Project Status: PRE-CONSTRUCTION


Location: Interstate 15 between Cajalco Road in Corona and State Route 74 (Central Avenue) in Lake Elsinore

Construction: Long Range; could begin as early as 2025

Investment: $544 million estimate for pre-construction, design, construction; $50 million for current preliminary engineering and environmental studies phase

OVERVIEW


The Riverside County Transportation Commission, in partnership with Caltrans, will be conducting preliminary engineering and environmental studies to support an Environmental Impact Statement and Environmental Impact Report for the proposed Interstate 15 Express Lanes Project Southern Extension. RCTC is leading development of this project.

The proposed project would extend the I-15 Express Lanes currently under construction south between Cajalco Road in Corona and State Route 74 (Central Avenue) in Lake Elsinore. The 14.5-mile segment would extend from Corona, through the unincorporated Riverside County community of Temescal Valley, and into Lake Elsinore. The project proposes adding two Express Lanes in both directions within the I-15 median.

Once built, the project would expand the region’s express lanes network and provide a new transportation option for motorists in southwestern Riverside County.

RCTC received $50 million in state funding in 2018 for the preliminary engineering and environmental studies. The Commission expects to select a consultant to begin this work in 2019.

The Environmental Impact Statement and Environmental Impact Report phase of work will take approximately five years, due to the complexity of the project corridor, which crosses multiple jurisdictions, widens 14 bridges, and may affect numerous waterways.

Pending project approval, RCTC expects to use a design-build approach to expedite the delivery of the project. Construction could begin as early as 2025 and the new lanes could open in 2028, if RCTC is able to secure funding. The total project cost is estimated to be $544 million. RCTC is exploring federal, state, and local sources, including future toll revenues, for funding.

  • 2007: RCTC and Caltrans complete I-15 Corridor Project Study Report-Project Development Support, which included study of a 44-mile corridor along I-15 between State Route 60 and I-215 in Temecula.
  • 2016: The I-15 Corridor Project is subdivided, and the 15-mile I-15 Express Lanes Project is approved between State Route 60 and Cajalco Road. (The 15 Express Lanes Project is currently under construction).
  • 2017: RCTC seeks state funding for the I-15 Express Lanes Project Southern Extension, a 14-5-mile segment between Cajalco Road and State Route 74 (Central Avenue).
  • 2018: The California Transportation Commission awards $50 million to RCTC to conduct preliminary engineering and environmental studies for the I-15 Express Lanes Project Southern Extension.
  • 2018: RCTC issues a Request for Qualifications for firms to complete the preliminary engineering and environmental studies, with contract award expected in spring 2019.

Environmental Documents

    • Record of Decision (Aug 2015), click here.
    • Federal Register Notice of Limitations on Claims for Judicial Review of Actions by the FHWA pursuant to 23 U.S.C 139 and other Federal agencies, click here.

Volume I - Chapters 1 - 2 and Chapters 4 - 7

Vol I Cover.pdf – 72.17 KB
1.0 Proposed Project.pdf – 5.30 MB
2.0 Project Alternatives.pdf – 56.48 MB
4.0 CEQA.pdf – 763.30 KB
5.0 Comments and Coordination.pdf – 349.48 KB
6.0 List of Preparers.pdf – 41.99 KB
7.0 Distribution List.pdf – 320.69 KB
Master TOC.pdf – 58.38 KB
Summary.pdf – 479.81 KB

Volume 1 - Chapter 3

Volume II (Appendicies A-I and Appendicies K-N)

Volume II (Appendix J-Supplemental Ch 5 Attachments)

