S-50 Reservoir Report
Nearby: Control Strct #1 Control Struc #2
Last Updated: December 15, 2025
Located in Fort Pierce, Florida, S-50 is a state-regulated Earth dam built in 1961 for flood risk reduction along the Belcher Canal (C-25).
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Summary
Standing at 42 feet tall with a length of 231 feet, this dam has a maximum storage capacity of 1235 acre-feet and serves a drainage area of 0 square miles. The dam's spillway type is uncontrolled, with a maximum discharge of 4040 cubic feet per second, making it a significant hazard potential structure.
Although S-50 has not been rated for its current condition, it is considered to have a moderate risk level. The dam's emergency action plan status, risk assessment, and risk management measures remain unspecified. With a primary purpose of flood risk reduction, S-50 plays a crucial role in water resource management in St. Lucie, Florida. Enthusiasts of water resources and climate change will find S-50 to be a key structure in the region's flood control infrastructure.
Year Completed |
1961 |
Dam Length |
231 |
Dam Height |
42 |
River Or Stream |
BELCHER CANAL (C-25) |
Primary Dam Type |
Earth |
Surface Area |
29 |
Hydraulic Height |
42 |
Nid Storage |
1235 |
Structural Height |
24 |
Outlet Gates |
Tainter (radial) |
Hazard Potential |
Significant |
Nid Height |
42 |
Seasonal Comparison
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Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
S-50
North Causeway Island Park