Johnson Dam Reservoir Report
Last Updated: December 5, 2025
Johnson Dam, located in Sims Chapel, Alabama, is a privately owned structure built in 1940 primarily for recreational purposes.
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Summary
The dam, with a height of 25 feet and a length of 695 feet, impounds Bates Creek-offstream and provides a storage capacity of 210 acre-feet. Despite its low hazard potential and not being federally regulated or inspected, Johnson Dam serves as a vital resource for water activities in the area.
While the dam's condition is currently not rated, its emergency action plan status and risk assessment information remain unknown. With a hydraulic height of 25 feet and a maximum storage capacity of 210 acre-feet, Johnson Dam offers a serene retreat for water resource and climate enthusiasts seeking a recreational escape in the heart of Washington County, Alabama. Although lacking federal oversight, the dam remains a picturesque spot for outdoor activities and leisure.
Year Completed |
1940 |
Dam Length |
695 |
River Or Stream |
BATES CREEK-OFFSTREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
210 |
Structural Height |
25 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Johnson Dam
Begins Approximately 2 River Miles Downstream From The Yellowhouse Branch Confluence With The Escatawpa River Near The Town Of Deer Park, Alabama
To Ends Approximately 1 River Mile Upstream From The U.S. Highway 98 Bridge