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Chronology
Chronology of California Highways


Phase III: A Significant System is Created (1933-1946)


1933

In 1933, the Legislature amended the State Highway Classification Act of 1927 with Chapter 767 of the 1933 Statutes (PDF, 173 MB), adding 6,700 mi of county roads to the State Highway System (all classified as secondary highways). Highway construction funds were allocated equally between primary and secondary highways. The legislative barrier that prevented state highway funds from being used in urban areas was removed. 1933 also saw the creation of an eleventh district, with headquarters in San Diego.

Note: It is difficult to relate the specific text in the 1933 act with the routings today. Text shown in light purple represents the closest equivalent to current routings, if it could be identified. For more specifics, please visit the appropriate page for the route or LRN in question (information for the LRN is always at the end of a given route's entry page).

LRN First Signage Other Signage Present Route (R) and Signage (S) Action Segment
LRN 2 US 101   CA 135 Reroute Orcutt to [LRN 2] S of Santa Maria
Route 1 near Orcutt to Santa Maria
US 101   CA 135 Reroute Harris to [LRN 2] near Los Alamos
Route 1 near Vandenberg AFB to Los Alamos
LRN 5 CA 8   CA 26 Extend [LRN 4] near Stockton to [LRN 65] near Mokelumne Hill
Route 4 to Mokelumne Hill
LRN 6 CA 37   CA 121, CA 221 Extend ¹[LRN 8] near Napa to Winters via Wooden Valley and Berryessa Valley
Route 29 to Route 128/Route 121 junction
CA 128   CA 128 Extend ²[LRN 8] near Napa to Winters via Wooden Valley and Berryessa Valley
Route 121/Route 128 junction to I-505
LRN 9 CA 118   None Extend ¹[LRN 2] near Montalvo to [LRN 4] near San Fernando
US 101 near Montalvo to Saticoy
Note: This may have been Vicoria and Telephone Road
CA 118   CA 118 Extend ²[LRN 2] near Montalvo to [LRN 4] near San Fernando
Route 232 near Saticoy to I-5 (former US 99) near San Fernando
LRN 11 CA 24   CA 160 Extend Walnut Creek-Stockton Road near Antioch to Sacramento
Antioch to Sacramento
LRN 12 US 80   CA 209 Extend [LRN 2], Atlantic Street, San Diego to old Spanish Lighthouse, Point Loma
Cabrillo National Monument to US 101
LRN 20 CA 44 CA 440 CA 44 Extend [LRN 28] near Redding to Lassen National Park
Redding to Lassen National Park
LRN 22 CA 156   CA 156 Extend Coast Road near Castroville to [LRN 2] near Prunedale
Route 1 near Castroville to US 101
CA 156   CA 156 Extend [LRN 22] near San Juan Bautista to [LRN 2] near The Rocks
US 101 to San Juan Bautista
LRN 24 CA 4
CA 8
CA 88 CA 88 Extend [LRN 23] near Woodfords to the California-Nevada state line
Route 89 to Nevada state line

LRN 25 CA 174   CA 174 Extend [LRN 37] near Colfax to [LRN 17] near Grass Valley
I-80 near Colfax to Route 20 near Grass Valley
CA 49   CA 49 Extend [LRN 25] at Downieville to Blairsden-Truckee Road near Sattley
Downieville to Route 89
LRN 26 US 70 US 99 I-10 Extend Los Angeles (Aliso Street) to [LRN 26] near Monterey Park via Ramona Blvd
US 101 to Monterey Park
LRN 29 CA 36   CA 36 Extend [LRN 35] to [LRN 3] near Red Bluff
Route 3 to I-5 (former US 99)
LRN 31 US 91 US 91 I-15 Extend [LRN 26] near Colton to [LRN 9] near San Bernardino via Mt. Vernon Ave
I-10 to US 66
LRN 32 CA 152   CA 152 Extend Coast Road near Watsonville to [LRN 2] in Santa Clara Valley via Hecker Pass
Route 1 to US 101
LRN 33 CA 41   CA 46 Extend [LRN 56] near Cambria to [LRN 2] near Paso Robles
Route 1 to US 101
LRN 35 CA 36   CA 36 Define [LRN 1] near Alton to [LRN 35] near Kuntz
US 101 near Alton to Peanut (see note)
CA 3   CA 3 Define [LRN 35] near Peanut to [LRN 20] near Douglas City
Peanut to Douglas City
LRN 40 CA 120   None Extend [LRN 23] near Mono Lake to [LRN 76] near Benton Station
US 395 to US 6
LRN 41 CA 180   CA 180 Extend [LRN 4] near Fresno to General Grant National Park
Fresno to General Grant Grove

1[LRN 4] near Fresno to [LRN 5] near Tracy
Route 33 near Mendota to Fresno
CA 33   CA 33 Extend 2[LRN 4] near Fresno to [LRN 5] near Tracy
Route 180 in Mendota to Route 152 near Los Banos
CA 33   None Extend 3[LRN 4] near Fresno to [LRN 5] near Tracy
Route 152 near Los Banos to 6 mi NW of Volta to near the present I-5
CA 33   CA 33 Extend 4[LRN 4] near Fresno to [LRN 5] near Tracy
I-5 (formerly, LRN 121) to Route 140
CA 33   CA 33 Extend 5[LRN 4] near Fresno to [LRN 5] near Tracy
Route 140 to I-5 near Vernalis
CA 33   None Extend 6[LRN 4] near Fresno to [LRN 5] near Tracy
I-5 to I-205
LRN 42 CA 9   CA 9 Extend [LRN 55] near Saratoga Gap to [LRN 5] near Los Gatos
Saratoga to Route 17 in Los Gatos (Original Route 9 signage diverged to LRN 114)
LRN 43 CA 18   CA 18 Extend [LRN 31] from Victorville to [LRN 43] near Big Bear Lake via Baldwin Lake
A highway around Big Bear Lake connecting [LRN 43]
Big Bear Lake (Southern route) to I-15 (US 91)
LRN 47 CA 32   CA 32 Extend [LRN 3] near Chico to [LRN 29] near Deer Creek Meadows
Chico to Route 36
LRN 49 CA 29   CA 29 Extend [LRN 8] near Napa to [LRN 49] near Calistoga
Route 121 in Napa to Route 29 in Calistoga

LRN 50 CA 16   CA 16 Extend [LRN 50] near Rumsey to [LRN 7] near Woodland
Woodland to Sacramento
Rumsey to Sacramento via Woodland
LRN 51 CA 12   CA 12 Extend Sebastopol to [LRN 1] near Santa Rosa
Route 116 near Sebastopol to US 101
LRN 54 CA 16   CA 16 Define [LRN 11] near Perkins to [LRN 54] near Michigan Bar
Sacramento (US 50) to the county line near Michigan Bar
LRN 56 CA 1   CA 1 Extend [LRN 2] near Las Cruces via Lompoc and Guadalupe to [LRN 2] near Pismo
Las Cruces to Pismo Beach
CA 1   CA 1; I-280 Extend [LRN 56] near Carmel to Santa Cruz
Carmel to Santa Cruz

Santa Cruz to San Francisco via Coast
Santa Cruz to US 101 in San Francisco

State Highway near the Southerly end of the Marin Peninsula to the Marin-Sonoma County Line via the Coast Route
US 101 on the Marin Peninsula to Marin-Sonoma County line

