Riverside County Projects
Riverside County Transportation Department

Monroe St Grade Separation

Monroe Interchange Project

Project Overview

The County of Riverside (County), in cooperation with the California Department of Transportation (Caltrans) and the City of Indio, proposes to reconstruct and widen the Monroe Street interchange on the I-10 freeway to improve traffic flow.

Improvements include reconstructing and widening the freeway on- and off-ramps at the I-10/Monroe Street Interchange and replacing the Monroe Street overcrossings of I-10 and the Coachella Valley Stormwater Channel on Whitewater River to accommodate additional through lanes, turn lanes, and CV Link http://www.coachellavalleylink.com/. CV Link is a multi-modal active transportation pathway which accommodates pedestrians, bicyclists, and low-speed electric vehicles (LSEVs)—including golf carts.  The proposed project will reduce traffic congestion, while improving mobility, traffic operations, and safety on Monroe Street at the I-10 freeway. 

The project is currently in the Project Approval and Environmental Document (PA/ED) phase and two project alternatives are under study for recommendation and approval.  The project study alternatives are illustrated below:

Alternative 2

A Tight Diamond Interchange (TDI) would retain the existing interchange layout but improve traffic flow by constructing additional traffic lanes, improving existing geometry, and adding new mobility elements.

Alternative 4 Web Image.jpg

Alternative 4

A Diverging Diamond Interchange (DDI) would reduce conflict points and improve traffic flow by eliminating left- and right-turn movements at the intersections, constructing additional traffic lanes, improving existing geometry, and adding new mobility elements.

 

☎  Project CONTACT

John Ashlock
(951) 955-1511

jashlock@rivco.org

 

project schedule

  • Design Phase Completion: Fall 2022

  • Right of Way Completion: Spring 2023

  • Construction Start: Spring 2023

  • Construction Completion: Fall 2025

Estimated Construction Cost: $75 Million


Project Documents


Project Photos 

 

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