Structure 353 Reservoir Report

Last Updated: December 5, 2025

Structure 353, also known as Robinson, is a concrete dam located in Citrus County, Florida, specifically in the city of Stokes Ferry.


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Summary

This dam, completed in 1962, serves the primary purpose of flood risk reduction along Canal 331. With a height of 12.5 feet and a length of 61 feet, Structure 353 has a significant hazard potential and is under state regulation, inspection, and enforcement by the Southwest Florida Water Management District (SWFWMD).

The dam has a storage capacity of 60,000 acre-feet and a normal storage of 57,750 acre-feet, covering a surface area of 5,500 acres. It has a spillway width of 60 feet and an uncontrolled outlet gate system. While the dam's condition assessment is currently not rated, it is crucial for preventing flooding in the surrounding areas and managing water resources effectively. The last inspection date of Structure 353 was in February 1999, highlighting the importance of regular monitoring and maintenance to ensure its continued functionality and safety for the community.

As a vital infrastructure for flood risk reduction in Florida, Structure 353 plays a key role in water resource management and climate resilience efforts in the region. With its significant hazard potential and state-regulated status, the dam serves as a critical piece of infrastructure in protecting the surrounding areas from potential flooding events. Continued monitoring, inspection, and maintenance of Structure 353 are essential to safeguarding the community and ensuring the efficient management of water resources in Citrus County.

Year Completed

1962

Dam Length

61

Dam Height

12.5

River Or Stream

CANAL 331

Primary Dam Type

Concrete

Surface Area

5500

Hydraulic Height

10.5

Nid Storage

60000

Structural Height

17.5

Outlet Gates

Uncontrolled

Hazard Potential

Significant

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.