I think that is the new bridge up river from the tunnel at Pritchard..
there is Bender shipyards and Alabama Drydock downriver....plus some state docks etc
I drive or maybe that should be drove over that bridge from time to time and it is the Africatown-Cochran Bridge, US 98 in Pritchard. Just this week or so I had notice that massive oil rig being worked on very near the bridge. It only had to be pushed up stream a short distance once it broke free.