E.T. Harrison Reservoir Report

Last Updated: December 5, 2025

E.T.


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Summary

Harrison is a private fish and wildlife pond located in Wilcox, Alabama, along Shell Creek. Built in 1985 by the USDA NRCS, this Earth-type dam stands at a height of 17.5 feet and has a storage capacity of 87 acre-feet. With a moderate risk assessment rating of 3, this low hazard potential structure serves as a vital source for maintaining the local ecosystem and providing a habitat for various wildlife species.

Despite not being state-regulated or inspected, E.T. Harrison plays a crucial role in water resource management in the region. Its uncontrolled spillway, with a width of 50 feet, ensures proper drainage during high water levels. Additionally, the dam's 535 feet length and 12-acre surface area demonstrate its significant impact on the surrounding environment.

With its prime purpose being a fish and wildlife pond, E.T. Harrison stands as a testament to the importance of sustainable water resource practices. The collaboration between private ownership and government agencies like the USDA NRCS showcases the potential for effective conservation efforts in enhancing biodiversity and preserving natural habitats in Alabama's waterways.

Year Completed

1985

Dam Length

535

Dam Height

17.5

River Or Stream

SHELL CREEK

Primary Dam Type

Earth

Surface Area

12

Drainage Area

0.11

Nid Storage

87

Hazard Potential

Low

Nid Height

18
       
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.