Gibsonton (W) Reservoir Report

Last Updated: December 26, 2025

Gibsonton (W) is a privately owned dam located in Hillsborough, Florida, along Archie Creek.


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Summary

Built in 1989 by ARDAMAN & ASSOCIATES, this earth dam stands at 25 feet tall with a hydraulic height of 20 feet. With a storage capacity of 560 acre-feet and a surface area of 34 acres, the dam serves primarily for tailings purposes. Despite being regulated by the Florida Department of Environmental Protection (FDEP) and undergoing regular inspections, the dam's hazard potential is classified as significant, indicating a high level of risk.

The dam has a drainage area of 0.05 square miles and a maximum discharge of 110 cubic feet per second. Its spillway type is listed as "None," with a spillway width of 64 feet. Although the condition assessment is currently listed as "Not Rated," the risk assessment for Gibsonton (W) is considered high (2). With its location in a region vulnerable to climate change impacts, water resource and climate enthusiasts may find interest in monitoring the risk management measures and emergency preparedness plans associated with this dam to ensure the safety of the surrounding community and ecosystem.

Despite its relatively small size, Gibsonton (W) plays a crucial role in water management in the area and highlights the importance of maintaining infrastructure resilience in the face of changing environmental conditions. As stakeholders strive to mitigate risks and safeguard against potential hazards, continued monitoring and assessment of this dam will be essential in ensuring its long-term sustainability and safety.

Year Completed

1989

Dam Length

6864

Dam Height

25

River Or Stream

ARCHIE CREEK

Primary Dam Type

Earth

Surface Area

34

Hydraulic Height

20

Drainage Area

0.05

Nid Storage

560

Structural Height

30

Hazard Potential

Significant

Foundations

Soil

Nid Height

30
       
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.