The State Road Commission of West Virginia, Plan and Profile for Construction of State Road, Route Number Interstate 77, Washington County, Ohio and Wood County, West Virginia, Williamstown-Marietta Bridge, over the Ohio River, Blueprints, August-November 1965

The State Road Commission of West Virginia, Plan and Profile for Construction of State Road, Route Number Interstate 77, Washington County, Ohio and Wood County, West Virginia, Williamstown-Marietta Bridge, over the Ohio River, Blueprints, August-November 1965, Box: 102, Item: 268. Institute for the History of Technology and Industrial Archaeology Records, A&M 3936. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/155992 Accessed January 23, 2025.