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Diverging Diamond Interchange

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

Description: MDX is making improvements to the most congested segment of SR 836, between NW 57th Avenue and NW 17th Avenue. One lane will be added in each direction to increase capacity and the interchanges will be improved to reduce congestion and backups onto local roads. The intersections at NW 57th Avenue and NW 27th Avenue will be completely reconstructed with an innovative traffic solution called Diverging Diamond Interchange or DDI for short to improve access to the surrounding areas for drivers entering and exiting the expressway. The left lane exits to Miami international Airport at NW 42nd Avenue will be eliminated and replaced with new right lane exits that will improve traffic flow. Lastly, MDX is reinforcing the inside shoulders of the expressway to allow Miami-Dade County express busses to drive on the shoulders when expressway speeds dip below 35 MPH.

Project Status: Several new ramps have opened since the spring and early summer including a new ramp from Miami International Airport to westbound SR 836 that provides faster direct access to the expressway. A new westbound exit to both northbound and southbound NW 57th Avenue opened, and the old loop ramp was permanently closed. This new ramp will be part of the Diverging Diamond Interchange or DDI for short on NW 57th Avenue. The DDI is a new interchange design that allows free-flowing access to and from the expressway. In the DDI, drivers briefly cross over to the left or opposite side of the road. The first of the two DDIs is scheduled to open this August at the intersection of SR 836 and NW 27th Avenue. The NW 57th Avenue DDI will open this fall. To see an animation of how to drive the DDI, click the Drive the DDI project video link below.

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