When installing, be careful to prevent any track bumps, vertical kinks and twists at transition point such as the transition from adjacent land to the bridge track. It takes paying attention to how level two rails are on the approach, getting the first piers exactly the right height, not stacking joints (plywood, roadbed, rails), etc. No problem having on a grade as long as done carefully. I had a bump and some twist on one end of my HO truss / girder combo. It didn't cause derailment but the train cars showed off the problem. I had to do some troublesome adjusting.
Paul
Modeling HO with a transition era UP bent
I think the idea of 2 Central Valley 150' spans, with concrete piers, as the main span, and then fill in on each end, or either end, depending on what the bridge is spanning, with the Micro Engineering parts for the approaches.
I like those pre-made wood bents. I didn't know those were availiable. I think they would be more suited for a trestle type span.
Mike.
My You Tube
Premade bents.
Central Valley
A single-span truss of that length would be higher than the 150' one offered by CV, and the individual members would likely be heavier than those of such a shorter bridge....perhaps a kitbash of the HO scale version?
Wayne
Looking for some suggestions. I have seen photos of some of the really impressive bridges you all have built, and want to give it a try!
I work in N scale and looking to build a truss bridge somewhere in neighborhood of 350-400 scale feet. One issue is that because of space restrictions it has to be built on a grade (approx 2 pct). Any suggestions, advice, issues, etc.
Thanks,
Tim