Russian River near Jenner to Westport
Jenner to Westport
CA 1   CA 211 Extend Ferndale to [LRN 1] near Fernbridge
Route 1 near Rockport to US 101 near Fernbridge
LRN 58 CA 178   CA 58 Extend [LRN 2] near Santa Margarita to [LRN 4] near Bakersfield
US 101 to Route 99 in Bakersfield
LRN 59 CA 138   CA 138 Extend ¹[LRN 31] near Cajon Pass to [LRN 43] via Lake Arrowhead
I-15 to Route 173
CA 173   CA 173   ¹[LRN 31] near Cajon Pass to [LRN 43] via Lake Arrowhead
Route 173 to Route 18 via Lake Arrowhead
LRN 61 CA 2   None Extend ¹San Fernando Road to [LRN 9] via Verdugo Road
San Fernando Road to Avenue 36 via Eagle Rock Boulevard
Note that this routing was deleted in 1957 (Chapter 1911)
LRN 61 CA 2   CA 2 Extend ²San Fernando Road to [LRN 9] via Verdugo Road
Avenue 36 (Fletcher Dr) in Glendale to I-210 (Route 118)
LRN 61 CA 2   CA 2 Extend [LRN 61] to [LRN 59] via Los Angeles County Park
Route 39 to Route 138
LRN 62 CA 39   CA 39 Extend ¹Huntington Beach-Whitter Road near Buena Park to [LRN 9] near Azuza
US 101 (freeway routing) to Route 72 (former US 101 surface routing)
CA 39   CA 39 Extend ²Huntington Beach-Whitter Road near Buena Park to [LRN 9] near Azuza
Whittier Blvd in La Habra to Azusa
LRN 64 CA 74   CA 74 Extend [LRN 2] near San Juan Capistrano to [LRN 77] near Lake Elsinore
I-5 near San Juan Capistrano to I-15 near Lake Elsinore
CA 740 CA 74 CA 74 Extend [LRN 78] near Perris to [LRN 26] near Indio
I-215 near Perris to I-10 near Thousand Palms
LRN 65 CA 49   CA 49 Extend [LRN 40] near Moccasin Creek to [LRN 18] near Mariposa
Route 140 at Mariposa to Route 120/Route 108 near Moccasin
CA 49   CA 49 Extend [LRN 11] near El Dorado to [LRN 11] near Placerville via Diamond Springs
El Dorado to Placerville
LRN 66 CA 120   CA 120 Extend [LRN 4] near Manteca to [LRN 13] near Oakdale
Route 99 to Route 108 near Oakdale
LRN 67 CA 129   CA 129 Extend [LRN 67] near Chittenden to the Coast Road near Watsonville
Route 129 near Chittenden to Route 1 near Watsonville
LRN 69 CA 17 CA 112, CA 61, CA 260 I-880 Extend San Jose to Richmond (East Shore Highway)
US 101 to I-80 (US 40/US 50)
LRN 73 US 395   US 395 Extend [LRN 28] at Alturas to [LRN 29]
Route 36 to Alturas

LRN 75 CA 21   I-680 Extend 1[LRN 75] near Walnut Creek to [LRN 5] near Stockton via Antioch
Route 24 near Walnut Creek to I-780 near Benecia
CA 24   CA 242 Define 2[LRN 75] near Walnut Creek to [LRN 5] near Stockton via Antioch
I-680 near Pleasant Hill to Route 4 N of Concord
CA 24 CA 4 CA 4 Define 3[LRN 75] near Walnut Creek to [LRN 5] near Stockton via Antioch
Route 242 N of Concord to Antioch
CA 4   CA 4 Define 4[LRN 75] near Walnut Creek to [LRN 5] near Stockton via Antioch
Antioch to Stockton

[LRN 4] near Stockton to [LRN 65] near Altaville
Stockton to Altaville
LRN 76 CA 168   CA 168 Define Fresno-Yosemite Road at Shaw Avenue to Huntington Lake
Route 41 near Fresno to Huntington Lake
CA 168   CA 168 Define [LRN 23] to Camp Sabrina
Camp Sabrina to US 395
LRN 78 CA 79   CA 79 Define ¹[LRN 12] near Descanso to [LRN 77] near Temecula
I-8 to Route 79 near Aguanga
CA 71   CA 79 Define ²[LRN 12] near Descanso to [LRN 77] near Temecula
Route 79 near Aguanga and I-15 near Temecula
LRN 80 CA 150   CA 144 Define ¹[LRN 80] to [LRN 2] via Foothill Road
US 101 to Route 192 via Sycamore Canyon
CA 150   CA 192 Define ²[LRN 80] to [LRN 2] via Foothill Road
Route 154 near Santa Barbara to Route 144
CA 150   CA 192 Define Santa Barbara to Rincon-Santa Paula Road near Ventura-Santa Barbara County Line
Route 144 in Santa Barbara to Route 150 near Rincon
LRN 81 CA 197   CA 197 Define [LRN 71] to [LRN 1] N of Smith River
US 101 to US 199, staying N of the Smith River
LRN 82 CA 3   CA 3 Define Etna Mills to Montague
Etna (near I-5) to Montague
LRN 83 CA 89   CA 89 Define [LRN 3] near Mt. Shasta to Lassen National Park
From I-5 near Mount Shasta to Lassen National Park
CA 89   CA 89 Define Lassen National Park to [LRN 29] at Mineral
Route 89 near Lassen National Park to Route 36 near Deer Creek Pass
CA 36   CA 36
CA 89
Define ²Lassen National Park-Mineral Road to [LRN 29] near Morgan
Route 36/Route 89 junction near Deer Creek Pass to Morgan Springs
CA 89   CA 89 Define [LRN 29] near Deer Creek Pass to [LRN 21] near Indian Falls
Route 36 near Chester to Route 70
US 40A CA 89 CA 89 Define ¹[LRN 21] near Blairsden to [LRN 38] near Truckee
Route 70 to Route 49
CA 89   CA 89 Define ²[LRN 21] near Blairsden to [LRN 38] near Truckee
Route 49 to I-80
LRN 84 CA 96   CA 96 Define [LRN 20] near Willow Creek to [LRN 46] near Weitchpec
US 299 near Willow Creek to Weitchpec
LRN 85 CA 200   CA 200 Define [LRN 1] to [LRN 20] N of Mad River
US 101 to US 299 N of the Mad River
LRN 86 CA 36   CA 36 Define ¹Lassen National Park-Mineral Road to [LRN 29] near Morgan
Route 36 near Mineral to the Route 36/Route 89 junction near Deer Creek Pass
LRN 87 CA 113   CA 113 Define [LRN 7] near Woodland to State Highway near Yuba City
I-5 to Route 99
CA 24 US 40A CA 70 Define [LRN 15] near Marysville to [LRN 21] near Oroville
Route 70/Route 20 junction near Marysville to Route 162 near Oroville
CA 149   CA 149 Define [LRN 3] near Chico to [LRN 21] near Oroville
Route 70 near Wick's Corners to Route 99 near Chico
LRN 88 CA 45   CA 45 Define [LRN 15] near Sycamore to Woodland-Yuba City Road near Knights Landing
Route 113 near Knights Landing to Route 20 near Sycamore
CA 45   CA 45 Define [LRN 45] near Glenn to [LRN 47] near Hamilton City
Route 20 near Colusa to Route 32 near Hamilton City
LRN 89 CA 29   CA 29 Define ¹[LRN 49] near Middletown to [LRN 15] near Upper Lake via Lakeport
Route 20 to Route 175 6 mi NE of Kelseyville
CA 29   CA 29
CA 175
Define ²[LRN 49] near Middletown to [LRN 15] near Upper Lake via Lakeport
Route 29/Route 175 junction 4 mi SE of Kelseyville to Route 29/Route 175 junction 6 mi NW of Kelseyville
CA 29   CA 175 Define ³[LRN 49] near Middletown to [LRN 15] near Upper Lake via Lakeport
Route 29 (S Junction) to Route 29 (Middletown)
LRN 90 I-505   I-505 Define [LRN 7] near Vacaville to [LRN 7] near Dunnigan
I-80 near Vacaville to I-5 near Dunnigan
LRN 91 US 99E CA 193 CA 193 Define [LRN 3] near Lincoln to [LRN 17] near Newcastle
Route 65 near Lincoln to I-80 near Newcastle
LRN 92 CA 153   CA 153 Define [LRN 65] near Coloma to Marshall's Monument
Route 49 near Columa to Marshall's Monument
LRN 93 CA 193   CA 193 Define [LRN 65] near Cool via Georgetown to [LRN 65] near Placerville
Route 49 near Cool to Route 49 near Placerville
LRN 94 CA 188   None Define [LRN 38] near Camp Richardson to S end Fallen Leaf Lake
Route 89 near Camp Richardson to the S end of Fallen Leaf Lake
LRN 95 CA 7   US 395 Define [LRN 23] near Coleville to the California-Nevada state line
Route 89 to Nevada state line near Topaz
LRN 96 CA 182   CA 182 Define [LRN 23] near Bridgeport to the California-Nevada state line via Walker River
US 395 near Bridgeport to the Nevada state line
LRN 97 CA 88   CA 88 Define ¹[LRN 4] near Stockton to [LRN 54] near Waite's Station
Route 99 near Stockton to Route 88/Route 49 junction S of Ione
CA 124   CA 124 Define ²[LRN 4] near Stockton to [LRN 54] near Waite's Station
Route 88 S of Ione to Route 16 near Waits Station
LRN 98 US 50/US 99E   CA 51/R
Business Route 80/S
Define [LRN 4] S of Sacramento to [LRN 3] near Ben Ali
US 50/Route 99 junction to Route 160. H Street Bridge.
LRN 99 CA 84   CA 84 Define [LRN 53] at Rio Vista via Ryer Island to [LRN 6] near Broderick
Route 12 at Rio Vista to US 50

