North Oak Creek 5-F Reservoir Report
Last Updated: December 6, 2025
North Oak Creek 5-F is a local government-owned dam located in Valparaiso, Nebraska, designed by the USDA NRCS and regulated by the NE DNR.
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Summary
Completed in 1975, this earth dam stands at a height of 40 feet, with a hydraulic height of 37 feet and a structural height of 42 feet. With a storage capacity of 368 acre-feet and a drainage area of 1.5 square miles, the dam serves primarily for flood risk reduction along the TR-North Oak Creek.
The dam's hazard potential is categorized as low, with a satisfactory condition assessment as of April 2019. The last inspection date was in April 2019, with a frequency of every 5 years. The dam's primary purpose remains flood risk reduction, and it boasts a normal storage capacity of 130 acre-feet. Despite its age, North Oak Creek 5-F continues to play a crucial role in managing water resources and mitigating potential climate-related risks in the region.
Year Completed |
1975 |
Dam Length |
1012 |
Dam Height |
40 |
River Or Stream |
TR-NORTH OAK CREEK |
Primary Dam Type |
Earth |
Surface Area |
19 |
Hydraulic Height |
37 |
Drainage Area |
1.5 |
Nid Storage |
368 |
Structural Height |
42 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
42 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wahoo Creek At Ithaca
|
53cfs |
Oak Creek At Air Park Rd At Lincoln
|
15cfs |
Little Salt Creek Near Lincoln
|
3cfs |
Rock Creek Near Ceresco
|
14cfs |
Platte River At North Bend
|
4920cfs |
Salt Creek At 70th St. At Lincoln
|
92cfs |
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 5-F
Timber Point