Construction activities continue along the I-15 corridor, including sound wall and retaining wall construction, bridge reconstruction, and other improvements to support a wider freeway footprint. Concrete barriers (k-rail) remain in place along freeway shoulders to create safe work zones.

What to Expect:

• Daytime and nighttime work may impact traffic flow and travel time.
• Expect intermittent ramp and freeway lane closures. Please allow extra time to reach your destination.
• Drive with caution; watch for signage, construction vehicles, and crew members throughout the corridor.
• Reduced speed limits are strictly enforced in construction zones to protect both drivers and workers.

All construction is dynamic and subject to change. Please check the Google Map for the most updated closure and detour information.

Si prefiere recibir información de construcción en español, llame al (877) 55-SBCTA.

Caltrans began a $14.7 million bridge improvement project at the I-15/I-10 connector in Ontario in July 2025. This project will upgrade bridge rails, a bridge deck, drainage systems, ramp meter infrastructure, and maintenance pullouts. For more information, please click here to visit the Caltrans District 8 website.

Crews are working to build the foundation for future structures using cast-in-drilled holes (CIDH). This method first drills holes, then steel reinforcements are placed before concrete is poured into the holes.

The I-15 Corridor Freight and Express Lanes Project is a collaborative effort by the San Bernardino County Transportation Authority (SBCTA) and the California Department of Transportation (Caltrans) in coordination with the Riverside County Transportation Commission (RCTC). The 8-mile project from Cantu-Galleano Ranch Road in Jurupa Valley to just north of Foothill Boulevard in Rancho Cucamonga will add express lanes in the median of I-15 to join the existing express lanes in Riverside County and add auxiliary lanes to improve traffic operations and safety in the vicinity of the I-15/SR 60 and I-15/I-10 interchanges.

Sign up for text messages by texting i15expresslanes to (888) 525-1021 (Reply STOP to cancel, text HELP for help. Normal text and data message rates may apply.)

877-55-SBCTA

info@goSBCTA.com