Mud River Frs No 9 Reservoir Report
Last Updated: December 13, 2025
Mud River FRS No 9, also known as Shemwell Lake, is a flood risk reduction structure located in Todd County, Kentucky.
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Summary
Owned by the local government and regulated by the KY Division of Water, this earth dam was completed in 1961 with a height of 32 feet and a length of 450 feet. The reservoir has a storage capacity of 540 acre-feet and covers an area of 12.5 acres, serving the primary purpose of flood risk reduction along the Mud River.
With a low hazard potential and satisfactory condition assessment as of March 2017, Mud River FRS No 9 is considered to have a moderate risk level. The dam is inspected every five years to ensure its safety and functionality. Despite being uncontrolled, the spillway type of this structure helps manage excess water during periods of heavy rainfall. Located in the Nashville District, this dam plays a crucial role in protecting the surrounding area from potential flooding events, highlighting the importance of water resource management and climate resilience in the region.
Year Completed |
1961 |
Dam Length |
450 |
Dam Height |
32 |
River Or Stream |
MUD RIVER |
Primary Dam Type |
Earth |
Surface Area |
12.5 |
Drainage Area |
2.55 |
Nid Storage |
540 |
Hazard Potential |
Low |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pond River Near Apex
|
39cfs |
Green River At Paradise
|
1890cfs |
Red River At Port Royal
|
195cfs |
Little River Near Cadiz
|
485cfs |
West Fork Drakes Creek Near Franklin
|
24cfs |
Barren River At Bowling Green
|
317cfs |
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 Frs No 9