HNTB reconstructed and completed tollway improvements for a 2-mile section of State Route 836, the major east-west connector in Miami-Dade County, Florida. The project included two administration buildings, two toll plazas, two gantries for electronic toll collection and the existing expressway facility’s total reconstruction. These improvements are the initial steps to implementing open road tolling on the entire Miami-Dade Expressway Authority system. The design-build project was completed on an expedited two-year timeline.

HNTB currently serves as the general engineering consultant to MDX, which oversees, operates and maintains five expressways in Miami-Dade County.

Location: Miami-Dade County, FL

Client: Miami Dade Expressway Authority