[Lake Union Steam Plant] Seattle Municipal Light and Power Plant - Second Unit of Auxilary Steam Plant - drawings - D R Huntington, Architect - includes piling plan and maps of waterways 7 and 8, 1917, Cabinet: 15-1, Folder: 1. City Light Plans and Drawings, 1202-08. Seattle Municipal Archives. https://leglas100/finding-aids/repositories/2/archival_objects/3696 Accessed May 27, 2026.