|December 2013 (38.54974 Degrees, -122.35629 Degrees) Chiles Pope Valley Road Bridge|
Bridgehunter Website that the concrete portion has a corrugated metal liner, which must have been used for formwork to cast the widening and then removed.
Napa County, California Bridges: Chiles Pope Valley Road Bridge across North Branch of Chiles Creek by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Love the tour of the bridges. Regarding the construction method of the concrete. It seems to me, based on old photos from other bridges that the concrete form would have been 2x6 timber forming the arch over the temporary structure rather then a corrugated metal form...this is my observation.
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