South Fork 3-C Reservoir Report
Nearby: South Fork 3-D South Fork 3-4
Last Updated: December 13, 2025
South Fork 3-C is a local government-owned earth dam located in Pawnee, Nebraska, designed by USDA NRCS to primarily reduce flood risks along the TR-NEGRO BRANCH CREEK.
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Summary
Completed in 1981, this dam stands at a height of 38 feet with a hydraulic height of 36 feet, offering a storage capacity of 309 acre-feet and a normal storage of 63 acre-feet. With a low hazard potential and satisfactory condition assessment as of March 2017, South Fork 3-C plays a crucial role in flood risk reduction in the region.
Managed by the Nebraska Department of Natural Resources, this dam is subject to state regulations, permitting, inspection, and enforcement. Its location in DUBOIS, Nebraska, within the Omaha District, underpins its importance in water resource management and climate resilience efforts. With a drainage area of 1 square mile and a maximum discharge of 895 cubic feet per second, South Fork 3-C serves as a vital infrastructure for water control and conservation in the area.
Despite its age, South Fork 3-C remains a critical piece of infrastructure for flood risk reduction in Pawnee, Nebraska. With its stone core and soil foundation, this dam continues to provide essential water storage and drainage functions for the surrounding area. Its existence highlights the ongoing efforts to manage water resources and mitigate the impacts of climate change in the region, demonstrating the importance of sustainable infrastructure for a resilient future.
Year Completed |
1981 |
Dam Length |
848 |
Dam Height |
38 |
River Or Stream |
TR-NEGRO BRANCH CREEK |
Primary Dam Type |
Earth |
Surface Area |
11 |
Hydraulic Height |
36 |
Drainage Area |
1 |
Nid Storage |
309 |
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.
South Fork 3-C