LRN 100 CA 220   CA 220 Define Rio Vista-Broderick Road on Ryer Island to Sacramento-Antioch Road
Route 84 on Ryer Island to Route 160
LRN 101 CA 113   CA 113 Define [LRN 53] to [LRN 7] near Dixon
Route 12 to I-80 near Dixon
LRN 102 CA 128   CA 128 Define Napa-Calistoga Road near Rutherford to Napa-Winters Road via Sage Canyon
Route 29/Route 121/Route 128 junction near Rutherford to Route 121 (Steele Canyon Road)
LRN 103 CA 28   CA 128 Extend Calistoga to [LRN 1] near Geyserville
US 101 near Calistoga to Route 29 near Geyserville
LRN 104 CA 12   CA 116 Define ¹Coast Road near Jenner to [LRN 1] near Cotati
Route 1 to Route 116 near Sebastopol
Unknown   CA 116 Define ²Coast Road near Jenner to [LRN 1] near Cotati
Route 116 near Sebastopol to US 101
Unknown   CA 116 Define [LRN 1] near Petaluma to [LRN 8] near Shellville
US 101 near Petaluma to Route 121 near Shellville
Unknown   I-80 Extend [LRN 8] to [LRN 7] through American Canyon
Route 29 near Vallejo to Route 12 near Cordelia
Note: This segment was replaced by a new routing for LRN 7 in 1935, which filled a previous gap in LRN 7 between Benecia and the N end of the bridge. This was captured in the 1937 code.
LRN 105 CA 92   CA 92 Define Coast Road near Half Moon Bay to [LRN 2] near San Mateo
Route 1 near Half Moon Bay to I-280
CA 92   CA 92 Define San Jose-Richmond East Shore Highway near Mt. Eden to [LRN 5] near Hayward
I-880 to Route 238
CA 17   CA 185 Define Hayward, via Fourteenth Street in San Leandro to Seventh and Cypress Streets in Oakland
Route 238 to Route 77 in Oakland
LRN 106 CA 4   CA 4 Define [LRN 14] near Hercules to the Walnut Creek-Antioch Road
I-80 (former US 40) to Route 242 N of Concord
LRN 107 CA 84   CA 84 Define [LRN 55] to [LRN 2] near Menlo Park
Route 35 to US 101
CA 114   CA 84 Define [LRN 55] to [LRN 2] near Menlo Park
US 101 N of Atherton to Route 84
CA 84   CA 84 Define San Jose-Richmond East Shore Highway near Newark to Walnut Creek-Scotts Corners Road near Sunol
Route 84 near Menlo Park to Route 84 near Sunol
CA 21   I-680 Define [LRN 75] near Walnut Creek to Livermore-San Jose Mission Road near Scotts Corners
Route 84 near Sunol to Route 24 near Walnut Creek
LRN 108 CA 21   I-680 Define ¹[LRN 5] near Mission San Jose to [LRN 5] near Livermore
I-680/Route 238 junction near Irvington to Route 84 near Sunol
CA 84   CA 84 Define ²[LRN 5] near Mission San Jose to [LRN 5] near Livermore
I-680 near Sunol to I-580
LRN 109 CA 108   None Define ¹[LRN 4] at Modesto Northerly to [LRN 13] between Salida and Riverbank
Route 99 to Route 132
CA 108   CA 108 Define ²[LRN 4] at Modesto Northerly to [LRN 13] between Salida and Riverbank
Route 132 to Route 219
LRN 110 CA 132   CA 132 Define Fresno-Tracy West Side Highway to the Sonora-Mariposa Road via Modesto
Route 33 to Route 49
LRN 111 CA 158   CA 158 Define [LRN 23] near Rush Creek via June Lake to [LRN 23]
US 395 near Rush Creek to US 395 (June Lake loop)
LRN 112 CA 203   CA 203 Define [LRN 23] to Mammoth Lakes
Mammoth Lakes to US 395
LRN 113 CA 9 US 101A CA 237 Define [LRN 2] near Mountain View to [LRN 5] near Milpitas
US 101 (former US 101A) to I-680
LRN 114 CA 9 CA 85 CA 85 Define [LRN 68] near Sunnyvale to Los Gatos-Saratoga Gap Road
Saratoga to Route 237/US 101 near Sunnyvale
LRN 115 CA 130   CA 130 Define [LRN 5] near San Jose to Mount Hamilton
US 101 to Mount Hamilton
LRN 116 CA 9   CA 9 Define Santa Cruz to [LRN 42] near Waterman Gap
Santa Cruz to Route 236 near Waterman Gap
LRN 117 CA 68   CA 68 Define Monterey to [LRN 2] near Salinas
Monterey to US 101 near Salinas
LRN 118 CA 183   CA 183 Define [LRN 2] near Salinas to Coast Road near Castroville
US 101 in Salinas to Route 1 near Castroville
LRN 119 CA 25   CA 25 Define ¹State Highway near Gilroy to [LRN 10] in Priest Valley
Route 25 near Paicines to US 101
CA 25 CA 180 CA 25 Define ²State Highway near Gilroy to [LRN 10] in Priest Valley
Route 25 near Paicines to Route 198
LRN 120 CA 146   CA 146 Define [LRN 2] near Soledad to Pinnacles National Monument and Pinnacles National Monument to Hollister-Priest Valley Road in Bear Valley
US 101 to Route 25 in Bear Valley via Pinnacles National Monument
LRN 121 CA 207   CA 33 Define [LRN 32] W of Los Banos to Fresno-Tracy West Side Highway near Centinella
Route 152 W of Los Banos to I-5
LRN 122 CA 140   CA 140 Define Fresno-Tracy West Side Highway near Newman to [LRN 4] near Livingston
Route 33 to Route 99
Note: This route was originally on River Road; the routing was change in 1937 (Chapter 36)
LRN 123 CA 59   CA 59 Define [LRN 4] near Merced southerly to [LRN 32]
Route 152 to Route 99 near Merced
CA 59   CA 59 Define [LRN 4] near Merced to Snelling
Route 99 near Merced to Snelling
LRN 124 CA 233   CA 233 Define [LRN 4] at Chowchilla, via Robertson Boulevard to [LRN 32]
Route 152 to Route 99 at Chowchilla
LRN 125 US 466   CA 41 Define ¹[LRN 56] near Moro to [LRN 4] near Fresno via Stratford
Route 1 to Cholame
CA 41   CA 41 Define ²[LRN 56] near Moro to [LRN 4] near Fresno via Stratford
Cholame and Route 99 near Fresno
CA 41   CA 41 Define [LRN 4] near Fresno to Yosemite National Park
Route 99 near Fresno to Yosemite National Park

