The Pacific Coast Highway, 1915, an area near Seattle was a plank road. Made by car clubs, not the local, county, state or federal government

It was the creation, not of government, but of a loose affiliation of auto clubs in Oregon, Washington and British Columbia. The group chose an official north-south route and placed signs along the way identifying it as the Pacific Highway. Outside of major cities, the road was rough and unpaved but navigable. Following is a photo taken in 1915 of the route's grand opening along a stretch of highway that was plank paved near Seattle.

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