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The Bridges of Portland, Oregon - http://www.bizave.com/portland/bridges/
Photos and descriptions of Portland, Oregon's wide variety of river bridges. |
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A Guide to Oregon Covered Bridges - http://www.oregon.gov/ODOT/HWY/BRIDGE/
Oregon Department of Transportation offers photographs and brief histories of a selection of the over 50 surviving spans in the state. |
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Oregon's Covered Bridges - http://home.comcast.net/~draft10/bridges/bridges.html
History and county by county guide, with photographs and descriptions. Also an explanation of truss types, with diagrams. |