Traffic Advisory Update 11/13/2026
Due to rain, the planned northbound I-280 Magdalena Avenue off-ramp closure has been canceled. No work on I-280 will take place on Friday, November 13, 2026.
Project Status
Phase 1 of the I-280 Project began at the Page Mill Road — I-280 interchange and moved southbound to St Joseph Ave undercrossing, finishing approximately October 30, 2026.
Phase 2 of the I-280 Project will begin at St Joseph Avenue undercrossing and move northbound to Page Mill Road — I-280 interchange, beginning on November 2, 2026.
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November 16 – 20, 2026: Crews will conduct vegetation management work along Northbound (NB) I-280, starting at the Magdalena Ave interchange. The following treatment areas will be impacted:
- November 16: NB I-280 from Magdalena Ave interchange. Magdalena Ave onramp to NB I-280 will be closed. Detour by taking Southbound (SB) I-280 to Foothill Blvd, then turn around onto NB I-280. Dawnridge Dr may have traffic control.
- November 17: NB I-280 to El Monte Rd offramp will be closed. Detour by continuing north, exit at Page Mill Rd, and then turn around onto SB I-280 to El Monte Rd.
- November 18: NB I-280 from El Monte Rd to just north of the Robleda Road undercrossing. O’Keefe Ln may have traffic control. El Monte Road to NB I-280 onramp will be closed. Detour by taking SB I-280 to Magdalena Ave and then turn around onto NB I-280.
- November 19-20: NB I-280 between Robleda Rd undercrossing and La Barranca Rd undercrossing.
Week of November 23 – 27, 2026: Holiday schedule will limit rolling lane and shoulder closures to accommodate Thanksgiving Day. The following treatment areas will be impacted:
- November 23-24: NB I-280 between La Barranca Rd undercrossing and Elena Rd undercrossing. La Barranca Rd may have traffic control.
- November 25: NB I-280 for a short distance on each side of Elena Rd. No lane closure on I-280. Elena Rd/Deer Creek Ln and Purissima Rd may have traffic control.
- November 26-27: No work in observance of Thanksgiving Day.
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Project Overview
Interstate 280 is a vital arterial roadway connecting San Francisco to the South Bay and Silicon Valley including the cities of Palo Alto, Cupertino and Los Altos. Creating continuous shaded fuel break treatment connecting to the existing network of regional shaded fuels breaks and evacuation routes is an urgent need along the I-280 corridor within the heart of California’s tech industry.
The project takes place along a section of I-280 in Santa Clara County, CA beginning at Caltrans milepost 12.9, at Permanente Creek and ending at milepost 18.8, north of Page Mill Road. To the north of Page Mill Road, the project abuts Stanford University and City of Palo Alto managed lands. At the southern end, the project borders Santa Clara County Parks and the City of Cupertino. Multiple neighborhood streets are parallel to or intersect with I-280, with multiple street underpasses and one overpass.
The project seeks to complete hazardous fuel reduction along both sides of the freeway and the center divide. This represents approximately 152 treatment acres consisting of Caltrans, County Roads and Airports, and Town of Los Altos Hills easements/right of way for a total length of 24 miles when counting northbound, southbound, and both directions of the center divide.
Mitigation of wildfire threat to life and property will be accomplished by removing hazard trees, reducing ladder fuels, dead, dying, and diseased fuels, brush, and exposed trash in the treatment area, and it will help protect life and property adjacent to the highway, as well as the surrounding communities. It will create a healthier and more vigorous ecosystem of the riparian and other natural habitat areas which are adjacent to I-280.
I-280 Communications Team
Eugenia Woods, 650-947-7320
Ed Orre, 650-405-2446
Questions or media inquiries: [email protected]
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I-280, as pictured north of El Monte Road. Image shows heavy hazardous fuels immediately adjacent to the roadway with nearby structures under threat of wildfire.
