華盛頓州州道(英語:State Highways of Washington)是華盛頓州境內由華盛頓州交通部英語Washington Department of Transportation建設和維護的州級公路。華盛頓州州道網絡總長逾7,000英里(11,270公里)(含經過州內的州際公路美國國道),涵蓋州內百分之8.5的公路,並承載州內逾半的交通流量[1][2]。州內其他公路則位於建制地方內,或由縣政府養護英語county highway[3]

參考資料

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