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The Salmon Creek Dam is a concrete arch da … The Salmon Creek Dam is a concrete arch dam on the Salmon Creek, 3 miles (5 km) northwest of Juneau, Alaska. Built in 1914, it is the world's first constant-angle arch variable radius dam. Since it was built, over 100 such dams have been constructed all over the world. The dam was designated as a National Historic Civil Engineering Landmark by the American Society of Civil Engineers in 2022. The dam was built by the Alaska-Gastineau Mining Company to meet the electrical energy needs for mining operations. The dam continues to be fully functional for hydroelectric generation, as one of the drinking water sources to Juneau city and for aquaculture and fishing. When built, adoption of the constant arch design for the dam reduced costs by 20% because less concrete was needed to construct the dam. Of the two hydroelectric power stations built at the initial stage (one at the upper level and the other at the lower level) – the latter one is still in use after a new powerhouse was built adjoining the old one – it produces 10% of the energy needs of Juneau city. When built, the dam and its two power plants were considered engineering wonders. Both are operated and maintained by the Alaska Electric Light & Power (AEL&P).ka Electric Light & Power (AEL&P).
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July 24, 1913
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1913
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Constant-angle concretearch dam
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53.34
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1914
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Constant-angle concrete arch dam
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at top and at base
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Multi-purpose use
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Left: Salmon Creek Dam in 2006 after rehabilitation; top of the dam walkway. Right: Salmon Creek Dam, full arch downstream view.
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Salmon Creek Dam - Full Arch Ds view.jpg
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Aerial view of Salmon Creek Dam in Juneau, Alaska
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Juneau, Alaska, USA
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Alaska
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Salmon Creek Dam, Alaska
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Salmon Creek Dam
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1914
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| rdfs:comment |
The Salmon Creek Dam is a concrete arch da … The Salmon Creek Dam is a concrete arch dam on the Salmon Creek, 3 miles (5 km) northwest of Juneau, Alaska. Built in 1914, it is the world's first constant-angle arch variable radius dam. Since it was built, over 100 such dams have been constructed all over the world. The dam was designated as a National Historic Civil Engineering Landmark by the American Society of Civil Engineers in 2022.erican Society of Civil Engineers in 2022.
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Salmon Creek Dam
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