Ah, yes, bridges - our short wearing hero Mark Found looks at the best ways of spanning gaps - and settles on the tried and trusted method of...well, that would be telling, wouldn't it?!
The wooden railroad trestles were built in the Wild West. Lots were built during the construction of the Transcontinental Railroad. The Transcontinental Railroad was completed on May 10th 1869. There were 2 American locomotives: U.P.R.R. ( Union Pacific Railroad ) & the C.P.R.R. ( Central Pacific Railroad ). 1 was called Jupiter the other 1 was 199. Jupiter was the C.P.R.R. & the 199 was the U.P.R.R.
I have to point out at 8:17 that you are incorrect about the White Pass Locomotive sir. The Pass and Yukon is narrow gauge line, the diesel unit seen there is Narrow gauge. Don't judge a locomotive just by its design, do some research before saying something about it.
A bit of constructive criticism but it all seems a bit slow, and boring. A good bit of re-editing could make this alive. If you put a title 'Bridges' then that's what people come for, not a long diatribe.