Category Archives: Caltrans

US 6 – Santa Clara River Bridge – A Closer Look

US Highway 6, now known as Sierra Highway, crossed the Santa Clara River near Solemint, California. The bridge it originally used, constructed in 1938, is planned to be replaced in the near future. This bridge is one of the oldest remaining in the Santa Clarita area and is the longest span on former US 6 in California. The bridge has remained almost intact from its original construction. The only changes have been minor to the bridge itself. The highway, however, has changed quite a bit. In 1968, Sierra Highway, then State Route 14, was widened to four lanes. A second bridge for northbound traffic was added, with the original bridge being used for southbound traffic.

Presently, Sierra Highway is six lanes wide at the river crossing. As the bridges were built with a four-lane highway in mind, only a narrow shoulder along both directions exists. This condition is one of the reasons the bridges across the Santa Clara River are being replaced.

In March of 2017, I took a trip to inspect in more detail the bridge and the surrounding area. It was nice to see the bridge again, as it brought back a lot of memories. I used to live near the bridge and crossed it almost daily. It will be sad to see it go as it is one of the last remaining pieces of the old highway. So, please, check it out yourself while you still can. I’m not quite sure when the construction will begin, it may have already.

Main Structure:

Side view, from the northern end. Note the small arches along each span.
Southern abutment and wing wall.
Between the 1938 and 1968 spans. Quite a difference between the girders.
Deck view, looking northerly from the south end.
Side view showing the railing, arched spans, and wing wall.

Detailing:

Underside view of the bridge.
Closeup of the west side railing from the south end of the bridge.
View showing the railing at the expansion joint.
Expansion joint that may have moved during an earthquake or from settling.
Expansion joint along the bridge deck.
Deck drain detail.
Remaining section of railroad rail and wire fence embankment protection.

Adopt-A-Highway Cleanup – May 20, 2017

On May 20, 2017, I am planning a cleanup of my section on I-5 in Grapevine Canyon. Specifically, this is KER-005-6.0/8.0. For those interested in joining, please send us a message to add your name to the list. The plan, thus far, is to meet in Lebec in the morning and carpool to the cleanup site to reduce the number of vehicles along the roadway. Let us know as soon as possible if you are interested in joining us. A partial tour of the remaining sections of US 99 and the Ridge Route in Grapevine Canyon, including Deadman’s Curve, will also be included in the cleanup.

Image of the Week – 4/25/2017

State 79 at Samagatuma Creek with new bridge railing. This is a new style of metal railing that Caltrans has been installing on bridges lately.

Image of the Week – 4/9/2017

I-8 at Laguna Summit, looking east. This will be my newest section of Adopt-A-Highway in the near future.

Image of the Week – 3/26/2017

Taylor St at US 80 (Now I-8) in 1960, looking east

Image of the Week – 3/19/2017

Old US 395 at Rush Creek in Mono County, CA near Mono Lake.

Image of the Week – 2/27/2017

I-5 and State 56 in Sorrento Valley, CA

Image of the Week – 2/16/2017

Elk grazing in the reserve to the east of current US 395 near Fish Springs in the Owens Valley.

New Ridge Route Video, sort of

After finally resolving some software issues, I have finally been able to start editing and posting videos again. My most recent one was taken in November 2015 along the Ridge Route from near Liebre Summit. It shows some of the issues the road is facing presently regarding erosion and a lack of maintenance.

Image of the Week – 2/9/2017

Walker Pass with an ACSC sign and 178 shield.