I-15 Express Lanes Extend to Ease Riverside Traffic
Published Date: 1/28/2026
Notice
Summary
Caltrans just got the green light to extend the I-15 Express Lanes from Lake Elsinore to Corona, making your drive smoother in Riverside County. This means new permits and approvals are locked in, and if anyone wants to challenge this, they must act by June 29, 2026. The project promises better traffic flow and is moving full speed ahead!
Analyzed Economic Effects
2 provisions identified: 1 benefits, 1 costs, 0 mixed.
I-15 Express Lanes Authorized in Riverside
Federal and state agencies have issued final approvals to build two new express lanes in each direction (four lanes total) in the median of I-15 from State Route 74 (post mile 22.3) in Lake Elsinore to El Cerrito Road (post mile 38.1) in Corona — an approximately 15.8-mile extension. The Final Finding of No Significant Impact (FONSI) for the project was approved on December 3, 2025.
Deadline to Challenge Project in Court
If you want to file a legal challenge to the Federal agency actions for the I-15 Express Lanes Southern Extension project, your claim must be filed on or before June 29, 2026; if a governing federal statute provides a shorter filing period, that shorter period still applies.
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Key Dates
Department and Agencies
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