Getting a truck from Las Vegas to Flagstaff or Phoenix used to involve crossing the dam. Always a hoot, it was also often harrowing. Especially fun is the hairpin turn on the west approach. Truckers would get on the CB (children's band) and announce their approach, hoping to avoid two at the same time in the curve. Throw in too many tourists devoting too much of their brain power to goggling at the scenery, both behind the wheel and on foot, and I won't miss the dam crossing.
(During the construction of the San Diego Bay Bridge, one woman, well known for recreational hysterics/histrionics, succeeded in forcing an additional few inches onto the sidewalls. I do not recall the length of delay or the additional expense, but they were large and wasted.)