I stumbled across this website with many photographs of bridges and a couple of tunnels on the SLSF. http://www.bridgehunter.com/category/railroad/st-louis-san-francisco-railroad/ The photograph in in front of the Winslow Tunnel is great!
FYI. I was looking for information to build a Frisco bridge in Arkansas and ran across an interesting web site and its called Bridgehunter.com. It shows multiple views of most if not all railroad bridges and tunnels in most states including the Frisco states. Maybe I'm the last to know of this site but if I'm not I recommend it for the historical information. Larry F.
Thank you Larry. The Bridge Hunter website is cool. I searched Arkansas - Frisco and it has some photos I've never seen before. They also give information on each bridge. Good find! Joe
A guide to all Frisco bridges: https://bridgehunter.com/category/railroad/st-louis-san-francisco-railway/ also those at the Library of Congress http://www.loc.gov/pictures http://www.loc.gov/pictures/item/ example; http://www.loc.gov/pictures/item/ms0224/ No two alike. Or to say, "A guide to Frisco fishing holes"! Some show how they were modified several times or replaced. https://bridgehunter.com/ar/lawrence/bh74207/ https://bridgehunter.com/photos/45/87/458778-L.jpg Frisco - Black Rock Bridge (Old) https://bridgehunter.com/photos/19/10/191005-L.jpg https://bridgehunter.com/ar/crawford/bh47333/