Public Infrastructure

Last Chance Grade Permanent Restoration Project

Hwy 101 in Del Norte County from Post Mile 12.5-16, California

Document Stage

Post-Decision

Approval Date

Jul 15, 2026

Description

The project will permanently address the instability and potential roadway failure on U.S. 101 between post miles 12.7 and 16.5 in Del Norte County, by constructing a tunnel to bypass the landslide. From parent project: Caltrans is the lead agency under CEQA and NEPA, as assigned by FHWA for the project. As shown in Figure 1, Last Chance Grade is the 3.5-mile-long section of U.S. Highway 101 US 101 in Del Norte County post mile PM 12.0 to 15.5 that runs between Wilson Creek to about 9 miles sout...

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