Updated 11/05/2018:
Today, I installed the bridge shoes and pedestals under the western end of the bridge. I also installed the shelf that will hold them all in place. Pilot holes for screws in the “stone” arch (eastern abutment) were also drilled. Four #6 wood screws will hold the bridge to the arch. I painted and cut to length two pedestals to fit under the eastern end of the bridge as well. These will hold up the bridge shoes which will support the bottom of the truss.
Before all that was installed, I printed another sheet of stone paper, glued it to the wall of the abutment, and trimmed it to size. The sections outside the truss will eventually (possibly) be covered in Peel-N-Stick Chooch Large Cut Stone. I then attached the bridge to the eastern abutment (stone arch). The stone arch was then propped up to its approximate elevation with wood blocks.
Here are a couple of close-ups of the western abutment and the 15" truss.
Just for grins, I positioned the western abutment and all piers in place. Then I moved the stone arch to its approximate place on layout. The following photo shows the piers nearly ready to accept the bridge trusses.
Tomorrow, I will focus on weathering all the pedestals and bridge feet in preparation for test fitting the bridge.
More when I know it. 
George
