{"id":445076,"date":"2026-08-27T12:16:22","date_gmt":"2026-08-27T12:16:22","guid":{"rendered":"https:\/\/www.newsbeep.com\/us-ca\/445076\/"},"modified":"2026-08-27T12:16:22","modified_gmt":"2026-08-27T12:16:22","slug":"highway-101-through-sf-is-closing-over-2-weekends-including-the-labor-day-holiday","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us-ca\/445076\/","title":{"rendered":"Highway 101 Through SF Is Closing Over 2 Weekends \u2014 Including the Labor Day Holiday"},"content":{"rendered":"

Here\u2019s what to know about the upcoming 101 closures in September, the recommended detours and which travelers will be most affected.<\/p>\n

\"\"<\/p>\n

Highway 101 and Interstate 280 in San Francisco, California, on Feb. 25, 2026. Over a mile of Highway 101 through San Francisco near Zuckerberg San Francisco General Hospital will be closed to all northbound traffic during the holiday weekend of Sept. 4-7. It’ll be closed again Sept. 18-21.\u00a0(Smith Collection\/Gado via Getty Images)<\/p>\n

Get ready, Bay Area drivers. On the heels of April\u2019s major Interstate 80 closure <\/a>through San Francisco and last weekend\u2019s highway shutdown over the Carquinez Bridge<\/a>, you\u2019re now getting another major highway closure over two upcoming weekends \u2014 including the Labor Day holiday.<\/p>\n

Over a mile of Highway 101 through San Francisco near Zuckerberg San Francisco General Hospital will be fully closed to all northbound traffic <\/a>during the holiday weekend of Sept. 4-7. Then, a few weeks later, it\u2019ll be closed again across another full weekend: Sept. 18-21.<\/p>\n

These closures on what\u2019s known as the \u201cHospital Curve\u201d part of 101 will affect not only drivers trying to drive from the South Bay and Peninsula to the East Bay or North Bay \u2014 including people arriving at San Francisco International Airport \u2014 but also anyone wanting to travel through the city on those weekends.<\/p>\n

\"\"The Zuckerberg San Francisco General Hospital and Trauma Center is located at 1001 Potrero Avenue in San Francisco on Aug. 22, 2026.\u00a0(T\u00e2m V\u0169 for KQED)<\/p>\n

The two weekend closures are part of Caltrans\u2019s ongoing work on what the agency calls \u201cthe Fab 4\u201d: 101\u2019s Hospital Curve, I-280, the Central Freeway<\/a> and 19th Avenue.\u00a0<\/p>\n

With the upcoming 101 work, \u201call of those lanes are going to be completely closed to traffic so that major pavement work can happen,\u201d said Lori Shepherd, Caltrans\u2019 Bay Area public information officer. \u201cBasically, they\u2019re putting on a brand new repaving [on] the whole entire road.\u201d<\/p>\n

Jump straight to:<\/p>\n

\nWarning: Delays and detours ahead\n<\/p>\n

Shepherd said that drivers should know that \u201cthis is going to be a major, major impact,\u201d and that any travelers planning to drive in San Francisco during those weekends should expect sizable delays getting through the city \u2014 not just around 101, but on surrounding streets and detours.<\/p>\n

Caltrans is already urging travelers wherever possible to take public <\/a>transportation <\/a>to travel through San Francisco those weekends, instead of using the roads.<\/p>\n

It \u201creally remains the best option to bypass congestion and work zone delays \u2014 because there will be some major delays getting through the city,\u201d warned Shepherd. Delays from the closures could also have a knock-on effect on other routes through the city.<\/p>\n

But if you really have to drive through San Francisco over the Labor Day weekend \u2014 perhaps returning home from your own holiday plans \u2014 or the following closure, what should you know about timings, detours and delays?<\/p>\n

Keep reading for what we know about navigating the upcoming 101 closure without having your weekend completely hijacked by traffic.<\/p>\n

(And a heads up that the southbound lanes of this same stretch of 101 will be closing for two weekends in October, too, on Oct. 2-4 and Oct. 16-18. Shepherd told KQED that I-80 westbound between Fifth and 10th streets will also experience closures during the weekend of Oct. 23-25. We\u2019ll publish more details about these future closures closer to the time.)<\/p>\n

