Blackwood Creek 61-A Reservoir Report
Last Updated: December 5, 2025
Blackwood Creek 61-A is a key flood risk reduction structure located in Hayes County, Nebraska.
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Summary
Built in 1983, this earth dam designed by USDA NRCS stands at a height of 37 feet and spans 425 feet in length. With a storage capacity of 449 acre-feet and a drainage area of 2.7 square miles, the dam plays a crucial role in managing water flow and mitigating flood risks in the area.
Managed by the local government and regulated by the Nebraska Department of Natural Resources, Blackwood Creek 61-A has a low hazard potential and is deemed to be in satisfactory condition as of the last assessment in May 2020. The dam's primary purpose is flood risk reduction, reflecting its importance in safeguarding the surrounding community from potential water-related disasters. With a history of regular inspections and state permitting, Blackwood Creek 61-A exemplifies the collaborative efforts between government agencies and local stakeholders in ensuring water resource sustainability and climate resilience.
Located in the Blackwood Creek watershed and under the jurisdiction of the Omaha District of the US Army Corps of Engineers, Blackwood Creek 61-A serves as a vital infrastructure for water management in the region. With its stone core and soil foundation, the dam demonstrates a commitment to utilizing natural resources for effective flood control. As water resource and climate enthusiasts, understanding the significance of structures like Blackwood Creek 61-A highlights the interconnectedness between water infrastructure, environmental protection, and community safety in the face of changing climatic conditions.
Year Completed |
1983 |
Dam Length |
425 |
Dam Height |
37 |
River Or Stream |
TR-BLACKWOOD CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
36 |
Drainage Area |
2.7 |
Nid Storage |
449 |
Structural Height |
41 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
41 |
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.
Blackwood Creek 61-A