Amador County, California Bridges: Shenandoah Road across the South Fork of the Cosumnes River

March 2013 ( 38.54639° -120.73722°) Shenandoah Road Bridge

The last bridge (26C0014) across the South Fork of the Cosumnes River carries Shenandoah Road, which turns into Mt Aukum Road north of the county line. It's a single span, cast-in-place, prestressed box girder bridge that was built in 1985. Unlike the previous two South Fork Crossings, Shenandoah Road is classified as a major collector and the bridge carries 1970 vehicles a day. The bridge is in good condition and has a sufficiency rating of 93 out of 100.

Amador County, California Bridges: Shenandoah Road across the South Fork of the Cosumnes River by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.

Amador County, California Bridges: Lawrence Road across the South Fork of the Cosumnes River

March 2013 (38.5468°, -120.7240°) Lawrence Road Bridge

A little downstream from yesterday's Tyler Road Bridge is the two span, steel girder Lawrence Road Bridge (28C0028) across the South Fork of the Cosumnes River. Like the previously studied (3/16/2013) Sweeney Road Bridge (across the North Fork), this bridge is also made from the undercarriage of railroad cars. Apparently they are strong enough to support even large (28.9 ton) trucks. Unlike the Sweeney Road Bridge, the girder webs on the Lawrence Bridge still support the barrier rail but the deck is narrower on today's bridge. The Sweeney Road Bridge must have been made from two train cars sitting side by side for each span.  Both bridges have 32.5 ft spans, which must be the length of a railroad car. The Lawrence Bridge was built in 1960 and carries about 65 vehicles a day.

Amador County, California Bridges: Lawrence Road across the South Fork of the Cosumnes River by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.

Amador County, California Bridges: Tyler Road across the South Fork of the Cosumnes River

March 2013 (38.52778°, -120.68611°) Tyler Road Bridge

Three bridges cross the South Fork of the Cosumnes River and they all cross along the northern border of western Amador County. The easternmost bridge carries Tyler Road over the South Fork. It's a single span timber bridge that was built in 1945 and improved in 1988.

I was a little surprised that this bridge only carries 47 vehicles a day (as of 2003) since there are so few bridges over the river. The route classification is local (rural) and the sufficiency rating is 67.9 out of 100. I would imagine the improvements in 1988 included a new timber deck since the abutments appear old and without improvements.

Amador County, California Bridges: Tyler Road across the South Fork of the Cosumnes River by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.