AS 25: In addition to river and road crossings, an activity that continued throughout the reporting period was the drilling and installation of vertical support members for above ground sections of the pipeline., 1976-03, PCA0002-1a-28, Folder: PCA0002-1a. 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/17304 Accessed February 22, 2025.