The two tractor-trailers flipped over on the northbound side of the bridge around 1:30 p.m. Friday, blocking two right lanes, said state police.
The ban was issued after another tractor-trailer flipped over on the northbound side around 10 a.m. Friday.
The banned vehicles include tractor-trailers, buses, and motorcycles, state police said.
The Thruway Authority has also issued a travel warning, encouraging residents to stay off the roads unless necessary.
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