Portage railway

A portage railway is a short and possibly isolated section of railway used to bypass a section of unnavigable river or between two water bodies which are not directly connected. Cargo from waterborne vessels is unloaded, loaded onto conventional railroad , carried to the other end of the railway, where it is unloaded and loaded onto a second waterborne vessel. A portage railway is the opposite of a train ferry.

The following are or were locations of portage railways:

...
Wikipedia