I-15/Railroad Canyon Road & Franklin Interchange Project

Logos for Roadway 

The Project:

The Railroad Canyon Road and I-15 Interchange is a significant regional transportation corridor, serving the cities of Lake Elsinore, Menifee, Canyon Lake and the County of Riverside. Due to the continuous growth in the area, for many years this interchange has faced increased traffic congestion and unnecessary delays for travelers. The current design can no longer adequately serve the community.

In cooperation with the Riverside County Transportation Commission (RCTC) and Caltrans, the City of Lake Elsinore is studying and planning potential improvement alternatives to improve this interchange.

The Final Environmental Document has been approved by Caltrans and the project is currently in the Plans, Specifications, and Estimate (PS&E) phase. PS&E Phase will provide contract documents to be advertised and let out for bid. The City has studied and considered several alternatives and has decided to proceed with Alternative 2 in Phase I.

The Project will reduce trip times and improve traffic circulation and capacity for on and off ramps at the interchange. It will also improve the level of service for the Grape Street/Summerhill Drive and Railroad Canyon Road Intersection.

Alternative 2: Northbound Hook Ramp

Project Description:

Phase I: (Image)

  • Reconstruct/widen Railroad Canyon Rd. under crossing from 4 to 6 lanes from Summerhill Dr. to Casino Dr.
  • Replace Northbound ramps with hook ramps at Grape St.
  • Add ramp acceleration/deceleration lanes at Railroad Canyon Rd. off ramps.

Design as of May 2018

Phase II: (Image)

  • Construct new full interchange at I-15/Franklin St.
  • Add auxiliary lanes from Franklin St. Interchange to Main St. Interchange and from Franklin Street Interchange to Railroad Canyon Road Interchange.
  • Widen Main Street and realign/widen Southbound on ramps from 1 to 2 lanes.
  • Construct new frontage road on the east side of 1-15

PowerPoint Update re: Railroad Canyon Road Interchange & Widening - July 2018 

PowerPoint Update to City Council - January 2019

* Click Here to View Final Environmental Document

Note this is a large file please allow sufficient time for download.

Project Schedule And Cost


Final Environmental Document Approved:

August 2017

PS&E Notice to Proceed:

September 2017

Completion of PS&E:

May 2019

Construction Advertise and Award:

December 2019

Construction Completion:


Estimated Construction Cost:

Phase I RR Canyon Interchange: $36 Million

Phase II New Franklin Street Interchange: $65.5 million


Public Outreach:

 The City has retained a public Outreach firm to provide the public with pertinent materials as soon as they are made available by the design consultant. This information will be updated throughout the Design and Construction phases.