Irvine Issues November 4-11 Roadway and Traffic Advisories: MacArthur Boulevard Closes Under SR-55 Tonight, Night Work on SR-133 and SR-241
IRVINE, Calif. - The City of Irvine's Public Works & Sustainability Department, in Orange County, California, on November 4 issued its roadway improvements and traffic advisories for November 4-11, 2026, summarizing road work, closures and lane controls across the city and advising residents to allow extra travel time and consider alternate routes.
On freeways and arterials, Orange County Transportation Authority (OCTA) crews are performing asphalt work on MacArthur Boulevard beneath State Route 55, closing MacArthur in both directions under the freeway from 9 p.m. Wednesday, November 4 to 5 a.m. Thursday, November 5, as part of the SR-55 Improvement Project. Southbound SR-133 between the I-5 Freeway and Great Park Boulevard is closed through November 5 from 10 p.m. to 5 a.m. nightly, and the Portola Parkway on-ramp to southbound SR-241 closes November 5 and 6 from 9 p.m. to 5 a.m. OCTA's I-5 Improvement Project with Caltrans, from the I-405 Freeway to SR-55, also continues, with changing traffic patterns and possible lane and ramp closures.
City projects include underground infrastructure work beneath Portola Parkway starting Wednesday, November 18, weekdays 8 a.m. to 4 p.m. with temporary lane closures from 9 a.m. to 3 p.m.; street rehabilitation and slurry seal in the Quail Hill neighborhood, under way since November 2 on weekdays from 8 a.m. to 5 p.m.; Orchard Hills Drive rehabilitation through November 30, weekdays 9 a.m. to 3 p.m.; and the Jamboree Road and Main Street intersection widening, continuing through winter on weekdays from 9 a.m. to 3 p.m. The city said all work is weather permitting and delays should be expected near work zones.
The city also invited input on the Yale Avenue Enhancement Project at a community pop-up workshop on Sunday, November 8, from 10 a.m. to 1 p.m. at the Hicks Canyon Trail crossing at Yale Avenue, where options including protected bikeways, pedestrian crossings and protected intersections along Yale Avenue north of the I-405 Freeway, including the Yale Loop, will be evaluated. Project questions can be emailed to [email protected] or phoned to the project hotline at 949-724-6676.
(Source: City of Irvine)
Source: City of Irvine
Published by GSM · USA (original Chinese edition)
Photo: 图：Irvine 市政厅。Azusa Tarn 摄，CC BY-SA 4.0，经 Wikimedia Commons。 / Photo: Irvine City Hall. By Azusa Tarn, CC BY-SA 4.0, via Wikimedia Commons.
