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

__TOC__

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)

class="wikitable sortable"

!Year

!Law

!Now

!From

!To

![http://www.dot.ca.gov/hq/transprog/ocip/te/highemphasis_routes.pdf High Emphasis]

![http://www.dot.ca.gov/hq/transprog/ocip/te/focusroutes.pdf Focus]

!NHS

!Notes

1989

|105

|San Juan Capistrano (I-5)

|Leggett (US 101)

|yes, Monterey to Santa Cruz

1989

|105

|LA-LB urban

|SR 138

1989

|105

|Antioch-Pittsburg urban

|Markleeville (SR 89)

1989

|105

|Mexico

|Oregon

|yes

1989

|105

|Bishop (US 395)

|Nevada

|yes

1996

|1154

|Mexico

|El Centro (I-8)

|yes

1989

|105

|San Diego (Sunset Cliffs Boulevard)

|Arizona

|yes

1989

|105

|Santa Cruz urban

|San Jose urban

1989

|105

|10

|SB-Riverside urban

|Arizona

|yes

1989

|105

|12

|Valley Ford (SR 1)

|San Andreas (SR 49)

|yes, Fairfield to Clements

1989

|105

|14

|Santa Monica (SR 1)

|Little Lake (US 395)

|yes, north of Tunnel Station

1989

|105

|15

|San Diego (I-5)

|Nevada

|yes

1989

|105

|16

|Sacramento urban

|Drytown (SR 49)

1989

|105

|17

|Santa Cruz urban

|San Jose urban

|yes

1989

|105

|18

|SB-Riverside urban

|Victorville (I-15)

1996

|1154

|18

|Victorville (I-15)

|Pearblossom (SR 138)

|yes

1989

|105

|20

|Fort Bragg (SR 1)

|Emigrant Gap (I-80)

|yes, Ukiah to Upper Lake and Lower Lake to Emigrant Gap

1996

|1154

|25

|SR 146

|Gilroy (US 101)

1989

|105

|28

|Tahoe City (SR 89)

|Nevada

1989

|105

|29

|Vallejo (I-80)

|Upper Lake (SR 20)

|yes, Lower Lake to Upper Lake

|yes, Vallejo to Napa and Lower Lake to Upper Lake

1989

|105

|36

|Red Bluff (I-5)

|Johnsonville (US 395)

|yes, connections at the ends only

1989

|105

|37

|SFO urban (Novato)

|SFO urban (Vallejo)

|yes

1989

|105

|38

|SB-Riverside urban

|Big Bear Lake west end (SR 18)

1989

|105

|40

|Needles (I-15)

|Arizona

|yes

1989

|105

|41

|Morro Bay (SR 1)

|Yosemite National Park

|yes, Cholame to Yosemite

|yes, Cholame to Fresno

|yes, Cholame to Yosemite

1989

|105

|44

|Redding urban

|Susanville (SR 36)

|yes

1989

|105

|46

|Cambria (SR 1)

|I-5

|yes, Paso Robles to I-5

1996

|1154

|46

|I-5

|Famoso (SR 99)

|yes

1989

|105

|49

|Oakhurst (SR 41)

|Sattley (SR 89)

|yes, Auburn to Nevada City

1989

|105

|50

|West Sacramento (I-80)

|Nevada

|yes

1989

|105

|53

|SR 29

|SR 20

|yes

1989

|105

|58

|I-5

|Barstow (I-15)

|yes

1989

|105

|62

|Whitewater (I-10)

|Arizona

1989

|105

|63

|Visalia urban

|SR 180

1989

|105

|65

|Bakersfield urban

|Exeter (SR 198)

|yes

1996

|436

|65

|Roseville (I-80)

|Yuba City (SR 99)

1989

|105

|68

|Asilomar State Beach

|Salinas (US 101)

1996

|1154

|70

|Sacramento (SR 99)

|Wicks Corner (SR 149)

|yes

1989

|105

|70

|Wicks Corner (SR 149)

|Hallelujah Junction (US 395)

|yes

1989

|105

|74

|San Juan Capistrano (I-5)

|Thousand Palms (I-10)

|yes, Perris to Hemet

1989

|105

|78

|Oceanside (I-5)

|Blythe (I-10)

|yes, connection in Brawley

|yes, Oceanside to Escondido and connection in Brawley

1989

|105

|79

|Descanso (I-8)

|Temecula (I-15)

1996

|1154

|79

|Temecula (I-15)

|Beaumont (I-10)

|yes

1989

|105

|80

|San Francisco (US 101)

|Nevada

|yes

2003

|598

|84

|Livermore (I-580)

|Brentwood (SR 4)

