P M Johnston Dam Number Two Reservoir Report
Last Updated: December 6, 2025
P M Johnston Dam Number Two, located in Hickory, Alabama, was completed in 1977 and serves primarily for recreational purposes.
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Summary
This earth dam, standing at 15 feet in structural height with a hydraulic height of 13 feet, spans 600 feet and has a storage capacity of 130 acre-feet. Situated on TR-SENECA CREEK, this dam is managed by a private owner and falls under the jurisdiction of the state, with no federal involvement in its operations or regulation.
Despite its low hazard potential and not being state-regulated or permitted, P M Johnston Dam Number Two provides a valuable resource for the local community, offering opportunities for water-based activities and outdoor recreation. With a maximum discharge capacity of 750 cubic feet per second, this dam contributes to the conservation of water resources in Pickens County, Alabama. Although its condition assessment is currently not rated, the dam continues to play a significant role in enhancing the quality of life for residents and visitors alike in the region.
Year Completed |
1977 |
Dam Length |
600 |
River Or Stream |
TR-SENECA CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
13 |
Nid Storage |
130 |
Structural Height |
15 |
Hazard Potential |
Low |
Nid Height |
15 |
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.
P M Johnston Dam Number Two