1964 state highway renumbering (California)

In 1963 and 1964, the California Division of Highways implemented a major renumbering of its state highways. The majority of sign routes — those marked for the public — kept their numbers; the main changes were to the legislative routes, which had their numbers changed to match the sign routes. A large number of formerly unsigned routes received sign numbers corresponding to their new legislative numbers. A smaller change was the removal of many U.S. Routes in favor of the Interstate Highways (designated in 1959), and the renumbering of State Routes that conflicted with Interstate numbers. Some U.S. Routes that were officially removed continued to be signed until the replacement Interstates were completed.

The state law authorizing the renumbering was passed September 20, 1963. Signage changes took place by July 1, 1964.

U.S. Routes

U.S. Route 6 was truncated to Bishop. The part south of Bishop was replaced by U.S. Route 395, State Route 14, Interstate 5, State Route 11 (now renumbered Interstate 110
Interstate 110 (California)
Route 110, consisting of two segments of State Route 110 joined by Interstate 110 , is a state highway in the Los Angeles area of the U.S. state of California, mostly built to freeway standards...

), and State Route 1 to the old U.S. 6 terminus at the Los Alamitos traffic circle east of Long Beach.
U.S. Route 40 became Interstate 80.
U.S. Route 40 Alternate became new State Route 113 and State Route 70.
U.S. Route 40 Business became new State Route 123.
U.S. Route 50 was truncated to Sacramento. West from Sacramento, it became new State Route 99, existing State Route 4
State Route 4 (California)
State Route 4 is a state highway in the U.S. state of California, routed from Interstate 80 in the San Francisco Bay Area to State Route 89 in the Sierra Nevada. It passes through Ebbetts Pass and contains the Ebbetts Pass Scenic Byway, a National Scenic Byway.SR 4 roughly parallels the...

, Interstate 5, Interstate 205
Interstate 205 (California)
Interstate 205 is a short Interstate Highway that connects Interstate 5 with Interstate 580 in the San Joaquin Valley of California. Along with those highways, I-205 forms the north side of a triangle around the city of Tracy...

, Interstate 580
Interstate 580 (California)
Interstate 580 is an 80-mile east–west Interstate Highway in Northern California. The heavily traveled spur route of Interstate 80 runs from San Rafael in the San Francisco Bay Area to Interstate 5 near Tracy in the Central Valley...

, and Interstate 80.
U.S. Route 60 became Interstate 10 east of Beaumont and the new State Route 60 west from Beaumont to the East L.A. interchange.
U.S. Route 66 was truncated to Pasadena, becoming State Route 11 (from U.S. Route 66 Alternate) and an extension of State Route 2
State Route 2 (California)
State Route 2 is a state highway in the U.S. state of California. It runs from the junction of Lincoln Blvd and Interstate 10 in Santa Monica to SR 138 east of Wrightwood, running concurrent with U.S...

. East of Pasadena, it was continued to be signed, but was officially State Route 248, Interstate 210
Interstate 210 (California)
Interstate 210 and State Route 210 together form a contiguous highway, called the Foothill Freeway, in the Greater Los Angeles area of the U.S. state of California. The western portion of the route is an auxiliary Interstate Highway, while the eastern portion is a state highway...

, State Route 30 (extended from its pre-1964 route), State Route 66
State Route 66 (California)
State Route 66 is a state highway in the U.S. state of California, running along a section of old U.S. Route 66 from La Verne east to San Bernardino, passing through Claremont, Upland, Rancho Cucamonga, Fontana and Rialto along Foothill Boulevard...

, Interstate 15 and Interstate 40.
U.S. Route 66 Alternate became State Route 159.
U.S. Route 70 became Interstate 10 and was eliminated in California (it now terminates in Globe, Arizona).
U.S. Route 80 became Interstate 8.
U.S. Route 91 became existing State Route 19
State Route 19 (California)
State Route 19 , also known as Lakewood Boulevard and Rosemead Boulevard, is a state highway in the Los Angeles area of the U.S. state of California...

