The bridge

UPDATED with news about three roadside murders

For about a fourth of the two-and-a-half-hour drive from my home to New Orleans, the route follows a long, high bridge, or technically a series of them, given that one bridge feeds into another that deposits you onto a similarly long, elevated route. Overall, you’re on a bridge for about 50 miles.

Just south of Ponchatoula, Louisiana, I-55 enters a geogr…