Hey Russ, while you are at it, how about posting the instructions on how to post photos on Trainboard. After going almost ten years without a camera I finally got a decent one. At one time there were instructions here on posting photos but I can't find them.
The simplest way is to drag a photo from your desk top or an open file folder and drop it into the Reply Field at the bottom of the page in the thread you are in. You may have to resize it to a smaller image for it to be accepted. I forget what the upper limit is but I usually upload them at 1280 pixels wide. It then gives you the option of posting it as a Thumbnail or Full Image.
My image posting results recently have been--well--puzzling. I have a website and sometimes posting images from it works, and sometimes not. I haven't posted anything to Railimages for years. So I'm left with attaching them from my very skittish new Mac, and only after resizing them in an even more skittish version of Photoshop. I finally broke down and went with Adobe Creative Cloud and newer versions of MacOS. That was a mistake, but I was forced into it by 3D software and 3D printer drivers that just would not run on older versions of MacOS like Snow Leopard. Oh well, I am probably moving yet again, this time to a newer house with workshops and a trainroom, so this too will pass.
I like to post this although it may not be the subject of the present discussion. This viaduct was built by an American company the Pennsylvania and Maryland Bridge Construction Company in 1900 in Burma (now Myanmar) and still being used today, a remarkable feat of engineering. It was the largest railway trestle in the world at that time. I traveled over it and took this photograph.
I thought this was a cool picture, but I didn't want to create a new thread. Looking quite like the model railroad were the PRR's lines at Oil City, PA. I think I see PC cars in the yard, so this probably dates from the mid-1970s. The bridge and wye still remain today, though the track has been removed from the line that curves to the right, along with the lines it fed. The line to the left runs north to Titusville, site of Drake's famous 1859 well. It's operated today by the aptly named Oil Creek and Titusville Railroad. The entire engine terminal and yard area is gone, though you can still see where the spoke tracks were in the turntable area.
A really good resource , it's long out of print but there is even one on Amazon right now for $48. It was $60 new when in print.
I see it's by David Plowden. He's an excellent photographer and has done a number of very good rail books. Thanks for the heads up on this one.
There are quite a few bridges on my old layout. This layout no longer exists. I am currently building a new, much larger one.
Ooops, being an interlocking tower fan, I should have also pointed out the PRR's Bridge Tower at Oil City, built at the perfect spot in the middle of a wye leg at the left on the north bank. I suspect that it's gone today, but am not sure.
Shapeways would also be an other option. As a search criterion: bridge piers, bridge footings, bridge abutments.