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California Highways:
www.cahighways.org

Chronology of California Highways

Phase VI: A Final Spurt (1970-1996)

1970

In 1970, the California Environmental Quality Act was passed. This added an environmental planning function to the design, construction, and maintenance efforts. Also in 1970 the Office of Transportation Planning and Research was created. Additionally, on April 20, the first high-occupancy vehicle lane opened. It was a one-half mile, peak-period, westbound bus lane through the San Francisco–Oakland Bay Bridge toll plaza

1970 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 33	LRN 41	CA 33	(none)	Delete	Change segment (d) to "~~Route 152~~ Route 5 near Santa Nella to Route 140", deleting the portion from Route 152 to I-5 (Ingomar Grade and Henry Miller Road). Split (e) into "(e) Route 140 to Route 5 near Vernalis. (f) Route 5 near Vernalis to Route 205 near Tracy." Add a condition to (f). (Chapter 1473)
CA 62	(new routing)		CA 62	Extend	Extend to the Arizona state line near Earp via Morongo Valley, the vicinity of Yucca Valley, Twentynine Palms, Rice, and Vidal Junction. (Chapter 1473)
CA 65	LRN 3		CA 65	Extend	Extend (c) to "Route 80 near Roseville to Route 70 near Marysville"; add (d), "Route 70 near Marysville to Route 99 in or near Yuba City." (Chapter 1473)
CA 87	LRN 289	CA 87	CA 87	Reword	Truncated segment (b) to terminate at Route 238 (instead of Route 230) and delete (c).
	LRN 289	CA 87	(none)	Delete	Route 230 S of San Francisco (near US 101) to Route 237 (Chapter 1473)
	LRN 289	CA 87	CA 230	Transfer	To CA 230: Route 230 to I-280 (Chapter 1473)
CA 104			CA 104	Define	"(b) Route 88 W of Martell to Route 88 SW of Pine Grove via the vicinity of Sutter Hill" (Chapter 1473)
CA 104		CA 104	CA 26	Define	(b) Route 88 southwest of Pioneer Station to Route 26 near West Point. (Chapter 1473)
CA 145			CA 145	Extend	Extend (a) from I-5 to Route 180 near Kerman: "(a) Route 5 near Oilfields ~~Route 180 near Kerman~~ to Route 99 near Madera, passing near Five Points and Kerman". (Chapter 1473)
CA 162		Temp US 40	CA 162	Extend	Add (d): "(d) Route 70 near Oroville to Foreman Creek Road via the Bidwell Bar Bridge." (Chapter 1473)
CA 165			CA 165	Define	I-5 S of Los Banos to Route 99 near Turlock (Chapter 1473)
CA 230	LRN 289 LRN 253		CA 230	Extend	Extend the routing by transfer from Route 87: “…to Route 280 in San Francisco.” (Chapter 1473)
CA 243			CA 243	Define	Redefine: “Route 74 near Mountain Center to Route 10 near Banning.” (Chapter 1473)
CA 247	LRN 187		CA 247	Extend	Split route and add (b): “(b) Route 18 near Lucerne Valley to Route 15 near Barstow.” (Chapter 1473)
CA 255	(none)		CA 255	Extend	Extend - Samoa Peninsula to US 101 in Arcata: “Route 101 in Eureka ~~across Humboldt Bay to the Samoa Peninsula~~ to Route 101 near Arcata via the Humboldt Bay Bridge and the Samoa Peninsula” (Chapter 881, 1473)
CA 268	(none)		(none)	Delete	Delete route: Route 27 to I-405 via Mulholland Drive (Chapter 1473)
CA 270	(none)		CA 270	Define	Define: “Route 395 south of Bridgeport to Bodie State Historic Park.” (Chapter 1473)
CA 271	LRN 1		CA 271	Define	Define: “Route 101 near Cummings to Route 101 near the Humboldt-Mendocino county line.” (Chapter 1473)
CA 281	(none)		CA 281	Define	Define: “Route 29 south of Lakeport to Route 29 southerly of Konocti Bay and via the vicinity of Soda Bay.” (Chapter 1473)
CA 283	LRN 1	US 101	CA 283	Define	Define: “Route 101 south of Rio Dell to the north end of the Eel River Bridge and Overhead in Rio Dell.” (Chapter 1473)
CA 284	(none)		CA 284	Define	Define: “Route 70 at Chilcoot to Frenchman Reservoir.” (Chapter 1473)
CA 285	(none)		CA 285	Define	Define: “Route 70 on West Street in Portola northwesterly to the north city limits, then to Lake Davis via Humbug Canyon, and then easterly to Grizzly Reservoir via the south shore of the lake.” (Chapter 1473)
I-380	LRN 229	CA 186	I-380	Truncate	Delete segment (c): "Route 101 in the vicinity of the San Francisco International Airport to Route 87" (Chapter 1473)

1971

California’s first traffic management center in was established in Los Angeles. The 42-mile surveillance loop included the Santa Monica, San Diego, and Harbor freeways. This was a significant milestone in developing a fully-automated traffic management system and included elements such as underground loop detectors and ramp metering. The passage of the Transportation Development Act extended the state's retail sales tax to include gasoline, and provided for a portion of that revenue to be returned to local governments for transportation. This provided a significant new source of revenue for local transportation facilities, in particular, for transit.

1971 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 170	LRN 160		CA 170	Truncate	Split (a): "(a) Los Angeles International Airport to Route 90. (b) Route 2 to Route 101 in Los Angeles." (Chapter 1398)

1972

In 1972, AB 69 was passed (effective in 1973), which reorganized the Department of Public Works and the Department of Aeronautics into a new Department of Transportation (Caltrans), with six functional and modal divisions: Highways, Mass Transportation, Aeronautics, Transportation Planning, Legal, and Administrative Services. The legislation also required Caltrans to prepare a California Transportation Plan, based on input from regional planning agencies and overall state objectives. Between 1975 and 1977, three draft plans were prepared and rejected by the public and/or the legislature. This was a significant shift, as the focus now moved from just highways to multiple modes of transportation, and from a central planning agency to regional agencies.

