Dd No 103 Reservoir Report
Nearby: Dd No 2 Site No. 129
Last Updated: December 5, 2025
Located in Lyon County, Kansas, Dd No 103 is a local government-owned earth dam designed by USDA NRCS for flood risk reduction along the Allen Creek-TR river.
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Summary
With a height of 22.7 feet and a length of 1050 feet, this dam serves a critical role in protecting the surrounding area from potential flooding events. The dam has a storage capacity of 257 acre-feet and a normal storage of 29 acre-feet, covering a surface area of 8.8 acres.
Despite its low hazard potential, Dd No 103 is regulated by the Kansas Department of Agriculture and undergoes regular state inspections and enforcement measures to ensure its structural integrity. The dam features an uncontrolled spillway with a width of 56 feet, and currently has no outlet gates or associated structures. The risk assessment for this dam is considered moderate, with a DSAC assigned date yet to be determined, highlighting the importance of ongoing monitoring and maintenance to mitigate any potential risks.
Overall, Dd No 103 plays a crucial role in managing flood risk in the Emporia Neosho Rapids area, demonstrating the collaborative efforts of state and federal agencies in safeguarding water resources and infrastructure. With its primary purpose focused on flood risk reduction, this dam serves as a vital component of the local watershed management strategy, showcasing the importance of proactive measures in climate resilience and water resource management.
Dam Length |
1050 |
Dam Height |
22.7 |
River Or Stream |
ALLEN CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
8.8 |
Drainage Area |
0.58 |
Nid Storage |
257 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Neosho R Nr Americus
|
75cfs |
Cottonwood R Nr Plymouth
|
898cfs |
Marais Des Cygnes R Nr Reading
|
10cfs |
Neosho R At Council Grove
|
4cfs |
Dragoon C Nr Burlingame
|
7cfs |
Marais Des Cygnes R At Melvern
|
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 103