J. Williams 1a Reservoir Report

Last Updated: December 5, 2025

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Summary

Williams 1a is a private-owned Earth dam located in Dallas County, Alabama, specifically in the city of Orrville. Built in 1989 by the USDA NRCS, this dam serves primarily as a Fish and Wildlife Pond to support the local ecosystem. With a dam height of 9 feet and a length of 1000 feet, J. Williams 1a has a storage capacity of 87 acre-feet and covers a surface area of 13 acres. The dam is situated on TR-BEAR CANE CK., which is a tributary of the local river or stream.

Despite being classified as having a low hazard potential, J. Williams 1a is subject to moderate risk as assessed by its condition and management measures. The dam features an uncontrolled spillway with a width of 25 feet and a maximum discharge of 200 cfs. The last inspection of the dam took place in December 1989, and it has not been rated for its condition since then. While the dam has not been modified over the years, it is important to ensure regular inspections and maintenance to address any potential risks and safeguard the surrounding environment and community.

In the larger context of water resource and climate management, J. Williams 1a is a crucial infrastructure contributing to the conservation and enhancement of local fish and wildlife populations. As climate change continues to impact water resources, it is essential to monitor and maintain dams like J. Williams 1a to ensure their functionality and safety. By implementing appropriate risk management measures and conducting regular inspections, we can mitigate potential hazards and preserve the ecological balance supported by this essential water structure.

Year Completed

1989

Dam Length

1000

Dam Height

9

River Or Stream

TR-BEAR CANE CK.

Primary Dam Type

Earth

Surface Area

13

Drainage Area

0.11

Nid Storage

87

Hazard Potential

Low

Nid Height

9
       
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.