Anderson Dam 587 Reservoir Report
Nearby: Cross Group Dam Brauer Dam
Last Updated: December 5, 2025
Anderson Dam 587, located in Banner, Nebraska, is a privately owned structure designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources.
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Summary
Completed in 1969, this earth dam stands at a height of 36 feet and serves a primary purpose of flood risk reduction along the TR-WILLOW CREEK river. With a storage capacity of 231 acre-feet, the dam covers a surface area of 6 acres and has a drainage area of 1.9 square miles.
Despite its low hazard potential and satisfactory condition assessment as of September 2017, Anderson Dam 587 undergoes inspections every five years to ensure its structural integrity and safety. The dam is equipped with outlet gates and has a maximum discharge capacity of 2118 cubic feet per second. While no spillway type or width is specified, the dam's associated structures are limited to its core made of stone and foundation on soil.
For water resource and climate enthusiasts, Anderson Dam 587 offers a glimpse into the vital role of privately owned structures in flood risk reduction efforts. With its strategic location in Nebraska and regulation by state authorities, this dam showcases the collaboration between government agencies and private entities to manage water resources effectively. As a key component of the local infrastructure, Anderson Dam 587 plays a crucial role in safeguarding communities from potential flooding events and ensuring the sustainable management of water resources in the region.
Year Completed |
1969 |
Dam Length |
676 |
Dam Height |
36 |
River Or Stream |
TR-WILLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
35 |
Drainage Area |
1.9 |
Nid Storage |
231 |
Structural Height |
38 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
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.
Anderson Dam 587