NOAA Air Gap In Action (video shows the view from a large container ship approaching the Chesapeake Bay Bridge with energetic, lively music playing)
The Gunvor Maersk, 1,203 foot long container ship. Distance from water to highest point of ship: 181 feet (video shows ship going under the first span of the Bay Bridge with very little clearance between the bottom of the bridge and the top of the ship)
Chesapeake Bay Bridge. Distance from the water to the bottom of the bridge: 186 feet (video shows the container ship approaching the second span of the Bay Bridge)
(the background music suddenly cuts out as the ship slides under the second span of the Bay Bridge with 5 feet of clearance)
Captain Beth Christman, the person filming the transit with a camera phone, says, "There's a testament to air gap being correct."
(music resumes as video ends with a black title screen) Air gap data is one component of NOAA PORTS®. Learn more at tidesandcurrents.noaa.gov/ports_info.html Video credit: Capt. Beth Christman (Maryland Pilots)