Cass County Road Dam 26cc-10-12 Reservoir Report
Last Updated: December 6, 2025
Located in Cass County, Nebraska, the Cass County Road Dam 26cc-10-12 serves a vital role in flood risk reduction along the TR-S BR Weeping Water Creek.
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Summary
Constructed in 1996, this earth dam stands at a height of 35 feet and spans 955 feet in length, with a storage capacity of 139 acre-feet. With a significant hazard potential, the dam has been assessed as being in satisfactory condition as of June 2018.
Managed by the local government, this dam is regulated by the Nebraska Department of Natural Resources and undergoes regular inspections to ensure its structural integrity and effectiveness. The dam's primary purpose is flood risk reduction, with a normal storage capacity of 23 acre-feet and a maximum discharge of 805 cubic feet per second. Its location in Union, Nebraska, makes it a critical infrastructure for protecting the surrounding areas from potential flooding events.
In the event of an emergency, it is essential for the dam operators to have an Emergency Action Plan (EAP) in place, detailing contact information and procedures to be followed. With its strategic design and operational oversight, the Cass County Road Dam 26cc-10-12 stands as a testament to effective water resource management in the face of climate challenges.
Year Completed |
1996 |
Dam Length |
955 |
Dam Height |
35 |
River Or Stream |
TR-S BR WEEPING WATER CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
35 |
Drainage Area |
0.5 |
Nid Storage |
139 |
Structural Height |
41 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
41 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Weeping Water Creek At Union
|
20cfs |
Missouri River At Nebraska City
|
22500cfs |
Platte R At Louisville Ne
|
5580cfs |
Platte R Nr Ashland
|
6290cfs |
Salt Creek At Greenwood
|
125cfs |
Wahoo Cr At Ashland
|
78cfs |
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.
Cass County Road Dam 26cc-10-12