http://www.soundrail.com/images/ProtoType/Spokane/curve1.jpg & http://www.soundrail.com/images/ProtoType/Spokane/curve2.jpg are probably is the best as you can distinctly see the curvature of the bridge. If you are in doubt, put a straight edge against the monitor you will see that the line formed by the bottom of the bridge NOT straight, and in fact is near the same curvature of the cement just above it.
http://www.soundrail.com/images/ProtoType/Spokane/curve3.jpg & http://www.soundrail.com/images/ProtoType/Spokane/curve5.jpg & are ok, but camera angle and distance from the bottom of the bridge makes it harder to see. But then again, if you put a straight edge against the monitor you still will see that the line formed by the bottom of the bridge is NOT straight.
Don't give me any crap about the 'curvature of the monitor screen' causing the curve as you can move those pictures around on your screen to view at either side of your monitor. Also, you should see all the pictures at the same ( almost ) screen location; where you can then note that there are left AND right curves. Curved Bridges - YES - they do exist!
http://www.soundrail.com/images/ProtoType/Spokane/Y.jpg is a picture of the old crow that just left and now is on Bob's plate.
As a side note, the I90.jpg pix is the location of the derailment a few years back where two or three cars tipped and landed on I90. I don't remember if there were any injuries, but it sure messed up traffic ( both car and rail ) for awhile.
Also, if there is anyway you can get to Spokane, it is a great place to railfan. If you do come in to Spokane from the East on HiWay 2, let me know when you will be in Libby and I will show ya some great railfan spots in the area.