The I-5 Improvement Project from the County Line to Avenida Pico Interchange proposes to reduce traffic congestion and improve inter-county connectivity between Orange County and San Diego County. The Orange County Transportation Authority (OCTA), in cooperation with the California Department of Transportation (Caltrans) District 12 and the City of San Clemente, are proposing improvements to 4.8 miles of Interstate 5 (I-5) in the City of San Clemente from south of the San Diego County line to Avenida Pico (Project). The map below provides a high-level snapshot of the entire project area, with the proposed improvement area highlighted in yellow.

The Project is in the environmental review phase, during which the Project Report and Environmental Document will be developed. One No Build Alternative and two Build Alternatives will be studied. The proposed Build Alternative roadway and capacity improvements include:
- Alternative 2: Add one HOV lane in each direction along I-5
- Alternative 3: Implement Transportation System Management (TSM) and Transportation Demand Management (TDM)
The I-5 freeway, a major freeway corridor, serves as a:
- Inter-regional and interstate travel and goods movement route.
- Connection between Orange County with San Diego County to the south and to Los Angeles County to the north.
- Main route to beaches and tourist attractions in the City of San Clemente, San Onofre State Beach, and United States Marine Corps Base Camp Pendleton
To view the project presentation delivered to the City of San Clemente City Council, click here, beginning on April 20, 2022.
To contact project staff, please call the number and/or email provided at the top of this page.