While perusing through a railroad trader site, I came across this dandy idea for old tank cars:

Sterling Rail - Buy and Sell Locomotives, Rail Cars, Railroad Equipment, MOW, Passenger Cars, and Railroad Rail

Turn them into culverts!!

Sterling Rail - Tank Car Culverts For Sale

A 9' diameter will run you $220 per foot up to 47 feet lengths.

You can just make out the old markings on the representative sections.

I could imagine a 89' TTX flatcar might be able to haul two 47' sections from the Repurposer to the customer.

Too new for my Era, of course!!