Work began on the canal in 1864 and was completed in 1880. The canal is 28 km long, and takes its water from the River Drac, upstream of Pont du Fossé, before channelling it into the Gap basin. In today's money, it cost some 2 billion euros to build! The man in charge of the project, Maurice Garnier, a local member of parliament and contractor, went bankrupt and died in poverty, but managed to improve the life of local farmers.