IN THE COMMENTS: Scott M says:
[I]t looks like you were not on I-55. You were on 270 north around the west side of St Louis. The first bridge you crossed was the Chain Of Rocks bridge.I said:
The bridge to the south, at the beginning of the video, is the old Chain of Rocks bridge that they filmed the final bridge scene from "Escape From New York" on.
The second waterway you crossed [was] the canal. The Mississippi is too shallow for most commercial traffic at the point you crossed, so they use the canal for barge traffic.
Thanks, Scott. You're definitely right. No wonder the maps made no sense to me as I tried to write this post.Here's some info on the Old Chain of Rocks Bridge. (I did see that tower out in the water.) Here are some clips from "Escape from New York." (Not sure if the bridge scene is in there.)
I called the video I-50 and even wrote that on the video! Meade did all the driving, and he told me it was I-55, but in fact — I remember now — when he got to St. Louis, he switched from the Google maps plan to following signs that said "Chicago." (At a key fork in the road, Google wanted us to opt for Memphis over Chicago, which would have had us scooting under St. Louis rather than over, and he preferred to go with the signs.)