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SR 410 down to one lane, closed next three weeks

Published 10:30 am Thursday, September 21, 2023

By Ray Miller-Still

A debris flow this past November along Dry Creek overwhelmed a 24-inch culvert under SR 410 near Crystal Mountain Resort, causing water and about two feet of debris to cover the highway. It also caused scouring along the shoulder and embankment. Image courtesy Washington State Department of Transportation
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A debris flow this past November along Dry Creek overwhelmed a 24-inch culvert under SR 410 near Crystal Mountain Resort, causing water and about two feet of debris to cover the highway. It also caused scouring along the shoulder and embankment. Image courtesy Washington State Department of Transportation
A debris flow this past November along Dry Creek overwhelmed a 24-inch culvert under SR 410 near Crystal Mountain Resort, causing water and about two feet of debris to cover the highway. It also caused scouring along the shoulder and embankment. Image courtesy Washington State Department of Transportation
A map of where work on SR 410 will be limiting or closed to traffic these next three weeks. Image courtesy Washington State Department of Transportation

State route 410 will be closed during the first week of October, preventing locals and tourists from enjoying the early fall on the pass.

According to the Washington State Department of Transportation, the highway will be closed to traffic at milepost 55, around the Dry Creek and Crystal Mountain Ski Resort, so construction crews can install a 10-foot corrugated metal pipe culvert from Oct. 2 – 5.

Additionally, the highway will be open, but reduced to one lane, from Sept, 25 – 29 and Oct. 9 – 13.

This project is the second part of some emergency repairs that begun after a 2022 debris flow, which permanently changed the course of the Dry Creek and “overwhelmed” a shorter culvert.

Since then, WSDOT has increased Dry Creek stream capacity since February 2023 by adding three overflow culverts just north of Crystal Mountain at milepost 55. This was a temporary fix to reduce flood risks, and the new culvert is the permanent fix.

All in all, the project cost about $1.9 million.

Those needing to get around the closure can look to I-90 or US 12 around the Cascade Mountain Range.

Additionally, the Sunrise area at Mount Rainier will only be accessible from SR 123/Cayuse Pass from the south and westbound SR 410 from Yakima.

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