Dd No D-1 Reservoir Report
Nearby: Lemar Lakes Dam Dd No E-1
Last Updated: December 14, 2025
Dd No D-1, also known as Cimarron WS Dam D-1, is a crucial structure located in Cimarron, Kansas, designed by the USDA NRCS to mitigate flood risk along the Arkansas River.
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Summary
Completed in 1959, this earth dam stands at a height of 25.3 feet and has a storage capacity of 305.6 acre-feet. Despite its primary purpose of flood risk reduction, the dam also serves recreational activities in the area.
With a high hazard potential and a poor condition assessment, Dd No D-1 is in need of attention and maintenance to ensure its continued functionality. The dam lacks outlet gates and spillway controls, posing a potential risk to the surrounding community in the event of a significant flood event. Recent inspections in March 2020 revealed its poor condition, prompting the need for further evaluation and potential risk management measures to address its deficiencies.
As water resource and climate enthusiasts, it is imperative to monitor and advocate for the safety and maintenance of critical infrastructure like Dd No D-1 to protect the community and environment it serves. Collaborative efforts among local government agencies, regulatory bodies, and stakeholders are essential to ensure the dam's resilience and effectiveness in the face of changing climate patterns and increasing water-related risks. Let's work together to safeguard our water resources and infrastructure for a sustainable and secure future.
Year Completed |
1959 |
Dam Length |
1000 |
Dam Height |
25.3 |
River Or Stream |
ARKANSAS RIVER-TR |
Primary Dam Type |
Earth |
Surface Area |
14.2 |
Hydraulic Height |
13 |
Drainage Area |
1 |
Nid Storage |
305.6 |
Structural Height |
17 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Arkansas R At Garden City
|
0cfs |
Farmers Ditch Nr Deerfield
|
0cfs |
Arkansas R At Deerfield
|
0cfs |
Pawnee R Nr Burdett
|
0cfs |
Crooked C Nr Englewood
|
7cfs |
Cimarron River Near Forgan
|
20cfs |
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.
Dd No D-1