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