Joso Viaduct

[UP Simon]

Anybody got photos, profiles, maps etc of the Joso Bridge over the Snake river in Washington that they would be prepared to share?

I’m looking to build a Free-mo-N module based on it

Thanks
Simon

[crencs]

Here you go https://historicbridges.org/bridges/browser/?bridgebrowser=washington/josohighbridge/#photosvideos

If you go forward with the project it would be a great thread for TRW. 

[basementcalling]

https://www.pbase.com/trackside_photography/the_washy_line&page=6

Go to page 2 of this guy's photos of a cab ride over that line.

[nkalanaga]

OK, one question for the bridge experts:  How do you build a truss bridge from the top down?  The construction photos clearly show the towers being built after the truss is in place, so what holds the end of the truss up?

I've heard of "continuous truss" bridges, where it's basically a single span, with supports spaced along it, but this is clearly separate spans, connected only by the deck, so what holds it up during construction?

[James Costello]

The November 2020 issue of N Scale Railroading has some pretty decent photos of Duncan Cabassi's build of the Joso trestle on his UP BNSF Joint Division layout.