1972 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
I-8		CA 109	I-8	Transfer	From CA 109: “(a) Sunset Cliffs Boulevard to Route 5 in San Diego.” (Chapter 1216)
CA 30		CA 106	CA 30	Transfer	From CA 30: I-10 near Redlands to Route 30 near Highland (Chapter 1216)
CA 30		CA 30	CA 330	Transfer	To CA 330: Route 30 near Highland to Route 18 (Chapter 1216)
CA 32	LRN 47		CA 32	Clarify	Change terminus to "Route 99 near Chico". (Chapter 1216)
CA 33	LRN 41	CA 33 CA 207	CA 33	Transfer	From CA 207: Segment (d) Route 152 W of Los Banos to I-5 near Santa Nella (Chapter 1216)
CA 49		CA 49	CA 193	Transfer	To CA 193: Route 49 near Cool to US 50. This required no change in the wording of Route 49. (Chapter 1216)
CA 69	LRN 129	CA 69	CA 245	Transfer	To CA 245: Entire route (Chapter 1216)
CA 78	LRN 197 LRN 198		CA 78	Simplify	Simplify routing: “Route 15 near Escondido to Route 86 ~~near Kane Springs~~ passing near Ramona, ~~and~~ Santa Ysabel, and ~~via~~ Julian.” (Chapter 1216)
CA 98	LRN 202		CA 98	Simplify	Relax terminus to be "Route 8 via Calexico." (Chapter 1216)
CA 106		CA 106	CA 30	Transfer	To CA 30: Entire routing, I-10 near Redlands to Route 30 near Highland (Chapter 1216)
CA 109	LRN 289	CA 109	I-8	Transfer	Transfer route to I-8: “Sunset Cliffs Blvd to I-5 ” (Chapter 1216)
CA 111	LRN 26 LRN 201 LRN 187		CA 111	Extend	Extend (a) south to change the origin to "The international boundary south of Calexico". Extend (b) north, changing the terminus to "Route 86 near Mecca via the north shore of the Salton Sea." (Chapter 1216)
CA 115	LRN 187, LRN 27	CA 115	(none)	Delete	Delete (a) [Route 98 near Bonds Corners to I-8] and changed the origin of (b): (a) Route 8 southeasterly of Holtville to Route 78. This reflected relocation of a portion of this route to a former alignment of Route 8. This former part (a) was once US 80. (Chapter 742)
CA 117		CA 117	I-905	Define	"The international boundary near Borderfield northeasterly to Route 5." (Chapter 1216)
CA 122	LRN 266		CA 122	Split	Split the route: "(a) Route 14 south of Palmdale to Route 138. (b) Route 138 northeasterly to Route 58." (Chapter 1216)
CA 125	LRN 282	CA 125	I-905	Add	Add segment from Mexico national boundary to Brown Field, making (a): "The international boundary southerly of Brown Field to...". (Chapter 1216)
CA 142	LRN 177		CA 142	Reword	In (a): Change "Route 42" to "Route 90". (Chapter 1216)
CA 157	LRN 285		(none)	Relax	Relax routing: "Route 805 near San Diego ~~and south of Route 94~~ to Route 125 near Sweetwater Reservoir." (Chapter 1216)
CA 162			CA 162	Extend	Transfer (a) from Route 261: "(a) Route 101 near Longvale to Route 5 near Willows via the vicinity of Covelo and Mendocino Pass." (Chapter 1216)
CA 174	LRN 25		CA 174	Clarify	Change "Route 49" to "Route 20". (Chapter 1216)
CA 177			CA 177	Define	I-10 near Desert Center to Route 62 near Granite Pass (Chapter 1216)
CA 186			CA 186	Define	Redefine: "From the international boundary near Algodones to Route 8. " (Chapter 742, 1216)
CA 188			CA 188	Define	Define: "the international boundary near Tecate to Route 94." (Chapter 1216)
CA 193	LRN 93		CA 193	Transfer	Change terminus of (b): "…to ~~Route 49~~ Route 50 near Placerville via Georgetown." [Transfer from Route 49.] (Chapter 1216)
CA 195	LRN 203 LRN 204 LRN 64		CA 195	Truncate	Delete between Route 111 and Route 10, and add sunset condition: "Route 86 near Oasis to ~~Route 10 near Shaver's Summit~~ Route 111 near Mecca via Pierce Street and Avenue 66 ~~and Mecca~~. This route shall cease to be a state highway when Route 86 Freeway is constructed from near Oasis to Route 10." (Chapter 1216)
CA 201	LRN 131		CA 201	Clarify	Change "Route 69" to "Route 245". (Chapter 1216)
CA 207	LRN 41	CA 207	CA 33	Transfer	To CA 33: Entire route, Route 152 W of Los Banos to I-5 near Santa Nella (Chapter 1216)
CA 231	LRN 204		(none)	Delete	Delete routing (Route 86 to Route 195 near Mecca via Avenue 66) (Chapter 1216)
CA 241	LRN 223		(none)	Delete	Delete routing: US 101 near Division Street to Route 1, along Oak and Fell Streets and through Golden Gate Park (Chapter 1216)
CA 245	LRN 129	CA 69	CA 245	Transfer	Redefine: “Route 198 to Route 180 near the General Grant Grove section of Kings Canyon National Park.” This route was created as a renumbering of former Route 69. (Chapter 1216)
CA 261	(none)	CA 261	CA 162	Transfer	Delete routing and transfer to Route 162: US 101 near Longvale to I-5 near Willows (Chapter 1216)
CA 263	LRN 3	CA 96 US 99 I-5	CA 263	Reword	Swap endpoints: “Route 5 near the north city limits of Yreka northeasterly to Route 96 near the confluence of the Shasta and Klamath Rivers.” (Chapter 1216)
CA 269	(none)		CA 269	Define	Define: “Route 33 at Avenal to Route 145 near Five Points.” (Chapter 748)
CA 275	LRN 6	CA 275 US 99W US 40	(none)	Clarify	Change "West Acres Road" to "Westacre Road". (Chapter 1216)
CA 276	(none)		CA 276	Truncate	Change terminus: “… to ~~Mineral King~~ Oak Grove.” (Chapter 1051)
CA 282	LRN 119	CA 282	CA 282	Delete	Delete San Diego-Coronado Ferry to Route 75: “~~(a) … (b)~~ Orange Avenue to the Naval Air Station at North Island in Coronado.” (Chapter 1216)
CA 330	LRN 207	CA 30	CA 330	Transfer	Define via transfer from Route 30: "Route 30 near Highland northeasterly to Route 18" (Chapter 1216)

1973

The adjustments in 1973 were primarily in Northern California, deleting some unconstructed segments.

1973 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 77	LRN 235	CA 77	(none)	Delete	Delete from segment (b) Route 24 near Lafayette to Route 242, making the terminus “Route 24 near Lafayette.” (Chapter 447)
CA 93	LRN 254	CA 93	(none)	Delete	Delete "(a) I-680 near Alamo to Route 77 near Burton", leaving "(a) Route 77 near Burton to Route 24 near Orinda." (Chapter 602)

1974

1974 brought the adjustments to the routes along I-15 and in Temecula, in preparation for what would become I-15E (and eventually, I-215). This also resulted in adjustments to Route 71, Route 79, and Route 371.

1974 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
I-15	LRN 78 LRN 43 LRN 31	I-15	CA 194 (until 1982) I-215 (post 1982)	Transfer	To CA 194: I-15 near Temecula to I-15 near Devore (Chapter 537)
CA 31	LRN 193	CA 31	I-15	Delete	To I-15: Route 91 near Corona to I-15 near Devore (Chapter 537)
CA 71	LRN 77	CA 71	I-15	Transfer	Delete former (b), transfer it to I-15: I-15 near Temecula to Route 91 near Corona (Chapter 537)
	LRN 78	CA 71	CA 79	Transfer	Delete former (c), transfer it to CA 79: I-15 to Route 79 near Aguanga (Chapter 537)
	LRN 78	CA 71	CA 371	Transfer	Delete former (c), transfer it to CA 371: Route 79 to Route 74 (Chapter 537)
CA 79	LRN 78		CA 79	Clarify	Change (b): "Route 71" to "Route 15 near Temecula." This reflected the transfer from Route 71 of the segment from "the Route 371/Route 79 junction to I-15" to Route 79. (Chapter 537)
CA 194	LRN 78 LRN 43 LRN 31	CA 71 I-15	I-215	Redefine	Redefine: "Route 15 near Temecula to Route 15 near Devore via San Bernardino and passing near Riverside." (Chapter 537)
CA 371	LRN 277	CA 71	CA 371	Define	Define via a transfer from Route 71: “Route 79 near Aguanga to Route 74 east of Anza.” (Chapter 537)

1975

The 1975 Draft Caltrans Transporation Plan was published. This Plan laid out the premises and objectives underlying future state transportation policy and planning and presented legislators with the choice of four future transportation policy directions. In particular, it enumerated some fundamental premises that reshaped the highway system:

Land use and transportation decisions must be more closely tied together.
An increase in population will put greater demands on transportation
Additional funding is vital because funding levels for State and local roads are not sufficient to preserve the public’s investment
The funding sources and allocation process should be brought in line with today’s needs and priorities.
The Streets and Highways Code should be revised to minimize allocation inequities among counties and between counties and their cities.
The state should eliminate north-south split and county and transportation district minimums, and substitute a control formula under the California Transportation Plan for county groupings (similar in principle to the district minimums).
The public transportation needs of non-auto users are acute and require immediate state attention and financial assistance.
Peak period congestion on urban highways, roads, and streets and major airports will continue to worsen regardless of the emphasis placed on other modes of travel.
Transportation facilities should be planned to minimize consumption of prime agricultural land and facilitate the movement of agricultural products.
Air quality in California will be dramatically improved in the next 20 years primarily due to emission control standards for automobiles.
If transportation energy consumption were to be substantially reduced within the next five years, the most effective action would be in the area of implementing strong disincentives to auto travel.

It was also about this time that drastic reductions in the buying power of highway revenues (due to inflation, increasing vehicle fuel efficiency, and legislative reluctance to increase taxes), escalating highway construction costs, and increased opposition to new highway construction by local politicians, activists, residents, and environmental groups led the state to began to eliminate controversial segments of the freeway plan. By the late 1970s, any remaining pretense that the remaining routes could be built was abandoned.

1975 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 65	LRN 249		CA 65	Redefine	Split segment (b) and delete a portion: "(b) Route 198 near Exeter to Route 104 on a route along the easterly side of the San Joaquín Valley, which route may include all or portions of any existing state highway route. (c) The Sacramento-Placer county line to Route 80 near Roseville." (Chapter 244)
CA 141			(none)	Extend	Extend from Vallejo to Route 37: "~~into Vallejo~~ to Route 37." (Chapter 1078)
CA 244	LRN 288	CA 244	CA 244	Truncate	Delete Fair Oaks Boulevard near San Juan Avenue to Route 50: “Route 80 near Watt Avenue to ~~Route 50 near~~ Fair Oaks Boulevard near San Juan Avenue.” (Chapter 244)

