Originally posted by Nordlyshttp://www.cnn.com/2008/TRAVEL/09/22/bridge.fear.ap/index.html
zeugmatophobia
Edit: Okay, I made that up (it does make sense, because "zeugma" does mean "bridge" among other things). Apparently it's officially called gephyrophobia. http://www.medterms.com/script/main/art.asp?articlekey=12355