Interstate 15 Improvements
Working to improve traffic capacity and operations on Interstate 15 (I-15), the Riverside County Transportation Commission (RCTC) and California Department of Transportation (Caltrans) District 8 are exploring widening the highway from just north of the I-15/ I-215 separation near Murrieta, northward to State Route 60 (SR-60) near Ontario.
The project includes the study of two build alternatives and a no build alternative. Build Alternative 1 proposes to add one Carpool (HOV) lane and one regular or general purpose lane in each direction from SR-74 to SR-60 and one HOV Lane from I-215 to SR-74. The widening of this facility will occur by utilizing the unpaved center median whenever possible. Build Alternative 2 will add two Tolled Express lanes and one general purpose lane in each direction from SR-74 to SR-60 and one HOV Lane from I-215 to SR-74.
The proposed I-15 Corridor Improvement Project (CIP) stretches approximately 44 miles in length, traveling through Murrieta, Wildomar, Lake Elsinore, Corona, Norco and portions of unincorporated Riverside County. As an element of RCTC’s 10-year western county highway delivery plan, the project currently has an estimated construction cost of $1.7 to $2.5 billion.
What's New?
- The I-15 Corridor Improvement Project started in April 2008 with the Preliminary Engineering and Environmental Phase.
- The first round of Public Information Meetings were conducted in Spring 2009.
- Mapping and surveys are complete.
- Traffic forecasting is complete for the I-15 roadway and interchanges.
- The project team is actively coordinating with interchange projects at:
- Cajalco Road
- Magnolia Avenue
- Central Avenue (SR-74)
- Railroad Canyon Road
- Murrieta Hot Springs Road
- Technical studies are ongoing.
- Environmental approval is expected by Summer 2012.
Project Map
Click here to enlarge the map.
