Riverside County Projects
Riverside County Transportation Department

Portola Interchange

Portola Interchange Project

Project Overview

The County of Riverside (County), in cooperation with the California Department of Transportation (Caltrans) and the City of Palm Desert (City), proposes to construct a new interchange on Interstate 10 (I-10) at Portola Avenue. The limits of work for this project are along I-10, approximately from post mile (PM) 44.8 to PM 46.6. The project includes the construction of a new structure crossing I-10 and the Union Pacific Railroad (UPRR), construction of associated on- and off-ramps, and the realignment of the adjacent frontage road, Varner Road. Auxiliary lanes in each direction of I-10 between the new Portola Avenue ramps and the adjacent interchanges at Cook Street and Monterey Avenue would also be constructed.


project schedule

  • Design Phase completion: Summer 2020

  • Right of Way completion: Summer 2020

  • Construction Start: Summer 2020

  • Construction End: Summer 2022

☎  Project CONTACT

John Marcinek
(951) 955-3727


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