Jb Allen Dam Reservoir Report

Last Updated: December 5, 2025

Jb Allen Dam, also known as Allen Lake, is a privately owned structure located in Clark County, Kentucky.


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Summary

Completed in 1970, the earth dam stands at 31 feet high and spans 300 feet in length, creating a reservoir with a storage capacity of 32.4 acre-feet. The dam is regulated by the Kentucky Division of Water and is inspected every 5 years, with a low hazard potential rating.

Situated on TR-Boone Creek in the city of Clays Ferry, Jb Allen Dam serves a primary purpose of "Other" and is classified as an earth dam type with an uncontrolled spillway. The dam's risk assessment indicates a moderate risk level (3) and its condition has not been rated. Despite its modest surface area of 3 acres, the dam plays a crucial role in managing water resources in the region and contributes to the overall climate resilience of the area.

With its historical significance dating back over 50 years, Jb Allen Dam continues to be a vital infrastructure for the community, providing water storage and flood control benefits. While the dam's condition assessment remains unknown, its operational efficiency and adherence to state regulations demonstrate a commitment to safety and environmental protection. As water resource and climate enthusiasts, the data on Jb Allen Dam underscores the importance of maintaining and monitoring critical infrastructure to ensure the sustainable management of water resources in Kentucky.

Year Completed

1970

Dam Length

300

Dam Height

31

River Or Stream

TR-BOONE CREEK

Primary Dam Type

Earth

Surface Area

3

Drainage Area

0.27

Nid Storage

32.4

Hazard Potential

Low

Nid Height

31
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.