1976

1976 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 21		CA 21	I-680	Transfer	To I-680: I-680 at Benicia to I-80 near Cordelia (Chapter 1354)
CA 33	LRN 41	CA 33	(none)	Delete	Delete "(f) I-5 near Vernalis to I-205 near Tracy " and its associated condition. (Chapter 1354)
CA 60	LRN 19	US 60	CA 60	Clarify	Change the reference to "Route 15" to "Route 194". Segment (b) changed to refer to "Route 10 near Beaumont." (Chapter 1354)
CA 74	LRN 64 LRN 78	CA 74	CA 74	Clarify	Change "Route 71" to "Route 15", and "Route 15" to "Route 194". (Chapter 1354)
CA 75	LRN 281	CA 75, CA 117	I-905	Transfer	Delete segment (a) [Route 125 near Brown Field to I-5 near the S end of San Diego Bay] and transfer to Route 117 (Chapter 1354)
CA 78	LRN 146		CA 78	Clarify	Remove all conditions from (c). (Chapter 1354)
CA 81	LRN 276		CA 81	Clarify	Change "Route 15" to "Route 194" and "Route 31" to "Route 15". (Chapter 1354)
CA 84	LRN 99	CA 84	CA 12	Transfer	Split (f) into two segments: "(f) Route 4 near Antioch to Route 12 near Rio Vista. (g) Route 12 near Rio Vista to Route 880 near Bryte via Ryer Island." (again, note that Route 880 is current Route 80). This transfered the segment within Rio Vista to Route 12. (Chapter 1354)
CA 88	LRN 34 LRN 23		CA 88	Clarify	Relax terminus to delete the reference to "near Pickets", leaving the terminus as "Route 89 in Hope Valley via Pine Grove, Silver Lake, and Kirkwood." (Chapter 1354)
CA 111	LRN 64 LRN 187		CA 111	Clarify	In (c), change "White Water" to "Whitewater" (Chapter 1354)
CA 117	LRN 281		I-905	Extend	In (a), change "Borderfield" to "Border Field". Add "(b) Route 5 near the south end of San Diego Bay to Route 125 near Brown Field." This was a transfer from Route 75. (Chapter 1354)
CA 122	LRN 266		CA 122	Split	Split (b): "(b) Route 138 to Route 48. (c) Route 48 northeasterly to Route 58." (Chapter 1354)
CA 140	LRN 18			Clarify	Clarify origin "(b) Route 99 near Merced to …" (Chapter 1354)
CA 141	LRN 74		(none)	Reword	Change "Route 680" to "Route 780". (Chapter 1354)
CA 160	LRN 11 LRN 4 LRN 5		CA 160	Reword	Change "Route 84" to "Route 12". (Chapter 1354)
CA 206	LRN 191		(none)	Reword	Reword route and change "Route 15" to "Route 194": "Route 194 to Route 30 in San Bernardino." (Chapter 1354)
CA 259	LRN 43		CA 259	Reword	Change "Route 15" to "Route 194". (Chapter 1354)
CA 263	LRN 3	CA 96 US 99 I-5	CA 263	Reword	Change "Route 5" to "Route 3" (Chapter 1354)
CA 282	(none)		CA 282	Clarify	Change "Orange Avenue" to "Route 75" (Chapter 1354)
I-680	LRN 5 LRN 108 LRN 107 LRN 75 LRN 74 LRN 7	CA 17 I-680 CA 21	I-680 I-780	Transfer	Add a second segment, and change (a) terminus: "(a) Route 101 near San Jose to Route 780 ~~in Vallejo~~ at Benicia passing near Warm Springs, Mission San Jose, Scotts Corners, and Sunol, and via Walnut Creek ~~and Benecia~~. (b) Route 780 at Benicia to Route 80 near Cordelia." From Route 21: (b) I-680 at Benicia to I-80 near Cordelia To I-780: (a) I-680 at Benicia to I-80 in Vallejo (Chapter 1354)
I-780	LRN 74	I-680	I-780	Define	Define by transfer from I-680: "Route 680 at Benicia to Route 80 in Vallejo." (Chapter 1354)

1977

In 1977, the California Transportation Plan Task Force released a report (Recommended Statewide Transportation Goals, Policies and Objectives) that presented a series of themes to guide state transportation policy. These themes were that:

Basic transportation service should be available to all Californians.
Planners should emphasize better use of existing transportation resources rather than concentrating on additions to current capacity.
Planners should consider social, environmental, and economic effects during planning and project selection.
Planners should rely on market incentives and competition as opposed to regulation to protect the environment, conserve natural resources, and reduce transportation costs. Regulation should be a tool of last resort.
The use of user charges was strongly recommended as the principal element of the transportation finance system due to reasons of efficiency and equity.
The need for flexibility in terms of project selection and significant public participation in the planning and decision making process was emphasized.

1977 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 91	LRN 175 LRN 43	US 91	CA 91	Redefine	Change "Route 15" to "Route 194". (Chapter 919)

1978

In 1978, the California Transportation Commission replaced the California Highway Commission, State Transportation Board, Aeronautics Board and California Toll Bridge Authority, for the purpose of advising and assisting the governor and legislature in formulating and evaluating state policies and plans for transportation programs. The CTC was assigned fiscal control of the planning functions of the California Highway Commission and State Transportation Board. A budging process was adopted requiring a five year State Transportation Improvement Program (STIP) with input from local and regional government entities. This program was to be updated biennially.

The following changes were made to routes in 1978:

1978 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 39	LRN 171 LRN 62 LRN 2	CA 39	CA 39	Redefine	Divide into three segments: (a) Route 1 near Huntington Beach to Route 72 in La Habra via Beach Boulevard. (b) Beach Boulevard to Harbor Boulevard in La Habra via Route 72. (c) Route 72 in La Habra to Route 2 via Harbor Boulevard to the vicinity of Fullerton Road, then to Azusa Avenue, Azusa Avenue to San Gabriel Canyon Road, San Gabriel Avenue southbound between Azusa Avenue and San Gabriel Canyon Road, and San Gabriel Canyon Road. (Chapter 1043)
CA 204	LRN 4		CA 204	Truncate	Delete Route 99 to Route 58: "~~Route 99~~ Route 58 to Route 99 near Bakersfield via ~~Brundate Lane,~~ Union Avenue and Golden State Avenue." (Chapter 287)

1979

1979 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 207			CA 207	Define	Redefine: "Route 4, 1.35 miles west of Lake Alpine, to the Mt. Reba Ski Area." (Chapter 572)

1980

The Business and Transportation Agency was renamed the Business, Transportation and Housing Agency to better convey its broader mission.

1980 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 1	LRN 2	US 101	CA 1	Transfer	Transfer segment from US 101: Route 101 at Emma Wood State Beach, 1.3 miles north of Route 33, to Route 101, 2.8 miles south of the Ventura-Santa Barbara County line at Mobil Pier Undercrossing. (Chapter 740)
CA 87	LRN 292		CA 87	Reword	Remove all conditions; change (b) to “(b) San Jose easterly of Route 101 to Route 237.” (Chapter 777)
US 101	LRN 2	US 101	CA 1	Transfer	To CA 1: Route 101 at Emma Wood State Beach, 1.3 miles north of Route 33, to Route 101, 2.8 miles south of the Ventura-Santa Barbara County line at Mobil Pier Undercrossing. (Chapter 740)

1981

1981 saw a 2¢ increase in the gas tax. Even with this, California now ranked last in the states in per capita spending on highways. Further, the increase in the tax came with a provision that decreed that the agency shift its priorities to system maintenance and reconstruction and away from the construction of new facilities. The bill, SB 215, established the following priorities:

Maintenance, rehabilitation, and reconstructing of the existing highway system for the purpose of protecting the public’s investment in the system.
Safety improvements for the purpose of reducing the number and severity of traffic accidents.
Operational improvements to the existing system for maximum service efficiency.
New construction.
Other purposes, including landscaping planting, litter pickup, and compatibility improvements.

This year also saw the creation of I-110 and I-980.

