Greenleaf - Choccolocco Site 2 Reservoir Report

Last Updated: December 5, 2025

Greenleaf - Choccolocco Site 2 is a Federal-owned dam located in Calhoun, Alabama, along the Choccolocco Creek.


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Summary

Built in 1969 by the USDA NRCS, this Earth dam stands at 66 feet in height and serves the primary purpose of flood risk reduction. With a storage capacity of 7,215 acre-feet and a drainage area of 21 square miles, this dam plays a crucial role in mitigating flood hazards in the region.

Despite its high hazard potential and very high risk assessment, Greenleaf - Choccolocco Site 2 has not been rated for its condition assessment. The dam features a controlled spillway with a width of 9 feet and vertical lift outlet gates. Managed by the Forest Service and inspected by the Natural Resources Conservation Service, this dam is key to protecting the surrounding area from potential flooding events. While there are no associated structures with this dam, its strategic location and design make it a vital asset for water resource and climate enthusiasts in the region.

Year Completed

1969

Dam Length

535

Dam Height

66

River Or Stream

CHOCCOLOCCO CREEK

Primary Dam Type

Earth

Hydraulic Height

17

Drainage Area

21

Nid Storage

7215

Outlet Gates

Vertical Lift

Hazard Potential

High

Nid Height

66
       
Seasonal Comparison

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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.