Humboldt Bay Trail


The Humboldt Bay Trail is a network of paved paths connecting the communities around Humboldt Bay. Efforts are actively underway to complete a continuous 14-mile, non-motorized trail from central Arcata to the southern end of Eureka. This trail will increase road safety, provide a low-cost travel alternative, expand recreational opportunities, improve community livability, and promote active, healthy transportation. The trail is being constructed in phases by the cities of Eureka and Arcata and Humboldt County, with support from Caltrans, the North Coast Railroad Authority, California Coastal Conservancy, and many other entities. Construction funding is secured for the final four miles of the trail, a section called the “Humboldt Bay Trail South” Project, which extends from the Target store near Eureka Slough to the Bracut Industrial Park near Bayside Cutoff (construction of this segment is planned to begin in 2021).

Keep updated on regional trail progress and subscribe to the Humboldt Trails Council e-newsletter.

Map of Projects in Development (Click on the image below for a larger view)

Humboldt Bay Trail Projects Overview Map November 2017

Partnerships For Trails

Three local agencies are currently leading the development of segments of the Humboldt Bay Trail:
  1. County of Humboldt
  2. City of Arcata
  3. City of Eureka

Humboldt County was allocated funds in 2015 through the State Transportation Improvement Program to complete preliminary engineering, environmental studies, and permitting and to develop engineering plans and specifications for the Humboldt Bay Trail South project.  Funding for right-of-way acquisition is being provided through the Humboldt County Association of Governments.  In January 2019, funding for construction was awarded through the state's Active Transportation Program. The County is working to acquire right-of-way and permits, develop a plan for wetland mitigation, and complete the final design. The target date for beginning construction is 2021.

Project Documents

(Crawford & Associates, June 2019)

(Dryad, Oct. 8, 2018)

Tree Risk Assessment - Attachments (Dryad, Oct. 8, 2018)

Tree Risk Assessment - Scope of Work (Dryad, Aug. 24, 2018)

Comment Evaluation Memo (July 16, 2018)

(June 2018)

Public Meeting Presentation (February 2018)

CEQA Notice of Intent (February 2018)

CEQA environmental document – Initial Study and Proposed Mitigated Negative Declaration (February 2018)

CEQA environmental document – Initial Study and Proposed Mitigated Negative Declaration [TEXT ONLY] (February 2018)

 Historical Resources / Cultural Resources CEQA Memo (January 2018)

Basis of Design Report for Trail Width – Humboldt Bay Trail: Eureka-to-Arcata Segment (March 2016)

Humboldt Bay Trail South  (August 2014)  

Humboldt Bay Trail Network Project Update Brochure  (June 2014)

Humboldt Bay Trail South  Project Study Report (March 2014)

Highway 101 Corridor Improvement Project – Historic Resources Evaluation Report  (July 2004)

Humboldt Bay Trail Updates

Virtual Humboldt Trails Summit

Saturday, June 6th, 9 a.m. to 11 a.m. via Zoom

Please join trail supporters for the first Virtual Humboldt Trails Summit on Saturday, June 6th, 9:00 a.m. to 11:00 a.m. via Zoom and Access Humboldt channel 12. During these challenging times, access to safe trails is more important than ever. Don’t miss this opportunity to learn about the progress that is being made on local trail projects and get an update from State Senator Mike McGuire on the status of the Great Redwood Trail. On-location videos, including the ground breaking of the Annie and Mary Trail, will connect you with ongoing work in expanding Humboldt’s regional network of trails. The public is encouraged to send their questions about trails in advance to:

To join the Virtual Humboldt Trails Summit, you must register at:

State Allocates Funding for Completion of Humboldt Bay Trail

The project to complete the 4-mile gap in the Humboldt Bay Trail between Eureka and Arcata was approved for funding through the state’s 2019 Active Transportation Program.

The Active Transportation Program is a competitive grant program that funds bicycle and pedestrian improvements throughout California. Humboldt County’s “Humboldt Bay Trail South” project was tied for the fifth-highest score in the category of projects that competed on a statewide basis. The approved funding amount is $13.3 million.

Donate to the Humboldt Bay Trail Fund

The Humboldt Bay Trail Fund was established at the Humboldt Area Foundation to provide a mechanism for private donors to assist in the continued development of the Humboldt Bay Trail by focusing on the critical need for trail maintenance funds. The fund will give priority to on-going emergency trail maintenance with emphasis on supporting volunteer efforts. Make an online donation!

KCET – Connecting Communities on the Humboldt Bay Trail

The latest episode of KCET’s California Coastal Trail series highlights the Humboldt Bay Trail and the broad community support for completing the trail. Check out this inspiring segment.


Funding to Complete the Final Four-mile Gap

In July 2018, Humboldt County applied to the state’s Active Transportation Fund for $13.3 million of funding to complete the four-mile gap in the Humboldt Bay Trail between Arcata and Eureka. The total construction cost (including $2.5 million for wetland mitigation) is $18.6 million. The proposed cost-share for the project is $2 million from Coastal Conservancy and $3.3 million from Caltrans District 1. A funding decision should be made late October or November 2018

Watch the video produced by RCAA highlighting plans and benefits of completing the trail.


California Environmental Quality Act Document Adopted

On Tuesday, July 31, 2018, Humboldt County Board of Supervisors adopted the proposed initial study and mitigated negative declaration prepared for the Humboldt Bay Trail South project in accordance with the California Environmental Quality Act (CEQA). Humboldt County Public Works prepared the Initial Study and Proposed Mitigated Negative Declaration to analyze potentially significant environmental impacts and identify appropriate mitigation measures. The project approved by the Board includes removal of the northern group of eucalyptus trees. To provide additional information regarding the safety hazards of the eucalyptus trees, the Board asked Public Works to hire two certified arborists to perform independent risk assessments. The Board is expected to receive a report regarding the results of the risk assessments in late October or early November 2018.

Thank You Humboldt Bay Trail Founding Donors! (Click on the image below for a larger view)

Image Thank You 2017 Humboldt Bay Trail Supporters