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141.
Layers of reinforcing bars at the tunnel intake, September 8, 1925
142.
Bridges at the dam site and diversion tunnel entrance, June 30, 1924
143.
Bridge under construction over Cedar River at Masonry Dam, June 3, 1914
144.
Powerhouse and penstock under construction, January 2, 1904
145.
Dam construction on the Snoqualmie River, ca. 1898
146.
Powerhouse excavation, March 1, 1911
147.
Penstock site viewed from below powerhouse, January 2, 1904
148.
Excavation of the underground chamber for construction of the powerhouse, ca. 1899
149.
Hydroelectric power plant on the Snoqualmie River above the falls with Mount Si in the background, 1908
150.
Flume construction in Puyallup River canyon, December 31, 1903
151.
Hydroelectric plant intake, office, transformer house, and workers' cottages, on the Snoqualmie River above the falls, 1912
152.
Great Northern Railroad excursion train at Newhalem, June 7, 1924
153.
Engineer corps working at flume line site, April 23, 1903
154.
Masonry Dam under construction, May 17, 1913
155.
Diablo Dam Powerhouse under construction, April 30, 1931
156.
Large pipes used in construction of Diablo Dam Powerhouse, April 2, 1931
157.
Panoramic view of powerhouse and Puyallup River, April 17, 2004
158.
Construction on cable incline near county road, April 21, 1903
159.
Bird's-eye view of Ruby Inn and Skagit River, near proposed site of Ruby Dam, June 18, 1919
160.
Men working on a big cut for the railway spur at the powerhouse site, May 30, 1903
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