complicated vertical climbing lock.
The idea of a waterway connecting the Mediterranean and Atlantic dates back to Roman time. This involved crossing a watershed set at almost 190m above sea level and an irregular supply of water to the rivers in a drought region. In the 17th century, Pierre-Paul Riquet solved many of the problems that had stalled the project using a purpose built canal with a reservoir to collect water from Montagne Noir. He then developed hand dug channels to convey the water to the canal with intermediary reservoirs, the largest being the Saint- Ferreol Lake (the Knight of Clervilles idea) . Unfortunately he died with the last 2.5 miles still unbuilt with his fortune in tatters. The entire project was completed in 14 years, with 7 million cubic metres of rock and ryublle shifted using picks and shovels. |