Dd No 117 Reservoir Report
Nearby: Diamond Creek Ws Dam 115 Dd No 115
Last Updated: December 5, 2025
Dd No 117, located in Cottonwood Falls, Kansas, is a local government-owned Earth dam completed in 1994 for flood risk reduction purposes on Diamond Creek-TR.
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Summary
This structure stands at 26 feet tall and spans a length of 550 feet, with a storage capacity of 148.49 acre-feet and a normal storage of 15.64 acre-feet. Despite its low hazard potential, the dam has not been rated for its condition and has not undergone recent inspections since February 1995.
The dam features an uncontrolled spillway with a width of 40 feet and no outlet gates. It is associated with no other structures and has not been modified in recent years. The risk assessment for Dd No 117 indicates a moderate risk level (3), highlighting the importance of continued monitoring and maintenance to ensure its effectiveness in mitigating flood risks in the area. Water resource and climate enthusiasts may find interest in the unique design and purpose of this structure within the local watershed.
Year Completed |
1994 |
Dam Length |
550 |
Dam Height |
26 |
River Or Stream |
DIAMOND CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
3.42 |
Drainage Area |
0.55 |
Nid Storage |
148.49 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Neosho R At Council Grove
|
4cfs |
Cottonwood R Nr Florence
|
215cfs |
N Cottonwood R Bl Marion Lk
|
1cfs |
Cedar C Nr Cedar Point
|
61cfs |
Cottonwood R Nr Plymouth
|
898cfs |
Neosho R Nr Americus
|
75cfs |
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 117