Ex-1-84 Dam Reservoir Report
Nearby: D & B Ranch Dam Singleton Dam 1
Last Updated: December 5, 2025
The Ex-1-84 Dam, located in Kimball, Nebraska, is a privately owned structure that plays a crucial role in flood risk reduction along the TR-ROCKY HOLLOW stream.
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Summary
Built by the USDA NRCS in 1985, this earth dam stands at a height of 17.5 feet and has a storage capacity of 59.4 acre-feet. With a low hazard potential and satisfactory condition assessment, the dam is regularly inspected by the Nebraska Department of Natural Resources to ensure its structural integrity.
The primary purpose of the Ex-1-84 Dam goes beyond flood control, serving various other functions in water resource management. With a drainage area of 0.61 square miles and a normal storage capacity of 46.5 acre-feet, the dam plays a vital role in regulating water flow and maintaining water quality in the region. Despite its modest size, the dam's impact on the local ecosystem and community resilience is significant, making it a key infrastructure asset in Nebraska's water management strategy.
Managed by a private owner, the Ex-1-84 Dam stands as a testament to the collaborative efforts between government agencies and private stakeholders in ensuring effective water resource management. With its strategic location and design, this earth dam continues to safeguard the surrounding area from potential flooding events while contributing to the overall sustainability of water resources in Kimball County.
Year Completed |
1985 |
Dam Length |
550 |
Dam Height |
17.5 |
River Or Stream |
TR-ROCKY HOLLOW |
Primary Dam Type |
Earth |
Surface Area |
6.6 |
Hydraulic Height |
17.5 |
Drainage Area |
0.61 |
Nid Storage |
59.4 |
Structural Height |
17.5 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
18 |
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.
Ex-1-84 Dam