Dd No 25-66 Reservoir Report
Nearby: Dd No 25-31 153
Last Updated: December 5, 2025
Dd No 25-66, located in Alma, Kansas, is a local government-owned dam designed by BG Engineering for the primary purpose of flood risk reduction along the Spring Creek-TR river.
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Summary
This earth-type dam stands at a height of 36 feet with a length of 334 feet, providing a storage capacity of 170 acre-feet and a surface area of 6 acres. Despite its low hazard potential and moderate risk assessment rating, the dam has not been fully assessed for its condition and emergency preparedness measures.
Managed by the Kansas Department of Agriculture, Dd No 25-66 is regulated, permitted, inspected, and enforced by the state to ensure its structural integrity and functionality. The dam is equipped with an uncontrolled spillway with a width of 40 feet, serving the surrounding community by mitigating potential flood events. While the dam has not been modified in recent years and lacks outlet gates, its normal storage capacity of 59.3 acre-feet plays a crucial role in protecting the area from excessive water flow during heavy rainfall.
As water resource and climate enthusiasts, it is vital to monitor the condition and risk assessment of Dd No 25-66 to guarantee its effectiveness in flood risk reduction. With the support of local and state agencies, the dam continues to serve its purpose in safeguarding the community against potential inundation events, highlighting the importance of maintaining and evaluating critical infrastructure for water management and climate resilience.
Dam Length |
334 |
Dam Height |
36 |
River Or Stream |
SPRING CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
0.57 |
Nid Storage |
170 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
36 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Kings C Nr Manhattan
|
0cfs |
Mill C Nr Paxico
|
44cfs |
Kansas R At Wamego
|
1600cfs |
Rock C Nr Louisville
|
16cfs |
Big Blue R Nr Manhattan
|
396cfs |
Kansas R Nr Belvue
|
1440cfs |
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 25-66