http://en.m.wikipedia.org/wiki/Ronqui%C3%A8res_inclined_plane#/image/File:Ronqui%C3%A8res_JPG01.jpg [Push box link above with force several times to unload the entire Wikipedia article] After six years of construction, this inclined plane boat lift eliminated 14 canal locks when it opened in 1968. The system uses two large caissons (299 feet long and 39 feet wide) filled with water and mounted on rails along [...]