1981 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 9		CA 9	CA 9	Extend	Change origin from Route 17 to Route 1 near Santa Cruz (Chapter 292)
CA 11		CA 11	I-110	Transfer	To I-110: San Pedro to I-10 (Chapter 292)
CA 11		CA 11	CA 110	Transfer	To CA 110: I-10 to Pasadena (Chapter 292)
CA 23	LRN 155	CA 23	CA 23	Clarify	Change the end of (a) to be "Route 101 ~~near Triunfo.~~" (Chapter 292)
CA 24	LRN 226	CA 24	I-980	Transfer	Transfer segment (a) to I-980: I-880 near Castro Street to I-580. Change former (c) to be "near Walnut Creek". (Chapter 292)
CA 27	LRN 156	CA 27	CA 27	Simplify	Change wording of terminus: "Route 118 ~~at or near Chatsworth~~" (Chapter 292)
CA 39	LRN 2	CA 72	CA 39	Transfer	From CA 72: Beach Blvd to Harbor Blvd (Chapter 292)
I-40	LRN 58	US 66	I-40	Truncate	Eliminate mention of extension and bridge. (Chapter 292)
CA 47			CA 47	Correct	Change "Route 11" to "Route 110" (Chapter 292)
US 50	LRN 6 LRN 11	US 50 I-80	US 50 (Signed as Business Route 80)	Extend	Change to " "Route 80 in West of Sacramento", adding the FAI 305 portion (Route 51 to I-80) to US 50. (Chapter 292)
CA 51	LRN 98 LRN 3	I-80	Business Route 80	Redefine	Add new definition: "Route 50 in Sacramento to Route 80 east of Sacramento. Notwithstanding Section 640, Route 51 shall be signed Interstate Business Loop 80." (Chapter 292)
CA 62	LRN 187 LRN 218		CA 62	Clarify	Change "White Water" to "Whitewater" (Chapter 292)
CA 72	LRN 2	US 101	CA 72	Redefine	Route 39 to Downey Road near the City of Los Angeles. Route 72 shall cease to be a state highway when Route 90 freeway is completed from Route 5 to Route 39. (Chapter 292)
		US 101	(none)	Delete	I-5 to Harbor Blvd (Chapter 292)
		US 101	CA 39	Transfer	To CA 39: Harbor Blvd to Route 39 (Chapter 292)
CA 79	LRN 78		CA 79	Reword	Change the terminus (a) to "Route 78 near Julian". Change origin of (b) to "Route 78 near Santa Ysabel" (Chapter 292)
CA 84	LRN 99	CA 84	CA 160	Transfer	Delete (f), and clarify the remaining segment"(f) Route 12 at Rio Vista to Route 80 near Bryte via Ryer Island." It also renumbered Route 880 to Route 80. The former (f) [Route 4 near Antioch to Route 12 near Rio Vista] was transfered to Route 160. (Chapter 292)
CA 99	LRN 4	US 99	CA 99	Clarify	Change terminus of (a) from "Route 80" to "Route 50", reflecting the renumbering of routes in Sacramento. (Chapter 292)
I-105	(none)		I-105	Clarify	Change origin to "The south boundary of the Los Angeles International Airport near El Segundo". (Chapter 292)
CA 110	LRN 165 LRN 206	CA 11	I-110 CA 110	Redefine	Renumber Route 11 as Route 110, making the definition "San Pedro to Colorado Boulevard in Pasadena." (Chapter 292)
CA 111	LRN 187		CA 111	Clarify	In (b), remove the reference to "near Mecca" (Chapter 292)
CA 139	LRN 20 LRN 216		CA 139	Clarify	In (a), change origin: "(a) Route 36 ~~near~~ in Susanville to …". (Chapter 292)
CA 160	LRN 11 LRN 4 LRN 3		CA 160	Extend	Extend (transfer from Route 84) and correct I-80 reference: "(a) Route 4 near Antioch to Route 12 near Rio Vista. (b) Route 12 near Rio Vista to ~~Route 80 near North Sacramento~~ Route 51 via Sacramento." (Chapter 292)
CA 195	LRN 203 LRN 204		CA 195	Clarify	Change "Route 86 Freeway" to "Route 86 Expressway" (Chapter 292)
CA 214	LRN 178		(none)	Delete	Delete routing: "Route 19 near Lakewood to Route 5 near Anaheim" (Chapter 292)
CA 222	LRN 70		CA 222	Reroute	Change to "Route 101 near Ukiah easterly to East Side Road in Talmadge ~~the west line of the grounds of the Mendocino State Hospital~~". (Chapter 292)
CA 250	LRN 180		(none)	Delete	Delete routing: "Route 5 near Orange County Hospital northerly to Route 91" (Chapter 292)
CA 275	LRN 6	CA 275 US 99W US 40	(none)	Clarify	Change "Route 80" to "Route 50", reflecting the renumbering of routes in Sacramento. (Chapter 292)
I-880	LRN 242		I-80	Transfer	Transfer I-880 routing in Sacramento (Route 80 between Harbor Boulevard and the Yolo Causeway west of Sacramento to Route 80 near Watt Avenue) to I-80. This required no changes to the definition of I-80. (Chapter 292)
I-980	LRN 226	CA 24	I-980	Transfer	Define by transfer from Route 24: "Route 17 in Oakland to Route 580." (Chapter 292)

1982

In 1982, Route 215 was created, requiring some adjustments to other routes. There were also some changes to routes in the Ports of Los Angeles and Long Beach.

1982 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 7			I-710	Extend	Added: (a) Route 7 shall also include that portion of the freeway between Route 1 and the northern end of Harbor Scenic Drive, that portion of Harbor Scenic Drive to Ocean Boulevard, that portion of Ocean Boulevard west of its intersection with Harbor Scenic Drive to its junction with Seaside Boulevard, and that portion of Seaside Boulevard from the junction with Ocean Boulevard to Route 47. (b) Subdivision (a) shall not become operative...unless the commission approves...a financial plan... (Chapter 914)
CA 47			CA 47	Clarify	Added text to indicate that "Route 47 shall also include that portion of Henry Ford Avenue from Route 47 to Alameda Street and that portion of Alameda Street from Henry Ford Avenue to Route 91. Route 47 shall not include that portion of the adopted route from Route 1 to Willow Street and that portion of the adopted alignment from Willow Street to Route 405. (b) Subdivision (a) shall not become operative...unless the commission approves...a financial plan..." The portion dropped from Route 47 became new Route 103 in 1984. (Chapter 914)
CA 60	LRN 19	US 60	CA 60	Clarify	Change "Route 194" to "Route 215". Change origin of (b) to "Route 215 east of Riverside" (Chapter 681)
CA 74	LRN 64 LRN 78		CA 74	Clarify	Change "Route 194" to "Route 215" (Chapter 681)
CA 81	LRN 276		CA 81	Clarify	Change "Route 194" to "Route 215" (Chapter 681)
CA 91	LRN 175 LRN 43	US 91	CA 91	Clarify	Change "Route 194" to "Route 215" (Chapter 681)
CA 194	LRN 78 LRN 43 LRN 31	CA 194	I-215	Transfer	To I-215: Entire route, I-15 near Temecula to I-15 near Devore (Chapter 681)
CA 206	LRN 191		(none)	Reword	Change order back to 1963, and change "Route 194" to "Route 215": "Route 30 in San Bernardino via Little Mountain to Route 215 near Verdemont" (Chapter 681)
I-215	LRN 78 LRN 43 LRN 31	CA 194	I-215	Redefine/ Transfer	From Route 194: Entire route: “Route 15 near Temecula to Route 15 near Devore via San Bernardino and passing near Riverside.” (Chapter 681)
CA 259	LRN 43		CA 259	Clarify	Change "Route 194" to "Route 215". (Chapter 681)

1983

California’s gas tax increased to 9 cents a gallon, the first increase since 1963. This is also where we see the first change being made for the Orange County Toll Roads -- starting with Route 73.

1983 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 73		CA 73	(none)	Delete	MacArthur Boulevard from Route 1 near Corona del Mar to San Diego Creek in Irvine (Chapter 849)
CA 73			CA 73	Reroute	Reroute to be “Route 5 near San Juan Capistrano to Route 405 via the San Joaquin Hills. MacArthur Boulevard from Route 1 near Corona del Mar to San Diego Creek in Irvine shall cease to be a state highway when the Route 73 freeway as described above is completed.” This reflected the planned construction of the San Joaquin Hills Toll Road. (Chapter 849)

1984

1984 brought some interesting transformations as a result of more non-chargeable interstates. I-710 and I-880 were created, with appropriate changes to Route 17. This is also when I-580 was extended across the top of the bay. Route 1 lost the "Lost Coast" segment to Route 211. There were also numerous adjustments throughout the highway system.

