This is an N-Scale model train viaduct bracket. I built this to be a wall mounted bridge. The bridge section is loosely based on the Vancouver Skytrain. 

For other components of my rail bridge, look up my profile. There's about 20 different parts I made for this setup.  

This bracket is designed to be printed with some support in the middle. It's built to hold my train bridge sections on to a wall. I used wood screws and mollies for my support. 

I've also included sketchup files in case you want to modify. Please post makes if you make one.