Matt E.
Google
The Oudegracht, or 'old canal', runs through the center of Utrecht in the Netherlands. It begins in the southeast of the city. Here, the Kromme Rijn (the original main bed of the Rhine) and the Vaartse Rijn (a medieval canal reconnecting Utrecht to the newer main stream of the Rhine, the Lek) meet the original moat of the fortified city, and the Oudegracht leads from there into the city center. The water level of the Rhine in Utrecht fell because of the new dam at Wijk bij Duurstede. Soil was excavated and used to raise the sides of the canal, reducing the risk of flooding. By the time the city's lock system was completed in 1275, the water level was constant, allowing the construction of permanently dry cellars and new quays at water level, hence the typical wharves below street level. Warehouses used to line the canal, but today many of these warehouses have been converted into restaurants and cafes.