MIAMI BEACH (CBSMiami) – If you’re heading out to Miami Beach on the MacArthur Causeway be sure to give yourself plenty of extra time starting on Sunday.

The Florida Department of Transportation will close the flyover that eastbound traffic coming off the MacArthur Causeway uses to go north on Alton Road.

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The closure is scheduled to last roughly a month, according to FDOT. With the flyover closed, FDOT will make repairs to the bridge.

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The repairs are being made to strengthen the barriers on the roadway. According to FDOT, it will take anywhere from two to four times longer to get on and off Miami Beach with the flyover closed.

Once the closure is in place, all eastbound traffic will shift to the 5th Street exit and drivers will then turn north onto Alton Road. Drivers going either direction on Alton Road around 5th Street will also have to take detours around the intersection to go either north or south on Alton.

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The closure of the flyover is scheduled to start Sunday. Other construction already underway on Alton will continue while the flyover is closed.