LRN 126 CA 145   CA 145 Define Fresno-Tracy West Side Highway near Kerman to [LRN 4] near Madera
Route 180 near Kerman to Route 99

[LRN 4] near Madera to Fresno-Yosemite Road
Route 99 to Route 41
LRN 127 CA 190   CA 190 Define [LRN 4] near Tipton, via Porterville and Camp Nelson to [LRN 23] near Lone Pine
Route 99 to US 395 near Olancha
Note: The short segment of Route 190 between US 395 and Route 136 was defined in 1959.
CA 127   CA 127 Define ¹[LRN 31] to Death Valley and connection to the California-Nevada State Line
Route 127 at Death Valley Junction to I-15
CA 136   CA 136 Define [LRN 23] near Lone Pine to Death Valley
US 395 near Lone Pine to Route 190
LRN 128 CA 127   CA 127 Define ²[LRN 31] to Death Valley and connection to the California-Nevada State Line
Route 127 at Death Valley Junction to the Nevada state line
LRN 129 CA 65   CA 65

County Sign Route J35

Define ¹[LRN 4] near Bakersfield to Fresno-General Grant National Park Road
Route 99 near Bakersfield to Route 198 near Exeter
CA 65 CA 69 CA 245 Define ²[LRN 4] near Bakersfield to Fresno-General Grant National Park Road
Route 198 to Route 180
LRN 130 CA 63   County Sign Route J40 Define Orosi to Bakersfield-General Grant Park Road
Orosi to Route 245
LRN 131 CA 201   CA 201 Define ¹[LRN 4] near Kingsburg to [LRN 10] near Lemoncove
Route 99 near Kingsburg to Route 245 near Elderwood
CA 216   CA 216 Define ²[LRN 4] near Kingsburg to [LRN 10] near Lemoncove
Route 245 near Woodlake to Route 198 near Lemon Cove
LRN 132 CA 63   CA 63 Define ¹Tulare-Lindsay Road near Tulare to Orange Cove
Route 137 near Tulare to Route 198
CA 63   CA 63 Define ²Tulare-Lindsay Road near Tulare to Orange Cove
Route 198 to Orosi
CA 226   CA 63 Define ³Tulare-Lindsay Road near Tulare to Orange Cove
Orosi to Orange Cove
LRN 133 CA 216   CA 216 Define Visalia to Woodlake
Visialia to Route 245 near Woodlake
LRN 134 CA 137   CA 137 Define Corcoran to Lindsay via Tulare
Route 43 at Corcoran to Route 65 at Lindsay
LRN 135 CA 43   County Sign Route J22 Define ²Hanford via Corcoran and Earlimart to Bakersfield-General Grant Park Road near Ducor
Route 65 near Ducor to Avenue 56 near Allensworth
This segment was deleted in 1953, Chapter 1617
CA 43   CA 43 Define ¹Hanford via Corcoran and Earlimart to Bakersfield-General Grant Park Road near Ducor
Avenue 56 near Allensworth to Route 198 near Hanford
LRN 136 CA 211   CA 155 Define ¹[LRN 4] near Delano to Bakersfield-General Grant Park Road
Route 99 to Famoso-Porterville Highway
County Sign Route J35   CA 65 Define ¹[LRN 4] near Delano to Bakersfield-General Grant Park Road
Famoso-Porterville Highway between Route 99 and Ducor
LRN 137 CA 229   CA 229 Define [LRN 2] near Santa Margarita to Moro-Fresno Road near Creston
Route 178 to Santa Margarita to Route 41 near Creston
LRN 138 US 399   CA 33 Define [LRN 2] near Ventura to [LRN 57] in Cuyoma Valley
US 101 in Ventura to Route 166 in Cuyoma Valley
US 399   CA 33 Define ¹[LRN 57] near Maricopa to [LRN 10] near Coalinga
Route 166 near Maricopa to Taft
CA 33   CA 33 Define ²[LRN 57] near Maricopa to [LRN 10] near Coalinga
Route 119 near Taft to Route 198 in Coalinga
LRN 139 CA 43   CA 43 Define Taft-Greenfield Road to [LRN 33] near Wasco
Route 119 to Route 46 in Wasco
LRN 140 US 399   CA 119 Define Taft to [LRN 4] near Greenfield
Route 33 at Taft to Route 99 near Greenfield
    CA 223 Define [LRN 4] S of Bakersfield to [LRN 58] via Arvin
Route 99 S of Bakersfield to Route 58
LRN 141 CA 58   CA 58 or
CA 204
Define [LRN 4] via Brundage Lane and Oak Street to [LRN 4] near Beardsley School
US 99 to US 99 via Brundage Lane and Oak Street
LRN 142 CA 155   None Define ¹[LRN 4] near Bakersfield to [LRN 57] near Isabella via Glennville
Route 99 to Woody via the Bakersfield-Glennville Road
CA 155   CA 155 Define ²[LRN 4] near Bakersfield to [LRN 57] near Isabella via Glennville
Woody to Route 178
LRN 143 CA 184   CA 184 Define Arvin Road near Weed Patch to [LRN 57] near Loma Park
Route 223 near Weed Patch to Route 178
LRN 144 CA 202   CA 202 Define Cummings Valley State Institution to [LRN 58] near Old Town
Route 58 near Tehachapi to the California Correctional Institution (formerly, the Cummings Valley State Institution)
LRN 145 CA 95 US 395 US 395 Define [LRN 31] near Cajon Pass to [LRN 23] near Little Lake
I-15 near Cajon to US 395 near Little Lake
LRN 146 CA 195 US 95 CA 78 Define County Line near Palo Verde to [LRN 64] near Blythe
Palo Verde (Riverside County line) to I-10
US 95   US 95 Define [LRN 64] near Blythe to [LRN 58] near Needles
I-10 to I-40

[LRN 58] W of Needles northerly to the California-Nevada state line
I-40 to the Nevada state line
LRN 147 CA 227   CA 227 Define [LRN 2] near Arroyo Grande to [LRN 2] near San Luis Obispo
US 101 near Arroyo Grande to US 101 near San Luis Obispo
LRN 148 CA 166   CA 166 Define ¹Guadalupe to Sisquoc via Santa Maria
Route 1 to Santa Maria
CA 176   None Define ²Guadalupe to Sisquoc via Santa Maria
Santa Maria to Sisquoc
LRN 149 CA 150 CA 154 CA 246 Define Surf to [LRN 80] near Santa Ynez
Surf to Route 154 near Santa Ynez

