Welcome to the Solano County Caltrans Newsletter!

Westbound Truck Scale Groundbreaking

On Friday, August 15, 2025, Caltrans and its regional partners, Solano Transportation Authority (STA), California Transportation Commission (CTC) and the California Highway Patrol (CHP) hosted a groundbreaking event to celebrate the start the Cordelia Truck Scales Improvement Project. The project is scheduled to conclude in 2028.

This project is a much anticipated and need-ed upgrade to the WB I-80 Cordelia Commercial Vehicle Enforcement Facility (CCVEF). The new facility will be relocated 0.7 mile east from its current location and will provide a new braided o-ramp connection and new entrance ramp connection to/from Westbound I-80. Direct access to the facility will also be pro-vided from westbound State Route 12.

The original scales were constructed in 1958 to inspect trucks entering the San Francisco Bay Area from locations nationwide. However, the existing facility is outdated, under capacity, and without the contemporary technology required for effective truck inspections today. The new facility will have the capacity to in-spect all trucks passing through WB I-80 facility 24 hours per day, seven days a week.)

The Existing access from the WB I-80 consists of short on- and off-ramps, resulting in truck traffic backing up onto I-80 and increasing the potential for rear-end incidents. During peak travel periods experienced several times per week, the facility is closed to incoming trucks to prevent this queuing. The future Class B CVEF will serve as an independent command facility for the CHP. Noteworthy aspects of the facility will consist of the following:

• Seven covered inspection areas with con-figurations to accommodate long vehicle combinations. .
• Inspection areas with the capability to in-spect the underside of low-clearance vehi-cles.
• Elevated structures to enable inspectors to check the domes and top portions of cargo trucks.
• “Weigh In Motion” scales with the capability to sort truck traffic into the appropriate lane along the approach roadway.
• A minimum of four sets of scales to accommodate two lines of empty and loaded trucks.

(Concept art for the WB I-80 Truck scale)

(Lay out for the new scales)

The upgrade of the truck scales may seem as something that does not effect the general public, but what is not known by every-one is that truck scales, or truck weigh stations do in fact help the general public. A truck scale ensures commercial vehicles comply with legal and safety weight limits to protect roads, bridges, and public safety.

How is this done? A road that experiences a lot of heavy truck traffic will start to deteriorate causing the drive for others to become unsafe or cause wear on their cars. Truck that have been checked to ensure it’s weight is not to heavy also ensures there will be less damage to the roads and a smooth-er ride for everyone. It also, more important-ly, ensures safety for everyone on the road. A truck with a heavy weight may experi-ence tire blowouts, longer break times, and increased chance of rollover. The truck scale can also inspect tire tread to prevent blowouts, brake systems to ensure brake safety, and cargo securement. All this and that the truck is within weight range ensures a safe road for all drivers. All these things will be done faster, safely and more efficiently in the new truck scales on WB I-80.

State Route-29 Pavement Rehab and Complete Street Groundbreaking

State Route 29, also known as Sonoma Boulevard, is in many ways, “the heart of Vallejo.” The route serves as a vital connection between communities on the north and south route for residents, tourists, delivery trucks, emergency responders, transit providers, pedestrians and bicyclists. On September 12, 2025, Caltrans Bay Area (District 4) hosted a ground-breaking ceremony to celebrate the start of the SR-29/Sonoma Boulevard Pavement Rehabilitation and Complete Streets Elements Project in Vallejo. Sonoma Boulevard will be paved in both directions, from Cal Poly Mari-time Academy to North of Mini Drive at the Solano County/Napa County line. The project includes Complete Streets elements along with work to rehabilitate pavement and upgrade facilities to Americans with Disabilities Act (ADA) standards. Some of the Complete Street features include: the construction of a 5 miles Class 2 and 4 bike way with vibrant green bike way markings, curb extensions, and a Lane Diet from Magazine Street to Curtola Parkway. The lane diet will create new parking spots for residence on the Sonoma Boulevard who are currently forced to park on sidewalks. Additional safety features include: Light Emitting Diode (LED) light fixtures for vibrant, safer, well light downtown and curb bulb outs at certain locations for safer crossing, and new traffic signals for a smoother traffic flow. Downtown will be enriched with the addition of new trees, benches and bike racks in the downtown area. This project has been long anticipated—not only by Caltrans, but by the many dedicated women in the community who have worked tirelessly to bring positive change to their neighborhoods. Their voices, leadership, and advocacy have been key in pushing this project forward.

These women have shown what’s possible when passion meets purpose—helping to shape a safer, more connected community for everyone.

As this project moves ahead, we celebrate their efforts and continue to be inspired by the im-pact they’re making every day.

Below are photos of the before and by Fall of 2026 the community will get to see the after.

Projects Do Not Have to be Large to Make a Difference

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