Miami Marathon Road Closures: What You Need to Know (2026)

Get ready for a thrilling weekend in Miami, but brace yourself for some major traffic disruptions! The upcoming Miami Marathon is set to shake things up, and we're not just talking about the runners' adrenaline rush. From road closures to counterflow patterns, the city is about to undergo a dramatic transformation ahead of the big race on Sunday.

But here's where it gets controversial: while the marathon promises an exciting spectacle, it also means navigating a maze of detours and temporary road rules. And this is the part most people miss - the impact of these changes starts as early as Friday!

Let's dive into the details. On Friday morning, at 10 a.m., Biscayne Boulevard between Southeast Second Street and Northeast Second Street will undergo a counterflow transformation, with northbound lanes closing. Traffic entering from Chopin Plaza will be redirected to the southbound lanes, and then back to normal at Northeast Second Street. Southbound traffic on Biscayne Boulevard will remain open.

As the weekend progresses, the closures and counterflows intensify. On Saturday night at 9 p.m., all northbound traffic entering Biscayne Boulevard at Chopin Plaza will be rerouted westbound on Southeast Second Street. Southbound traffic will take a detour at Northeast First Street, and Biscayne Boulevard will be closed to vehicles between Southeast First Street and Northeast First Street.

At 10 p.m. on Saturday, things get even more interesting. Biscayne Boulevard between Northeast Sixth Street and Northeast Ninth Street will close, and northbound traffic at Northeast Sixth Street will be redirected westbound. Meanwhile, Port Boulevard will remain open eastbound and westbound, providing an alternative route.

Sunday morning brings further closures. At 2 a.m., Biscayne Boulevard between Northeast Sixth Street and Northeast 13th Street will shut down. Southbound traffic at Northeast 13th Street will be rerouted, and all northbound traffic on Biscayne Boulevard and traffic from the Port of Miami will take a different path. These citywide road closures are expected to last until around 2 p.m., with the exception of the Biscayne Boulevard counterflow, which is anticipated to reopen around 5 p.m.

Officials are urging motorists to plan their routes carefully and consider alternative paths. Miami police officers and agency personnel will be on hand to assist drivers at closure points.

So, are you ready to navigate this marathon-induced traffic maze? What do you think about the impact of these closures on the city's residents and visitors? Feel free to share your thoughts and experiences in the comments below!

Miami Marathon Road Closures: What You Need to Know (2026)
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