North Oak Creek 3-A Reservoir Report
Last Updated: December 6, 2025
North Oak Creek 3-A is a vital flood risk reduction structure located in Valparaiso, Nebraska, along the TR-North Oak Creek.
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Summary
Built in 1980 by the USDA NRCS, this earth dam stands at a height of 48 feet and has a storage capacity of 1067 acre-feet, serving as a crucial defense against potential flooding in the region. The dam's primary purpose is flood risk reduction, and it is regulated, permitted, inspected, and enforced by the Nebraska Department of Natural Resources.
With a drainage area of 3.3 square miles and a maximum discharge capacity of 1960 cubic feet per second, North Oak Creek 3-A plays a significant role in safeguarding the surrounding community and environment from the impacts of extreme weather events. The dam's satisfactory condition assessment and low hazard potential highlight its effectiveness in mitigating flood risks in the area. Despite its importance, the dam has not been modified since its completion, indicating its resilience and reliability in providing flood protection for over four decades. For water resource and climate enthusiasts, North Oak Creek 3-A stands as a testament to the essential role of infrastructure in enhancing resilience to changing environmental conditions.
Year Completed |
1980 |
Dam Length |
1362 |
Dam Height |
48 |
River Or Stream |
TR-NORTH OAK CREEK |
Primary Dam Type |
Earth |
Surface Area |
36 |
Hydraulic Height |
47 |
Drainage Area |
3.3 |
Nid Storage |
1067 |
Structural Height |
49 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
49 |
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.
North Oak Creek 3-A
Red Cedar