Hidden below I-5 just north of Valencia Blvd next to a drainage basin, a bit of US 99 history remains in Santa Clarita, California. A culvert, dating to 1929, has survived through an expressway upgrade in 1949, freeway construction in 1967, bridge replacement construction in 2001, and current widening work in 2022. How much longer it will last is unknown but so far it has withstood the test of time.
Highway 99 Presentation – Updated
On September 13, 2022, I will be giving a Zoom presentation for the Historic Highway 99 Association of California on the Ridge Route Alternate between Castaic and Tejon Pass. Come join the Association for the presentation! See the link below for details and to learn how to sign up. The original link for the meeting …

