Pratt Turner Reservoir Report

Last Updated: December 5, 2025

Pratt Turner, a privately owned dam located in Mobile, Alabama, was completed in 1969 and stands at a height of 26 feet with a hydraulic height of 22 feet.


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Summary

The dam spans 500 feet and has a storage capacity of 75 acre-feet, with a normal storage level of 62 acre-feet. The dam is situated on TR-Bull Branch Creek and is under the jurisdiction of the Mobile District of the US Army Corps of Engineers. Despite its age, Pratt Turner is considered to have low hazard potential and is currently rated as "Not Rated" in terms of condition assessment.

This earth dam plays a crucial role in water resource management in the area, with a maximum discharge capacity of 1300 cubic feet per second. While the dam does not have a spillway, it serves various purposes beyond flood control, as indicated by its primary purpose being categorized as "Other." The dam is not regulated by the state and has not been subject to regular inspections, with the last inspection date unknown. Despite this, Pratt Turner remains a vital infrastructure for the community of Pineola and surrounding areas, providing essential water storage and management capabilities.

With its unique design and significance in the local water resource infrastructure, Pratt Turner stands as a testament to the engineering achievements of its time. While its condition assessment may be unknown, the dam continues to serve its purpose effectively, ensuring water availability and flood protection for the region. For water resource and climate enthusiasts, Pratt Turner offers a fascinating case study in dam construction and management within the dynamic environment of Mobile, Alabama.

Year Completed

1969

Dam Length

500

River Or Stream

TR-BULL BRANCH CREEK

Primary Dam Type

Earth

Hydraulic Height

22

Nid Storage

75

Structural Height

26

Hazard Potential

Low

Nid Height

26
       
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.