Jackson Railcar offers some culverts in their scenery details line. Unfortunately, they don't give any dimensions for them.
For example, this N-scale double culvert looks very much like style of the Wabash culvert I want to model on my layout:
https://www.jacksonrail.com/product/jackson-railcar-n62046e-cement-culvert-flared-end-double-2pck-n-scale-kit/Alas, I've no idea how big it it is. I've sent e-mail and filled out their "contact us" form, but haven't got any response after a week. Does anyone have any information on the size of these things?
