MacArthur Causeway Westbound Lanes Shut Down After Crash

Authorities divert traffic to Biscayne Boulevard exit due to incident at Biscayne Blvd

Published on Mar. 2, 2026

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All westbound lanes on the MacArthur Causeway in Miami were shut down Monday morning due to a crash at the Biscayne Boulevard intersection, according to the Florida Department of Transportation. Drivers are being diverted to the Biscayne Boulevard exit to continue west on NE 13 Street and access the I-395 ramp at North Miami Avenue.

Why it matters

The MacArthur Causeway is a major thoroughfare connecting downtown Miami to Miami Beach, so any closures can cause significant traffic disruptions in the area. Authorities are urging drivers to seek alternate routes like the Julia Tuttle Causeway to avoid delays.

The details

The crash occurred at the intersection of the MacArthur Causeway and Biscayne Boulevard, prompting officials to shut down all westbound lanes. Drivers are being diverted off the causeway at the Biscayne Boulevard exit, where they can continue west on NE 13 Street to access the I-395 ramp at North Miami Avenue.

  • The incident occurred on Monday morning.

The players

Florida Department of Transportation

The state agency responsible for managing and maintaining Florida's transportation infrastructure, including the MacArthur Causeway.

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What’s next

Authorities have not provided an estimated timeline for when the westbound lanes will reopen, so drivers should continue to seek alternate routes until the situation is resolved.

The takeaway

This closure highlights the importance of the MacArthur Causeway as a critical transportation link in the Miami area, and the need for drivers to be prepared for unexpected delays and have alternative routes planned when incidents occur.