California Department of Transportation District 1
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Index of Projects

This page contains information for many projects in District 1. Contact our Public Information Office for projects not listed here.

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Project NameCountyFact
Sheet		Description
197/199 Safe STAA AccessDel NortePDFThis project proposes improvements to Routes 197 and 199 in Del Norte County to allow larger, industry standard-sized trucks access to the North Coast from the east.
Dr. Fine Bridge ReplacementDel NortePDFThis project proposes to replace the Dr. Fine Bridge over the Smith River on Route 101 north of Crescent City.
Klamath River Bridge Hinge ReplacementDel NortePDFThis project proposes to replace hinges at three spans on the Klamath River Bridge on Route 101 in Del Norte County.
Last Chance GradeDel Norte Located on Route 101 in Del Norte County, 10 miles south of Crescent City, Last Chance Grade is an area of highway prone to geological activity.
Avenue of the Giants Four BridgesHumboldtPDFThis project proposes to upgrade existing bridge railing to current standards at four locations on the Avenue of the Giants/Route 254 in Humboldt County. These locations are Ohman Creek Bridge, Elk Creek Bridge, Bridge Creek Bridge, and Bear Creek Bridge.
Blue Lake Slide Stabilization and Culvert ReplacementsHumboldt This project will make repairs to and stabilize two segments of Route 299.
Carlotta Left Turn ChannelizationHumboldtPDFThis project proposes to add a left turn pocket at Wilder Road and gateway features at each end of the community of Carlotta.
Eureka-Arcata Route 101 Corridor ImprovementHumboldtPDFThis project proposes to make improvements to Route 101 from the Eureka Slough bridges in Eurekato the 11th Street Overcrossing in Arcata.
Mad River Bridges ReplacementHumboldtPDFThis project is replacing the northbound and southbound bridges crossing the Mad River on Route 101 between Arcata and McKinleyville.
Richardson Grove Improvement ProjectHumboldtPDFCaltrans proposes to adjust the roadway alignment of Route 101 through Richardson Grove State Park. This project will allow access by industry standard-sized trucks conforming to the Surface Transportation Assistance Act (STAA), which are currently prohibited north of Leggett.
Route 169 Four BridgesHumboldtPDFThis project is replacing four bridges along Route 169 at Cappell (Ke’pel) Creek, Mawah Creek, Rube Ranch Creek, and Martins Ferry.
Route 299 Greenpoint SinkHumboldtPDFThis storm damage project, located about 14 miles east of he City of Blue Lake, will construct two retaining walls and improve drainage.
US 101 Arcata Cable Median Barrier Safety ProjectHumboldtPDFThis safety project will install a cable barrier in the median and upgrade bridge column guardrail at overcrossings between the 11th Street Overcrossing and the Arcata Overhead.
Lake 20 RoundaboutLakePDFThis project is improving the safety of the Route 20/Nice-Lucerne Cutoff Road intersection by constructing a roundabout.
Lake 29 ImprovementLakePDFThis project proposes to widen an eight-mile segment of State Route 29 in Lake County to a four-lane expressway with access control. This project is located between the communities of Lower Lake and Kelseyville.
Route 20/29 Intersection Safety ProjectLakePDFCaltrans proposes to improve the safety of the Route 20/29 intersection in Lake County.
Route 53 RehabilitationLake This project is installing or extending turn pocket lanes, widening the shoulders, upgrading intersection lighting, improving drainage, and repaving a 4.5 mile section of Route 53.
Albion River Bridge ReplacementMendocino This project proposes to replace the existing bridge.
Dunn Creek Fish PassageMendocinoPDFThis project will replace a culvert with a bridge on Route 1 at Dunn Creek.
Greenwood Creek Bridge ReplacementMendocinoPDFThis project proposes to replace the existing Greenwood Creek Bridge just south of Elk.
Mendocino 4 BridgesMendocino This project proposes to widen the shoulders and install new bridge rails at Pudding Creek Bridge, Russian Gulch Bridge, Jack Peters Creek Bridge, and Little River Bridge.
Navarro Bluffs RealignmentMendocinoPDFThis will realign a section of Route 1 away from a slow moving slide.
North Hopland UpgradeMendocino This project proposes to construct a four-lane freeway or expressway on Route 101 north of the community of Hopland in southern Mendocino County.
Route 253 SlipoutsMendocino This project proposes to repair winter storm damage that occurred during the 2005/2006 winter season.
Salmon Creek Bridge ReplacementMendocino This project proposes to replace the existing bridge.
Seaside Creek Storm Damage RepairMendocino This project proposes to repair a section of Route 1 damaged by 2005/2006 winter storms.
Willits BypassMendocinoPDFThis project proposes to construct a new segment of Route 101 that will bypass the City of Willits to relieve congestion, reduce delays, and improve safety.