Yosemite National Park is one of America’s most beautiful and cherished national parks, and three beautiful concrete bridges with stone facing constructed from 1928-1932 and crossing the Merced River have been both functional and beautiful elements of the park since their construction. However their future is now threatened by short-sighted demolition plans. In response to this threat to the historic bridges, the National Trust for Historic Preservation has included the Bridges of Yosemite Valley this year as one of their annual listings of the 11 Most Endangered Historic Places in America. Click here to view the official listing on the National Trust website. The source of this demolition threat is the development of a comprehensive management plan for the Merced River in Yosemite National Park. The plan needlessly calls for the demolition of these historic bridges. Details about the Merced River Plan are available at the official website.