The Point: Closure will allow crews to safely perform traffic switch to new southbound 71 lanes
Motorists making their way south through Chino and Chino Hills should avoid the southbound 71 or be prepared to face heavy traffic delays. RCTC’s 71/91 Interchange Project will require a full weekend closure beginning Friday, August 16 at 10 p.m. through Monday, August 19 at 5 a.m.
The full closure will safely allow crews to pave and stripe the final portion of the newly aligned southbound 71 lanes. During the weekend closure, crews will also perform a traffic switch to shift traffic onto these new lanes. This shift will extend southbound 71, create additional space for the new connector, and allow it to connect to northbound 71 lanes.
To avoid lengthy traffic delays, motorists are highly advised 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 the southbound 71 will be rerouted to the Butterfield Ranch Rd./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.
Make sure to stay informed by signing up for construction updates – text 7191interchange to (855) 793-2625 or sign up through the project webpage, rctc.org/71-91interchange.