Agency overview | |
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Formed | 1994 |
Jurisdiction | Miami-Dade County, Florida |
Headquarters | Miami, Florida |
Website | https://www.gmx-way.com/ |
The Greater Miami Expressway Agency (GMX) (formerly the Miami-Dade Expressway Authority, MDX) is an independent agency governed by the state of Florida. Since 1997, GMX has operated and maintained five expressways that run within the county.
All five expressways are all electronic toll roads, requiring the use of SunPass or a "toll-by-plate" program and does not accept cash, and the free movement sections were removed. The Gratigny Parkway, Don Shula and Snapper Creek Expressways became all electronic in 2010, while the Airport and Dolphin Expressways were converted in 2014.[1]