Greater Miami Expressway Agency

Greater Miami Expressway Agency
Current logo of GMX
Agency overview
Formed1994
JurisdictionMiami-Dade County, Florida
HeadquartersMiami, Florida
Websitehttps://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]

  1. ^ Garvin, Glenn (July 25, 2014). "Miami-Dade's 836, 112 expressways to close at night to install toll equipment". Miami Herald. Retrieved August 20, 2014.