PS2: Preparation for corridor work also began at the four stations, known as "pass through" stations, not required until the pipeline capacity is increased above the 1.2 million barrel initial daily operation capacity. This is station 2., 1976-05, PCA0002-1b-72, Folder: PCA0002-1b. 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/17410 Accessed February 22, 2025.