Contra Costa County Quarterly Caltrans Update

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Contra Costa County E-Newsletter

Welcome to the second quarterly Contra Costa County newsletter!

The newsletter was created to assist you with keeping up to date on current and future Caltrans’ projects happening in your county and the surrounding neighborhoods.

This year several projects are happening throughout Contra Costa County, and we want you to not only be aware but to be prepared.

Our goal is to assist you with navigating your way around any reduced lanes, closed on- and off-ramps, and extended freeway closures.

Caltrans offers one of the most comprehensive travel apps to get you around the Bay Area. You can access our Caltrans’ via the web or you can download in the app store on your phone.

As our population grows, it is important that Caltrans keep you moving.

We have provided quick links, need to browse our website, or email us, just click on the links.

Richmond-San Rafael Bridge Work

The Richmond-San Rafael Bridge is the key cog for the traveling public on Interstate 580 (I-580) between Contra Costa and Marin counties.

In April 2024, Caltrans finished a three-year long painting project on the bridge. The $66 million project focused on structural elements of the bridge. Painting was necessary as part of continuous maintenance to prevent rust and more expensive repair work. Painting and maintaining the bridge provides for safe passage for the traveling public.

Aerial view of the Richmond - San Rafael Bridge.This spring, Caltrans started upgrading four electrical substations on the bridge. The substations are located on the San Rafael side near San Quentin, at piers 34 and 48 and at the toll plaza.

The work includes updating the electrical equipment in the substations and the electrical infrastructure along the five-mile stretch of the bridge.

The upgrades will provide more electrical capacity through new cables. New and upgraded equipment will provide more safety to motorists and provide better capacity to the existing camera system on the bridge.

The project is scheduled to be completed by the end of 2025. Lane reductions and bike lane closures are expected to continue due to the project.

For more information, see Richmond - San Rafael Bridge Electrical Substation Upgrades.

Contra Costa Interstate-80, SR-4 pave work in final stages

Over the past few months, our dedicated crews have been working diligently on the final stages of the Contra Costa County Interstate 80 (I-80) Rehabilitation Project, also known as the CC I-80 Pave project.

Caltrans doing paving work on Interstate 80 and State Route 4 for the Contra Costa County Interstate 80 Rehabilitation project.Crews have performed critical tasks such as drainage improvements, electrical system upgrades, and permanent striping to enhance the infrastructure for safer and smoother travel for motorists on I-80 and State Route 4 (SR-4) in Hercules.

As part of this comprehensive effort, crews will be implementing erosion control measures throughout the project limits and installing electrical systems on the ramps along the I-80 corridor. Motorists should remain alert for possible ramp and lane closures on I-80 between SR-4.

In the summer of 2023, in collaboration with Bay Cities Paving, Caltrans Bay Area embarked on the monumental task of rehabilitating 26 lane-miles of deteriorated pavement along the I-80 corridor, stretching from San Francisco to Sacramento. Leveraging innovative strategies, such as condensing nine months of nightly work into just four weekend highway closures, we've accelerated the project timeline while minimizing disruptions for the traveling public.

The project is expected to be completed by Fall 2024.



Map location of the Capital Maintenance project on State route 4.

Capital Maintenance project continues for SR-4

Caltrans is continuing a Capital Maintenance project on Eastbound and Westbound State Route 4 (SR-4) in the cities of Concord and Pittsburg.

The project limits are 0.3 miles East of the Peralta Road undercrossing in Concord to the Loveridge Road overcrossing in Pittsburg. The project started in May of 2023 and is scheduled to be completed in May of 2025.

The work includes grinding and paving pavement and installing Americans with Disabilities Act (ADA) curb ramp and guardrail.

Slab replacement work is complete, and Westbound SR-4 pavement rehabilitation work is finished. Shoulder/ramp work and grinding and paving on Eastbound SR-4 is ongoing.

Eastbound SR-4 lane closures will continue until the end of August 2024 from 10 p.m. until 11 a.m. the next mornings. Westbound lane closures also will continue until the end of August from 6 p.m. until 5 a.m. the next mornings.

Ribbon cutting for ‘Reviving the Heart of Pittsburg Pride’

The City of Pittsburg and Caltrans held a ribbon cutting event on June 13 for the Clean California “Reviving the Heart of Pittsburg Pride” project in Old Town Pittsburg.

Group of people posing for a picture under the Old Town Pittsburg sign for ribbon cutting event, 'Revving the Heart of Pittsburg Pride' .

Caltrans Bay Area Deputy of Maintenance Leah Budu, Pittsburg Mayor Juan Banales, Pittsburg City Manager Garrett Evans, and Pittsburg Project Manager Zuna Barker Portillo spoke at the ribbon cutting ceremony followed with a performance from the Pittsburg High marching band.

This project includes a new gateway arch over Railroad Avenue at 8th Street, a new park with a six-foot tall letters spelling “Pittsburg,” across from City Park, and hardscape simulating a creek bed along between Central Avenue and 10th street.

It was funded by a nearly $2.9 million grant from the Caltrans Clean California Local Grant Program, and a $413,000 contribution from the City’s American Rescue Plan Act (ARPA) funding.

The Contra Costa County newsletter will be distributed on a quarterly schedule.

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Contra Costa County Public Information Officers

Pedro Quintana

Matt O'Donnel

General Information
(510) 286-4444

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