Whether you are looking for more information, or you'd like to let us know how we did, you'll find easy ways to contact us here:
Call Us (Non-Toll Related Inquiries)
Monday - Friday
8:00 a.m. to 5:00 p.m. EST
Write Us (Non-Toll Related Inquiries)
Miami-Dade Expressway Authority
3790 NW 21st Street
Miami, Florida 33142
Email Us (Non-Toll Related Inquiries)
MDX Customer Service Center (Toll Related Inquiries)
Walk-in hours: 8:00 AM - 5:00 PM, Mon - Fri.
Telephone (Toll-Free): 1-855-277-0848
Location: SR 924 - Gratigny Expressway
Directions: From the Douglas Road Extension (SR 953), turn west onto the Gratigny Expressway (SR 924). The Customer Service Center is immediately on your right and is accessible from the ramp marked "MDX Customer Service Center."
MDX is always looking towards innovative, reliable, cost-effective and safe solutions to the transportation needs of our community. We must work together in order to do this. Please do not hesitate to contact us with questions or comments.
Want to help move your community forward by working at MDX?