I-5 Stockton Channel Viaduct Bridge Improvements
D10 Stockton Channel Viaduct
Caltrans will replace the northbound and southbound Stockton Channel Viaduct Bridges in the City of Stockton on Interstate 5
D10 Stockton Channel Viaduct
The purpose of the project is to ensure the long-term serviceability and structural integrity and improve the permit load rating of the Stockton Channel Viaduct Bridges
D10 Stockton Channel Viaduct
Partnerships: San Joaquin Council of Governments, Kiewit Corporation
D10 Stockton Channel Viaduct
Funding Source: State Highway Operation and Protection Program (SHOPP) - Bridge Preservation
Caltrans To Provide Update on Plans for Stockton Channel Viaduct 3/8/24
Project Description
The California Department of Transportation (Caltrans) will replace the northbound and southbound Stockton Channel Viaduct Bridges (Bridge Numbers 29-0176L and 29-0176R) in the City of Stockton on Interstate 5 from post miles 26.1 to 27.6.
Project Benefits
Purpose
The purpose of the project is to ensure the long-term serviceability and structural integrity and improve the permit load rating of the Stockton Channel Viaduct Bridges (Bridge Numbers 29-0176L and 29-0176R) on Interstate 5 in San Joaquin County.
Need
The project is needed because of structural deficiencies and continued bridge repairs. The bridges show concrete and steel superstructure/foundation deficiencies. The deficiencies include a long-standing issue of concrete deck deterioration resulting in ongoing maintenance challenges, freckled rust forming at various locations throughout the superstructure steel elements, damaged steel bracing, and cracking in the concrete retaining walls, bents, and columns. Substructure deficiencies, such as soil liquefaction potentially caused by seismic activity, are also prevalent. Additionally, the current structures are not rated to accommodate permit loading, which is required for goods movement.
Partnerships
San Joaquin Council of Governments, City of Stockton, Federal Highway Administration, U.S. Coast Guard, Environmental Resource Agencies
Funding Source
State Highway Operation and Protection Program (SHOPP) - Bridge Preservation
Documents
Final Initial Study with Proposed Mitigated Negative Declaration/ Environmental Assessment and Section 4(f) Evaluation - April 2021 (PDF) 22,021 KB
The Draft Project Report is available by request. To request a copy, please contact the Project Manager dina.el.nakhal@dot.ca.gov
Project Contact
Caltrans District 10 - Public Information Office
Phone: (209) 948-7977
Email: district10publicaffairs@dot.ca.gov
Recent Event
May 14th, 2025 – 9:00 AM
Stockton Channel Viaduct Project Update
Stockton Chamber of Commerce Green Team
1776 West March Ln, Suite 170, Stockton, CA 95207
Project Timeline
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March 2018
Programming
The project was programmed in the State Highway Operation and Protection Program (SHOPP) with funding for the Environmental and Design phases.
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April 2021
Environmental Document (IS/EA) Approval
The subsequent IS/MND and EA/FONSI were initially proposed because the exact location of the preferred alternative was still pending. Once the project development team finalized the location, additional technical evaluations were completed, and our existing determinations were revalidated. Therefore, Caltrans will issue an addendum in Spring 2025 rather than a subsequent environmental document.
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June 2021
Project Approval - Bridge Replacement
After studying the following alternatives: 1) Deck Rehabilitation, 2) Superstructure Replacement and 3) Complete bridge replacement, alternative 3, bridge replacement was selected and approved June 2021
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October 2021
Design Begins
Design funds were allocated and the design phase commenced.
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July 2022
Delivery Method Selected
After evaluating the project challenges such as traffic handling, construction methods, limited in-channel work window, the project delivery team determined that the project is a good candidate for Construction Manager General Contractor (CMGC) delivery.
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February 2023
CMGC Selected (KIEWIT)
The project was advertised for pre-construction services with a rigerous list of qualifications and expertise, proposals were evaluated and a CMGC was selected.
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July 2023
Bridge-Type Was Selected
As a preliminary step to moving the design forward, the Caltrans team and CMGC evaluated the different bridge types considered and segmental cast-in-place concrete bridge type was selected.
