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Washington U.S. Highway 99

Washington U.S. Highway 99 sign.

1969 specification highway marker.

Onramp to Washington 99 (Alaskan Way viaduct) southbound from westbound Columbia Street at its intersection with First Avenue in downtown Seattle. First Second by Jeff Royston, 7/28/07.

Photo by AARoads, 8/29/2006.

Washington U.S. Highway 99 sign.

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