, new State Route 214, part of new State Route 91, and Interstate 15.
U.S. Route 99 was eliminated, along with U.S. Route 99E and U.S. Route 99W. South of Sacramento, US 99 became an extended State Route 111, a new State Route 86, Interstate 10, Interstate 5, and State Route 99. US 99E became Interstate 80, an extended State Route 65, a new State Route 70, and State Route 99, while US 99W became Interstate 80, a new State Route 113, and Interstate 5. US 99 north of the merge also became Interstate 5.
U.S. Route 101 was truncated to Los Angeles, and was replaced by Interstate 5.
U.S. Route 101 Bypass in the San Francisco Bay Area
San Francisco Bay Area
The San Francisco Bay Area, commonly known as the Bay Area, is a populated region that surrounds the San Francisco and San Pablo estuaries in Northern California. The region encompasses metropolitan areas of San Francisco, Oakland, and San Jose, along with smaller urban and rural areas...

became a relocated U.S. Route 101.
U.S. Route 101 Alternate in Southern California became part of an extended State Route 1.
U.S. Route 101 Alternate from San Jose to San Francisco became a new State Route 82.
U.S. Route 299 became the majority of the new State Route 299.
U.S. Route 399 became an extension (and relocation) of State Route 33 and a new State Route 119.
U.S. Route 466 became a relocation of State Route 41, a new State Route 46, a new State Route 58, and Interstate 15.
U.S. Route 95
U.S. Route 95 in California
In the U.S. state of California, U.S. Route 95 traverses through the far eastern edges of both Riverside and San Bernardino counties. US 95 serves Blythe and Needles and junctions with SR 62 at Vidal Junction....

, U.S. Route 97, U.S. Route 199 and U.S. Route 395 remained the same. (US 395 has since been truncated at Adelanto. and is now Interstate 15 and State Route 163
State Route 163 (California)
State Route 163 , the Cabrillo Freeway, is a state highway in San Diego, California. It is an 11-mile stretch of freeway which was once the southern end of U.S. Route 395, the San Diego portion of which was eliminated in 1972...

.)

State Routes

All available numbers up to and including State Route 255 were assigned in 1964; State Route 256 and on were assigned starting in 1965.

State Route 1 was extended south along U.S. Route 101 Alternate.
State Route 2
State Route 2 (California)
State Route 2 is a state highway in the U.S. state of California. It runs from the junction of Lincoln Blvd and Interstate 10 in Santa Monica to SR 138 east of Wrightwood, running concurrent with U.S...

was extended west along U.S. Route 66.
State Route 7
State Route 7 (California)
State Route 7 is a state highway in the U.S. state of California, running from the U.S.-Mexico border east of Calexico north to its terminus at Interstate 8 , where Orchard Road continues the route north towards Holtville. The route provides convenient access to the country of Mexico from I-8...

replaced State Route 15
State Route 15 (California)
State Route 15 in the U.S. state of California is the seamless 5.59-mile freeway continuation of Interstate 15 past its southern terminus at Interstate 8 in San Diego to the Interstate 5 junction from the Mexican border...

because of Interstate 15.
State Route 9 was shortened and relocated along a formerly unsigned state route.
State Route 14 replaced part of U.S. Route 6. Former SR 14 became part of State Route 91.
State Route 26 replaced State Route 8 because of Interstate 8. Former SR 26 became part of Interstate 10.
State Route 33 was extended south along U.S. Route 399.
State Route 35 replaced State Route 5 because of Interstate 5. Former SR 35 became Interstate 605.
State Route 42
State Route 42 (California)
State Route 42 was a state highway in southern region of the U.S. State of California, running along Manchester Avenue, Manchester Boulevard and Firestone Boulevard in Los Angeles and the cities south of it. After 1968, it ran from State Route 1 west of Inglewood east to Interstate 5 in Norwalk...

had replaced State Route 10 several years before the 1964 renumbering, due to the closeness of Interstate 10.
State Route 46 replaced part of U.S. Route 466.
State Route 58 replaced part of U.S. Route 466. The new number was the same as the old legislative number, possibly by coincidence.
State Route 60 replaced part of U.S. Route 60, as well as a new alignment.
State Route 65 was relocated and extended north to replace part of U.S. Route 99E.
State Route 66
State Route 66 (California)
State Route 66 is a state highway in the U.S. state of California, running along a section of old U.S. Route 66 from La Verne east to San Bernardino, passing through Claremont, Upland, Rancho Cucamonga, Fontana and Rialto along Foothill Boulevard...

replaced part of U.S. Route 66.
State Route 69 replaced part of relocated State Route 65.
State Route 70 replaced parts of truncated State Route 24 and former U.S. Route 40 Alternate.
State Route 82 replaced part of relocated U.S. Route 101.
State Route 86 replaced part of U.S. Route 99.
State Route 91 replaced State Route 14 and part of U.S. Route 91.
State Route 99 replaced much of U.S. Route 99 and U.S. Route 99E, with a new alignment between Sacramento and Olivehurst.
State Route 113 replaced parts of U.S. Route 99W and U.S. Route 40 Alternate.
State Route 119 replaced part of U.S. Route 399.
State Route 237 replaced part of State Route 9.
State Route 238 replaced part of State Route 9.
State Route 273 replaced part of U.S. Route 99.
State Route 299 replaced U.S. Route 299.

External links

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