Measure I

Measure I is San Bernardino County’s half-cent sales tax dedicated to transportation improvements, first approved by voters in 1989 and extended in 2004. Administered by the San Bernardino County Transportation Authority (SBCTA), Measure I ensures that funds are reinvested locally through a “return-to-source” policy, meaning each region benefits directly from the revenue it generates.

This approach has supported a wide range of projects—from freeway expansions and interchange upgrades to public transit enhancements and local road repairs—across the county’s 24 cities and towns. SBCTA’s ongoing commitment to transparency and accountability, including oversight by an Independent Taxpayer Oversight Committee, reflects its dedication to fulfilling voter expectations and delivering tangible transportation solutions.

FAQs

What is Measure I and Why It Matters

Measure I is our local transportation funding – it’s a half-cent sales tax that stays right here in San Bernardino County.
It helps us fix roads, build safer sidewalks, expand transit, and ease traffic in every corner of the county.
The voters said ‘yes’ to Measure I in 1989, and again in 2004, because they care about how we get around – safely, efficiently, and sustainably.
It’s how we’ve Moved Forward Together with Measure I – creating a better-connected county for everyone.

Local Impact You Can See and Feel

Every city and town gets funding for their top priorities – things like fixing potholes, widening busy streets, and building safer routes to school.
It’s helped fund more than 150 transportation projects so far – making our roads, freeways, and rail systems work better for everyone.
Since 2010, we’ve brought in $2.9 billion from state and federal sources by committing $682 million of Measure I funds. That’s a great return on investment.
It’s local dollars delivering local results – and that’s how we’re Moving Forward Together with Measure I.

Better Options, More Choices

People want more choices – not just improvements. That’s why we’re investing in passenger rail, zero-emission buses and rapid transit routes, express lanes on I-10 and I-15, and zero-emission trains.
We launched a cleaner diesel-powered passenger train on Metrolink’s San Bernardino Line through the Arrow Corridor between Redlands and San Bernardino in 2022 – and later this year we’ll debut North America’s first hydrogen and battery-powered passenger train right here in our county.
These new options mean more ways to connect – because we’re Moving Forward Together because of Measure I.

Built for Our Communities

What’s special about Measure I is that it has local control, local dollars, and local results. We don’t wait for another entity to tell us what to do – we set our own priorities for our county.
In mountain and desert areas, Measure I helps us maintain critical roadways and prepare for future growth. In the valley, it means smoother commutes, improved transit, and safer neighborhoods.
Measure I is built around our communities – because that’s how we move forward together.

What It Means for Our Future

Transportation touches everything – jobs, safety, clean air, affordability, and time with our families.
Measure I helps us build a future where you can drive, walk, ride, or take the train with confidence that it’s going to work for you.
We’re building smarter systems, protecting what we’ve built, and making sure every community benefits.
It’s about progress, partnership, and shared success – Moving Forward Together with Measure I.