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Construction Notices

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New 91 Express Lanes to Open

Post Date:03/10/2017 12:00 PM
Westbound and Eastbound 91 Lane and Ramp Closures through Corona
March 10 - March 20, 2017
New 91 Express Lanes to Open Morning of March 20, 2017


As part of the Riverside County Transportation Commission's (RCTC) 91 Project, crews will be working day and night for the next 10 days to prepare the new 91 Express Lanes and general purpose lanes for opening in Corona on Monday, March 20, 2017. Westbound lanes are planned to open by 4 am, and eastbound lanes are planned to open by 5 am on March 20.

There will be multiple lane closures and intermittent ramp closures nightly in both directions between the Riverside/Orange County line and 15 from now until March 20. The most significant work will take place between Thursday, March 16 and Sunday, March 19. While the 91 will not be closed fully during this time, motorists should expect delays of at least one hour when driving eastbound on the 91 through the project limits on March 19. Motorists are encouraged to avoid the area by using State Route 57 and State Route 60 as alternate routes or to travel via Metrolink. Allow extra travel time and check real-time traffic information using

Although the new lanes will open on March 20, construction work will be ongoing until the fall, with periodic closures required.

For questions about the 91 Project in Riverside County, please call the helpline or visit the website at

NOTE: Information contained in this Notice is subject to change based on weather, field conditions or other operational factors.

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