Well I beg to differ. It's done all the time.
Obviously not by the side of the road, but on prepared flat pads with a concrete working pad on top.
From what they are doing it looks like they won't be any casting large or complex beams or girders
But I have been on projects where it is done. Several projects in Saudi Arabia on which I was an engineer were done this way.
Obviously they will pour their columns in place on site and the girders will be poured on top of them. As to what kind of support beams will be placed atop the girders to support the bridge deck is the question.
By the way there is some long vegetation growing through the rebar cages so they have been on site for several weeks maybe more than a month, - well ahead of the award of contract.
So I guess the Contractor was pre-selected, if he was the one tying the steel cages.
But we are over-thinking this work.
It is going to be an inexpensive and not very attractive bridge - really an overpass is all it will be. Not very creative.
The old bridge had way more charm, and seemed like a portal to the North Coast.
The new one most people won't even notice.
