Heads Up! Full Weeknight Closures of Southbound 71 at Euclid Ave, September 16 through Early-October

Motorists traveling on southbound 71 through Chino Hills are advised to stay alert for weeknight full closures of southbound 71 at Butterfield Ranch Rd/Euclid Ave. The Monday through Friday nighttime closures of southbound 71 are scheduled from Monday, September 16 through early-October as part of RCTC's 71/91 Interchange Project. The southbound 71 to eastbound and westbound 91 connectors will also be closed.

The closures will take place from 9 p.m. to 5 a.m., Monday through Thursday nights, and midnight to 6 a.m. on Friday nights. During these nighttime closures, construction crews will be building a new portion of support structures for the new eastbound 91 to northbound 71 connector. Additional nighttime lane reductions along eastbound and westbound 91 may also occur during these nightly closures.

To avoid traffic delays, motorists are urged to avoid the southbound 71 and use southbound 57 or southbound I-15 to reach the 91 and other destinations located to the south.

Motorists traveling on southbound 71 will be rerouted to the Euclid Ave off-ramp in Chino Hills. Traffic will be detoured northbound along Euclid Ave to either eastbound or westbound 60, where motorists can travel to either southbound I-15 or southbound 57. Fire, police, and ambulance services will have access for emergency response.

Construction activity is subject to change due to site conditions, weather, or other factors. If the work cannot be completed, it will be rescheduled as soon as possible.

To register for construction updates, text 7191interchange to (855) 793-2625 or sign up through the project webpage, rctc.org/71-91interchange. For the latest closure information, visit rctc.org/7191Closures.