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Displaying results 1 of 6 - 6
Date Innovation City State Country Society
1938 Bonneville Dam, Columbia River System Portland OR USA ASCE
1922 Columbia River Scenic Highway Cascade Locks OR USA ASCE
1948 Commonwealth Building Heat Pump Portland OR USA ASME
1947 Howard Hughes Flying Boat, HK-1 McMinnville OR USA ASME
1931 Rogue River Bridge Gold Beach OR USA ASCE
1956 The Dalles Lock and Dam The Dalles OR ASCE
Displaying results 1 of 6 - 6

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