1984 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 1		CA 1	CA 211	Transfer	To CA 211: Route 1 near Rockport to US 101 near Fernbridge (Chapter 409)
CA 1				Add	Add clarification: Route 1 shall also include that portion of the Lompoc-Casmalia Road and Vandenburg Road in the County of Santa Barbara from the intersection of the Lompoc-Casmalia Road and Route 1 north of Lompoc near Mission Hills to the intersection of Vandenburg Road and Route 1 south of Orcutt. (Chapter 409)
CA 2			CA 2	Clarify	Change the definition of Segment (b) to remove the phrase "via the vicinity of Avenue 36 in Los Angeles" (Chapter 409)
I-5		I-5, US 99, US 101	I-5	Simplify	Deleted references to "a point on Route 99 south of Bakersfield" and references to "also passing near Santa Ana, Norwalk, Elysian Park in Los Angeles, Glendale, Woodland, and Red Bluff." Deleted the phrase "That portion between Route 99 south of Bakersfield and Route 113 near Woodland may include all or portions of any existing state highway route or routes.". Added "Sacramento", and changed "via Yreka" to "Yreka". (Chapter 409).
CA 7	LRN 167, LRN 231	CA 15 CA 7	I-710	Transfer	To I-710: Entire route (Chapter 409)
CA 16	LRN 50	CA 24	CA 16	Delete	Deleted segment (b): "Route 5 near Woodland to Sacramento." (Chapter 409)
CA 17		CA 17	I-880	Transfer	To I-880: I-280 to I-80 (Chapter 409)
		CA 17	I-580	Transfer	To I-580: I-80 near Albany to US 101 near San Rafael (Chapter 409)
	LRN 69	CA 17	CA 251	Transfer	To CA 251: US 101 near San Rafael to Route 1 near Point Reyes Station (Chapter 409)
CA 18			CA 18	Split	Split into two parts: (a) Route 10 near San Bernardino to Route 15 via San Bernardino, Big Bear Lake, and Victorville. (b) Route 15 to Route 138. (Chapter 409)
CA 23	LRN 155	CA 23	CA 23	Reroute	Change segment (b): Route 101 ~~near Newbury Park~~ in Thousand Oaks to Route 118 (Chapter 409)
CA 25	LRN 119	CA 180	CA 25	Extend	Change the routing to "(a) Route 198 to Route 156 in Hollister. (b) Route 156 in Hollister to Route 101 near Gilroy." by the transfer of route from Route 180, specifically the segment from Route 25 in Paicines to US 101 near Gilroy. (Chapter 409)
CA 26	LRN 5	CA 8	CA 26	Extend	Change the routing of segment (c) to terminate at "Route 88 near Pioneer Station via Mokelumne Hill and West Point" by a transfer from Route 104. (Chapter 409)
CA 29			CA 29	Reroute	No change in definition, but a new Napa River Bridge routing and a freeway routing was added. The bypassed former routings were moved to Route 121 and Route 221. (Chapter 409)
		CA 29	CA 121	Transfer	To CA 121: Route 29 in Napa to Route 221 near Napa State Hospital (Chapter 409)
		CA 29	CA 221	Transfer	To CA 221: Route 29 near Soscol Road to Route 121 at Imola Avenue (Chapter 409)
CA 32	LRN 47	CA 32	CA 32	Simplify	Change terminus of (b) to simply Route 36. (Chapter 409)
CA 35			CA 35	Extend	Route 92 to I-280 at Bunker Hill Place (Chapter 409)
CA 36	Various	CA 36	CA 36	Reword	Change "Morgan" to "Morgan Summit" (Chapter 409)
CA 37	CA 251	CA 37	CA 37	Reword	Change "Route 17" to "Route 251" (Chapter 409)
CA 49	LRN 65		CA 49	Reword	Split the original (a) into two segments: "a) Route 41 near Oakhurst to Route 140 at Mariposa. (b) Route 140 at Mariposa to Route 120 near Moccasin.". Change wording of (d) to "Route 80 near Auburn to Route 20 in Grass Valley." (Chapter 409)
CA 61			CA 61	Reword	Change "Route 17" to "Route 580". (Chapter 409)
CA 77	LRN 235		CA 77	Reword	Change “Route 17” to “Route 880”. (Chapter 409)
CA 84	LRN 107 LRN 214		CA 84	Reword	Rewrite segments (a) and (b) and relocate the discontinuity to US 101: "(a) Route 1 near San Gregorio to Route 101 at Woodside Road in Redwood City. (b) Route 101 at Marsh Road in Menlo Park to Route 238." What this did was swap the LRN 107 and LRN 214 portions, so that Route 84 took the LRN 214 portion, and Route 114 took the LRN 107 portion. (Chapter 409)
CA 86	LRN 26		CA 86	Reword	Clarify the terminus to be "Route 10 in Indio via the vicinity of Brawley." (Chapter 409)
CA 89	LRN 83		CA 89	Clarify	Change "Morgan" to "Morgan Summit" in (e) (Chapter 409)
CA 96	LRN 46 LRN 84		CA 96	Clarify	Correct wording to "Route 299 near Willow Creek via the vicinity of Weitchpec to Route 5 near the confluence of the Shasta and Klamath Rivers." (Chapter 409)
US 97	LRN 72		US 97	Clarify	Reword as "Route 5 ~~at Highway Avenue~~ in Weed to the Oregon state line near ~~Calor~~ Dorris." (Chapter 409)
CA 99	LRN 232 LRN 245 LRN 87 LRN 3	US 99E	CA 99	Clarify	Combine (b) and (c), creating "(b) Route 5 in Sacramento to Route 5 near Red Bluff, passing near Catlett and Tudor." (Chapter 409)
CA 103	LRN 270	CA 47	CA 103	Redefine	In 1984, Chapter 409 redefined the route as "Route 47 in Long Beach to Route 1." (thus absorbing a portion dropped from Route 47 in 1982) (Chapter 409)
CA 104	(none)	CA 104	CA 26	Transfer	In (b), change "Sutter Hill" to "Sutter Creek". Transfer (c) [Route 88 SW of Pioneer Station to Route 26 near West Point] to Route 26. (Chapter 409)
CA 108	LRN 109 LRN 13		CA 108	Truncate	Chnage origin, clarify terminus: “~~Route 99~~ Route 132 in Modesto to Route 120 in Oakdale.” (Chapter 409)
CA 109	(none)		CA 109	Redefine	“the vicinity of Notre Dame Avenue in East Palo Alto to Route 84.” (Chapter 409)
CA 114	LRN 107 LRN 214		CA 114	Redefine	Swap a portion of Route 114 and Route 84, moving Route 84 to the northern (LRN 214) alignment, and giving Route 114 the old Route 84 alignment. This made the definition of Route 114 "Route 280 in Menlo Park to Route 84." (Chapter 409)
CA 121	LRN 6		CA 121	Reroute	Change (b) to "Route 29 in Napa ~~near Napa State Hospital~~ to Route 128. (Chapter 409)
CA 135	LRN 2		CA 135	Reroute	Chanage terminus of (a) to "Route 1 south of Orcutt ~~near Harriston~~". This reflected the work to incorporate former County Sign Route S20 was incorporated into Route 1, and the incorporation of a portion of former Route 1 into Route 135. (Chapter 1258)
CA 138	LRN 59 LRN 267 LRN 188		CA 138	Combine	Combined segments: "Route 5 near Gorman to Route 18 near Crestline." (Chapter 409)
CA 149	LRN 87		CA 149	Clarify	Clarify terminus: "… to Route 99 south of ~~near~~ Chico." (Chapter 409)
CA 160	LRN 11 LRN 4 LRN 3		CA 160	Clarify	Combine segments: "Route 4 near Antioch to Route 51 in Sacramento." (Chapter 409)
CA 163	LRN 77	CA 163	CA 163	Clarify	Clarify: "Route 5 near Balboa Park in San Diego to Route 15 near ~~United States~~ Miramar Naval Air Station~~, Miramore and westerly of Route 15~~". (Chapter 409)
CA 172	LRN 36		CA 172	Clarify	Correct terminus: “… to Route 36 near Morgan Summit. ” (Chapter 409)
CA 176	LRN 148	CA 176	(none)	Delete	Delete routing: Santa Maria to Sisquoc (Chapter 1258)
CA 180		CA 180	CA 25	Transfer	Transfer (a) and part of (b) to Route 25 (Route 25 in Paicines to US 101 near Gilroy), truncate (d): : “(b) ~~Route 156~~ Route 25 near Paicines to Route 5. […] (d) The General Grant Grove section of Kings Canyon National Park to ~~Kings Canyon River~~ Kings Canyon National Park boundary near Cedar Grove.” (Chapter 409)
CA 185	LRN 105		CA 195	Clarify	Clarify: "Route 92 in Hayward to ~~High Street~~ Route 77 in Oakland." (Chapter 409)
CA 193		CA 193	CA 49	Transfer	Transfer 1972 transferred portion back to Route 49: "…to ~~Route 50~~ Route 49 near Placerville via Georgetown." (Chapter 409)
CA 207	(none)		CA 207	Clarify	Relax definition to "Route 4 ~~1.35 miles west of~~ near Lake Alpine to the Mt. Reba Ski Area." (Chapter 409)
CA 208	LRN 56	CA 208	CA 1	Transfer	To CA 1: Route 1 near Rockport to US 101 near Leggett (Chapter 409)
CA 211	LRN 56	CA 1	CA 211	Transfer	Redefine using routing from CA 1: "Route 1 near Rockport to Route 101 near Fernbridge". (Chapter 409)
CA 221		CA 221	(none)	Redefine	Delete: Route 29 N of Napa to Route 121 near Napa New Defn: Route 29 near Suscol Road to Route 121 at Imola Avenue in Napa (Chapter 409)
CA 244	LRN 288		CA 244	Clarify	Clarify: “Route 80 ~~near Wall Avenue~~ to Fair Oaks Boulevard near San Juan Avenue.” (Chapter 409)
CA 246	LRN 149	CA 150, CA 154	CA 246	Delete	Delete Surf to Lompoc: “(a) ~~Surf~~ Current west city limits of the City of Lompoc to Route 1.” (Chapter 1258)
CA 251	LRN 251		CA 251	Extend, Clarify	Reorder (a), change "Route 17" to "Route 580", and add segment (b) (transfer from Route 17): “(a) Route 580 near Point San Quentin to Route 101 near Greenbrae. (b) Route 101 near San Rafael to Route 1 near Point Reyes Station.” (Chapter 409)
CA 260	LRN 226	CA 61	CA 260	Clarify	Change "Route 17" to "Route 880". (Chapter 409)
CA 262	LRN 69		CA 262	Clarify	Change "Route 17" to "Route 880". (Chapter 409)
CA 266	(none)		CA 266	Clarify	Relax routing: “Route 168 near Oasis to the Nevada state line ~~via Mono county road 101~~.” (Chapter 409)
I-280	LRN 115 LRN 5 LRN 239 LRN 225 LRN 2 LRN 253 LRN 224	CA 17 CA 1 CA 82 CA 87 CA 480	I-280	Clarify	Change origin: “~~Route 680 near Story Road~~ Route 101 in San Jose to …” (Chapter 409)
I-580	LRN 110 LRN 5 LRN 69		I-580	Clarify	Extend route by transfer from Route 17: "(a) Route 5 southwest of Vernalis to Route 80 near Oakland via the vicinity of Dublin and Hayward. (b) Route 80 near Albany to Route 101 near San Rafael via the Richmond-San Rafael Bridge." (Chapter 409)
I-605	LRN 170	CA 240 CA 243 I-605	I-605	Clarify	Combine (b) and (c): "(b) Route 405 to Route 210 near Duarte." (Chapter 409)
I-710	LRN 167, LRN 231	CA 7 CA 15	I-710	Define	Renumber Route 7 ("Route 1 to Route 210 in Pasadena.") as Route 710, including all conditions. (Chapter 409)
I-880	LRN 5 LRN 239 LRN 69	CA 17	I-880	Define	Define by transfer from Route 17: "Route 280 in San Jose to Route 80 in Oakland." (Chapter 409)

