Washington State Route 410
Highway in Washington
State Route 410 (SR 410, partially named the Chinook Scenic Byway, and also named the Stephen Mather Memorial Parkway) is a 107.44-mile (172.91 km) long state highway that traverses Pierce, King, and Yakima counties in the US state of Washington. It begins at an interchange with SR 167 in Sumner and travels southeast across the Cascade Range to a junction with U.S. Route 12 (US 12) in Naches. While the western part of SR 410 is a freeway that serves built-up, urban areas, the remainder of the route is a surface road that traverses mostly rural areas as it passes through the mountains.
The route starts as a limited-access southerly bypass of Downtown Sumner, but becomes a surface road east of the city. Traveling eastward, the roadway serves Bonney Lake and Buckley, and crosses and eventually parallels the White River into Enumclaw and Greenwater. SR 410 enters the Mount Baker-Snoqualmie National Forest and later heads into Mount Rainier National Park, crossing the Cayuse and Chinook passes, and leaves the park southeast along the American River into Wenatchee National Forest. SR 410 leaves the national forest and travels parallel to the Naches River to end in Naches, a city located west of Yakima. The Chinook Scenic Byway begins in Enumclaw and follows the highway through the two national forests and Mount Rainier National Park to US 12 in Naches.
Modern SR 410 was parts of various state wagon roads until 1926 when US 410 was established, extending from Aberdeen to Lewiston, Idaho. US 410 was decommissioned after US 12 was extended over the majority of the highway in 1967, bypassing Olympia and Chinook Pass.
This brief starts where responsible research should: with the source description of “Washington State Route 410” as highway in Washington. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as highway in Washington. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Nov 14, 2025. The linked authority identifier is Q836376. VIAF identifies the subject as 315531423. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1926 and 1967.
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This entry incorporates text from “Washington State Route 410” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.