S-41 Reservoir Report

Nearby: S-40 S-155

Last Updated: December 5, 2025

S-41, also known as the C-16 (Boynton Canal) structure, is a significant flood risk reduction dam located in Palm Beach, Florida.


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Summary

Completed in 1965, this state-regulated dam plays a crucial role in protecting the surrounding area from flooding by controlling the flow of water from the canal. With a height of 26 feet and a length of 149 feet, S-41 has a storage capacity of 50,000 acre-feet and a normal storage of 30,000 acre-feet.

Managed by the state of Florida, S-41 has a hazard potential rated as significant and is currently in a not-rated condition assessment status. The dam features uncontrolled outlet gates and a spillway type that is not specified. Despite its important role in flood control, the dam has not been regularly inspected, with the last inspection date recorded as July 7, 1905. Furthermore, there is no information available on emergency action plans, risk assessment, or risk management measures for S-41, highlighting potential areas for improvement in the dam's maintenance and safety protocols.

For water resource and climate enthusiasts, S-41 presents an intriguing case study in the management of flood risk and the importance of regular dam inspections and maintenance. As a key structure in the control of water flow in the Boynton Canal, S-41's condition and safety measures warrant closer monitoring and assessment to ensure the continued protection of the surrounding area from potential flooding events. With its significant hazard potential and historical lack of inspections, S-41 serves as a reminder of the ongoing challenges and responsibilities in safeguarding water resources and infrastructure in the face of changing climate conditions.

Year Completed

1965

Dam Length

149

Dam Height

26

River Or Stream

C-16 (BOYNTON CANAL)

Primary Dam Type

Other

Surface Area

1923

Hydraulic Height

26

Nid Storage

50000

Structural Height

19

Outlet Gates

Uncontrolled

Hazard Potential

Significant

Nid Height

26
       
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.