With a storage capacity of 57 acre-feet and a drainage area of 0.23 square miles, Dam 2-7-5w plays a vital role in mitigating potential hazards and maintaining water resources in the region.
Despite its satisfactory condition assessment, Dam 2-7-5w is categorized with a high hazard potential, highlighting the importance of regular inspections and maintenance. The dam's emergency action plan (EAP) was last revised in November 2016, with an inspection frequency of once per year. The structure has a structural height of 19 feet and a hydraulic height of 13 feet, with a maximum discharge capacity of 1259 cubic feet per second, further emphasizing its significance in managing water flow and potential flooding risks in the area.
As part of flood risk reduction efforts, Dam 2-7-5w serves as a key infrastructure project in the region, safeguarding against potential disasters and ensuring the safety of nearby communities. With its strategic location and design features, this earth dam continues to play a crucial role in water resource management and climate resilience efforts in Clay County, Nebraska.
Year Completed |
1994 |
Dam Length |
443 |
Dam Height |
14 |
River Or Stream |
TR-SCHOOL CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
13 |
Drainage Area |
0.23 |
Nid Storage |
57 |
Structural Height |
19 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
19 |
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 2-7-5w