Complex sentence: The railway company increased levies on water transport such that when the concession was withdrawn in 1898 the damage was already done: between 1850 and 1893, water freight diminished by two thirds.
Split into simpler sentences: The railway company increased the levies on water transport such that when the concession was withdrawn in 1898 the damage was already done. Indeed between 1850 and 1893, water freight diminished by two thirds.