Which is farther north, Lehigh Canal or New Orleans Outfall Canals?
New Orleans Outfall Canals There are three outfall canals in New Orleans, Louisiana – the 17th Street, Orleans Avenue and London Avenue canals. These canals are a critical element of New Orleans’ flood control system, serving as drainage conduits for much of the city. There are 13 mi of levees and floodwalls that line the sides of the canals. The 17th Street Canal is the largest and most important drainage canal and is capable of conveying more water than the Orleans Avenue and London Avenue Canals combined.
Nutbrook Canal The Nutbrook Canal was a canal in England which ran between Shipley in Derbyshire and the Erewash Canal, joining it near Trowell. It was built to serve the collieries at Shipley and West Hallam, and was completed in 1796. It was initially profitable, but from 1846 faced competition from the railways, and more seriously, subsidence caused by the coal mines that it was built to serve. With the mines failing to pay tolls for goods carried on the canal, and in some cases refusing to accept responsibility for the subsidence, most of it was closed in 1895, although the final 1.5 mi remained in use until 1949.