App J Supplemental Ch 5 Attachments.pdf – 92.14 KB
Attachment J-1.pdf – 9.73 MB
Attachment J-2_1.pdf – 2.41 MB
Attachment J-2_10.pdf – 219.89 KB
Attachment J-2_11.pdf – 1.74 MB
Attachment J-2_12.pdf – 8.16 MB
Attachment J-2_13.pdf – 531.94 KB
Attachment J-2_14.pdf – 1.74 MB
Attachment J-2_2.pdf – 2.58 MB
Attachment J-2_3.pdf – 1.95 MB
Attachment J-2_4.pdf – 1.45 MB
Attachment J-2_5.pdf – 13.24 MB
Attachment J-2_6.pdf – 394.75 KB
Attachment J-2_7.pdf – 755.16 KB
Attachment J-2_8.pdf – 3.26 MB
Attachment J-2_9.pdf – 6.31 MB
Attachment J-3.pdf – 17.56 MB
Attachment J-4.pdf – 20.93 MB
Attachment J-5.pdf – 2.87 MB
Attachment J-6.pdf – 5.97 MB
Attachment J-7.pdf – 791.41 KB

Volume III

Vol III Cover.pdf – 64.50 KB
App O Parcel Acquisitions.pdf – 342.94 MB
App P Habitat Mitigation and Monitoring.pdf – 17.19 MB
App Q References.pdf – 73.07 KB
App R Index.pdf – 108.43 KB
App S RTC.pdf – 105.52 MB
App T MSHCP.pdf – 47.66 MB
App U MOA.pdf – 46.78 MB
App V RTC.pdf – 8.22 MB
App W BO.pdf – 662.15 KB

  1. Addendum to the Community Impact Assessment (January 2012; 21 MB)
  2. Air Quality Analysis (March 2012; 7 MB)
  3. Archaeological Evaluation Proposal (November 2007)
    Contact RCTC: Confidential Content
  4. Community Impact Assessment (June 2008; 150 MB)
  5. Draft Preliminary Drainage Report (March 2011; 37 MB)
  6. Draft Project Report (November 2012; Approved January 2013; 2 MB)
    Attachments:

  7. Draft Relocation Impact Report (December 2011; 700 KB)
  8. Extended Phase I Survey Proposal (May 2007)
    Contact RCTC: Confidential Content
  9. Finding of Effect (November 2012)
    Contact RCTC: Confidential Content
  10. Hazardous Waste Initial Site Assessment (July 2011; 7 MB)
  11. Historic Property Survey Report (June 2012)
    Contact RCTC: Confidential Content
  12. Natural Environmental Study (July 2008; 146 MB)
    (Appendicices A-R) Jurisdictional Delineation Report (May 2007; revised February 2008):

  13. Noise Abatement Decision Report (April 2012; 19 MB)
  14. Noise Study Report (January 2012; 161 MB)
  15. Paleontological Resources Identification and Evaluation Report (March 2008; 494 MB)
  16. Preliminary Geotechnical Design Report for the Project Report and Environmental Document (March 2008; 43 MB)
  17. Preliminary Recommendations of Eligibility and Level of Effects Report (July 2008)
    Contact RCTC: Confidential Content
  18. Storm Water Data Report (October 2011; 11 MB)
  19. Summary of Floodplain Encroachment (September 2011; 145 MB) Includes: Location Hydraulic Studies
  20. Supplemental Extended Phase 1 Proposal (October 2007)
    Contact RCTC: Confidential Content
  21. Supplemental Paleontological Resources Identification and Evaluation Report (September 2011; 47 MB)
  22. Supplement to the Natural Environment Study (December 2011; 33 MB) Includes: Potential Impacts of Alternatives to Waters of the United States, Riparian Ecosystems, and Threatened and Endangered Species (October 2011) and Supplemental Jurisdiction Delineation Report (October 2011)
  23. Errata Memorandum for the Supplement to the Natural Environment Study (November 2012; 2 MB)
  24. Traffic Technical Report (February 2012; 23 MB)
  25. Visual Impact Assessment (August 2011; 19 MB)
  26. Water Quality Assessment Report (6 MB)

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RCTC 1-15 Express Lanes and Southern Extension Project combo image