Bonanza Creek: In the river floodplain area, outside the river channel, the pipe is not coated with concrete, but is sunk to the bottom by concrete weights set atop the pipe., 1976-05, PCA0002-1b-23, 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/17361 Accessed May 23, 2025.