S-30 Reservoir Report

Nearby: G-86s G-72

Last Updated: December 5, 2025

S-30, located in Miami-Dade, Florida, along the Snake Creek Canal (C-9), is a state-regulated dam with a primary purpose of flood risk reduction.


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Summary

Built in 1960, this dam stands at a height of 14 feet and has a storage capacity of 292 acre-feet. With a significant hazard potential, S-30 plays a crucial role in managing water levels and preventing flooding in the surrounding area.

Despite its age, S-30 has not been assessed for its condition and does not have an Emergency Action Plan (EAP) in place. The last inspection date recorded was in 1905, highlighting the need for updated assessments and emergency preparedness measures. With a dam length of 60 feet and a surface area of 21 acres, S-30 provides vital flood protection for the residents of Miramar and the surrounding areas.

As water resource and climate enthusiasts, it is important to monitor the condition of dams like S-30 to ensure their continued efficacy in mitigating flood risks. By prioritizing assessments, emergency planning, and risk management measures, we can safeguard communities and the environment from the impacts of extreme weather events and changing climate patterns.

Year Completed

1960

Dam Length

60

Dam Height

14

River Or Stream

SNAKE CREEK CANAL (C-9)

Primary Dam Type

Other

Surface Area

21

Hydraulic Height

14

Nid Storage

292

Structural Height

8

Hazard Potential

Significant

Nid Height

14
       
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.