In the Central Valley, some jokingly call these concrete structures their own “Stonehenge.” Ideally, these bridges and viaducts will one day be used to support California's high-speed rail, which was supposed to run from Los Angeles to San Francisco. For some in the Central Valley, they have become monuments to unmet promises. The irony: In the 1800s, American railroads were the envy of the world. #train #highspeedtrain #california