ANNAPOLIS, Md. (WJZ) — High winds on Friday afternoon caused delays for vehicles heading eastbound on the Chesapeake Bay Bridge, the Maryland Transportation Authority said.

Full wind restrictions, which are triggered whenever there’s sustained wind speeds exceeding 50 mph, are in effect, limiting travel on the bridge to cars, pickup trucks, flatbed trailers, commercial buses and heavy-laden tractor/trailers.

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Trucks carrying box trailers cannot cross the bridge if their gross weight is less than 64,000 pounds, the agency said.

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About 5:33 p.m., the agency said there was 3 1/2 backup on the eastbound lanes before the Chesapeake Bay Bridge.

Limited wind restrictions are in effect for the Francis Scott Key Bridge (I-695), the agency said Friday evening. Law enforcement may stop vehicles with house trailers and empty box trailers, or any vehicle they deem to be unsafe, from crossing the bridge.

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Wind warnings are in effect at the Hatem (US 40), Tydings (I-95) and Nice (US 301) bridges. Motorcyclists and drivers with house trailers, box trailers or roof-mount racks are advised to use caution while crossing bridges under such conditions.

CBS Baltimore Staff