US 66 was assigned by the
American Association of State Highway Officials in November 1926 and signed in 1928 by the
Automobile Club of Southern California; however, historic US 66 shields and even present day US 66 shields remain. US 66 continued to be signed east of
Pasadena until 1974, when it was removed, and the remaining separate section became SR 66. In 1977, "
Hotel California" alluded to Route 66 in its opening lines, "On a dark desert highway, cool wind in my hair, Warm smell of colitas rising up through the air, Up ahead in the distance, I saw a shimmering light, My head grew heavy and my sight grew dim, I had to stop for the night". According to
Eagles guitarist
Don Felder, "Everybody had driven into
Los Angeles on what used to be Route 66. And as you drive in through the
desert at night, you can see the glow of Los Angeles from a hundred miles away. The closer and closer you get, you start seeing all of these images, and these things pounded into our heads: the stars on
Hollywood Boulevard, movie stars,
palm trees, beaches and girls in
bikinis." Nationally, Route 66 has been a
decommissioned highway since 1985, with the last section through
Williams, Arizona, bypassed by
I-40 in 1984. The first efforts to return the route to maps as "Historic Route 66" date to 1987 and
Angel Delgadillo's Arizona Historic Route 66 Association. This initiative was soon followed in all eight US 66 states, including California. The
California Historic Route 66 Association, established in December 1990 to advocate the preservation, restoration and promotion of historic Route 66 in California, is the youngest of the eight state-level
Route 66 Associations. Because the sections of historic Route 66 that are within urban Los Angeles (San Bernardino to Santa Monica) are still dedicated streets, they remain as the most used and heavily traveled Route 66 segments. However, because of the heavy traffic and later non-historic development along these sections, they are generally the least traveled by Route 66 enthusiasts. Modern guide books that describe how to follow historic Route 66 frequently suggest that when arriving at San Bernardino from the east, enthusiasts should enter Interstate 10 as a bypass for these segments exiting near Santa Monica to experience today's terminus. In 2018,
U.S. Bicycle Route 66 was established that follows portions of historic Route 66 within California and other areas in the country. A portion of Route 66 in
San Bernardino county is closed for bridge repairs.
Old Trails Highway spanning the
Colorado River From San Bernardino to the
Arizona state line US 66 followed the old
National Old Trails Road. The old highway veers away from I-15 between
Victorville and
Barstow, following the railroad through
Oro Grande,
Helendale, and
Lenwood. Through Barstow, it is Main Street. East of Barstow, the National Old Trails Highway passes through
a Marine Corps base, limiting public access and forcing traffic onto I-40. From
Daggett, Historic 66 leaves I-40, crossing it three times before winding away through
Bagdad,
Amboy, and
Essex. US 66 was all paved in California by 1935. This area is desert; towns like Amboy originated as
Atlantic and Pacific Railroad stops and were sustained by Route 66 traffic during the Mother Road's heyday, then became ghost towns when I-40 bypassed them to the north. From Essex the highway was Goffs Road through
Goffs until about 1931, joining I-40 at the
US 95 exit. The later alignment is now I-40 east of Essex. The original highway winds around I-40 in the
Needles area, before crossing the
Colorado River into Arizona. ==Route description==