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. 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. The intent is to make this the 1959-1964 alignment of US 91, and add the earlier alignment to "Route 66".

Added US 101 to part of downtown LA.

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

Added more of US 466.

Corrected gap in US 91 relation.

Corrected date on part of US 66/US 91/US 395.

Removed "Route 91" between Cajon Pass and Victorville. US 91 only took the old two lane US 66 over Cajon Pass or the four-lane US 66/US 91/US 395 expressway before decommissioning south of Barstow in 1964.

Added a tiny section of US 466.

Finished the 1958 US 66/US 91/US 395 expressway.

Finished the 1958 US 66/US 91/US 395 expressway.

Working on the 1958 US 66/US 91/US 395 expressway.

Working on the 1958 US 66/US 91/US 395 expressway.

Working on the 1958 US 66/US 91/US 395 expressway.

Working on the 1958 US 66/US 91/US 395 expressway.

Working on the 1958 US 66/US 91/US 395 expressway.

Modified geometry on US 66/US 91.

Added the start date for the Summit Inn along with changing it from a point to the historic building layout, prior to the fire in 2016.