D&D 3.0: Tales from Mystara
Kingdom of Karameikos
South of Highforge is the biggest Ferry on the Hillfollow river. The gnome-build contraption uses a series of mechanism moved by water mills on both sides of the river that moves the colossal ferry who can transport full carriages, cattle, people, etc. Costs vary from 1cp to 10gps or more depending on the size and weight of the cargo. People cross for 1cp. The crossing is made at fixed times each day but is common for the crossing to be delayed as the gnomes like to cross with a bigger (wealthy) cargo.