$22 million/mile is about a medium cost for a new four lane highway in a suburban area. Some 700-800' long highway bridge replacements are now running $40-50 million.
It's all got to be seen in perspective.
"Passing points, New Jersey Cut-off Eastward freight trains, being handled by two engines, when clearing at Blairstown and Greendell, may hold main track and put first class or other trains through sidings."
DL&W ETT, No. 84. Nov. 8, 1942