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Oregon Highway Department completes Astoria-Megler Bridge over the Columbia River on August 27, 1966. Essay 7263 : Printer-Friendly Format

On August 27, 1966, the Oregon Highway Department completes the Astoria-Megler Bridge over the Columbia River. It is the longest continuous three-span through-truss bridge in the world. It crosses the Columbia River linking Oregon to Washington, and completes US 101 between Washington and southern California.

Joining States

The Astoria-Megler Bridge was a joint project of the highway departments of Washington and Oregon. It stretches from Point Ellice, Washington, across the mouth of the Columbia River to Astoria, Oregon, a distance of 4.1 miles.

The bridge's main span is 1,232 feet. It is a steel-truss bridge with approaches made of pre-stressed concrete beam spans set on concrete piers. It is a through-truss bridge, meaning that the structure is cross-braced both below the roadway and above the traffic.

The bridge replaced a ferry that began operating in 1921 between Astoria on the Oregon side and Megler on the Washington side. In 1946, the Oregon State Highway Department took over operation of the ferry.

Oregon Departmen of Transportation website ( BSS/rmds/photos/b_astoria.htm); Astoria & Warrenton Area Chamber of Commerce website (
Note: This essay was corrected on September 7, 2005.

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Special Suite: Bridges |

Related Topics: Roads & Rails | Washington Rivers |

Licensing: This essay is licensed under a Creative Commons license that encourages reproduction with attribution. Credit should be given to both and to the author, and sources must be included with any reproduction. Click the icon for more info. Please note that this Creative Commons license applies to text only, and not to images. For more information regarding individual photos or images, please contact the source noted in the image credit.
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Major Support for Provided By: The State of Washington | Patsy Bullitt Collins | Paul G. Allen Family Foundation | Museum Of History & Industry | 4Culture (King County Lodging Tax Revenue) | City of Seattle | City of Bellevue | City of Tacoma | King County | The Peach Foundation | Microsoft Corporation, Other Public and Private Sponsors and Visitors Like You

This essay made possible by:
Washington State Department of Transportation (WSDOT)

Astoria-Megler Bridge, Oregon side, August 16, 2002 Photo by Kit Oldham

Astoria-Megler Bridge, 1960s

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