S-27 Reservoir Report

Nearby: S-28 G-58

Last Updated: December 5, 2025

S-27, located in Miami-Dade, Florida, is a state-regulated flood risk reduction structure on the Little River Canal (C-7).


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Summary

Completed in 1958, this dam stands at a height of 20 feet and has a storage capacity of 1,400 acre-feet. With a low hazard potential and a condition assessment of "Not Rated," S-27 plays a crucial role in managing water resources in the area.

Despite its age, S-27 continues to fulfill its primary purpose of flood risk reduction effectively. The dam has not been modified in recent years and is currently in a satisfactory condition as per the last inspection in 1905. With state permitting, inspection, and enforcement in place, the structure is well-maintained and monitored to ensure its safety and functionality.

As water resource and climate enthusiasts, it is important to recognize the significance of structures like S-27 in mitigating flood risks and managing water flow in urban areas. The data for S-27 highlights its vital role in safeguarding the surrounding communities from potential flooding events, showcasing the importance of sustainable water resource management practices in the face of changing climate patterns.

Year Completed

1958

Dam Length

106

Dam Height

20

River Or Stream

LITTLE RIVER CANAL (C-7)

Primary Dam Type

Other

Surface Area

70

Hydraulic Height

20

Nid Storage

1400

Structural Height

16

Hazard Potential

Low

Nid Height

20
       
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.