US 99 – Pico Canyon Road

US 99 Highway TourStop 14B · Los Angeles County · Post-1930 Alignment through Santa ClaritaReturn to US 99 Tour

Virtual Tour of US 99
Santa Clarita Valley

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Pico Canyon Road / Lyons Avenue

I-5 at Pico Canyon Road / Lyons Avenue looking north.
I-5 at Pico Canyon Road / Lyons Avenue looking north.

This section of US 99 was opened with three lanes in 1930. It was under construction through this area as early as 1928. In April 1949, US 99 was widened to a four-lane expressway from Pico Canyon Road to Saugus Junction. In 1951, the expressway was extended south to Weldon Summit. I-5 construction in 1967 greatly modified the roadway through here. Only a few culverts and a small section of the former northbound lanes converted to a frontage road (Hawkbryn Ave) remain from that old highway.

Road cut from 1929 next to the NB onramp from Lyons Ave.
Road cut from 1929 next to the NB onramp from Lyons Ave.
Looking south from Pico Canyon Road / Lyons Avenue in 1949. Courtesy – Caltrans
View north from Pico Canyon Road in 1949. The expressway ended here until 1951.
View north from Pico Canyon Road in 1949. The expressway ended here until 1951. Courtesy – Caltrans
Looking southerly from just south of McBean Parkway in 1949. Courtesy - Caltrans.
Looking southerly from just south of McBean Parkway in 1949. Courtesy – Caltrans.
South end of Hawkbryn Ave. Cracks in asphalt mark the 1930 concrete lanes below.
Former 1930 northbound and part of the middle lane almost visible along Hawkbryn Ave
1929 culvert beneath I-5 at Valencia Blvd.

Go West on Pico Canyon Road to Mentryville

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