Ridgefielder wrote:Agreed; even a deck-girder replacement of the approach spans will result in increased clearance outside the movable span. And all of the renders I've seen show a through-truss lift. The bridge as it stands is pretty much a worst-case for clearances in the closed position.F-line to Dudley via Park wrote:Same, because the approaches are unmodifiable with the surrounding density. The swing just means it can go up and down much faster. Since barge traffic is virtually the only maritime traffic left there the swings wouldn't have to go anywhere near max height to slip the barges under. That ends up shaving more time still off the clock of a start-to-finish bridge opening.Actually- not to start an argument but I think they could increase the clearance. The current swing span is a deck truss. If the replacement- lift, bascule or whatever- is a through-truss or a through-girder, there should be a decent increase in clearance above mean-high-water.