Mendocino Highways

Route 1 green shield with text that reads mendocino coast
Current Projects

Search #MendocinoCoast, and follow District 1 on Facebook, Twitter and Instagram for the latest updates.

The purpose of the project is to provide a bridge across the Albion River that meets modern seismic safety standards, provides safe and reliable multimodal access, and minimizes ongoing maintenance costs. 

Visit the project webpage.

Aerial photo of Albion River Bridge looking out toward the coastline and the Pacific Ocean.

This project will replace the existing two bridges on State Route 20 (SR20) that span the Russian River and Eastside Road in Redwood Valley.

Visit the project webpage.

Simulation of proposed upgrades to Calpella Bridges on State Route 20 that span the Russian River and Eastside Road in Redwood Valley, Mendocino County (post miles 33.4 to 34.2).

Caltrans proposes to replace the existing Eel River Bridge (Caltrans Bridge #10-0236) on State Route 162.

Visit the project webpage.

Wide view of the existing Eel River Bridge on State Route 162 which spans post miles 8 to 8.4

Caltrans proposes to replace the existing Elk Creek Bridge (Bridge #10-120) located on State Route 1 (post miles 31.35) to improve the function and geometrics of the bridge.

Visit the project webpage.

Current photo of the Elk Creek Bridge located on State Route 1 in Mendocino County. The bridge is a two-lane road with narrow shoulders and wooden railings. A sign indicates mile marker 31.35.

Caltrans, in partnership with the Mendocino Council of Governments, proposes an enhancement project on State Route 1 through downtown Gualala (post miles 0.6 to 1.0). The current design of the downtown area of Gualala has several deficiencies that could increase conflicts between motorized users, cyclists, and pedestrians.

Visit the project webpage.

Gualala Downtown Streetscape Enhancement Project: View Looking South on Route 1 (Proposed)

Caltrans proposes to construct improvements on U.S. Highway 101 in downtown Hopland (post miles 10.8 and 11.2) for compliance with the Americans for Disabilities Act. Work would include improving curb ramps, sidewalks, and driveways, reconstructing the roadway, rehabilitating pavement, upgrading drainage systems, signage, and Transportation Management Systems  facilities.

View the project webpage.

Hopland Americans with Disabilities Act Project logo. A U.S. Highway 101 crest includes the text U.S. 101. Text reads Hopland ADA Project.

The purpose of the project is to bring Jack Peters Creek Bridge up to current design standards by widening the existing structure and upgrading bridge rails.

Visit the project webpage.

Bridge spanning Jack Peter Creek in Mendocino County

This shoulder widening project proposes to widen existing shoulders in both directions to 4 ft., install edge-line rumble strip, perpetuate the existing centerline rumble strip, and install metal beam guardrail. Work will include replacement of four culverts, nine drainage inlets and the extension of three culverts. 

Visit the project webpage.

The purpose of the project is to improve safety for motorists, bicyclists, and pedestrians. The project includes widening the bridge to accommodate two 12-foot-wide lanes, two 8-foot-wide shoulders, two 6-foot walkways and new bridge railings to meet current standards.

Caltrans celebrated completion of the project with a ribbon cutting ceremony in November 2023.

Visit the project webpage.

Newly completed Pudding Creek Bridge in Fort Bragg, Mendocino County Ribbon Cutting Ceremony at the Pudding Creek Bridge, Mendocino County The bridge project design features steel salmon artwork welded onto both bridge railings

Caltrans proposes to replace the Salmon Creek Bridge on Route 1. The current bridge, built in 1950, has a concrete deck over steel beams. The bridge is functionally obsolete because it is narrow and does not meet current standards for shoulders and guardrails.

Visit the project webpage.

View of the existing Salmon Creek Bridge on Route 1 in Mendocino County.

The purpose of the project is to remediate lead-impacted shallow soil in the State Right-of-Way and on the privately-owned parcels adjacent to the Salmon Creek Bridge. The project is needed because historic bridge painting practices resulted in elevated lead concentrations in shallow soils beneath and east of the Salmon Creek Bridge. 

Visit the project webpage.

View of existing bridge looking east.

Route 1 sign. Route 20 sign.  US 101 sign. Route 128 sign. Route 162 sign. Route 175 sign. Route 222 sign. Route 253 sign. Route 271 sign.

Mendocino County Project Locations

A map of coastal projects along Route 1 in Mendocino County.

Coastal Mendocino project map. 

A map showing Mendocino County with pinpoints identifying inland project locations on US 101 and Route 162.

Inland Mendocino project map.