Sukup Dam 1 Reservoir Report
Nearby: Sukup Upper Dam Jelinek Dam
Last Updated: December 15, 2025
Sukup Dam 1, located in Knox, Nebraska, was completed in 1955 by the USDA NRCS and serves as a crucial irrigation structure in the region.
°F
°F
mph
Wind
%
Humidity
Summary
The dam, primarily made of earth and stone, stands at a height of 23 feet with a storage capacity of 66 acre-feet. While its primary purpose is irrigation, the dam also helps in managing the flow of the TR-MID BR VERDIGRE CREEK, with a maximum discharge capacity of 787 cubic feet per second.
Despite its importance in water resource management, Sukup Dam 1 is currently assessed to be in poor condition, with a low hazard potential. The Nebraska Department of Natural Resources regulates and inspects the dam regularly to ensure its safety and functionality. With a drainage area of 1.4 square miles, the dam plays a vital role in maintaining water supply for agricultural activities in the surrounding area. The dam's location and design make it a key asset for water management in the region.
As climate change continues to impact water resources, structures like Sukup Dam 1 become increasingly essential for sustainable water use. With its modest surface area of 4 acres and a historical significance dating back to over six decades, the dam represents a blend of engineering expertise and environmental stewardship. As stakeholders work towards improving its condition and resilience, Sukup Dam 1 remains a symbol of the intersection between human ingenuity and nature's forces in the realm of water resource management.
Year Completed |
1955 |
Dam Length |
268 |
Dam Height |
23 |
River Or Stream |
TR-MID BR VERDIGRE CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
21 |
Drainage Area |
1.4 |
Nid Storage |
66 |
Structural Height |
22 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Verdigre C Nr Verdigre
|
206cfs |
Niobrara River Nr. Verdel
|
517cfs |
Bazile Creek At Center
|
85cfs |
Bazile Creek Near Niobrara
|
192cfs |
Ponca Creek At Verdel
|
23cfs |
Elkhorn River At Ewing
|
89cfs |
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.
Sukup Dam 1