A half-marathon? I've run a few half-marathons and one marathon.
Actually, I wouldn't mind running across...It's being in the CAR that bothers me.
Remember when the I-40 bridge collapsed here in Oklahoma? THAT is my worst fear...those poor people just drove right off into the water.
There's an excellent chronicle of the CBBT's construction on Modern Marvels once in a while. I live not too far from it and drive across it fairly often. It's wonderful to be in the middle of it and not see land on either side. I stood on the first island in early 2003 and watched the Navy deploying for Iraq through there. Beautiful sight.