Miami Marathon 2026: Road Closures, Traffic Changes, and What You Need to Know! (2026)

Get ready, Miami, for a major traffic shake-up! The upcoming Miami Marathon is set to cause significant disruptions on the roads, and you'll want to plan ahead to avoid frustration. But here's the catch: it's not just a one-day affair.

The marathon's impact will be felt as early as Friday, with road closures and traffic pattern changes that will affect your weekend plans. So, what's the game plan? Let's dive in.

Biscayne Boulevard will be at the center of the action, with counterflow operations and closures from Southeast Second Street to Northeast Second Street starting at 10 a.m. on Friday. This means the northbound lanes will be closed, and traffic entering from Chopin Plaza will be rerouted to the southbound lanes, only returning to normal at Northeast Second Street.

And this is where it gets tricky: on Saturday, at 9 p.m., all northbound traffic at Chopin Plaza will take a detour westbound on Southeast Second Street. Southbound drivers, take note! You'll be detoured at Northeast First Street and can continue south via Southeast Second Avenue. Say goodbye to your usual route for a while.

The marathon's influence doesn't stop there. On Saturday, at 10 p.m., the closure zone expands to Biscayne Boulevard between Northeast Sixth Street and Northeast Ninth Street. Northbound traffic will be rerouted, but southbound drivers, you're in luck—your route remains open.

As the clock strikes 2 a.m. on Sunday, the marathon's impact intensifies. Biscayne Boulevard between Northeast Sixth Street and Northeast 13th Street will be closed, with southbound traffic rerouted and all northbound traffic, including vehicles from the Port of Miami, redirected westbound.

The big day arrives: Sunday at 5 a.m., citywide road closures kick in, expected to last until 2 p.m. But wait, there's more! The Biscayne Boulevard counterflow will keep traffic flowing in one direction until 5 p.m., adding to the complexity.

Officials are urging drivers to stay informed and consider alternative routes. Miami police and external agency staff will be on hand to guide drivers through the maze of closures.

So, Miami residents and visitors, are you ready for this marathon-sized challenge? How do you feel about these temporary changes? Share your thoughts below, and let's discuss the best strategies to navigate this exciting yet disruptive event!

Miami Marathon 2026: Road Closures, Traffic Changes, and What You Need to Know! (2026)

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