State Route 71 - Caltrans Freeway Projects
State Route 71 Freeway Conversion Project
In spring 2021, the California Department of Transportation (Caltrans) will begin a project along State Route 71 (SR-71) to increase freeway capacity and relieve existing traffic congestion. The project will widen State Route 71 between Interstate 10 and the Los Angeles/San Bernardino County line to convert the existing 4-lane expressway to a full 8-lane standard freeway and provide carpool lanes on SR-71 between Interstate 10 and State Route 91. The work will involve adding one mixed flow lane and one High Occupancy Vehicle (HOV) lane in each direction and replace two existing bridge structures over railroads and an existing pedestrian overcrossing as well as constructing retaining walls and sound walls.
SR-71 between Interstate 10 and the Los Angeles/San Bernardino County line at State Route 60.
Phase 1 (Mission Blvd to Los Angeles/San Bernardino County line)
Construction Phase: Spring 2021 to Spring 2024
Phase 2 (I-10 to Mission Blvd)
Construction Phase: Spring 2024 to Spring 2027
Phase 1 (SR-60 to Mission Blvd) - $174,000,000
Phase 2 (Missions Blvd to I-10) - $170,000,000
SR-71 Slab Replacement From Chino Hills to Santa Ana Riverbed
The California Department of Transportation (Caltrans) will begin work on a slab replacement project on State Route 71 (SR-71) in and near Chino and Chino Hills. The project will feature bridge deck approach resurfacing, slab replacement and installation of polyester concrete from the LA / San Bernardino County line to just south of the Santa Ana Riverbed.
SR-71 from the LA / San Bernardino County line near State Route 60 to just south of the Santa Ana Riverbed
Beginning in July, Caltrans will begin placing signage to prep for the construction work. The project is expected to be complete in the late Fall of 2021. Schedules can change due to inclement weather.
Traffic impacts may include:
- Hours of operation: Monday through Friday from 8:00 p.m. to 6:00 a.m. nightly.
- Lane and ramp closures with the possibility of full closures; Alternative routes will be provided.