I-5 (Avenida Pico to San Juan Creek Road)

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  • Avenida Pico to San Juan Creek Road

    Project Contacts 1 of 2

    Closures and Detours


    Closures and Detours

    Stay Informed

Overview Tab Content:

  • Overview

    This 5.7-mile project extends from Avenida Pico in San Clemente to San Juan Creek Road in San Juan Capistrano. The four-year, $230 million project will:

    • Add a carpool lane in both directions on I-5 from Avenida Pico to San Juan Creek Road;
    • Improve the sight distance on the southbound curve north of PCH;
    • Reconstruct the interchange at Avenida Pico, including widening the northbound Avenida Pico on-ramp to three lanes, and providing dual left-turn lanes to both on-ramps; and
    • Add sound walls where needed.

    Project Update

Details Tab Content:

  • Avenida Pico Interchange Improvements

    Purchase on Pico

    We are committed to assisting local businesses during the reconstruction of the I-5 / Avenida Pico Interchange in San Clemente. Businesses are invited to participate in our “Purchase on Pico” Program, free of charge.


    This $230 million project is funded in part by Measure M2, Orange County's half-cent sales transportation tax. In addition, OCTA is funding the work with a combination of Measure M2 local sales tax and state and federal funding.


    The project is being constructed in three segments: Avenida Pico to Avenida Vista Hermosa; Avenida Vista Hermosa to Pacific Coast Highway; and Pacific Coast Highway to San Juan Creek Road.

    Flatiron Construction began work on the first segment, focused on the Avenida Pico Interchange, in February 2015. Work on the second segment, also being done by Flatiron, started in September 2014 and includes construction of retaining walls and sound walls, as well as on- and off-ramp improvements. Shimmick Construction has the third segment, centered primarily on the PCH / I-5 interchange, where work began in February 2014.


Detours Tab Content:

  • Weekend Closures at Avenida Pico, Oct. 13-16

    Avenida Pico Ramp Closures: The southbound I-5 on- and off-ramps at Avenida Pico are scheduled to close from 10 p.m. Friday, Oct. 13, to 5 a.m. Monday, Oct. 16.*  

    Avenida Pico under I-5 also will be closed nightly during this time, however, at least one lane in each direction will remain open during the day.


    The extended closure will allow crews to complete reconstruction of the southbound I-5 on- and off-ramps and apply final striping. When the closure is completed, Avenida Pico under the bridge will be reopened to a temporary new configuration. All ramps at Avenida Pico are scheduled to be in their final configurations by the end of October.

    Motorists should use Calle Frontera and Avenida Vista Hermosa as detours during the weekend closure.

    * The southbound I-5 off-ramp will close at 10 p.m. on Friday, Oct. 13. However, Avenida Pico and the southbound I-5 on-ramp will remain open until 11 p.m. to accommodate traffic leaving the Friday night football game at San Clemente High School.

    Pedestrian Detour and Assistance at Pico: The sidewalk on Avenida Pico in front of the post office - from Via Pico Plaza to the southbound I-5 on-ramp - is closed. Pedestrians must cross Pico and use the sidewalk in front of the Denny's and the Chevron gas station until the work is done. To assist pedestrians, flaggers are being stationed at the crosswalks along the detour route from 7 a.m. to 3:30 p.m. Monday through Friday. In the coming weeks, crews will switch sides, and pedestrians will be shifted onto the new sidewalk now under construction in front of the post office. Expect sidewalk work and pedestrian detours over the next several months.

    PEDESTRIANS: Follow detour signs; pay attention to flaggers; watch for motorists.

    MOTORISTS: Drive slowly through the area; stop at crosswalks on red lights; look for pedestrians and bicyclists.

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I-5 Improvements Keep Me Informed

Sign up today to receive text message alerts from the I-5 South County Improvements Project. Text SOUTHOC5INFO to 67076 to begin receiving weekly text message alerts with important closure and detour information.

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