SR-14U – Sierra Highway

SR-14U
Sierra Highway
Runs from near Newhall Ave (old San Fernando Road) to near Friendly Valley Pkwy in Santa Clarita

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This unusual signage exists along Sierra Highway (old Rte 14 and US 6) from San Fernando Road to Rainbow Glen Drive. This section is still maintained by Caltrans and is signed as 14U - Unrelinquished.

This unusual signage exists along Sierra Highway (old Rte 14 and US 6) from San Fernando Road to Rainbow Glen Drive. This section is still maintained by Caltrans and is signed as 14U – Unrelinquished.

20160821_092854
At Dockweiler Dr, Southbound.
20160821_092436
At Rainbow Glen Dr – Southbound.

From San Fernando Road (now Newhall Ave) to Rainbow Glen Drive, along Sierra Highway, there is an unusual situation. Sierra Highway used to be a part of Route 14 until about 1972 when the Antelope Valley Freeway was completed through here. Normally, the bypassed section of roadway gets relinquished to the local jurisdiction. In this case, it wasn’t as the local agency, Los Angeles County Public Works doesn’t want the roadway because of maintenance issues. The roadway passes through some low hills between Placerita Canyon Road and Golden Valley Road which crumble rather readily in most rain storms. Flooding also occurs along this stretch which further exacerbates the problem. As a result, the roadway remains under Caltrans maintenance and is still signed as 14U.

Sierra Highway between Placerita Canyon Road and Golden Valley Road.
Sierra Highway between Placerita Canyon Road and Golden Valley Road.
Easily eroded Saugus Formation conglomerates and shales near Placerita Canyon Road on Sierra Highway
Easily eroded Saugus Formation conglomerates and shales near Placerita Canyon Road on Sierra Highway
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