01-14-2012, 04:02 PM
I finished the demo part of the project, getting the subroadbed cut away enough to allow the Atlas girder bridge to be installed. My subroadbed is 3/4 inch plywood laminated to 1/2 inch Celotex, with all the plywood cut away here and just the Celotex remaining. However, this leaves the two sides a bit wobbly, and since my main line handles all manner of heavy power, like two U50s MUed, or a turbine MUed with GP9, or 4-to-6 unit diesel consists, I'm going to have to add some sort of reinforcing falsework below the bridge gap to stiffen things.
