Scs-Lost Duck Creek Site-D5 Reservoir Report
Last Updated: December 17, 2025
SCS-Lost Duck Creek Site-D5 in Blackwell, Oklahoma, is a state-regulated dam designed by the USDA NRCS with the primary purpose of flood risk reduction.
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Summary
Completed in 1982, this earth dam stands at a height of 27 feet and has a length of 1600 feet, creating a reservoir with a storage capacity of 1460 acre-feet. The dam is located on Duck Creek in Kay County, Oklahoma, within the jurisdiction of the Oklahoma Water Resources Board. It is classified as having a low hazard potential and is currently in a not rated condition.
Despite its low hazard potential, the risk assessment for SCS-Lost Duck Creek Site-D5 indicates a very high risk level, with a rating of 1. The dam has not been modified in recent years and has only undergone inspections every 5 years, with the last inspection date listed as January 1, 1980. The dam features a controlled spillway and a single outlet valve, with no associated locks. While the dam currently meets state permitting, inspection, and enforcement requirements, there is a need for updated emergency action plans and risk management measures to address the high-risk assessment associated with this structure. For water resource and climate enthusiasts, SCS-Lost Duck Creek Site-D5 presents an intriguing case study in dam safety and risk management in the state of Oklahoma.
Year Completed |
1982 |
Dam Length |
1600 |
Dam Height |
27 |
River Or Stream |
DUCK CREEK |
Primary Dam Type |
Earth |
Surface Area |
310 |
Hydraulic Height |
27 |
Drainage Area |
3.3 |
Nid Storage |
1460 |
Structural Height |
27 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Chikaskia River Near Blackwell
|
231cfs |
Arkansas R At Arkansas City
|
828cfs |
Salt Fork Arkansas River At Tonkawa
|
498cfs |
Walnut R At Winfield
|
305cfs |
Slate C At Wellington
|
15cfs |
Chikaskia R Nr Corbin
|
145cfs |
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.
Scs-Lost Duck Creek Site-D5