Connecting Our Communities

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 study alternatives are illustrated below:

Alternative 2 Selected Alternative

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

 

☎  Project CONTACT

John Ashlock
(951) 955-1511

jashlock@rivco.org

 

Project Schedule

  • Environmental Phase: December 2020 (Completed)

  • Final Design: Fall 2023 (Ongoing)

  • Right of Way: January 2024

  • Construction Start: Summer 2025

  • Construction Completion: Fall 2027

Estimated Construction Cost: $63-65 Million



Project News

In December 2020, the project completed the preliminary design phase and received environmental clearance for the Initial Study with Mitigated Negative Declaration/Environmental Assessment with Finding of No Significant Impact. The final design phase began in early 2021.


Project Photos