Structure 68 Reservoir Report

Last Updated: December 5, 2025

Structure 68, located in Highlands County, Florida, is a state-regulated dam on Canal C-41 with a primary purpose of flood risk reduction.


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Summary

This earth dam stands at 13 feet tall, with a hydraulic height of 9 feet and a dam height of 11 feet. It has a storage capacity of 2200 acre-feet and covers a surface area of 216 acres. Despite its significant hazard potential, the dam is currently in satisfactory condition, as assessed in September 2014.

Owned by the State of Florida, Structure 68 serves not only flood risk reduction but also irrigation purposes. Its uncontrolled outlet gates allow for water flow management, contributing to the overall water resource management in the region. With its location in Lake Placid and association with the Jacksonville District of the US Army Corps of Engineers, Structure 68 plays a crucial role in mitigating flood risks and ensuring water security for the surrounding communities.

Although last inspected in September 2014, Structure 68 remains an essential infrastructure for water resource and climate enthusiasts to monitor. Its role in flood risk reduction and irrigation, coupled with its state-regulated status and satisfactory condition, highlight the importance of ongoing maintenance and inspection to safeguard both the dam's integrity and the communities it serves. As water resource management and climate adaptation become increasingly vital, structures like Structure 68 play a crucial role in ensuring the resilience of water systems in the face of changing environmental conditions.

Dam Height

11

River Or Stream

CANAL C-41

Primary Dam Type

Earth

Surface Area

216

Hydraulic Height

9

Nid Storage

2200

Structural Height

13

Outlet Gates

Uncontrolled

Hazard Potential

Significant

Nid Height

13
       
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.