and truck traffic increased US 30 was moved south to its present divided 4 lane route, and the old road became known as "Old US 30," Joliet Road, and SR 330. Also, US 6 was removed from its route along Ridge Road at the northern terminus of SR 73 to the Borman Expressway. Its importance diminished and its major connections removed, the Indiana legislature felt that a road that lay entirely within a single town (or at least did not have a portion that sat entirely in another town), should not be provided state funding as its primary source of upkeep. As such, SR 73 was decommissioned as an Indiana state route on September 26, 1969. References External links Town of Griffith, Indiana website Towns in Lake County, Indiana Towns in Indiana Populated places established in 1853 1854 establishments in Indiana