Dover Dam Reservoir Report

Last Updated: December 5, 2025

Dover Dam, located in Gadsden, Florida, was completed in 1965 and is owned by a private entity.


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Summary

The dam, designed by USDA NRCS, serves the primary purpose of flood risk reduction along the Holley Branch river. With a dam height of 15 feet and a length of 800 feet, it has a storage capacity of 69 acre-feet and a drainage area of 0.25 square miles.

The dam features an uncontrolled spillway with a width of 240 feet and is classified as an earth dam with a stone core foundation. While the hazard potential is considered significant, the condition assessment is currently not rated. The risk assessment for Dover Dam is moderate (3), indicating the need for ongoing monitoring and management measures to ensure its safety and effectiveness in flood risk reduction. Overall, Dover Dam plays a crucial role in protecting the surrounding community from potential flooding events along the Holley Branch river.

Year Completed

1965

Dam Length

800

Dam Height

15

River Or Stream

HOLLEY BRANCH

Primary Dam Type

Earth

Surface Area

5

Drainage Area

0.25

Nid Storage

69

Outlet Gates

Uncontrolled

Hazard Potential

Significant

Foundations

Soil

Nid Height

15
       
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.