LRN 150 CA 225   CA 225 Define [LRN 2] near Montecito to [LRN 2] W of Santa Barbara via the Coast
US 101 near Montecito to US 101 W of Santa Barbara
LRN 151 CA 150   CA 150 Define [LRN 2] near Rincon to [LRN 79] near Santa Paula
Route 192 to Route 126
LRN 152 CA 224   None Define [LRN 2] near Carpinteria to the Carpinteria Beach State Park
US 101 near Carpinteria and the Carpinteria Beach State Park
LRN 153 CA 34   CA 34 Define Hueneme to Montalvo-San Fernando Road near Somis via Oxnard and Camarillo
Port Hueneme to Route 118 near Somis
LRN 154 CA 232   CA 232 Define [LRN 2] near El Rio to Montalvo-San Fernando Road near Saticoy
Route 1 near El Rio to Route 118 near Saticoy
CA 232   CA 118 Define The Montalvo-San Fernando Road near Saticoy to [LRN 79]
Route 118/Route 232 near Saticoy to Route 126
LRN 155 CA 23   CA 23 Define [LRN 60] near Aliso Canyon to [LRN 2] near Triunfo
Route 1 to US 101

[LRN 2] near Newbury Park to [LRN 79] near Fillmore
US 101 to Route 126
LRN 156 CA 27   CA 27 Define [LRN 60] near Topanga Beach to Montalvo-San Fernando Road near Chatsworth
Topanga Beach to Chatsworth
LRN 157 I-210   I-210 Define [LRN 4] near Tunnel Station to [LRN 9] near San Fernando
Route 118 near San Fernando to I-5 near Tunnel Station
LRN 158 CA 7   I-405 Define [LRN 4] near San Fernando to [LRN 60] near Mines Field
San Fernando (I-5) to Culver City (Route 90)
LRN 159 CA 170   CA 170 Define Lankershim Blvd from [LRN 2] near Universal City to [LRN 4]
US 101 near Riverside Drive to I-5 near the Tujunga Wash (former Lankershim Blvd)
LRN 160 CA 170   CA 170 Define Highland Avenue, Los Angeles from Cahuenga Blvd to Santa Monica Blvd
Santa Monica Blvd to US 101
LRN 161 CA 134   CA 134 Define [LRN 2] near Cahuenga Park to [LRN 4] near Burbank
US 101 to I-5
US 66 CA 248 CA 134 Define [LRN 4] near Glendale to [LRN 9] near Monrovia
I-5 to Mountain Avenue E of Monrovia
LRN 162 CA 2 US 66 CA 2 Define ¹[LRN 60] at Santa Monica to Colorado Boulevard near Eagle Rock
Route 1 near Santa Monica to Avenue 36

¹[LRN 60] at Santa Monica to Colorado Boulevard near Eagle Rock
Avenue 36 to Colorado Boulevard via Eagle Rock Boulevard
Note: This second part deleted in 1957, Chapter 1911.
LRN 163 CA 187   None Define Continue Roosevelt Highway from the point where it intersects with Santa Monica Canyon Road at and in Santa Monica to a point where, if so continued, it would intersect with Windward Avenue in Venica, Los Angeles, California. Said road is now commonly known and designated as Ocean Front and parallels the Pacific Ocean a short distance therefrom.
Route 1 near Colorado Avenue in Santa Monica to Venice via Pacific Avenue
LRN 164 CA 7   CA 107 Define [LRN 60] at Torrance via Hawthorne Avenue to Mines Field-San Fernando Road
Culver City to Palos Verdes
LRN 165 CA 11 US 6 I-110
CA 110
Define 1San Pedro to [LRN 9] near La Canada via Figueroa Street
San Pedro to I-5 (former US 6/US 99)
US 66   CA 159 Define 2San Pedro to [LRN 9] near La Canada via Figueroa Street
Figueroa Blvd between I-5 and Route 134
US 66   CA 156 Define 3San Pedro to [LRN 9] near La Canada via Figueroa Street
Linda Vista Avenue between Route 134 and I-210
LRN 166 CA 245   None Define ¹Los Angeles, Indiana and 3rd Streets to the Huntington Beach-Whittier Road near Santa Fe Springs
Route 60 and US 101 along Downey Road
US 101   I-5 Define ²Los Angeles, Indiana and 3rd Streets to the Huntington Beach-Whittier Road near Santa Fe Springs
Indiana Avenue to former Route 42
LRN 167 CA 15 CA 7 I-710 Define Long Beach via Atlantic Boulevard to [LRN 26] near Monterey Park
Long Beach to Monterey Park
LRN 168 CA 19 US 91 CA 19 Define ¹[LRN 60] near Long Beach to [LRN 9] near Lamanda Park
Long Beach to Route 164 in Pico Rivera
CA 164   CA 164 Define ²[LRN 60] near Long Beach to [LRN 9] near Lamanca Park
Route 19 in Pico Rivera to I-210 near Arcadia
LRN 169 Unknown   (none) Define Spring Street to Firestone Boulevard via Somerset Avenue
Spring Street in Long Beach to Firestone Boulevard via Bellflower Boulevard
Note: Routing deleted in 1945 by Chapter 1269
LRN 170 CA 35   I-605 Define Long Beach-Santa Ana Road near Seal Beach via Santa Fe Springs to [LRN 26] near West Covina
Route 22 to I-10
LRN 171 CA 39   CA 39 Define ¹[LRN 60] near Huntington Beach to Whittier
Route 1 to Stage Road near Buena Park
CA 39     Define ²[LRN 60] near Huntington Beach to Whittier
Buena Park to Route 72 in Whittier via Stage Road, Valley View Avenue, Telegraph Road, Los Nietos Road, and Santa Fe Springs Road
This segment deleted in 1951, by Chapter 1562
LRN 172 US 60   CA 60 Define Los Angeles, Boyle Avenue, and 4th Street to [LRN 19] near Walnut Station
Downtown Los Angeles to Route 57
LRN 173 CA 26   I-10 Define [LRN 60] in Santa Monica to the intersection of Ninth and Indiana Streets in Los Angeles via Tenth Street
Route 1 in Santa Monica to I-5 in Los Angeles
LRN 174 CA 10 CA 42 None Define [LRN 60] via Manchester Avenue to [LRN 2] near MirafloresRoute 1 to US 101

[LRN 2] near Orange County Hospital to Main Street, Santa Ana via Santa Ana Boulevard
Western Medical Center, Santa Ana to Santa Ana and Main

