The worst part of building a model train layout is all of the work that needs to be done prior to the running of your trains. If you are like me you can't wait to get your trains running on at least on part of the track. I enjoy having my trains run around while I work on parts of the layout.
So the only thing stopping me from getting my trains to run around the lower loop is trestle building. For the major trestle on the lower layout I used this free O Scale trestle template.
I printed out the template and glued it to a spare piece of plywood. I then glued some bits of scrap dowels down to hold the pieces in. Next I started assembling the parts using 1/4 inch square dowels from Home Depot and craft sticks. I found it to be lots of fun! It took many nights of work but it certainly is a project anyone can try.
The only thing left on my first tresle is the NBW (nut, bolt, washer) castings I ordered from Grandt Line.