Phillips Dam Reservoir Report
Nearby: Nikont Dam Hansen Dam 1239
Last Updated: December 12, 2025
Phillips Dam, located in Box Butte, Nebraska, serves as a crucial flood risk reduction structure along the North Branch of Point of Rocks Creek.
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Summary
Built in 1935, this private earth dam stands at a height of 12.4 feet, with a storage capacity of 195.3 acre-feet and a drainage area of 13.59 square miles. The dam's primary purpose is flood risk reduction and it is regulated by the Nebraska Department of Natural Resources.
With a low hazard potential and a satisfactory condition assessment, Phillips Dam has been inspected regularly, with the last assessment conducted in January 2014. The dam's emergency action plan and risk assessment measures are currently unavailable, but its operation and maintenance have been deemed satisfactory. Despite its age, Phillips Dam continues to play a vital role in protecting the surrounding area from potential flooding events, showcasing the importance of proper infrastructure in mitigating the impacts of climate change on water resources.
Year Completed |
1935 |
Dam Length |
651 |
Dam Height |
12.4 |
River Or Stream |
N BR POINT OF ROCKS CREEK |
Primary Dam Type |
Earth |
Surface Area |
36.84 |
Hydraulic Height |
12.4 |
Drainage Area |
13.59 |
Nid Storage |
195.3 |
Structural Height |
12.4 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
12 |
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.
Phillips Dam