Riverside County Projects
Riverside County Transportation Department

Cajalco Road Widening

Cajalco Road Widening

Project Overview

The Riverside County Transportation Department is proposing to widen and realign Cajalco Road between Temescal Canyon Road to the west and Interstate 215 (I-215) to the east. The project is located in Riverside County, California and covers a distance of approximately 16 miles. A small portion of the westernmost part of the alignment is located in the city of Corona. The project would widen the roadway to four lanes between Harvill Avenue and Temescal Canyon Road, and to six lanes between the I-215 southbound ramps and Harvill Avenue.

Please note, this project is not the Mid County Parkway project. The Mid County Parkway is a freeway level facility that has been proposed by the Riverside County Transportation Commission for improving east-west mobility in Riverside County. The Cajalco Road Widening project is in fact part of an alternate strategy to provide east – west mobility by widening several existing regional facilities rather than constructing a new freeway level facility.

Click here for other Safety Improvements on Cajalco.

project schedule

  • EIR/EIS available for Public Review: Mid 2020

  • Environmental Clearance: Late 2021

Project Documents

Cajalco Information Pamphlet (pdf)

☎  Project CONTACT

Scott Staley
(951) 955-2092


Upcoming Events

Proposed Alternatives

Alternative 1

Widen Existing Cajalco Road from Temescal Canyon Road to I-215 including Minor Alignment Changes between Temescal Canyon Road and Gustin Road

Alternative 2C

Widen Existing Cajalco Road between Temescal Canyon Road and from just west of Lake Mathews Drive to Interstate 215; Construct New Segment of Cajalco Road between La Sierra Avenue and just west of Lake Mathews Drive

Alternative 4

Widen Existing Cajalco Road between I-215 and Gustin Road; Widen and improve El Sobrante Road between Gustin Road and La Sierra Avenue; Realign La Sierra Avenue between El Sobrante Road and Cajalco Road; Widen existing Cajalco Road with minor alignment changes between La Sierra Avenue and Temescal Canyon Road.


No Project Alternative

Under the No Project Alternative Cajalco Road would remain a two-lane roadway. The roadway would remain as constructed with the exception of the portion between Brown Street to Day Street where a center turn lane is in the planning stages and is scheduled to be constructed well in advance of the proposed project.

Proposed Typical Sections

Proposed Typical Sections for the various segments of each alternative

Project Photos