1985

1985 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 65	LRN 249		CA 65	Redefine	Redefine similarly to 1963: "(b) Route 198 near Exeter to Route 80 near Roseville on a route along the easterly side of the San Joaquín Valley, which route may include all or portions of any existing state highway route." (Chapter 46)
CA 72	LRN 2	US 101	CA 72	Add Conditions	Add: “…except as follows: (a) Route 72 shall cease to be a state highway when Route 90 freeway is completed from Route 5 to Route 39. (b) Notwithstanding subdivision (a), that portion of Route 72 from Atlantic Boulevard to Downey Road shall cease to be a state highway when the County of Los Angeles completes the reconstruction of Whittier Boulevard approximately between these two limits.” (Chapter 385)
CA 148	(none)		CA 148	Extend	Add: "(b) Route 143 S of Route 16 to Route 65" (Chapter 46)

1986

1986 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 18			CA 18	Clarify	Tighten wording: (a) Route 10 near San Bernardino to Route 15 ~~via San Bernardino, Big Bear Lake, and Victorville~~ in Victorville via Big Bear Lake. (b) Route 15 near Victorville to Route 138 near Pearblossom. (Chapter 928)
CA 41			CA 41	Combine	Combine previous (c) and (d) into "(c) Route 99 in Fresno to Yosemite National Park." (Chapter 928)
CA 43	LRN 139 LRN 135	CA 43	CA 43	Reword	Introduce discontinuity in Wasco: (a) Route 119 to Route 46 in Wasco. (b) Route 46 in Wasco to Route 99 near Selma. (Chapter 928)
CA 60	LRN 19	US 60	CA 60	Clarify	Redefine (a) terminus as "Route 215 in Riverside via Pomona" (Chapter 928)
CA 66	LRN 9	US 66	CA 66	Clarify	Change terminus to "Route 215 in San Bernardino." (Chapter 928)
CA 70	LRN 232 LRN 3 LRN 87 LRN 21/LRN 30 LRN 21	CA 70	CA 20	Transfer	To CA 20: Route 20 in Marysville to Route 20 in Marysville (Chapter 928)
CA 70	LRN 232 LRN 3 LRN 87 LRN 21/LRN 30 LRN 21	US 40A	CA 70	Redefine	Split into two segments: (a) Route 99 near Catlett Road to Route 20 in Marysville. (b) Route 20 in Marysville to Route 395 near Hallelujah Junction via Quincy and Beckwourth Pass. (Chapter 928)
CA 74	LRN 64 LRN 78		CA 74	Clarify	Clarify definition: “(a) Route 5 near San Juan Capistrano to Route 15 near Lake Elsinore. (b) Route 15 near Lake Elsinore to Route 215 near Perris. (c) Route 215 near Perris to Route 10 near Thousand Palms via Hemet and Palm Desert.” (Chapter 928)
CA 88	LRN 34 LRN 23 LRN 24		CA 88	Reword	Combine (b) and (c) with a transfer from Route 89, giving "(b) Route 49 in Jackson to the Nevada state line via Pine Grove, Silver Lake, and Kirkwood." (Chapter 928)
CA 89		CA 89	CA 88	Transfer	Split (a) into two parts: "(a) Route 395 near Coleville to Route 88 via the vicinity of Markleeville. (b) Route 88 near Picketts Junction to Route 50 near Meyers." The portion between the two segments was transferred to Route 88. (Chapter 928)
CA 103	LRN 270	CA 47	CA 103	Clarify	Correct origin to be "Route 47 in Los Angeles" (Chapter 928)
CA 117		CA 75	I-905	Transfer	Renumber Route 117 as (non-chargable interstate) Route 905. (Chapter 929)
CA 125		CA 125	I-905	Transfer	Transfer the portion added to in 1972 (Border to Brown Field) to Route 905, making (a) "(a) Route 905 near Brown Field to ..." (Chapter 928)
CA 168	LRN 63		CA 163	Clarify, Transfer	Clarify (c) and transfer Oasis to Nevada State Line to Route 266: "Route 395 at Big Pine to ~~Nevada State Line via~~ Route 266 at Oasis." (Chapter 928)
CA 248	LRN 161	US 66	CA 248	Truncate	Truncate route within Pasadena: “~~Route 134 near~~ the east limit of the City of Pasadena to Route 210 near Monrovia.” (Chapter 928)
CA 266	LRN 63	CA 168	CA 266	Transfer	Extend with transfer from Route 168: “~~Route 168 near~~ The Nevada state line easterly of Oasis to the Nevada state line northerly of Oasis.” (Chapter 928)
CA 905	LRN 281	CA 117 CA 125	CA 905	Transfer	(a) The International Boundary near Border Field northeasterly to Route 5. (b) Route 5 near the south end of San Diego Bay to the International Boundary southerly of Brown Field. (Chapter 928)
I-980	LRN 226	CA 24	I-980	Clarify	Change "Route 17" to "Route 880" (Chapter 928)

1987

Caltrans established its 12th and final district. The new district was in Orange County.

1988

1988 was notable for a few things. First, the Transportation Corridor Agencies routings in Orange County were created: Route 231, Route 241, Route 261. Route 73 was extended earlier (in 1983), and the extension of Route 133 will come later.

1988 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 36			CA 36	Simplify	Combine first two segments into "Route 101 near Alton to Route 395 near Johnsonville passing near Forest Glen and Peanut via Red Bluff and Mineral, via the vicinity of Morgan Summit, and via Susanville." (Chapter 106)
CA 44	LRN 20 LRN 83		CA 44	Combine	Combine into single segment "Route 5 at Redding to Route 36 west of Susanville, via the vicinity of Lassen Volcanic National Park." (Chapter 106)
CA 72	LRN 2	US 101	CA 72	Add Condition	Add “(c) Notwithstanding subdivision (a), the portion of Route 72 from Route 605 to Atlantic Boulevard shall cease to be a state highway when the County of Los Angeles, the City of Montebello, and the City of Pico Rivera complete the reconstruction of their respective portions of Whittier Boulevard approximately between these two limits.” (Chapter 106)
CA 82	LRN 2	US 101	CA 82	Reroute	Change origin to be "Route 101 near Blossom Hill Road in San Jose" (Chapter 106)
CA 84	LRN 107 LRN 108		CA 84	Reword	Split segment (b) and make the definition more specific: "(b) Route 101 at Marsh Road in Menlo Park to Route 880. (c) Route 880 to Route 238. (e) Route 680 near Scotts Corners to Route 580 in Livermore. (f) Route 580 in Livermore to Route 4 near Brentwood." (Chapter 106)
CA 85	LRN 114		CA 85	Reword	Change origin to be "Route 101 near Bernal Road in San Jose" (Chapter 106)
CA 87	LRN 292		CA 87	Reword	Change origin to “Route 85 in the vicinity of Santa Teresa Boulevard” (Chapter 106)
CA 93	LRN 254		CA 93	Reword	Clarify the definition of (a) and split (b): "(a) Route 77 near ~~Burton~~ Moraga to Route 24 near Orinda. (b) Route 24 near Orinda to ~~Route 17~~ Route 80 in Richmond and Pinole. (c) Route 80 to Route 580 in Richmond via San Pablo and north Richmond. (Chapter 106)
CA 99	LRN 3	US 99E	CA 99	Reword	Change terminus of (b) to "Route 36 near Red Bluff" (Chapter 106)
CA 109			CA 109	Extend	Notre Dame Avenue to US 101 . Caltrans is not responsible for the maintenance or operation of Route 109, except for that segment between Notre Dame Avenue in East Palo Alto and Route 84” (i.e., the extension was signing purposes only). (Chapter 416)
CA 130	LRN 115		CA 130	Clarify	Clarify the definition: "Route 101 ~~near~~ in San Jose to Route 33 near Patterson via the vicinity of Mount Hamilton." (Chapter 106)
CA 141		CA 141	(none)	Delete	Vallejo to Route 37 (Chapter 106)
CA 141	LRN 74	CA 141	(none)	Delete	Extension of I-780 from I-80 into Vallejo (Chapter 106)
CA 187	LRN 163	CA 187	CA 187	Truncate	Delete the Santa Monica portion of the route: "~~Route 1 at a point near Colorado Avenue in Santa Monica~~ the South city limits of Santa Monica near Dewey Street to Route 10 via Pacific Avenue and Venice Boulevard; provided…" (Chapter 106)
CA 231		CA 231	CA 261 CA 241	Define	New routing: “Route 5 near the border of the Cities of Tustin and Irvine to Route 91.” (Chapter 1364)
CA 237	LRN 113		CA 237	Extend	Clarify routing: “Route 82 ~~near~~ in Mountain View to Route 680 ~~near~~ in Milpitas.” (Chapter 106)
CA 241	(none)		CA 241	Define	Redefine: “Route 231 near the Cities of Tustin and Irvine to Route 5 south of San Clemente.” (Chapter 1363)
I-980	LRN 226	CA 24	I-980	Clarify	Clarify: "Route 880 ~~in Oakland~~ to Route 580 in Oakland" (Chapter 106)

