The City of Corona, in partnership with the California Department of Transportation (Caltrans), District 8, was reconstructing the interchange located on Interstate 15 (I-15) at Cajalco Road from Temescal Canyon Road to Bedford Canyon Road. The $50 million dollar investment included the widening of Cajalco Road from a two-lane bridge to a six-lane overcrossing bridge on a new alignment north of the existing bridge. In addition, the bridge included a striped median, outside shoulders and a sidewalk on the southern side.

The existing northbound and southbound ramp intersections were reconfigured and all existing ramps have been realigned. The existing northbound on-ramp was modified to serve the westbound Cajalco Road traffic, and a northbound loop onramp has been constructed to serve the eastbound Cajalco Road traffic. The improvements will increase the capacity of the bridge and ramps in order to reduce congestion and accommodate projected growth in the area. Southstar provided Construction Management and Inspection Services throughout the duration of the project. 


Corona, CA

Completion Date

March 2020

Construction Capital Cost

$50 Million