List of Primary State Highways in Washington

Primary State Highways were major state highways in the U.S. state of Washington used in the early 20th century. They were created as the first organized road numbering system in the state in stages between 1905 and 1937 and used until the 1964 state highway renumbering.

Source: Wikipedia — List of Primary State Highways in Washington (CC BY-SA 4.0)

List of Primary State Highways in Washington

Primary State Highways were major state highways in the U.S. state of Washington used in the early 20th century. They were created as the first organized road numbering system in the state in stages between 1905 and 1937 and used until the 1964 state highway renumbering.

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Source: Wikipedia "List of Primary State Highways in Washington" · CC BY-SA 4.0

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