SR-71 is a major regional highway transportation facility traversing parts of Los Angles, San Bernardino, and Riverside County. It is a connecting link for major east-west corridors passing through the area and serves as an inland passageway for interregional travel between San Diego and the easter portion of the Los Angeles area.

State Route 71 to Interstate 10 Freeway Conversion Project. In spring 2021, Caltrans District 7 began a project along SR-71 to increase freeway capacity and relieve existing traffic congestion. The project will widen SR-71 between Interstate 10 and the Los Angeles/San Bernardino County line to convert the existing 4-lane expressway to a full 8 ...

6 days ago · The Riverside County Transportation Commission’s 71/91 Interchange Project will continue nightly full closures (Monday – Friday) of southbound 71 at Butterfield Ranch Rd./ Euclid Ave. in Chino and Chino Hills.

This project proposes to upgrade three miles of existing four-lane express way to an 8-lane freeway on Route 71 from Interstate 10 to the Los Angeles/San Bernardino County line.

Mar 2, 2023 · This week, Metro revealed new details about the under-construction widening of the 71 Freeway in the city of Pomona. Metro and Caltrans had promoted the project as a nearly 2-mile-long freeway widening, with an upgraded pedestrian overcrossing - but it has been quietly scaled back to a ~1.5-mile widening with no pedestrian component.

Jun 17, 2021 · There was no on-the-ground groundbreaking, just a virtual one - a video posted to YouTube, featuring Caltrans District 7 Director Tony Tavares and a host of area elected officials. The SR-71 project will convert about 3.5 miles of existing four-lane expressway into an …

Mar 4, 2025 · Starting this week, crews will be completely closing the 71 Freeway southbound from Butterfield Ranch in Chino Hills to the 91 Freeway, which will have lane reductions throughout March.

The southbound 71 Freeway in Chino and Chino Hills will be closed for the entire weekend starting Friday night. The Riverside County Transportation Commission said the closure is for a $134...

Aug 14, 2021 · Caltrans will keep the southbound side of the 71 Freeway closed through 4 a.m. Monday, Aug. 16 to continue work on the $4.2 million slab replacement project from the Los Angeles County line to just south of the Santa Ana Riverbed.

Mar 4, 2025 · Seven miles of the 71 Freeway will close nightly for the next month for the 71/91 Freeway interchange construction project. Nicole Comstock reports.