As the main thoroughfare of San Bernardino County and a critical connection for the movement of goods across the country, the I-10 Corridor serves an average of 265,000 local and interstate travelers every day.

And now, with the county’s population expected to grow by half a million over the next 25 years, the San Bernardino County Transportation Authority (SBCTA) and Caltrans are adding two Express Lanes in each direction from the Los Angeles County Line to I-15 to accommodate for the projected increase in traffic.

The Project

Improvements expand the interstate freeway from 10 lanes to 12. Working alongside the SBCTA, HNTB is providing project and construction management (PCM) services for the design and construction of 10 miles of express lanes.

The managed lane project includes:

  • 11 miles of highway widening
  • 8 bridge widenings
  • 8 bridge replacements
  • 5 bridge improvements
  • Partial pavement rehabilitation

HNTB services include preliminary design of some project elements, right-of-way (ROW) engineering, preparation of design-build and toll service provider procurements, toll planning documents and toll operations requirements.

The firm is also assisting SBCTA, in coordination with Caltrans, with the planning, procurement, design, construction, installation, testing, operation, maintenance and general oversight of the I-10 Express Lanes project.

A Long-Term Solution

Once fully completed, the project is expected to reduce traffic congestion, increase throughput, enhance trip reliability and provide long-term congestion management, thus ensuring continuous and effective mobility for the corridor.

Location: Los Angeles, CA

Client: San Bernardino County Transportation Authority (SBCTA), California Department of Transportation (Caltrans)