Wikipedia:WikiProject U.S. Roads/California/History/Interregional Road System

I believe this to be a full chronology of the changes to the Interregional Road System, referenced to state laws. Of course there may be typos or misinterpretations, and I may have missed some routes that were removed and later re-added. --NE2 02:16, 6 January 2008 (UTC)

NHS in urban areas
Interstates are not listed here; neither are routes in small urban areas that are also listed above.
 * SR 2, I-5 to I-210
 * SR 4, I-80 to SR 160 and I-5 to SR 99
 * SR 8, Sunset Cliffs Boulevard to I-5
 * SR 14, I-5 to rural
 * SR 15, I-5 to I-8
 * SR 22, I-405 to SR 55
 * SR 23, US 101 to SR 118
 * SR 24, I-580 to I-680
 * SR 29, SR 37 to SR 121
 * SR 37, US 101 to I-80
 * SR 44, SR 299 to rural
 * SR 47, I-110 to I-10
 * SR 55, SR 73 to SR 91
 * SR 57, I-5 to I-210
 * SR 60, I-10 to I-10
 * SR 71, SR 91 to SR 57
 * SR 73, I-5 to I-405
 * SR 78, I-5 to I-15
 * SR 80, US 101 to I-280
 * SR 84, US 101 to I-880
 * SR 87, I-280 to US 101
 * SR 91, I-110 to I-215
 * SR 92, I-280 to I-880
 * SR 94, I-5 to rural
 * US 101, I-5 to rural and rural to rural
 * SR 105, El Segundo to SR 1
 * SR 110, I-10 to I-5
 * SR 118, SR 126 to I-210
 * SR 125, SR 905 to I-8
 * SR 126, US 101 to SR 14
 * SR 133, I-5 to SR 241
 * SR 134, US 101 to I-210
 * SR 160, SR 4 to rural
 * SR 170, US 101 to I-5
 * SR 210, SR 57 to I-10
 * SR 241, SR 133 to SR 91
 * SR 299, rural to SR 44
 * SR 710, SR 47 to SR 1 and I-10 to I-210