The wall is anchored in bedrock and built of precast concrete panels. Galvanized steel straps, equal in length to the height of the particular wall are extended behind the walls in layers during the filling and compacting process., 1976-07, PCA0002-2a-77, Folder: PCA0002-2a. Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977, PCA 2. Alaska State Library - Historical Collections Finding Aids. https://alaska.libraryhost.com/repositories/2/archival_objects/17496 Accessed February 22, 2025.