The Point: Drivers will have a new lane on southbound I-15 from Cajalco Road to Weirick Road

In the blink of a construction eye, the new southbound 15 lane between the Cajalco Road on-ramp in Corona and the Weirick Road off-ramp in Temescal Valley is opening. Exactly two months ago, RCTC announced that crews were placing k-rail and staging equipment to start work. Fast forward to Saturday morning, July 23, and the opening of the new lane!

RCTC’s I-15 Interim Corridor Operations Project added a non-tolled lane next to the right-hand shoulder to help improve traffic flow in this heavily traveled area. To add the lane, crews strengthened the shoulder pavement to handle the extra weight of vehicles and restriped the roadway.

“Finding ways to help improve traffic operations and enhance driver safety brings our communities together,” said RCTC Vice Chair Robert Magee, who also serves as a Lake Elsinore City Council Member. “The I-15 Interim Corridor Operations Project continues RCTC’s efforts to identify and deliver transportation solutions that benefit our residents, our communities, and our economy.”

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This project was a collaboration between RCTC, Caltrans, the City of Corona, the County of Riverside, and the California Highway Patrol. The partners discussed ways to improve traffic operations in the area and moved forward with this speedy solution.

The lane will open with temporary signs; crews will be installing permanent signs in the coming days. Please watch for lane closure announcements for the overhead sign installation by following @therctc on Facebook, Twitter, and Instagram or by visiting

RCTC has been on a roll this year to deliver projects. The 91 Corridor Operations Project in Corona opened in January, the I-15 Railroad Canyon Road Interchange in Lake Elsinore opened in April, and the Route 60 Truck Lanes in Riverside County’s Badlands opened in May. RCTC also expects to open the I-215 Placentia Avenue Interchange in Perris this fall.