1989

The massive Loma Prieta Earthquake occurred on October 17, raising awareness for the need to strengthen and retrofit state highway bridges. After the earthquake, emergency transportation was greatly impacted in the Bay Area; however, Caltrans reopened the Bay Bridge in an amazing 30 days.

In 1989, the passage of the Transportation Blueprint for the 21st Century (a collection of bonds and user tax increases) brought $18.5 billion in additional transportation resources to state and local transportation agencies over ten years. Its passage was driven by public concerns over growing traffic congestion and was given an added push by the Loma Prieta earthquake which severely damaged transportation infrastructure in the Bay Area. It included a proposal for the creation of an Interregional Road System to consist of 3,300 miles of the most important state freeway and highway routes. The $3 billion Interregional Road System plan was unveiled in 1990. The plan contemplated the eventual development to freeway or expressway standards of the 3,300-mile system, capacity addition on critical trunk-line routes, and modest design upgrades on an additional 1,800 miles of “priority routes” not formally part of the interregional system.

1990

Californians approved a 5¢ per gallon gas tax increase, with a further increase of 1¢ per gallon a year until 1994. A State Master Plan for Transportation was adopted, with a focus on reducing traffic congestion and an emphasis on expanding bus, rail and other public transit systems instead of adding more freeways.

1990 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 2	LRN 162	US 66	CA 2	Change	Split segment (b) into (b) Route 101 in Los Angeles to Route 210 in La Canada Flintridge via Glendale. (c) Route 210 in La Canada Flintridge to Route 138 via Wrightwood. (Chapter 1187)
CA 4			CA 4	Change	Tighten language for (a) to "in Hercules". (Chapter 1187)
CA 7			CA 7	Define	"From a new International Border crossing near Calexico to Route 8 near El Centro." (Chapter 1187)
CA 24	LRN 256		CA 24	Change	Change "near Walnut Creek" to "in Walnut Creek" in (b). (Chapter 1187)
CA 35	LRN 55	CA 5	CA 35	Change	Change origin to "Route 17 at Summit Road" (Chapter 1187)
CA 36			CA 36	Change	Delete reference to "Peanut" (Chapter 1187)
CA 123	LRN 14	US 40	CA 123	Clarify	"Route 580 at San Pablo Avenue in Oakland to Route 80 in Richmond at Cutting Boulevard." (Chapter 1187)
CA 128	LRN 103		CA 128	Clarify	In (b): Clarify the terminus: "...to Route 29 ~~near~~ in Calistoga." (Chapter 1187)
CA 148	LRN 248		CA 148	No-Op	Fix formatting. (Chapter 1187)
CA 152	LRN 32		CA 152	Clarify	Clarify: "(a) Route 1 near Watsonville via Hecker Pass to Route 101 in Gilroy. (b) Route 101 near Gilroy to Route 65 near Sharon via Pacheco Pass." (Chapter 1187)
CA 186			CA 186	No-Op	Remove duplicate definition of Route 186. (Chapter 216)
CA 221	LRN 8		CA 221	Clarify	Change ""Suscol" to "Soscol" (Chapter 1187)
CA 222	LRN 70		CA 222	Clarify	Change "Talmadge" to "Talmage" (Chapter 1187)
CA 235	LRN 260		CA 235	Clarify	Clarify terminus: “…to Route 99 north of the Calaveras River in Stockton.” (Chapter 1187)
CA 236	LRN 44		CA 236	Clarify	Clarify origin: “Route 9 ~~near~~ in Boulder Creek to …” (Chapter 1187)
CA 244	LRN 288		CA 244	Clarify	Clarify: “Route 80 to Fair Oaks Boulevard near San Juan Avenue in Carmichael.” (Chapter 1187)
CA 254	LRN 1		CA 254	Clarify	Clarify: “the Avenue of the Giants, comprising a portion of the former Redwood Highway through and connecting a number of state park units, from Route 101 near the Sylvandale interchange to one-tenth of a mile north of Jordan Creek south of Stafford.” (Chapter 1187)
I-580	LRN 110 LRN 5 LRN 69		I-580	Clarify	Clarify segment (a): "(a) Route 5 southwest of Vernalis to Route 80 in ~~near~~ Oakland via the vicinity of Dublin and Hayward." (Chapter 1187)

1991

In 1991, and later in 1998, new federal surface transportation legislation introduced changes in the federal transportation program that have increased the challenges faced the state. This legislation shifted the balance of power between state and regional transportation agencies by granting the regional agencies a significant degree of financial and planning independence. It moved the state into a statewide coordinator of metropolitan area plans, overseer of rural and inter-city transportation concerns, and compiler of these various components into a single long-range (twenty-year) planning document.

1991 also some more adjustments to the Orange County Toll Roads as the layout was being determined. Notably, it also saw the deletion of Route 480 as a result of Loma Priata: Some went to US 101, some just went away.

1991 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 1	LRN 56		CA 1	Change	Change the terminus of the San Francisco segment from I-480 to "Route 101 near the approach to the Golden Gate Bridge in San Francisco." (Chapter 498)
US 101	LRN 2		US 101	Transfer	Absorb former CA 480: "(b) Route 80 near Division Street in San Francisco to the junction of Route 1, Funston approach, and the approach to the Golden Gate Bridge in the Presidio of San Francisco passing near the intersections of Lombard Street and Van Ness Avenue." (Chapter 498)
CA 206	LRN 191		(none)	Delete	Delete route: "Route 30 in San Bernardino via Little Mountain to Route 215 near Verdemont" (AB 1886, Chapter 928)
CA 231		CA 231	CA 133	Extend	Extend by transfer from Route 241: “Route 5 ~~near the border of the Cities of Tustin and Irvine~~ at Route 133 to …”. Transfer the portion from Route 5 near Tustin and Irvine to Route 241 to Route 261. (SB 732, Chapter 775)
CA 261	(none)	CA 231	CA 261	Define	Recreate by transfer from Route 231: “Route 5 near the border of the Cities of Tustin and Irvine to Route 231” (SB 732, Chapter 775)
CA 480			US 101	Transfer	Delete the remainder of Route 480, from Route 280 near Harrison Street in San Francisco to the junction of Route 1, Funston approach, and the approach to the Golden Gate Bridge. Transfer the portion from Marina Boulevard to the approach to the Golden Gate Bridge to Route 101. (SB 181, Chapter 498)

