Plan. Build. Move.

Learn how SBCTA and Caltrans are working together to extend the eastbound truck climbing lane on Interstate 10. With construction underway, this project will improve traffic operations and enhance safety throughout the corridor.

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I-10 Express Lane

SB Express Lanes – I-10 Express Lanes

I-10 Express Lanes will widen the existing I-10 freeway between the Los Angeles/San Bernardino County line and I-15, a distance of approximately 10 miles. The project includes two tolled express lanes in each direction.


West Valley Connector (BRT)

The West Valley Connector project is a 100% zero-emission Bus Rapid Transit (BRT) system, the first stage of the San Bernardino County zero-emission Bus Initiative and second BRT route in San Bernardino County. Phase I of the project is 19 miles and will upgrade a portion of existing Route 61 which runs along Holt Boulevard, adding approximately 3.5 miles as center running, dedicated bus-only lanes. There will be 21 stations in Phase I that will provide an improved transit connection to Ontario International Airport (ONT) and help build transit connectivity by linking ONT, two Metrolink lines (San Bernardino and Riverside) and multiple major activity centers along the route including Ontario Mills and Victoria Gardens.

Mt. Vernon Viaduct

Mt. Vernon Avenue Bridge

The Mount Vernon Avenue Bridge over the BNSF Intermodal Railway Yard in the City of San Bernardino is showing its age and is in need of improvement. In December 2020, the bridge closed to all traffic (pedestrian, bicycle, and vehicular) between 2nd Street and 5th Street. Over the next three years, crews will disassemble and completely rebuild the bridge. Once complete, the new bridge will provide a reliable connection for westside San Bernardino communities.

1-10 Cedar Project

I-10 Cedar Avenue Interchange

The San Bernardino County Transportation Authority (SBCTA), the County of San Bernardino, City of Fontana, and City of Rialto will improve Cedar Avenue between Bloomington Avenue and Orange Street in the unincorporated community of Bloomington. As a major north-south arterial that experiences high levels of traffic congestion resulting in low levels of service, the project is designed to relieve congestion, enhance safety, and improve traffic operations

North First Avenue Bridge

The San Bernardino County Transportation Authority (SBCTA), in cooperation with the City of Barstow and Burlington Northern Santa Fe (BNSF) Railroad, is leading the construction effort to replace the existing North First Avenue bridge over a BNSF railyard. The bridge was built around 1930 and during the Bridge Inspection Report prepared by Caltrans in April 2012, the bridge Sufficiency Rating (SR) was 3 out of 100.

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3 months ago

San Bernardino County Transportation Authority - SBCTA
Crews continue to build the freeway median between Sixth Street and Campus Avenue as part of the I-10 Express Lanes project. The overall project is 92% complete. 

Be in the know before you go, visit to view the project Google Map for real-time closures, detours, and updates. #i10expresslanesproject

Comment on Facebook

When will the 6th Street bridge open?

Y’all need to wrap this dangerous construction up. Got 4 lanes lanes swiveling apart with huge bumps. Surprised nobody has crashed into the wall y’all put between the lanes.

Nobody wants or asked for express lanes

What have you won lately? Nickolas won our sweepstakes when he told us where he went on public transit. Congratulations, Nickolas, for your trip on @Omnitrans from Baseline & Medical Center, making an easy transfer at the San Bernardino Transit Center to get to Hospitality Lane. Who’s our next winner? Enter at

Comment on Facebook

Congrats!! 💙💚

Mt. Vernon Avenue has been reduced to one lane in each direction from Kingman Street to just south of 5th Street to allow crews to create space and safely perform work. This configuration is expected to remain in place during bridge construction. 

Be in the know before you go, visit and sign up to receive construction alerts via email or text. 

City of San Bernardino Municipal Government San Bernardino County 

#MtVernonBridge #gosbcta #underconstruction #stayconnected #transportation #construction

Comment on Facebook

it's good take the city 3 or 4 years to complete this one just like the Washington Bridge

A concrete pour on frame two of three of the newly constructed North First Avenue Bridge is scheduled to occur this Friday during daytime hours. Motorists are advised to plan ahead as there may be heavy traffic on the south side of the project corridor during this time. 

Be in the know before you go, visit for project updates. 

Caltrans District 8 City of Barstow - The Hub of the West
The New Year marks an important anniversary in the history of San Bernardino County – 20 years since voters overwhelmingly extended Measure I and, in the process, acknowledged the importance of public investment in our transportation future.

Today, the half-cent sales tax included under Measure I generates about $240 million per year to improve local streets, expand freeway capacity, keep our bridges and overpasses safe, and support critical transit projects across the nation’s largest geographic county. While the demand for transportation far exceeds the ability of Measure I to raise funds, can you imagine San Bernardino County without it?

Click here to learn what extending Measure I back in 2004 has done for our community:
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