Mud River Mps No 6a Reservoir Report
Last Updated: December 6, 2025
Mud River Mps No 6a, also known as Spa Lake, is a vital flood risk reduction structure located in Logan, Kentucky.
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Summary
Owned by the local government, this earth dam was completed in 1973 by the Soil Conservation Service and is regulated by the KY Division of Water. With a height of 69 feet and a length of 970 feet, the dam has a storage capacity of 18,115 acre-feet and serves a drainage area of 16.5 square miles along the Mud River.
Despite being classified as having a significant hazard potential, the condition assessment of Mud River Mps No 6a is rated as fair. The dam's spillway type is uncontrolled with a width of 100 feet, and it is inspected every three years to ensure its structural integrity. With a moderate risk level, the dam presents a manageable challenge in terms of risk management. Located in a picturesque setting in Jerico, Kentucky, this dam plays a crucial role in protecting the surrounding area from flooding, highlighting the importance of sustainable water resource management and climate resilience efforts in the region.
Year Completed |
1973 |
Dam Length |
970 |
Dam Height |
69 |
River Or Stream |
MUD RIVER |
Primary Dam Type |
Earth |
Surface Area |
244 |
Drainage Area |
16.5 |
Nid Storage |
18115 |
Hazard Potential |
Significant |
Nid Height |
69 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pond River Near Apex
|
57cfs |
Green River At Paradise
|
2680cfs |
Red River At Port Royal
|
299cfs |
West Fork Drakes Creek Near Franklin
|
46cfs |
Barren River At Bowling Green
|
464cfs |
Drakes Creek Near Alvaton
|
224cfs |
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.
Mud River Mps No 6a