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Summer 2025
Environmental Document
Based on some of the design options, an environmental document addendum will be completed by August 2025 and can be available by request.
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Fall 2027
Construction
It is anticipated the project construction schedule will commence with some work along Buena Vista for widening and then phase 1 and 2 of the project would demolish and reconstruct the southbound bridge and phase 3 will be to demolish and reconstruct the northbound bridge.
• Southbound bridge demolition and construction: Fall 2027 – Fall 2032
• Northbound bridge demolition and construction: Fall 2032 – Fall 2035
Past Events
May 14th, 2025 – 9:00 AM
Stockton Channel Viaduct Project Update Stockton Chamber of Commerce Green Team
1776 West March Ln, Suite 170, Stockton, CA 95207
San Joaquin Green Team Meeting - CalTrans (YouTube)
June 12th, 2024 – 9:00am to 10:00am
Green Team – Stockton Chamber of Commerce
445 W Weber Ave #220, Stockton, CA 95203
San Joaquin Green Team Meeting - CalTrans (YouTube)
May 7th, 2024 – Stockton Channel Viaduct Project Meeting Update 5:30pm to 7:00pm
The Haggin Museum
1201 N. Pershing Ave, Stockton, CA 95203
March 26, 2024 – Stockton Channel Viaduct Project Update
Stockton Chamber of Commerce 8:30-10:00
Review of Stockton Chamber of Commerce Presentation can be viewed at;
Stockton
Channel Viaduct Meeting (YouTube)
March 6, 2024 Green Team Stockton Chamber of Commerce
Caltrans was at the 20 th Annual RExpo 54 8AM-2PM
Chamber of Commerce:
REXPO 54 – 20th Anniversary
Documents
Stockton Channel Viaduct Community Engagement
Community Engagement Portal
The Caltrans Engagement Portal, formerly known as CPES, will use the PublicInput platform as an online application for Caltrans to support public engagement for Caltrans projects and plans. The system will allow Caltrans to collect, store, categorize, track, measure, retrieve, and respond to public comments.
Engagement PortalCaltrans family invites kids to show off their talent in our kids community coloring activity. (Right click and select "Save image as...")
News and Articles
Caltrans to provide update on I-5 bridgework as part of Stockton Channel Viaduct project
Project Cost/Programmed
|
Programed Project Cost
|
Capital $ | Support $ |
|---|---|---|
| Project Approval & Environmental Document | $0 | $5,500,000 |
| Plans, Specifications, & Estimates | $0 | $22,000,000 |
| Right of Way | $24,300,000 | $1,100,000 |
| Construction | $531,600,000 | $16,000,000 |
Current Schedule
| Process | Date |
|---|---|
| Project Study Report (M010) | Spring 2015 |
| Project Approval & Environmental Document (M200) | Spring 2021 |
| Right of Way Certification (M410) | Spring 2025 |
| Ready to List (M460) | Spring 2025 |
| Approved Construction Contract (M500) | Spring 2026 |
| Project Completion (M600) | Fall 2031 |
Title VI Information
The California Department of Transportation (Caltrans) assures that no person shall, on the basis of race, color, or national origin, be excluded from participation in, be denied the benefits of, or be otherwise subjected to discrimination under any program or activity receiving Federal financial assistance, as required by Title VI of the Civil Rights Act of 1964 , as amended, the Civil Rights Restoration Act of 1987 , and Federal Executive Order 12898 (Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations).
Caltrans will make every effort to ensure nondiscrimination in all of its programs and activities, whether they are federally funded or not, and that services and benefits are fairly distributed to all people, regardless of race, color, or national origin. In addition, Caltrans will facilitate meaningful participation in the transportation planning process in a nondiscriminatory manner.
- Title VI Brochure (English, PDF)
- Title VI Brochure (Spanish, PDF)
- Title VI of the Civil Rights Act of 1964 (Caltrans Information)
ATTENTION DBEs, DVBEs and SBs:
Would you like to be part of one of the largest projects in San Joaquin County?
Caltrans is looking for sub-contractors to participate in the Stockton Channel Viaduct Project.
This is a monumental project and will require as much assistance from our valuable subs as possible.
Cell: (209) 986-3499 or Traci.Adams@dot.ca.gov
