Guenther Wortmann Road Dam Reservoir Report
Nearby: Steffen Dam Bartz Dam
Last Updated: December 13, 2025
Located in Knox, Nebraska, the Guenther Wortmann Road Dam is a local government-owned structure designed by the USDA NRCS for grade stabilization purposes.
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Summary
Completed in 1974, this earth dam stands at a height of 18.9 feet and spans a length of 1120 feet, with a storage capacity of 222.9 acre-feet and a drainage area of 2.18 square miles. Situated along the TR-Missouri River, the dam serves to mitigate erosion and stabilize the surrounding landscape, contributing to water resource management in the region.
Managed by the Nebraska Department of Natural Resources, the Guenther Wortmann Road Dam has a low hazard potential and has not been rated for its condition as of the last inspection in May 2017. With a normal storage capacity of 3.6 acre-feet and a surface area of 3.3 acres, the dam plays a crucial role in regulating water flow and protecting downstream areas from potential flooding events. Despite its modest size, the dam represents a significant investment in water infrastructure and environmental conservation efforts in the area.
As a key component of the local water management system, the Guenther Wortmann Road Dam underscores the importance of sustainable infrastructure development for climate resilience. Its strategic location and design highlight the intersection of water resource management and climate adaptation, showcasing the collaborative efforts between government agencies and conservation organizations to safeguard communities and ecosystems against the impacts of changing weather patterns.
Year Completed |
1974 |
Dam Length |
1120 |
Dam Height |
18.9 |
River Or Stream |
TR-MISSOURI RIVER |
Primary Dam Type |
Earth |
Surface Area |
3.3 |
Hydraulic Height |
18.9 |
Drainage Area |
2.18 |
Nid Storage |
222.9 |
Structural Height |
18.9 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
19 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
James River Nr Yankton Sd
|
752cfs |
Bazile Creek At Center
|
85cfs |
Bazile Creek Near Niobrara
|
192cfs |
Verdigre C Nr Verdigre
|
206cfs |
James R Near Scotland Sd
|
706cfs |
Vermillion River Nr Vermillion Sd
|
33cfs |
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.
Guenther Wortmann Road Dam
Weigand Marina