Wiktionary
n. (context neologism English) A fear of crossing bridges.
Wikipedia
Gephyrophobia is the anxiety disorder or specific phobia characterized by the fear of bridges. As a result, sufferers of gephyrophobia may avoid routes that will take them over bridges.
Some possible explanations of gephyrophobia may be the fear of the structural integrity of the bridges itself, or the fear that the bridge will collapse if they try to cross it.
Dr. Michael Liebowitz, founder of the Anxiety Disorders Clinic at the New York State Psychiatric Institute, says, "It's not an isolated phobia, but usually part of a larger constellation ... It's people who get panic attacks. You get light-headed, dizzy; your heart races. You become afraid that you'll feel trapped."
The New York Thruway Authority will lead gephyrophobiacs over the Tappan Zee Bridge. A driver can call the authority in advance and arrange for someone to drive the car over the bridge for them. The authority performs the service about six times a year.
The Maryland Transportation Authority offers a similar service for crossing the Chesapeake Bay Bridge.
The Mackinac Bridge Authority, which oversees the Mackinac Bridge, which connects Michigan’s Upper and Lower peninsulas, will drive one's car across its span for any needy gephyrophobiacs. Some thousand drivers take advantage of this free program each year.
The term gephyrophobia comes from Greek γέφυρα (gephura) meaning "bridge" and φόβος (phobos) "fear".