The pipe is installed in a shoe set on a cross beam supported by a pair of vertical supports, buried deep in the ground. The installation of more than 78,000 of the vertical support members was completed in October., 1977-01, PCA0002-4a-18, Folder: PCA0002-4a. 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/17729 Accessed February 22, 2025.