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Construction Gets Underway on Interstate 15 in San Bernardino County

February 12, 2025

The San Bernardino County Transportation Authority (SBCTA) is expanding its SB Express Lanes network by adding eight miles of tolled lanes on Interstate 15 (I-15) between Cantu-Galleano Ranch Road in Riverside County to Foothill Boulevard in Rancho Cucamonga. This stretch of I-15, which includes the SR 60 and I-10 interchanges, and one of the largest logistics centers in the U.S., is considered one of the most congested bottlenecks while serving 50 percent of the interstate truck traffic to and from Southern California.

The addition of express lanes will offer more choices for drivers and create a seamless experience connecting to Riverside County Transportation Commission’s (RCTC’s) I-15 Express Lanes. The addition of express lanes, along with auxiliary lanes in strategic sections, will relieve congestion and improve traffic flow for everyone on I-15 while strengthening the link between coastal ports and the critical movement of goods across the country.  

To commemorate the start of construction, SBCTA and the city of Rancho Cucamonga will host a kick-off event on Thursday, February 27, at 10 a.m. at Rancho Cucamonga Civic Center Courtyard (10500 Civic Center Drive, Rancho Cucamonga, CA 91730).

Learn more about the I-15 Express Lanes and Freight Improvement Project at goSBCTA.com/i15corridor.

To address climate adaptation and resiliency, it will be important to incentivize transit and shared rides where possible. Major transit service improvements in bus and rail systems and zero-emission buses and trucks are all part of the climate adaptation strategy. The LRMTP also expresses support for development of hydrogen hubs and zero-emission charging/fueling infrastructure.

Since San Bernardino County includes many areas designated as disadvantaged according to State and Federal criteria, the strategic priorities include continuation of demand-responsive service for residents with limited mobility options, increased free and reduced fare programs, and prioritization of multimodal improvements.

The reality is that the limiting factor for implementation of LRMTP projects will be funding.

Nonetheless, the Draft Strategic Priority Action Plan identifies tactics aimed at securing additional funds through State and Federal opportunities, additional flexibility in a future Measure I, use of excess toll revenue for transit, development of a vehicle miles traveled mitigation bank, continued contributions from new development, as well as the continued effort to pursue State and Federal grants.

A full draft will be prepared and is expected to be released this month. A review period will follow and a final LRMTP report brought back to SBCTA committees in February 2025.

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