| Image | Title | Description | Date |
|---|---|---|---|
| Concrete pump, also known as a concrete gun, in penstock, Gorge Dam, January 12, 1924 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: Penstock Congrete Gun, 1-12-24.... |
1924 1924 |
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| Workers on inspection jumbo in tunnel, showing steel tunnel forms, bulkhead, and concrete gun discharge pipe, Gorge Dam, November 25, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: Steel Tunnel Forms, showing bulkhead & concrete gun... |
1923 1923 |
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| Dam construction at headworks, October 6, 1910 | Construction photographs of the White River Power Plant, a hydroelectric facility on the White River, built by the Pacific Coast Power Company, 1909-1911. This company was acquired by Puget Sound Traction, Light & Power Company in 1912.<br><br>Caption on image: Dam site at... |
1910 1910 |
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| Man standing outside commissary at Gorge Dam construction camp at Newhalem, February 15, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: Snow Drift at Commissary, 2-15-23.... |
1923 1923 |
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| Interior of concrete-lined tunnel constructed to carry water from the Gorge Dam reservoir to the Powerhouse, September 21, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: 5183. 9-21-23<br><br>Caption below image:... |
1923 1923 |
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| Workers standing in end of penstock pipe for power generating unit no. 3, Gorge Dam Powerhouse, August 13, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>A penstock is a conduit or pipe for concentrating the flow of water from... |
1923 1923 |
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| Workers installing speed ring in unit 1, Gorge Dam Powerhouse, August 13, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: Speed Ring, Unit #1, Gorge Plant, 8-13-23.... |
1923 1923 |
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| Stator and rotor of unit no. 1 turbine and rotor of unit no. 2 turbine under construction, Gorge Dam Powerhouse, November 27, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>The turbine is coupled to an electric generator by a long shaft. The... |
1923 1923 |
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| Man standing beside gate ring on power generating unit no. 1, Gorge Dam Powerhouse, August 22, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: Gorge Plant. Gate Ring, Unit #1, 8-22-23.... |
1923 1923 |
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| Man standing among reinforcing steel for draft tube on unit no. 1, Gorge Dam Powerhouse, February 23, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: Reinforcing Steel for Draft Tube #1, 2-23-23. E277... |
1923 1923 |
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| Gorge Dam Powerhouse foundations, as seen from the west, January 19, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: Power House Foundations from W., Units #1 & 2.... |
1923 1923 |
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| Flume construction showing Mount Rainier in background, December 30, 1903 | Construction photographs of the Electron Plant, a hydroelectric facility on the Puyallup River, built by the Puget Sound Power Company, 1902-1904. This company was acquired by Puget Sound Traction, Light and Power Company in 1912.<br><br>Handwritten on image: No. 192. Dec. 30,... |
1903 1903 |
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| Gorge Dam Powerhouse, West Portal of tunnel, and bridge, as seen from across the Skagit River, looking southeast, May 23, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961.<br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: Power House and West Portal Plants from across the River,... |
1923 1923 |
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| Flume construction near Buckley, November 1, 1910 | Construction photographs of the White River Power Plant, a hydroelectric facility on the White River, built by the Pacific Coast Power Company, 1909-1911. This company was acquired by Puget Sound Traction, Light & Power Company in 1912.<br><br>Caption on image: Trestle for flume... |
1910 1910 |
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| Construction activities at Larner-Johnson flow control valve and scroll case in power generating unit no. 1, Gorge Dam Powerhouse, August 10, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Water flows from the penstock through the dam and into a spiral... |
1923 1923 |
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| Scroll case and Larner-Johnson flow control valve in unit no. 1 under construction, Gorge Dam Powerhouse, August 13, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Water flows from the penstock through the dam and into a spiral... |
1923 1923 |
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| Man standing inside Larner-Johnson flow control valve during installation at Gorge Dam Powerhouse, August 22, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Water flows from the penstock through the dam and into a spiral... |
1923 1923 |
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| Workers with a concrete pump, also known as a concrete gun, showing 5 yard concrete car and gas locomotive in tunnel, Gorge Dam, November 4, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: Concrete Gun, showing 5 yard concrete car and gas... |
1923 1923 |
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| Workers beside Larner-Johnson flow control valve, draft tube and a portion of scroll case, unit no. 2, Gorge Dam Powerhouse, September 26, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: No. 2 Johnson Valve, Draft Tube and portion of Scroll,... |
1923 1923 |
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| Rotor spider on unit no. 1 turbine, Gorge Dam Powerhouse, September 17, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>A rotor spider is part of the rotor core... |
1923 1923 |
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| Man with two pack horses along Seattle City Light railroad right-of-way, Skagit River, July 18, 1921 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961.<br><br>Caption on image: 5167. 7-18-21<br><br>Caption below image: R.R. right-of-way<br><br>PH Coll 45 Album 2.31 |
1921 1921 |
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| Interior view of the penstock for unit no. 2, with ghostly figure of welder at work, November 2, 1923 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961. <br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: #2 Penstock, showing welder at work, 11-2-23.... |
1923 1923 |
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| Gorge Dam on the Skagit River, January 12, 1926 | Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961.<br><br>The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.<br><br>Caption on image: 5265. 1-12-26<br><br>Caption below image: Crib... |
1926 1926 |
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| Flume construction showing trestle at canyon near Puyallup River, December 31, 1903 | Construction photographs of the Electron Plant, a hydroelectric facility on the Puyallup River, built by the Puget Sound Power Company, 1902-1904. This company was acquired by Puget Sound Traction, Light and Power Company in 1912.<br><br>Handwritten on image: No. 194. Dec 31,... |
1903 1903 |
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| Dam construction at headworks, November 1, 1910 | Construction photographs of the White River Power Plant, a hydroelectric facility on the White River, built by the Pacific Coast Power Company, 1909-1911. This company was acquired by Puget Sound Traction, Light & Power Company in 1912.<br><br>Caption on image: Dam at headworks,... |
1910 1910 |
