COMPLETED PROJECTS

GMX is committed to fulfilling its mission of reinvesting your toll dollars in the expressway system. GMX has reinvested more than $1.5 billion in capacity, technology and safety improvements on all five expressways including:

Wrong Way Safety Project

The Wrong-Way Safety project is part of GMX's effort to continue to improve motorists' safety by reducing the number of wrong-way incidents. The project began in June 2022 and is expected to be completed by Fall 2023. It involves the installation of a wrong-way detection system, associated pavement markings and signs at twenty-six (26) ramp locations on SR-112, SR-836, SR-874, SR-878, and SR-924; adding to the eight (8) already installed wrong-way detection systems. With this project, a vehicle entering any of the twenty-six (26) ramp locations in the wrong direction will be detected by the system, which would automatically activate flashing wrong-way signs to alert the wrong-way driver. Simultaneously, the system would send a notification to the GMX operators at the Traffic Management Center who could alert other drivers and law enforcement. The signs and pavement marking enhancements included as part of this project would also help alert wrong-way drivers before getting further into the expressways.

SR 874 Ramp Connector to SW 128 Street

Construction is complete on the access ramp connection from the southern terminus of SR 874/Don Shula Expressway to SW 128th Street, including widening of SW 128th Street from two to four lanes, from SW 122nd Avenue to SW 137th Avenue. The SR 874 Expressway Ramp Connector provides alternative expressway access to the area, reducing congestion on SW 120th Street and SW 152nd Street by providing additional connectivity and mobility to the rapidly growing area of West Kendall and Southwest Miami-Dade County.

SR 836 Modernization from NW 57th Avenue to NW 17th Avenue

Construction of the improvements to the most congested segment of SR 836 from NW 57th Avenue to NW 27th Avenue was completed in 2020. The improvements include an additional lane in each direction, increasing capacity, and the reconstruction of the interchanges at NW 27th Avenue, NW 37th Avenue, NW 42nd Avenue, NW 45th Avenue and NW 57th Avenue. This reconstruction reduces congestion, and backups onto local roads. In an effort to seek, new and innovative traffic, management solutions a Diverging Diamond Interchange (DDI) was designed for the area at SR 836 and NW 57th and 27th Avenues. This significantly improves traffic efficiency and safety in the entrance and exits of the expressway. Perhaps the most important component of this project was the new right hand ramps that provide direct access to Miami International Airport and NW 42nd Avenue. In an effort to use our expressway for other modes of transportation, special red striped lanes on the reinforced inner shoulders provide exclusive access to Miami-Dade County’s Express Bus Service Dolphin Station Park and Ride to downtown.

SR 836 Interchange Improvements at 87th Avenue

Construction of the SR 836/Dolphin Expressway Interchange Improvements at NW 87th Avenue in the Doral/Fontainebleau area was completed in 2020. The project completes system-to-system connections between SR 836 and the Palmetto Expressway and provides increased capacity to meet future traffic needs along SR 836. The main purpose of the project is to improve traffic operations and safety of the SR 836 and NW 87th Avenue Interchange by reconstructing the entrance and exit ramps and widening NW 12th Street between NW 87th and NW 82nd Avenues. A significant improvement is the addition of a new flyover entrance ramp that provides a direct connection from westbound NW 12th Street to westbound SR 836. The new entrance ramp substantially reduces congestion at the intersection of NW 87th Avenue and NW 12th Street. The project also included the construction of sound barriers, signing and pavement markings, lighting, drainage, utility coordination, Intelligent Transportation System (ITS) infrastructure and landscaping. The project also extended the Kitty Roedel Bike Path provided on the SR 836 right of way.