Which is older, the North Shore Channel, or the Friant-Kern Canal?
North Shore Channel: The North Shore Channel is a drainage canal built between 1907 and 1910 to flush the sewage-filled North Branch of the Chicago River down the Chicago Sanitary and Ship Canal. Friant-Kern Canal:  Construction began in 1949 and the canal was completed in 1951, at a cost of $60.8 million.
North Shore Channel