Tony Thompson wrote:there effectively WEREN'T covered hoppers in the early to mid 1930s."
It depends upon the railroad and the location. By 1935 the B&O already
had over 100 covered hoppers, class N-25, converted from class N-13
open-top hoppers. Unfortunately it appears that most were assign to
cement service providing cement to many construction projects (dams) in
In this period most covered hoppers were in assigned service so if the
proposed short line had such a customer as a destination one could
justified a few covered hoppers. The same ones making the trip. Covered
hoppers in "pool service" came much later at least on the B&O.