03-08-2011, 12:47 PM
I had the same thing happen on my first layout, except, as I seem to see in your photo, and somewhat incongruous with your description, the free track on the bridge was what deflected. My conclusion was that the framing on either end had encroached on the non-moving, non-afftected styrened or metal bridge. This incursion, caused by increased humidity in the wood, which caused the framing to change dimensions, forced the track to buck between the incursions. At least, looking at the photo, I can see deflection near the far end of the bridge, but on the bridge. Same as in my case five years ago. My recourse was to remove the flex length on the bridge, clip about 1/16" of its rail length, and to then re-install it. Worked fine from that point on.
Crandell
Crandell