Sixty-two of the valves are remote gate valves, operated electronically from the operations control center at the Valdez terminal or from the closest pump station., 1977-01, PCA0002-4a-29, 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/17740 Accessed February 22, 2025.