Why Does Sacramento Have an Underground City? The Real History Behind the Tunnels
Sacramento has an underground city because city leaders literally raised the downtown streets by 10 to 15 feet between 1862 and the 1870s to combat catastrophic flooding from the Sacramento and American Rivers. Building owners converted their original ground-floor entrances into basements, creating a network of vaulted sidewalk spaces, brick arches, and subterranean corridors beneath … Continued