In between Junction Canal and California Aqueduct which one was last used in 1871, and was then abandoned?
California Aqueduct The Governor Edmund G. Brown California Aqueduct is a system of canals, tunnels, and pipelines that conveys water collected from the Sierra Nevada Mountains and valleys of Northern and Central California to Southern California. Named after California Governor Edmund Gerald "Pat" Brown Sr., the over 400 mi aqueduct is the principal feature of the California State Water Project.
Swalley Irrigation District The Swalley Irrigation District supplies water to consumers through a network of pipes and canals fed by the Deschutes River near Bend in the U.S. state of Oregon. The network, begun in 1899, is a closed system with an intake behind North Canal Dam in Bend and a main canal, the Swalley Canal, that runs north from the city for about 13 mi . The only covered bridge east of the Cascade Range in Oregon crosses the Swalley Canal.