US 99 – Castaic Creek

Historical Tour of old US 99

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Castaic Creek / Hasley Canyon Road

Side view from the west.
Side view from the west.
View from the south end.
View from the south end.
Date stamp on the south end of the bridge.
Date stamp on the south end of the bridge.
Bridge name and number painted on the southern end of the bridge.
Bridge name and number painted on the southern end of the bridge.

Shown here, US 99 crosses Castaic Creek (53-09). This bridge dates back to 1931 when US 99 was being widened to three lanes and realigned from Saugus Junction to Castaic. In 1951, this section of highway was widened from three lanes to a four lane expressway. When I-5 was built here in 1968, the 1951 bridge across this creek was demolished. Its location is beneath the southbound lanes. This, however, is not the only alignment through here. The piers visible in the photo below are from a bridge that was built in 1916. It was a through-girder type bridge that was also commonly used for railroads. I will try to get a photo of the old bridge here soon.

Map of both alignments over Castaic Creek. Dirt roadway to the left is the original alignment.
Map of both alignments over Castaic Creek. Dirt roadway to the left is the original alignment.
Piers for the 1916 bridge. The bridge itself was removed in 1932 and recycled as a bridge on the Ridge Route Alternate in Piru Gorge.
Piers for the 1916 bridge. The bridge itself was removed in 1932 and recycled as a bridge on the Ridge Route Alternate in Piru Gorge.
North bridge abutment and approach to the old bridge.
North bridge abutment and approach to the old bridge.
1966 view of Castaic Valley from Hasley Canyon looking north. Courtesy - Caltrans.
1966 view of Castaic Valley from Hasley Canyon looking north. Courtesy – Caltrans.

Go North on US 99 to Bakersfield

Go South on US 99 to Los Angeles

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