|March 2014 (37.12778, -122.12194) Bear Creek Road Bridge|
This is a county bridge, but it appears that bridge construction for both state and county bridges changed from concrete arch to steel and precast I girder bridges in the 1940s and 1950s.
Bear Creek Road is surrounded by residences and it's so densely forested that I couldn't see the bridge on Google earth. It carries traffic between SR 9 and SR 17 through mountainous terrain.
Santa Cruz County, California Bridges: Bear Creek Road across the San Lorenzo River by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.