\nWhere will northbound 101 through San Francisco be closed?\n<\/p>\n

All northbound lanes on 101 between Cesar Chavez Street and 10th Street will be closed to traffic \u2014 a 1.2-mile stretch of highway.<\/p>\n

Any drivers on northbound 101 approaching this closure will be forced to take the Cesar Chavez Street\/Potrero Avenue off-ramp before the closed area.<\/p>\n

All southbound lanes on 101 will remain open during the closures of the northbound lanes.<\/p>\n

\nWhen will the northbound 101 closures in San Francisco take place?\n<\/p>\n

This stretch of northbound 101 will be closed over two separate weekends:<\/p>\n

\nSept. 4-7 (Labor Day holiday weekend)\n<\/p>\n

Closure starts: 11 p.m. on Friday, Sept. 4<\/p>\n

Closure ends: by 6 a.m. on Monday, Sept. 7<\/p>\n

\nSept. 18-21\n<\/p>\n

Closure starts: 11 p.m. on Friday, Sept. 18<\/p>\n

Closure ends: by 6 a.m. on Monday, Sept. 21<\/p>\n

\nI need to drive north through San Francisco during the closures. What detour should I take?\n<\/p>\n

\nIf you\u2019re already on 101 north through San Francisco\n<\/p>\n

Caltrans recommends that motorists use I-280 northbound <\/a>to reach downtown areas of the city or the San Francisco-Oakland Bay Bridge.<\/p>\n

You can merge onto I-280 by staying in the right two lanes of 101 around Silver Avenue.\u00a0<\/p>\n

\"\"Caltrans\u2019 suggested detour for drivers on northbound Highway 101 through San Francisco during the two September weekend closures.\u00a0(Courtesy of Caltrans)<\/p>\n

If you don\u2019t take the I-280 exit and continue on 101 northbound toward the closure, you\u2019ll be forced to take the last exit before the closed area: the Cesar Chavez Street\/Potrero Avenue off-ramp.<\/p>\n

From here, you can take Potrero Avenue north and either connect back onto northbound 101 to the Golden Gate Bridge or to Bryant Street, where you can take the Ninth Street\/Bryant on-ramp to I-80 over the Bay Bridge.<\/p>\n

\nIf you want to drive north through the city from SFO, the Peninsula or South Bay\n<\/p>\n

Caltrans\u2019 detour map suggests drivers on 101 by SFO merge onto I-380 westbound, and then transfer to northbound 280 into San Francisco.\u00a0<\/p>\n

\"\"Caltrans\u2019 suggested detour for drivers heading northbound from SFO during the two September weekend closures.\u00a0(Courtesy of Caltrans)<\/p>\n

\nWhy can\u2019t these 101 closures take place overnight instead?\n<\/p>\n

Shepherd attributed the length of the multiple closures to the sheer scope of the \u201c24-7\u201d repaving work being undertaken on 101 at this time.\u00a0<\/p>\n

\u201cIt\u2019s a major, massive project, if you can imagine, repaving the freeway,\u201d she said, and despite the holiday weekend, Caltrans has timed these closures \u201cto do it with the least amount of impact on the public,\u201d said Shepherd.<\/p>\n

The concrete used in this kind of repaving work also needs the kind of dry conditions that September brings. \u201cThere\u2019s a lot of emphasis on getting work done \u2014 as much of it completed in the summer during the dry season as much as possible,\u201d she said.<\/p>\n

\u201cIt\u2019s difficult, yes, for the traveling public to have to find ways around,\u201d Shepherd said. \u201cBut in the end, it will produce long-term gains, because the road will be safer and smoother to drive [and] less prone to flooding.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"Here\u2019s what to know about the upcoming 101 closures in September, the recommended detours and which travelers will…\n","protected":false},"author":2,"featured_media":445077,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[101,103,102,104,106,105],"class_list":["post-445076","post","type-post","status-publish","format-standard","has-post-thumbnail","category-san-francisco","tag-san-francisco","tag-san-francisco-headlines","tag-san-francisco-news","tag-sf","tag-sf-headlines","tag-sf-news"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts\/445076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/comments?post=445076"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts\/445076\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/media\/445077"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/media?parent=445076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/categories?post=445076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/tags?post=445076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}