 The highway originally carried State Route 1 and later U.S. Route 40 on its trek west from Reno over Donner Pass towards Sacramento, California.As Interstate 80 was being completed in the 1960s, it was largely replacing US 40 throughout the western United States.US 40 was truncated to a western terminus in Reno by 1966, officially removing the route from Verdi; however, some 1970s era maps still showed US 40 in Verdi.