I rummaged through my references and the road number (70343) seems to be in the MOW equipment range. Though I can't find the car's particular number, the closest ones to it are Hi-Rail trucks and such. Maybe it's for carrying other equipment like bulldozers or front-end loaders or something in that nature on MOW trains?
BNSF hopper #914520. I haven't found any good railfanning locations near Langley, BC, but there is a tiny yard with maybe three tracks a few miles west of me, which I drove by today. It was a disappointment because all I could see from the road was a few hoppers and one flatcar. This was the only hopper I had a clear view of, though, because of all the shrubbery.
I've always wanted to visit that yard, but don't know where I could park and take photos without trespassing.
A splash of color amidst the blackness of the ethanol tankers on NS 6K4, eastbound to New Jersey at Wyo JCT. 08/12/24
BN flat car #961599, currently coupled to the hopper I posted nine days ago. Taken in Surrey, BC, Canada, at a small yard adjacent to a community mailbox on Colebrook Road today. I assume the red box on the end is for storage of something. The "MW" might indicate maintenance-of-way. Half a mile to the east, a string of about five MOW vehicles are coupled together, obscured from the road by shrubbery.
I'd like to see how they horsed that cannon in there... I've been wondering about that mystery myself since it's been posted. Found one on Flickr: https://www.flickr.com/photos/23805061@N04/13120012994 It looks somewhat worse for wear in the Flickr photo (dated 1982). Doesn't say what it's for. Maybe it's for extra-long pool noodles.
An assortment of old wagons on a siding somewhere between London and Newcastle. May have been a maintenance/work train. August 2003.