LRN 175 CA 14 US 91 CA 91 Define [LRN 60] near Hermosa Beach to [LRN 43] in Santa Ana Canyon via Artesia Ave
Route 1 to Route 55
LRN 176 CA 42   CA 90 Define Buena Park-Azuza Road near La Habra to [LRN 43] in Santa Ana Canyon via Brea
Route 39 to Route 91
LRN 177 CA 142   CA 142 Define Brea to [LRN 77] near Chino
Route 90 near Brea to Route 71 near Chino
LRN 178 US 91 CA 18
Route 214
None Define Cerritos Avenue to [LRN 43] near Olive via Anaheim
Route 19 near Lakewood to US 101 near Anaheim
LRN 179 CA 22   CA 22 Define [LRN 60] near Long Beach to Santa Ana
Route 1 near Long Beach to Route 55 near Orange
LRN 180 CA 250   None Define [LRN 2] near Orange County Hospital northerly to Hermosa Beach-Santa Ana Canyon Road
I-5 to US 91. CA 250 (1964-1981)
LRN 181 Unknown   None Define [LRN 43] to La Habra-Santa Ana Canyon Road near Yorba Linda via Grand Avenue and Glassell Avenue
Route 55 to Route 90 near Yorba Linda via Grand Avenue, Glassell Street, and probably Orange Olive Road, Santa Ana Canyon Road, Tustin Avenue, Jefferson Street, Miraloma Avenue, Richfield Road, and Yorba Linda Boulevard
LRN 182 CA 22   Former (c) of CA 22 Define [LRN 2] near Orange to Orange County Park
Route 55 to Orange County Park
LRN 183 Unknown   None Define [LRN 60] near Seal Beach to [LRN 2] near Santa Ana
Route 1 near Seal Beach to I-5 near Santa Ana via Bolsa Avenue
Note: This was deleted in 1951, Chapter 1562, and a new definition added in 1961.
LRN 184 CA 73   CA 73 Define ¹[LRN 60] near Corona Del Mar to Santa Ana via Main Street
Route 1 near Corona Del Mar to I-405
CA 73   None Define ²[LRN 60] near Corona Del Mar to Santa Ana via Main Street
I-405 to I-5 via Main Street (deleted in 1965)
LRN 185 CA 133   CA 133 Define [LRN 60] near Laguna Beach to [LRN 2] near Irvine
Route 1 near Laguna Beach to I-5
LRN 186 Unknown   None Define [LRN 23] near Palmdale to Swartout Valley
Route 14 near Palmdale to Route 2 near Big Pines
Note: Routing deleted in 1935 (Chapter 426). Routing redefined in 1959
LRN 187 CA 115   None Define [LRN 27] near Holtville to Calexico-Midway Wells Road near Bonds Corner
Route 98 near Bonds Corners to I-8
CA 115   CA 115 Define [LRN 26] near Brawley to [LRN 27] near Holtville
I-8 SE of Holtville to Route 78
CA 111   CA 111 Define [LRN 26] near Indio via Mecca to [LRN 26] near Brawley via the N shore of the Salton Sea
Route 78 near Brawley to Route 86 near Indio
CA 111   CA 111 Define [LRN 26] near Whitewater to Perris-Indio Road near Indian Wells
I-10 near Indio to I-10 near Whitewater
CA 62   CA 62 Define [LRN 26] near Whitewater to Morongo Valley
I-10 near Whitewater to Morongo Valley
LRN 188 CA 138   CA 138 Define [LRN 43] near Mr. Anderson to the Cajon Pass-Lake Arrowhead RoadRoute 173 to Route 18
LRN 189 CA 189   CA 189 Define [LRN 43] near Strawberry Peak via Strawberry Flat to the Cajon Pass-Lake Arrowhead Road near Lake ArrowheadRoute 18 near Strawberry Peak to Route 173 near Lake Arrowhead
LRN 190 CA 30   CA 30 Define ¹[LRN 9] near San Dimas to [LRN 26] near Redlands via Highland Avenue
I-210 near San Dimas to Route 330 near Redlands
CA 106   CA 30 Define ²[LRN 9] near San Dimas to [LRN 26] near Redlands via Highland Avenue
Route 330 near Redlands to Route 38 near Redlands
CA 38   CA 30 Define ³[LRN 9] near San Dimas to [LRN 26] near Redlands via Highland Avenue
Route 38 near Redlands to I-10
CA 38   CA 38 Define [LRN 26] near Redlands to [LRN 43] near Big Bear Lake via Barton Flats
Route 30 near Redlands to Route 18 near Baldwin Lake
LRN 191 CA 206   CA 206 Define [LRN 31] near Verdemont to Highland Avenue, San Bernardino, via Little Mountain
I-215 near Verdemont to Route 30 in San Bernadino
LRN 192 CA 83   CA 83 Define [LRN 77] via Euclid Avenue to Highland Avenue in Upland
Route 71 to Route 30 near Upland
LRN 193 CA 31   I-15 Define [LRN 77] near Prado to [LRN 9] near San Bernardino
Route 91 near Corona to Route 66 (N of I-10)
LRN 194 CA 79   County Route R3 Define The Descanso-Temecula Road near Aguanga to Hemet
Route 79 near Aguanga to Route 74 near Hemet via Sage
CA 79   CA 79 Define Hemet to [LRN 19] near Moreno
Route 74 near Hemet to US 60 9 mi W of Beaumont
LRN 195 CA 76   CA 76 Define [LRN 2] near Oceanside to Descanso-Temecula Road near Lake Henshaw
I-5 near Oceanside to Route 79 near Lake Henshaw
LRN 196 CA 78   CA 78 Define [LRN 2] near Oceanside to [LRN 77] near Vista
I-5 to I-15 near Escondido
LRN 197 CA 78   CA 78 Define [LRN 77] near Escondido to El Cajon-Santa Ysabel Road near RamonaI-15 near Escondido to Route 67 near Ramona
LRN 198 CA 125   CA 125 Define San Diego-Campo Road near Spring Valley to [LRN 12] near La Mesa
Route 94 to I-8 near La Mesa
CA 67   CA 67 Define [LRN 12] near El Cajon to the Descanso-Temecula Road near Santa Ysabel
I-8 near El Cajon to Route 78 near Ramona
CA 78   CA 78 Define Julian to [LRN 26] near Kane Springs
Route 78 near Ramona to Route 86 near Brawley
LRN 199 CA 75   CA 75 Define ¹San Diego-Coronado Ferry in Coronado to [LRN 2] via Silver Strand
I-5 (S junction) to the San Diego-Coronado Ferry
CA 75   CA 75 Define ²San Diego-Coronado Ferry in Coronado to [LRN 2] via Silver Strand
San Diego-Coronado Ferry to I-5 (N junction)

LRN 200 CA 94   CA 94 Define [LRN 2] near San Diego to [LRN 12] W of Jacumba via Campo
I-5 near San Diego to I-8 W of Jacumba
LRN 201 CA 111   CA 111 Define From a point on [LRN 26] approximately 2 mi W of Brawley to a point on said [LRN 26] approximately 2½ mi SW of Brawley
Route 86 E of Haber to Route 78 near Brawley
CA 115   CA 115 Define Calipatria to Brawley-Holtville Road
Route 78 to Route 111 at Calipatria
LRN 202 CA 98   CA 98 Define [LRN 12] near Seeley to [LRN 26] near Calexico
[LRN 26] near Calexico to [LRN 27] near Midway Wells
I-8 near Coyote Wells to I-8 via Calexico
Note: the routing used Drew Road north to Seeley until 1953 (Chapter 1793)

1934

In 1934, the state began numbering non-Federal Highways with a "bear shield", shaped like a miner's spade and displaying a grizzly bear above the number. Signage was still done by the CSAA and ACSC.


1935

In 1935, Chapter 29 established the Streets & Highway Code.

The 1935 legislation also appears to have repealed a number of previously approved highways:

Most of the repeals were of authorizations for surveys; the routing was were actually added into the system at some point. Generally, Chapter 29 established the new highway system and repealed all the Chapters that explicitly established old routings and the previous incarnations of the highway department.

The following new highways and changes were made in the 1935 legislation (PDF, 140 MB). Please see the pages for an individual route or LRN to see the specifics of how the route was established in 1935 and the changes thereafter.

