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Workers on powerhouse roof laying rebar, August 3, 1925
1. Workers on powerhouse roof laying rebar, August 3, 1925
Workers on the roof of the powerhouse laying rebar, August 3, 1925
2. Workers on the roof of the powerhouse laying rebar, August 3, 1925
Man standing in concrete-lined tunnel between dam and the four penstocks going to the powerhouse, October
3. Man standing in concrete-lined tunnel between dam and the four penstocks going to the powerhouse, October 22, 1925
Powerhouse interior showing generating unit no. 2, August 13, 1925
4. Powerhouse interior showing generating unit no. 2, August 13, 1925
Powerhouse under construction, June 29, 1925
5. Powerhouse under construction, June 29, 1925
Powerhouse and dam during construction process, September 12, 1925
6. Powerhouse and dam during construction process, September 12, 1925
Powerhouse foundation, showing draft tubes for generating units, May 12, 1925
7. Powerhouse foundation, showing draft tubes for generating units, May 12, 1925
Powerhouse after dam completion, October 20, 1925
8. Powerhouse after dam completion, October 20, 1925
First generator installed at the powerhouse, July 20, 1911
9. First generator installed at the powerhouse, July 20, 1911
Partially completed powerhouse and penstocks, with view of railroad and cable line, June 26, 1904
10. Partially completed powerhouse and penstocks, with view of railroad and cable line, June 26, 1904
Boulder spillway construction near the headworks and diversion dam, June 6, 1911
11. Boulder spillway construction near the headworks and diversion dam, June 6, 1911
Control room, Diablo Powerhouse, July 1989
12. Control room, Diablo Powerhouse, July 1989
Gorge Powerhouse showing Mount Ross to the north, ca. 1930
13. Gorge Powerhouse showing Mount Ross to the north, ca. 1930
Reinforcing mat and rock formation that will be below the no. 1 generating unit in the powerhouse, May
14. Reinforcing mat and rock formation that will be below the no. 1 generating unit in the powerhouse, May 8, 1925
Transformer house and shop at the top of Snoqualmie Falls, ca. 1900
15. Transformer house and shop at the top of Snoqualmie Falls, ca. 1900
Hydroelectric power plant on the Snoqualmie River above the falls with Mount Si in the background, 1908
16. Hydroelectric power plant on the Snoqualmie River above the falls with Mount Si in the background, 1908
Interior of construction power plant at Newhalem, January 6, 1924
17. Interior of construction power plant at Newhalem, January 6, 1924
Woman standing in mouth of penstock tunnel, Gorge Dam Powerhouse, April 1, 1924
18. Woman standing in mouth of penstock tunnel, Gorge Dam Powerhouse, April 1, 1924
Gorge Dam Powerhouse and bridge over the Skagit River, March 2, 1928
19. Gorge Dam Powerhouse and bridge over the Skagit River, March 2, 1928
Patch of Bear Grass, n.d.
20. Patch of Bear Grass, n.d.
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