Adding sections of US 60 and SR 18.

Added SR 18.

Corrected a mistake. Valley Boulevard used to be called I Street, not Colton Avenue.

Adding another alignment of US 99

Added 1935 routing of US 99 through Colton.

Added old US 91 between Cajon Boulevard and Colton.

Removed 1985 end dates from Part of US 66. US 66 was removed from California before 1985. I'll add the correct dates later.

Fixed wrong street names.

Adding part of US 395 to the map.

Adding part of US 395 to the map. It appears the northernmost section of La Cadena Drive (then 8th Street) was always divided throughout the existence of US 395. Older maps and satellite images show a trolley line dividing the street.

Adding part of US 395 to the map.

Adding part of US 395 to the map.

Adding part of US 395 to the map.

Adding part of US 395 to the map.

Adding part of US 395 to the map.

Added a small section of US 99 in San Bernardino.

Added part of US 395 in San Bernardino. This is also the original alignment of US 91. When the Barstow Freeway/Riverside Freeway alignment from 1959 and 1960 is finished, I'll move the start date of "Route 91" to 1959 and 1960 respectively.

Changing Part of the "Route 91" geometry to match the Barstow Freeway upon first opening in 1959 and 1960. The intent is to make this the 1959-1964 alignment of US 91, and add the earlier alignment to "Route 66".

Changing Part of the "Route 91" geometry to match the Barstow Freeway upon first opening in 1959 and 1960. The intent is to make this the 1959-1964 alignment of US 91, and add the earlier alignment to "Route 66".

Changing Part of the "Route 91" geometry to match the Barstow Freeway upon first opening in 1959 and 1960. The intent is to make this the 1959-1964 alignment of US 91, and add the earlier alignment to "Route 66".