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The route length is incorrect. I calculated it without the western part of the highway from Seattle to Spokane. If someone could correct it would make this article much more accurate. Paul Webb (PaulWebbtheTechExpert) ( talk) 14:48, 9 October 2020 (UTC) reply

Recalculated length

I have recalculated the length using the State Farm map. It may be a bit inaccurate as the curviness of the route makes accurately getting the length difficult. Paul Webb (PaulWebbtheTechExpert) ( talk) 15:09, 20 October 2020 (UTC) reply