1992

1992 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 1	LRN 56 LRN 2		CA 1	Change	Delete the previous Vandenberg AFB clarification and change the segment to read "Route 101 near Las Cruces to Route 101 near Pismo Beach via the vicinity of Lompoc, Vandenberg Air Force Base, and Guadalupe." (Chapter 1243)
CA 41	LRN 125		CA 41	Change	Change (b) from "near Fresno" to "in Fresno" (Chapter 1243)
CA 46	LRN 33		CA 46	Change	Clarify origin of (b): "Route 101 in Paso Robles" (Chapter 1243)
CA 68	LRN 262 LRN 117		CA 68	Change	Change "Beach State Park" to "State Beach" in (a); change (b) to "Route 101 in Salinas" (Chapter 1243)
CA 72	LRN 2	US 101	CA 72	Truncate	Delete segment from Atlantic Blvd to Downey Road and condition (b). Current definition is “Route 39 to Atlantic Boulevard near the City of Los Angeles” (Chapter 1243)
US 101	LRN 2		US 101	Reword	Combine (a) and (b): "(a) Route 5 near Seventh Street in Los Angeles to Route 1, Funston approach, and the approach to the Golden Gate Bridge in the Presidio of San Francisco via Santa Barbara, San Luis Obispo, and Salinas." (Chapter 1243)
I-105			I-105	Change	Change origin to "Pershing Drive near El Segundo". (Chapter 1243)
CA 129	LRN 67		CA 129	Clairfy	Relax terminus: "...to Route 101 in San Benito County." (Chapter 1243)
CA 135	LRN 2		CA 135	Clarify	Clarify terminus of (b): "... to Route 101 ~~north of~~ in Santa Maria." (Chapter 1243)
CA 144	LRN 80		CA 144	Clarify	Change origin: "Route 101 ~~near~~ in Santa Barbara to …" (Chapter 1243)
CA 159	LRN 165	CA 11	(none)	Delete	Delete remainder of route. (Chapter 1243)
CA 175	LRN 89		CA 175	Clarify	Clarify (b): “(b) Route 29 near Kelseyville to Route 29 near Middletown.” (Chapter 1243)
CA 183	LRN 118		CA 183	Clarify	Clarify: "Route 101 ~~near~~ in Salinas to Route 1 near Castroville." (Chapter 1243)
CA 224	LRN 152		(none)	Clarify	Clarify: “Route 101 ~~near~~ in Carpinteria to Carpinteria State Beach ~~Park~~”. (Chapter 1243)
CA 227	LRN 147		CA 227	Clarify	Clarify: “Route 1 south of Oceano to Route 101 in ~~near~~ San Luis Obispo.” (Chapter 1243)
CA 248	LRN 161	US 66, CA 248	(none)	Delete	Delete route: E city limits of Pasadena to Mountain Avenue E of Monrovia (Chapter 1243)
CA 254	LRN 1		CA 254	Clarify	Relax definition: “the Avenue of the Giants, comprising a portion of the former Redwood Highway through and connecting a number of state park units, from Route 101 near the Sylvandale interchange to Route 101 ~~one-tenth of a mile north of Jordan Creek~~ south of Stafford.” (Chapter 1243)

1994

The state’s gas tax reached 18 cents a gallon. After the January 17 Northridge earthquake in Los Angeles, Caltrans reconstructed I-5/Route 14, the Gavan Canyon Bridge, and the Santa Monica Freeway I-10 in record time.

Notable changes in 1994 were the deletion of a number of routes in the San Diego Freeay plan, and the adjustment of routes around the port of entry.

1994 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 4	LRN 75	CA 4 CA 24	CA 4	Change	Split segment (a) into (a) Route 80 in Hercules to Route 5 in Stockton via north of Concord and via Antioch. (b) Route 5 to Route 99. (Chapter 1220)
CA 7			CA 7	Clarify	"from the northerly boundary of the Federal Port of Entry near Calexico to Route 8 near El Centro." (Chapter 1220)
CA 11			CA 11	Define	Entry Port near Otay Mesa to Route 125 (Chapter 1220)
CA 18	LRN 26 LRN 43	CA 18	CA 18	Clarify	Split segment (a) into "(a) Route 10 near San Bernardino to Route 30. (b) Route 10 [sic] near San Bernardino to Route 15 in Victorville via Big Bear Lake." (Chapter 1220)
CA 26	LRN 5	CA 8	CA 26	Truncate	Delete original segment (a); in original (b) [now (a)], change "Route 12" to "Route 12 at Valley Springs". (Chapter 1220)
CA 53	LRN 49		CA 53	Reroute	Change "Lower Lake" to "Clearlake" (Chapter 1220)
CA 60	LRN 19	US 60	CA 60	Clarify	Change origin to "Route 215 near Moreno Valley" (Chapter 1220)
CA 71	LRN 77		CA 71	Clarify	Clarify terminus as "Route 91 via Pomona and Chino Hills." (Chapter 1220)
CA 91	LRN 43	US 91	CA 91	Clarify	Clarify terminus as "Route 215 in Riverside via Santa Ana Canyon." (Chapter 1220)
CA 128	LRN 48 LRN 1		CA 128	Clarify	In (a): Relax origin: "(a) Route 1 near the mouth of the Navarro River to Route 101 near Cloverdale." (Chapter 1220)
CA 157	LRN 285	CA 157	(none)	Delete	I-805 near Ocean View Blvd to Route 125 near Sweetwater Reservoir (Chapter 1220)
CA 171	LRN 284	CA 171	(none)	Delete	I-5 near San Diego to I-805 via Switzer Canyon (Chapter 1220)
CA 175	LRN 16 LRN 89		CA 175	Clarify	Clarify routing: “(a) Route 101 at Hopland to Route 29 near Lakeport. (b) Route 29 near Kelseyville to Route 29 ~~near~~ at Middletown.” (Chapter 1220)
CA 187	LRN 163		CA 187	Truncate	Delete the South city limits of the City of Santa Monica to Lincoln Boulevard, changing the origin to "Lincoln Boulevard". (Chapter 1220)
CA 215	LRN 78 LRN 43 LRN 31		I-215	Clarify	Clarify: “Route 15 near Temecula to Route 15 near Devore via Riverside and San Bernardino ~~and passing near Riverside~~.” (Chapter 1220)
CA 244	LRN 288	CA 244	CA 244	Delete	Delete from Auburn Blvd to Fair Oaks Blvd: “Route 80 to ~~Fair Oaks Boulevard near San Juan Avenue~~ Auburn Boulevard in Carmichael.” (Chapter 1220)
CA 247	LRN 187		CA 247	Clarify	Clarify: “(b) Route 18 near Lucerne Valley to Route 15 ~~near~~ in Barstow.” (Chapter 1220)
CA 252	LRN 283	CA 252	(none)	Delete	Delete routing: Route 5 to Route 805 near the north city limits of National City. (Chapter 1220)
CA 255	(none)		CA 255	Clarify	Clarify routing: “Route 101 in Eureka to Route 101 in ~~near~~ Arcata via the Humboldt Bay Bridge and the Samoa Peninsula” (Chapter 1220)
CA 256	LRN 3	CA 65, CA 256	(none)	Delete	Delete route - Roseville to Roseville (Chapter 1220)

1996

1996 saw the final rearrangement of the Orange County Toll Roads: The extension of Route 133 and the deletion of Route 231, and adjustments to Route 241 and Route 261. The death of Route 111 began, and the rearrangement and death of the Metropolitan Bypass was acknowledge through changes to Route 48 and Route 138. This also start the start of relinquishment frenzy, but I opted to keep 1996 in this phase given the Orange County changes were the last burst of addition to the Freeway System.

1996 Route	LRN	Former Signage	Present Route (R) and Signage (S)	Action	Segment
CA 18			CA 18	Change	Correct typo in segment (b): change "Route 10" to "Route 30". (Chapter 1154)
CA 48	LRN 267		CA 48		Truncate origin to "Route 14 near Lancaster" (Chapter 10)
CA 111	LRN 187	CA 111	(none)	Delete	Delete W limits of Cathedral City to SE limits of Rancho Mirage. This split (c) into "(c) Route 10 near Indio to the southeast city limit of Rancho Mirage. (d) West city limits of Cathedral City to Route 10 near Whitewater, passing near Palm Desert." (Chapter 1154)
CA 133		CA 231	CA 133	Transfer	Extend to terminate at Route 241. This extension came from a transfer of the portion of the route from former Route 231 to Route 241 from Route 231 (Chapter 1154)
CA 138	LRN 59 LRN 267 LRN 188	CA 48	CA 138	Reroute	Move route onto portion of former Route 48 and split: "(a) Route 5 near Gorman to Route 14 near Lancaster. (b) Route 14 near Palmdale to Route 18 near Crestline." (Chapter 10)
CA 145	LRN 126		CA 145	Other	Authorize relinquishment to the City of Madera the portion of Route 145 located between Gateway Drive and Lake Street. (AB 2246, Chapter 540)
CA 224	LRN 152	CA 224	(none)	Delete	Delete: US 101 near Carpinteria and the Carpinteria Beach State Park (Chapter 1154)
CA 231	(none)	CA 231, CA 261	CA 133	Transfer	To Route 133: Route 133 to Route 241 (Chapter 1154)
	(none)	CA 231, CA 241	CA 241	Transfer	To Route 241: Route 241 to Route 91 (Chapter 1154)
	(none)	CA 231	(none)	Delete	Route 261 to Route 241 (Chapter 1154)
CA 241	(none)	CA 231 CA 241	CA 241	Extend	Extend: “Route 5 south of San Clemente to Route 91 in the City of Anaheim ~~Route 231 near the Cities of Tustin and Irvine~~”. (Chapter 1154)
CA 261	(none)	CA 231 CA 261	CA 261	Extend	Change origin; renumber Route 231: “~~Route 5 near the border of the Cities of Tustin and Irvine~~ Walnut Avenue in the City of Irvine to ~~Route 231~~ Route 241.” (Chapter 1154)
CA 275	LRN 6	CA 275 US 99W US 40	(none)	Delete	Deleted route: US 50 near Westacre Rd W of Sacramento to the junction of Capitol Ave and Ninth St in Sacramento (Chapter 1154)

Phase V: Modern Growth (1963-1969) Phase VII: Local Control and Relinquishments (1997-Present)

California Highways: www.cahighways.org