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TransportationHesperia3 min read

I-15 SB Cajon Weigh Station Relocation Boost Safety, Traffic Flow

The I-15 Southbound Cajon Weigh Station relocation project is underway, promising safer roads and less congestion for High Desert drivers and truckers. Caltrans expects the new facility to open by summer 2025.

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CalTrans Weigh Station Closure In Hesperia
CalTrans Weigh Station Closure In Hesperia (Courtesy CalTrans)

Caltrans moves forward with major I-15 project, aiming to improve safety and ease congestion for High Desert commuters

CalTrans I-15 Southbound Cajon Weigh Station relocation
CalTrans I-15 Southbound Cajon Weigh Station relocation (Courtesy CalTrans)

Hesperia, California (High Desert News Online) – The I-15 Southbound Cajon Weigh Station relocation is underway, marking a significant step toward safer, smoother travel for High Desert commuters and truckers navigating the busy Cajon Pass.

Why the I-15 Southbound Cajon Weigh Station Relocation Matters

The I-15 Southbound Cajon Weigh Station relocation is a major infrastructure project led by Caltrans. The project addresses long-standing safety and congestion concerns for drivers traveling through the Cajon Pass. The old weigh station, now closed, was outdated and often contributed to traffic slowdowns as trucks entered and exited the facility. By relocating the weigh station to the top of the pass near the Truck Safety Brake Check Area, Caltrans aims to create a safer and more efficient route for everyone.

Project Timeline and What to Expect

Construction on the I-15 Southbound Cajon Weigh Station relocation began in late 2023 and is expected to continue until June 2025. During this period, commuters and truck drivers will encounter lane and ramp closures, especially at night. Temporary speed limits and concrete barriers, known as K-rails, are in place to protect workers and motorists. Caltrans urges all drivers to remain alert and follow posted signs in the construction zones.

Benefits for High Desert Commuters and Truckers

The Cajon Pass is a critical link between the High Desert and Southern California. Every day, thousands of trucks and commuters rely on this stretch of I-15. The I-15 Southbound Cajon Weigh Station relocation will help:

  • Improve traffic flow by reducing bottlenecks at the old weigh station site
  • Enhance safety by allowing law enforcement to better inspect commercial vehicles
  • Support the local economy by ensuring goods move efficiently through the region

These improvements are essential for the growing High Desert community, where reliable transportation is key to jobs, commerce, and daily life.

How the Weigh Station Relocation Will Affect Your Commute

Drivers should prepare for changes while the I-15 Southbound Cajon Weigh Station relocation is underway. Expect periodic lane and shoulder closures, lower speed limits, and occasional full ramp shutdowns. The brake check area past Oak Hills is also closed until the new facility is complete. Caltrans recommends planning ahead and considering alternate routes such as SR-138 or SR-18 during peak construction times.

A Safer, More Reliable I-15 Corridor

The I-15 Southbound Cajon Weigh Station relocation is more than just a construction project-it’s an investment in the future of the High Desert. By modernizing this key checkpoint, Caltrans is helping to ensure that the I-15 corridor remains safe, efficient, and ready for continued growth. Local law enforcement will continue to monitor the area to keep both workers and travelers safe throughout the project.

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Sharon Green

Sharon is a longtime Sonoma County writer whose work brings depth and humanity to local stories—from vineyards and politics to art and community life — reflecting his lifelong connection to the land and people of the region.

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