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.
Want to see how your local transportation dollars are making a difference? The Measure I Strategic Plan highlights how San Bernardino County’s half-cent sales tax is fueling real progress—funding road repairs, reducing congestion, and improving transit across every city and town in the region. Share your ideas on how Measure I moves You.
Please provide your input on the Measure I booklet in the form below:
The Measure I Strategic Plan policies may be modified as necessary by the Board of Directors. Each proposed amendment is thoroughly discussed by representatives of the local agencies at the Transportation Technical Advisory Committee (TTAC) before it is presented to the Board for their approval.
The 10-Year Delivery Plan serves multiple purposes:
In addition to regional arterial, grade separation, and interchange projects contained in the 10-Year Delivery Plan, annually each member agency develops a Capital Improvement Plan which identifies individual projects to be completed using Measure I Local Streets Program funds. Here is a summary of the reports:
The Measure I 2010-2040 Expenditure Plan requires that a proportional share of State and Federal funds be reserved for use within each subarea of the county. In February 2015 the SBCTA Board of Directors adopted Policy 40023 to define and document how proportional shares will be determined for each State and Federal fund over which the SBCTA Board has allocation authority and how shares will be tracked over time.