1989

|105

|86

|Brawley (SR 111)

|Indio (I-10)

|yes, plus Heber to Brawley (not in the IRRS)

|yes

1989

|105

|88

|Stockton (SR 99)

|Nevada

|yes, Clements to Nevada

1989

|105

|89

|Coleville (US 395)

|Mount Shasta (I-5)

|yes, Lassen to Mount Shasta

1996

|1154

|94

|San Diego (I-5)

|Jacumba (I-8)

|yes, San Diego to Tecate

|Except in San Diego urban

1989

|105

|95

|Blythe (I-10)

|Nevada

|yes

|yes, Needles to Nevada

1989

|105

|97

|Weed (I-5)

|Oregon

|yes

1996

|1154

|98

|SR 111

|SR 7

1989

|105

|99

|Wheeler Ridge (I-5)

|Red Bluff (SR 36)

|yes

|yes, except between SR 70 and SR 149

|Via either SR 99 or SR 70 between Sacramento and Chico

1989

|105

|101

|Los Angeles (I-5)

|Oregon

|yes

1989

|105

|108

|Yosemite Junction (SR 120)

|US 395

1989

|105

|111

|Mexico

|Whitewater (I-10)

|yes, Mexico to Brawley

1989

|105

|113

|Davis (I-80)

|Woodland (I-5)

1989

|105

|116

|Jenner (SR 1)

|Sebastopol (SR 12)

1989

|105

|120

|Mossdale (I-5)

|Mono Lake (US 395)

|yes

1989

|105

|126

|Oxnard-Ventura-Thousand Oaks urban

|I-5

|yes

1989

|105

|127

|Baker (I-15)

|Nevada

1989

|105

|128

|Navarro River (SR 1)

|Davis (SR 113)

1996

|1154

|129

|Watsonville (SR 1)

|US 101

1991

|775

|132

|Vernalis (I-580)

|Modesto (SR 99)

|yes

1989

|105

|138

|Gorman (I-5)

|Crestline (SR 18)

|yes, Gorman to Cajon Pass

|yes, Gorman to Pearblossom

1989

|105

|139

|Canby (SR 299)

|Oregon

|yes

1989

|105

|140

|Merced urban

|Yosemite National Park

|yes

1989

|105

|146

|Soledad (US 101)

|Pinnacles National Monument

1998

|877

|146

|Pinnacles National Monument

|Bear Valley (SR 25)

1989

|105

|149

|Wicks Corner (SR 70)

|Chico (SR 99)

|yes

1989

|105

|152

|Gilroy (US 101)

|Sharon (SR 99)

|yes

1989

|105

|154

|Zaca (US 101)

|Santa Barbara (US 101)

1989

|105

|156

|Castroville (SR 1)

|SR 152

|yes

|yes, San Juan Bautista to SR 152

|yes

1989

|105

|160

|Antioch-Pittsburg urban

|Sacramento urban

|yes, Antioch-Pittsburg urban to Rio Vista

1989

|105

|168

|Fresno urban

|Florence Lake Road

1989

|105

|168

|Lake Sabrina

|US 395

1989

|105

|178

|Bakersfield urban

|Freeman (SR 14)

1989

|105

|180

|Fresno urban

|Kings Canyon National Park

|yes

|Caltrans interprets the east end as the east end of SR 180, not General Grant Grove: [http://www.dot.ca.gov/dist6/planning/tcrs/sr180tcr/sr180tcr.pdf]

1996

|1154

|188

|Mexico

|SR 94

|yes

1989

|105

|190

|Porterville (SR 65)

|Death Valley Junction (SR 127)

1989

|105

|198

|I-5

|Sequoia National Park

|yes

|yes, I-5 to Visalia

|yes

1989

|105

|199

|Crescent City (US 101)

|Oregon

|yes

1989

|105

|203

|Minaret Summit

|US 395

1989

|105

|205

|Tracy (I-580)

|Tracy (I-5)

|yes

1989

|105

|207

|Lake Alpine (SR 4)

|Mount Reba Ski Area

1989

|105

|215

|Temecula (I-15)

|Devore (I-15)

|yes

2003

|598

|239

|Tracy (I-580)

|Brentwood (SR 4)

1989

|105

|243

|Mountain Center (SR 74)

|Banning (I-10)

2002

|438

|246

|Lompoc (SR 1)

|US 101

1989

|105

|267

|Truckee (I-80)

|Kings Beach (SR 28)

1989

|105

|299

|Arcata (US 101)

|SR 89

|yes, Arcata to Redding

1989

|105

|299

|SR 139

|Alturas (US 395)

|yes

1989

|105

|330

|SB-Riverside urban

|SR 18

1989

|105

|371

|Aguanga (SR 79)

|Anza (SR 74)

1989

|105

|395

|Cajon Pass (I-15)

|Oregon

|yes

1989

|105

|505

|Vacaville (I-80)

|Dunnigan (I-5)

|yes

1989

|105

|580

|San Rafael (US 101)

|Vernalis (I-5)

|yes

1989

|105

|680

|San Jose (US 101)

|Cordelia (I-80)

|yes

1989

|105

|905

|Mexico

|yes

|yes, I-5 to Mexico

|Except in San Diego urban

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

Map

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