Eureka Slough Bridges Project
Project Description
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. Work would include bridge construction and removal, temporary access and trestle structures, in-water pile driving, drainage, landscaping, guard rail upgrades, cable barrier connections, paving, bicycle and pedestrian improvements, traffic handling, and utility relocation.
Timeline
Construction is estimated to begin in 2029.
Documents
- Notice of Preparation (External Site)
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: March 2025
View of southbound bridge looking east
View of northbound bridge looking north
Aerial view of Eureka Slough Bridges looking southwest
Aerial view of Eureka Slough Bridges looking southeast
Project Outreach
Caltrans is conducting a survey to understand how utilizing the U.S. 101 Eureka Slough bridges works for you, how you use the bridges, and what you think can be done to improve your travel experience.