1. Home
  2. Caltrans Near Me
  3. District 1
  4. District 1 Current Projects
  5. Eureka Slough Bridges Project

Eureka Slough Bridges Project

Project DescriptionEureka Slough Bridge from bike path. Concrete pillars extend from under the bridge deck into the green water of the Eureka Slough.

Caltrans is planning to replace the northbound and southbound Eureka Slough Bridges located on U.S. Highway 101 at the northern end of the City of Eureka. The project would address seismic deficiencies and improve the function and geometrics of both bridges. The preferred alternative would replace the two existing bridges with two new, mirrored structures. Each bridge would have two traffic lanes, standard inside and outside shoulders, and a separated bicycle and pedestrian path on the outside edge.

Timeline

Construction is estimated to begin in 2029.

Documents

Contact Information

Project Manager
Jeff Pimentel
(707) 834-9529

Environmental Coordinator
Felicia Zimmerman
(707) 815-5994

Public Information (Media Inquiries)
Myles Cochrane
(707) 498-4272

Last reviewed: May 2025

Eureka Slough Bridge looking west. Concrete pillars extend from under the bridge deck into the green water of the Eureka Slough.

View of southbound bridge looking south

Eureka Slough Bridge looking north from bike path. Concrete pillars extend from under the bridge deck into the green water of the Eureka Slough.

View of northbound bridge looking east

Aerial view of the Eureka Slough Bridge looking southwest. Vehicles travel on the bridge deck. Concrete pillars extend from under the bridge deck into the green water of the Eureka Slough.

Aerial view of Eureka Slough Bridges looking northwest

Aerial view of the Eureka Slough Bridge looking southeast. Vehicles travel on the bridge deck. Concrete pillars extend from under the bridge deck into the green water of the Eureka Slough. The northern edge of Eureka is visible in the background.

Aerial view of Eureka Slough Bridges looking west