LRN First Signage Other Signage Present Route (R) and Signage (S) Action Segment
LRN 4 US 99   I-5 New Routing Route 14 near Tunnel Station (former US 6) to Route 126 (Chapter 274)
LRN 7 US 40   I-80 New Routing Change the definition to close a gap between the segments between Vallejo and Benecia.
(Chapter 274)
LRN 23 CA 7 US 6
US 395
CA 14
US 395
Extend Simplify definition: From Los Angeles to [LRN 11] near Osgood's Place in El Dorado County near Meyer's Station, via Saugus and Antelope Valley, Independence, in Los Angeles County, Bridgeport, and in Mono County, Loupe, Mount Bullion, Markleevilleand Pickett's (in Hope Valley) in Alpine County." This had the effect of transferring the former LRN 4 routing from US 99/Route 14 near Tunnel Station to Route 126 transferred to LRN 23.
(Chapter 274)
LRN 48 CA 128   CA 128 Reword Change origin from original definition: "[LRN 1] at Cloverdale via at McDonald's"
(Chapter 274)
LRN 58 US 66   I-50 Extend Add "together with an extension from a point on such [LRN 58] near Needles easterly by the most direct and practicable route to the Arizona-California line at the Colorado River, including a bridge over and across said river to be constructed, owned, operated, and maintained jointly with the state of Arizona"
(Chapter 513)
LRN 62 CA 39   CA 39 Divide Divide the original segment (a) into two parts: (a) [LRN 171] near Buena Park to Los Angeles-Orange County Line near La Habra; (b) [LRN 26] near West Covina to [LRN 9] near Azuza
(Chapter 626)
LRN 64 US 70 US 60 I-10 Clarify Change last segment to "A point near Shaver's Summit on that portion..."
(Chapter 274)
LRN 74 CA 29 I-680 I-780 Extend Extend route to Cordelia via Benecia, making the definition: “A point on [LRN 8] near the Napa Y to Cordelia via Vallejo and Benecia” (i.e., I-780/I-680 junction near Benecia to I-80 (US 40)
(Chapter 274)
LRN 77 CA 60 US 60 CA 60 Extend “603. […] a new route or portion of route from the east city limits of Los Angeles on Valley Boulevard to [LRN 26] near El Monte via Valley Boulevard and Pomona Boulevard”
(Chapter 626)
LRN 107 CA 84
CA 21
  CA 84
I-680
Extend Change (c) to "[LRN 68] near Redwood City to [LRN 55] via Woodside."
(Chapter 427)
LRN 163     CA 187 Redefine "[LRN 60] in Santa Monica, at the point where [LRN 60] leaves the ocean, to Windward Avenue in Venice via a road commonly known and designated as Ocean Park"
(Chapter 29)

"[LRN 60] in Santa Monica, a a point southerly of the westerly extension of Wilshire Boulevard in Santa Monica to Windward Avenue in Venice via Prominade in Santa Monica and Ocean Front Walk in the City of Los Angeles"
(Redefined by Chapter 274)

LRN 165 US 6
US 66
CA 11
CA 159
CA 110
I-110
Clarify "San Pedro to [LRN 9] near La Canada via Figueroa Street"
(Chapter 29)

Add routing information: "…via Figueroa Street and Linda Vista Avenue"
(Chapter 274)

LRN 193 CA 31   I-15 Extend "[LRN 77] near Prado to [LRN 9] near San Bernardino"
(Chapter 29)

Truncate: "[LRN 43] at Corona northerly to [LRN 19]"
(Chapter 493)

LRN 203 CA 195   CA 195 Define “...from [LRN 26] near Oasis N-ly to Avenue 66 via Pierce Street.”
Note: Route added in 1935 with no number. Route deleted and redefined as LRN 203 in 1937
(Chapter 429)
LRN 204 CA 231   CA 195 Define “a new route or portion of route from Mecca to [LRN 26] via Avenue 66 and...”
Note: Route added in 1935 with no number. Route deleted and redefined as LRN 204 in 1937
(Chapter 429)
LRN 205 CA 11 US 66 CA 110 Define “from [LRN 165] near Los Angeles River in Los Angeles to [LRN 161] in Pasadena at Broadway Avenue”
Note: Route added in 1935 with no number. Route deleted and redefined as LRN 205 in 1937
(Chapter 426)
LRN 206 CA 24   CA 13 Define “From [LRN 69] to [LRN 75] via Ashby Avenue”
Note: Route added in 1935 with no number. Route deleted and redefined as LRN 206 in 1937
(Chapter 630)

Notes:


1936

The San Francisco–Oakland Bay Bridge opened to traffic. The bridge represented a remarkable engineering and political achievement.


1937

1937 saw the completion of the Golden Gate Bridge. Note that this bridge is not part of the state highway system; it was designed, constructed, maintained, and is still owned, by the Golden Gate Bridge, Highway, and Transportation District. The year also the completion of what became Route 1, also known as the Pacific Coast Highway. The route served /serves as an important tourist and commercial corridor. This is was California’s first complete north-south highway.

The 1937 Statutes (PDF, 163.5 MB) made the following changes:

LRN First Signage Other Signage Present Route (R) and Signage (S) Action Segment
LRN 4 US 99 US 6 US 99 Reroute Change (b) to “to [LRN 23] near Newhall via Saugus”
(Chapter 194)
LRN 8 CA 48 CA 37
CA 12
CA 29
CA 121
CA 221
Clarify Changed "Cordelia" to "[LRN 7] near Cordelia"
(Chapter 841)
LRN 40 CA 120   CA 120 Clarify Remove reference to "Tioga Mine"
(Chapter 841)
LRN 44 CA 9   CA 269 Reword Simplify definition to "[LRN 116] near Boulder Creek to [LRN 42] at Governor's Camp in the California Redwood Park"
(Chapter 841)
LRN 51 CA 12   CA 12 Extend Change terminus from Shellville to Sears Point
(Chapter 841)
LRN 61 CA 2   CA 2 Clarify Change "at La Canada" to "near La Canada".
(Chapter 841)
LRN 68 Bypass US 101   US 101 Clarify Add to the Bay Bridge paragraph wording including “both Harrison and Bryant Street from 10th Street to 5th Street in the City and County of San Francisco”.
(Chapter 48)

Change "10th" to "Tenth" and "5th" to "Fifth".
(Chapter 841)

LRN 69 CA 17   I-880
I-80
Clarify Change the Berkeley approach to be "the north and south portions of the one which starts at a point on the westerly side of Ninth Street in the vicinity of Ashby Avenue in Berkeley"
(Chapter 841)
LRN 77 CA 60 US 60 CA 60 Redefine Repeal Section 603 (the unnumbered segment added in 1935) and add that segment to [LRN 77] as segment (a) instead, numbering the original 1935 segment as (b).
(Chapter 841)
LRN 104 CA 116   CA 116 Redefine Reflect new routing for LRN 7 that obviated the need for (c), and redefine (b): "(b) [LRN 1] near Petaluma to [LRN 8] near Napa Y; (c)"
(Chapter 841)
LRN 122 CA 140   CA 140 Reroute Move the routing away from River Road, making it "[LRN 41] at Gustine to [LRN 4] near Merced via the John C. Fremont Ford Road".
(Chapter 36)
LRN 124 US 466   CA 41 Clarify Remove the explict routing via Stratford and fix some spellings in segment (a), giving "[LRN 56] near Morro to [LRN 4] near Fresno"
(Chapter 841)
LRN 163 CA 187   CA 187 Reword Reword: "[LRN 60] at a point near Colorado Avenue in Santa Monica to a connection with Windward Avenue in the city of Los Angeles"
(Chapter 50)
LRN 203 CA 195   CA 195 Number Delete the 1935 definition and recreate it as LRN 203, with the same definition.
(Chapter 841)
LRN 204 CA 231   CA 195 Number Delete the 1935 definition, and recreate it as LRN 204, with the same routing.
(Chapter 841)
LRN 205 CA 11 US 66 CA 110
I-110
Number Delete the 1935 definition, and recreate it as LRN 205, with the same routing.
(Chapter 841)
LRN 206 CA 13   CA 13
CA 24
Number Delete the 1935 definition, and recreate it as LRN 206, adding the San Francisco-Oakland Bay Bridge approach: "[LRN 69], the East Shore Highway, to [LRN 75] via Ashby Avenue, including that portion of the San Francisco-Oakland Bay Bridge approaches (on the Alameda County end) not included in [LRN 5] and [LRN 69]"
(Chapter 841)
LRN 207 CA 30   CA 330 Define “From [LRN 190] near Highland NE-ly to [LRN 43], also from a point on said highway [LRN 43] near where it crosses Deep Creek, thence NE-ly to and connecting with Forest Service North Side Road in Green Valley”
Note: Route number assigned in 1939.
(Chapter 15)

1939

In 1939, the "Freeway Law," sponsored by state senator Arthur H. Breed, Jr., is passed by the state legislature. This act allows the construction of highways along which adjacent property owners do not have rights of access, and gives the state broad powers of land acquisition for the construction of freeways. It also requires the state to reach an agreement with local governments before streets can be closed for the construction of a freeway. This clause gives cities and counties considerable leverage regarding freeway design and location.

