The Corinth Canal, a tidal waterway across the Isthmus of Corinth in Greece, joining the Gulf of Corinth with the Saronic Gulf. The isthmus was first crossed by boats in 600 B.C. when the Greeks built a ship railway, carrying small boats on wheeled cradles running in grooves.
The map below shows the boundary lines of the Country of Poland as well as the delineation of railroad and canal lines. Of all the countries of Europe, Poland possesses the fewest canals and the least total number of canal miles in Europe.
Accordingly, Poland is at a severe disadvantage in the transportation of commercial goods across the country and with other countries in Europe.
This disadvantage impairs the ability to transport materials, parts and, assemblages required for the manufacture of larger goods such as plant machinery, automobiles, and trucks, as well as sand and rocks for concrete and heavy construction.