G-54 Reservoir Report

Nearby: S-33 S-36

Last Updated: December 5, 2025

G-54, also known as the North New River Canal Dam, is a concrete multi-arch dam located in Broward County, Florida.


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Summary

Built in 1917 by the South Florida Water Management District (SFWMD), G-54 serves as a crucial flood risk reduction structure on the NORTH NEW RIVER CANAL. With a height of 37 feet and a length of 157 feet, the dam has a storage capacity of 2077 acre-feet and plays a significant role in managing water levels in the area.

The dam is regulated by the Florida Department of Environmental Protection (FDEP) and undergoes regular state inspections, permitting, and enforcement to ensure its safety and effectiveness in flood control. With a hazard potential rated as significant and a very high risk assessment, G-54 is considered a critical piece of infrastructure in protecting the surrounding communities from potential flooding events. Despite its age, the dam's condition is currently not rated, highlighting the need for ongoing maintenance and monitoring to address any potential risks.

G-54 stands as a testament to the long history of water resource management in Florida and the importance of infrastructure in mitigating the impacts of climate change. As a key flood risk reduction structure in the region, G-54 plays a vital role in safeguarding the community from the threats of high water levels and ensuring the resilience of the surrounding area in the face of changing climate patterns.

Year Completed

1917

Dam Length

157

Dam Height

35

River Or Stream

NORTH NEW RIVER CANAL

Primary Dam Type

Concrete

Surface Area

200

Hydraulic Height

20

Drainage Area

80

Nid Storage

2077

Structural Height

37

Hazard Potential

Significant

Foundations

Rock, Soil

Nid Height

37
       
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.