Within two weeks of the passage of the Freeway Law, the California Highway Commission approved the first group of freeway declarations involving thirty-four miles of highways. Among these was the Arroyo Seco Parkway, for which construction started in 1936.

1939 also saw the completion of a Statewide Highway Planning survey. The focus was on the rural state highway system. It inventoried the system, and presented traffic data to justify the contention that much of the system was deficient in terms of meeting current traffic needs. It also reported that 47% of the system was still not surfaced, many roads were becoming worn out, and hundreds of bridges suffered from structural deficiencies.

The 1939 Statutes (PDF, 162.7 MB) made the following changes:

LRN First Signage Other Signage Present Route (R) and Signage (S) Action Segment
LRN 4 US 99 US 6 I-5 Reroute Delete segment (b) (although this was captured in the extension of [LRN 79])
(Chapter 473)
LRN 6 US 40   I-80 Clarify Change "Woodland Junction" to "[LRN 7]".
(Chapter 473)
LRN 16 Unknown   CA 175 Clarify Change "Hopland" to "[LRN 1]"
(Chapter 473)
LRN 38 Route 89 US 40   Route 89
I-80
Change "Meyer's Station" to "May's Junction"
(Chapter 473)
LRN 65 CA 49   CA 49 Combine Combine the first two segments into one, and added Diamond Springs as one of the "vias".
(Chapter 473)
LRN 79 CA 126   CA 126 Extend Extend east along the former [LRN 4] routing to terminate at "[LRN 23] via Castaic Junction and Saugus".
(Chapter 473)
LRN 104 CA 116   CA 116 Clarify Change terminus of (b) back to Shellville.
(Chapter 473)
LRN 207 CA 30   CA 330 Number Delete the 1937 definition, and recreate it as LRN 207, with the same routing.
(Chapter 473)
LRN 208 CA 48   CA 37 Define Define: "[LRN 8] near Sears Point to [LRN 7] near Lake Chabot."
(Chapter 473)
LRN 209 CA 151   CA 151 Define Define: “[LRN 3] near Station 398, according to the survey of said [LRN 3], Section B, to Shasta Summit near Summit City”
Note: Route number assigned in 1943.
(Chapter 794)
LRN 210 CA 139   CA 139 Define Define: “[LRN 28] near Canby to the Oregon State Line near Merrill” to the state highway system, provided that the United States Government, through its agencies the Bureau of Public Roads and Forest Service construct or reconstruct [the highway] with highway funds or any other funds made available by congress for highway purposes within the state of California. No number was assigned.US 299 to the Oregon state line
Note: Route number assigned in 1943.
(Chapter 338)

Note: The California Legislature appears to have skipped from LRN 210 (route defined in 1939, number assigned in 1943) directly to LRN 221. Some route numbers were backfilled by later legislation (LRN 212 in 1947, LRN 213 in 1947, LRN 214 in 1949, LRN 216 in 1959 and LRN 218 in 1961), but not all numbers were used.


1940

On December 30, 1940, the first freeway in the Western United States opened—the Arroyo Seco Parkway, now the Pasadena Freeway, Route 110. This project marked the beginning of the freeway era in the Golden State.


1941

The Defense Highway Act of 1941 was passed by Congress. This gave the highest priority for highway construction to the Defense Highway System as approved by the Secretary of War. Approximately $1,000,000 was approved for California Defense Highways. However, highway construction was limited to plant access roads, defense highways, and projects deemed essential to the defense effort.

The implementation of gasoline rationing in Demember 1941 resulted in a sharp decline in gasoline tax revenues (up to 50%).

A Rural Highway Needs survey was completed. This indicated that the state highway system was underfinanced, 65% of the mileage did not meet current design standards, and that projected traffic increases were expected to result in an additional 800 miles of roads being classified as inadequate by 1950. It estimated that it would take upwards of $443 million to bring the rural system to current standards.

The 1941 Statutes (PDF, 153.9 MB) made the following changes:

LRN First Signage Other Signage Present Route (R) and Signage (S) Action Segment
LRN 166 US 101   (former) CA 245
I-5
Reroute Change endpoints: "[LRN 172] at the intersection of Downey Road Indiana and Third Streets, in Los Angeles, to LRN 174 near Norwalk [LRN 171] near Sante Fe Springs".
(Chapter 142)
LRN 207 CA 30   CA 330 Truncate Remove the northern branch of the route.
(Chapter 142)

1943

In 1943, the legislature appropriated $12,000,000 for surveys and the preparation of plans and specifications, in anticipation of a post-war highway construction boom.

The 1943 Statutes (PDF, 173.1 MB) made the following changes:

LRN First Signage Other Signage Present Route (R) and Signage (S) Action Segment
LRN 18 CA 140   CA 140 Truncate Delete segment (b): "[LRN 40] to the Yosemite National Park Boundary at Crane Flat."
(Chapter 964)
LRN 56 CA 1   CA 1 Other Permit the commission and the department "to abandon and relocate any portion or portions of [LRN 56] as now established and laid out between the intersection of [LRN 56] and [LRN 55] south of San Francisco and the town of Farallon City in San Mateo County and to take any and all action necessary for such abandonment and relocation. Such abandonment may be effected prior to relocation and pending relocation the commission and the department may adopt and maintain any traversable road around the portion or portions so abandoned."
(Chapter 661)
LRN 173 CA 26   I-10 Clarify Change terminus: "… to the intersection of Ninth and Indiana Streets in Los Angeles via Tenth Street [LRN 166] near Downey Road". This terminus was former Route 245.
(Chapter 964)
LRN 209 CA 151   CA 151 Number Amend the 1939 definition to specify this as LRN 209.
(Chapter 964)
LRN 210 CA 139   CA 139 Number Repeal the 1939 definition and add the route, with the same routing, as LRN 210.
(Chapter 964)

1944

In 1944, the California Highway Commission recommended a major post-war highway construction program of 145 individual projects, at an estimated cost of $80,000,000.

Also in 1944, Congress passed the the Federal Aid Highway Act of 1944.

The following is a good map of the routings in Los Angeles at this time:

1944 Map


1945

The following changes were made by the 1945 statutes (PDF, 146 MB):

LRN First Signage Other Signage Present Route (R) and Signage (S) Action Segment
LRN 2 US 101   US 101 Change Change northern end of segment (a) to be the Golden Gate Approach: “(a) The junction of [LRN 56] (Funston Approach) and the approach to the Golden Gate Bridge in the Presidio of San Francisco to the international...”
(Chapter 1214)
LRN 62 CA 39   CA 39 Extend Reunify segments (a) and (b) to create the original 1935 definition: [LRN 171] near Buena Park to [LRN 9] near Azuza
(Chapter 1269)

<-Phase II: Early Growth (1915-1932) -> Phase IV: Building the Freeway System (1947-1962))

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