Floodwater Ret Dam Ss-2 Reservoir Report
Last Updated: December 5, 2025
Located in Sedgwick, Colorado, Floodwater Retention Dam Ss-2 is a key infrastructure designed by the USDA NRCS to mitigate flood risks along the South Platte River.
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Summary
Completed in 1980, this earth dam stands at 33 feet high and spans over 2308 feet in length, providing essential flood risk reduction measures for the local community. With a storage capacity of 743 acre-feet and a hydraulic height of 26 feet, the dam plays a crucial role in safeguarding the region against potential flooding events.
Managed and regulated by the Colorado Department of Water Resources, Floodwater Retention Dam Ss-2 has a low hazard potential and is deemed to be in satisfactory condition as of the last inspection in 2015. The dam's uncontrolled spillway, with a width of 212 feet, ensures efficient water discharge during peak flow events, further enhancing its flood protection capabilities. With its primary purpose focused on flood risk reduction, this essential structure serves as a testament to effective water resource management and disaster preparedness in the region.
As a vital component of the local government's flood control strategy, Floodwater Retention Dam Ss-2 stands as a testament to effective collaboration between federal and state agencies in addressing climate-related challenges. With its moderate risk assessment and regular inspection protocols in place, the dam continues to play a pivotal role in safeguarding the community against potential flooding threats. As climate change intensifies, structures like Floodwater Retention Dam Ss-2 highlight the importance of resilient infrastructure in adapting to the evolving impacts of water resource management and climate variability.
Year Completed |
1980 |
Dam Length |
2308 |
Dam Height |
33 |
River Or Stream |
SOUTH PLATTE-TR |
Primary Dam Type |
Earth |
Surface Area |
87 |
Hydraulic Height |
26 |
Drainage Area |
7 |
Nid Storage |
743 |
Structural Height |
45 |
Outlet Gates |
Uncontrolled - 0 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
45 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
South Platte River Near Crook
|
166cfs |
S. Platte R. At Julesburg
|
-999cfs |
South Platte River At Roscoe Nebr
|
213cfs |
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.
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