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About MDX

Our relationship with the automobile has a distinct purpose; we drive to work, we drive to the store, we drive to visit with friends and family. No matter our destination, the focus is getting to where we need to go - safely and without delay.

MDX is the driving force behind saving our customers valuable time on the road. We help keep approximately 1 million cars moving as safely and efficiently as possible each day.

MDX was created by the State of Florida and the Board of County Commissioners of Miami-Dade County to serve as an innovative transportation agency dedicated to the enhancement of mobility in Miami-Dade County. Read our Vision Statement.

MDX is funded almost entirely by toll revenue. We receive no state or federal funds; no sales tax, gas tax, property tax or half-penny sales tax. Tolls collected are reinvested for the planning, design, construction, operation and maintenance of five of the most critical roadways in Miami-Dade County:

  • State Road 112/Airport Expressway
  • State Road 836/Dolphin Expressway
  • State Road 874/Don Shula Expressway
  • State Road 878/Snapper Creek Expressway
  • State Road 924/Gratigny Parkway

MDX's 2008-2012 Strategic Plan

Focuses on four main objectives: Leadership, Relationships with Stakeholders, Operational Excellence and Stewardship of Resources. MDX is committed to using the resources available - user fees and the five roadways we manage - and working with our partners to find solutions that address congestion and provide mobility. We pledge to work together with the community to develop initiatives that will benefit Miami-Dade for generations to come.

Five-Year Work Program

Developed to manage the program of system improvements, enhancements and rehabilitation, it identifies projects that MDX anticipates funding during the next five years, from project inception through construction. The Five-Year Work Program is an evolving document that reflects and prioritizes the needs of the community. Changes are made on an annual basis, as priorities are reevaluated, projects are completed, new projects are identified, and financial realities are defined.