On July 6, 2021 at 6 pm, I will be giving a presentation for the Historic Highway 99 Association of California on the history of US 99 through the San Gorgonio Pass. The route will be covered from Thousand Palms to Calimesa. Photos of the route, new and old, as well as maps showing the various alignments will be shown. Come join us!
https://zoom.us/meeting/register/tJEqd-moqj4vHdJw6RL5SEOPiOfdgV2J3M4G
From the Archives –
This map of the Lake Elsinore area comes to us from San Diego County dating from November 1883. At the time, Elsinore was a part of San Diego County. In 1893, this area became a part of Riverside County.
This photo shows the I-10 / I-215 interchange in San Bernardino, California as it existed in 1958. At the time, those numbers didn’t quite exist. Back then, this was the junction of US 70, US 91, US 99, US 395, and State 18. The view is looking south along what is now I-215 with the Santa Ana River bridges in the foreground. The bridge to the left was US 99 until the 1930’s. The two bridges to the right are still around, though widened.
Curious about those sirens around Los Angeles? This person mapped them all and has information about each one as well.
Five miles east of Santa Margarita, State 58 crosses the Salinas River. Until 1996, the highway crossed via this 1914 Parker truss span. From 1934 to 1964, the bridge was crossed by State 178, which became State 58 in 1964. The approach to the old bridge included two sharp curves at either end, which the new concrete bridge (49-0237) and alignment eliminated. Today, it is closed to motor vehicle traffic and marked as a Historic Bridge. The new bridge is to the north of this at SLO-58-R4.8.