Not sure I want to dedicate that much time. There's are a whole bunch of rail bridges across the Upper Mississippi. Here's a photo of a line exiting a tunnel, on the flat for 100 yards while crossing another rail line, then entering the bridge. After the bridge it hangs a hard left into town while paralleling the River. The amount of rail traffic, of different companies, on the Upper River was amazing.
Quite Possible. Google Maps shows rail lines that have similar routing, though offers no satellite view. Above St. Louis, every community/town/city seemed to blur into the next. I didn't realize there was so much industry and economy so closely packed along the River. It was overwhelming for someone growing up in forested rural New York and New Hampshire, now living in south Mississippi equally rural and forested. Thanks.
Some old trestle bridges. https://mashable.com/2015/10/29/railroad-trestles/ https://www.thevintagenews.com/2018/02/20/trestle-bridges/ https://en.wikipedia.org/wiki/Trestle_bridge
The above was originally Chicago, Rock Island & Pacific but is now used by the regional "Farmrail". Some other classic bridges to look at are; "The Bridge on the River Kawi" '57, "The Bridge at Remagen" '69, "A Bridge Too Far" '77, "Bridge to Terabithia" '07 and last but not least the "Bridge of Spies" '15.
It is, and here's a railfan perspective on that spot, from none other than Mike Danneman: https://flic.kr/p/2kJQczM
Another old bridge manufacture. Descriptive catalogue of wrought-iron bridges.. 1874 by Keystone bridge company, Pittsburgh https://archive.org/details/ajr3428.0001.001.umich.edu/mode/2up?q=kelly's++patent+turn+tables
Here's another one in the state of Maine. The North Anson Railroad Bridge. https://bridgehunter.com/me/somerset/bh59439/ https://lifesatrip.ca/2016/08/01/walking-the-abandoned-rail-bridge-of-north-anson/
Movables bridges by Hovey, Otis Ellis, 1864-1941 Publication date 1926 https://archive.org/details/movablesbridges01hove/page/n7/mode/2up?q=railroad+draw+bridges The designing of draw-spans 1898 by Wright, Charles Herbert, 1857- [from old catalog] https://archive.org/details/designingdrawsp01wriggoog/page/n7/mode/2up?q=railroad+draw+bridges An elementary and practical treatise on bridge building 1873 by Whipple, S https://archive.org/details/elementarypracti00whipuoft/page/n9/mode/2up?q=railroad+draw+bridges There, now I'm heading out to my back yard to start building!
There are some great railroad bridge photos on this NY public library digital collection site. https://digitalcollections.nypl.org/search/index?utf8=✓&keywords=railroad+bridges
Dale Creek, WY on the original UP route to Sherman Hill summit. The ROW has been since relocated, but the foundations for this mighty trestle remains. Around 2 miles from the current ROW, you can find the ghost of the mighty trestle: https://goo.gl/maps/W9gLWaxQe11MaeBN8
How do you tell the difference between a Black Bear and a Grizzly Bear? With the bear chasing you, climb up a tree. If the bear comes up after you, it is a Black Bear. If it knocks the tree down, it is a Grizzly.