The San Francisco Municipal Transportation Agency (SFMTA) releases the following upcoming event-related traffic and transit impacts for the week, from Thursday, Nov. 12 through Wednesday, Nov. 18, 2026.
For real-time updates, follow us on https://x.com/sfmta_muni or visit SFMTA.com/EmailText to sign up for real-time text messages or email alerts. For details of Muni re-routes, visit SFMTA.com/Updates. This website will be updated when it is closer to the event date. For additional notifications and agency updates, subscribe to our blog, Moving SF for daily or weekly updates.
Microsoft Ignite 2026
Thursday, Nov. 12, through Sunday, Nov. 22: A street closure of Howard Street between 3rd and 4th streets will be required for the Microsoft Ignite 2026 event beginning at 6 a.m., Thursday, Nov. 12 and continuing through 6 p.m., Sunday, Nov. 22. There will be additional lane closures around Moscone Center to support the event.
Tuesday, Nov. 17 through Friday, Nov. 20: Microsoft will be holding its Microsoft Ignite event at the Moscone Center. An attendance of 20,000 plus is expected at Moscone Center North, South and West. For more event details, visit https://ignite.microsoft.com.
Traffic congestion is anticipated in and around Moscone Center between 7 a.m. and 7 p.m. daily for the duration of the closure, particularly on streets immediately east of 3rd Street. Additional congestion on 4th Street from Market Street and on Mission Street between 3rd and 4th Streets is anticipated from early morning through the evening between Tuesday, Nov. 17 through Friday, Nov. 20. Travelers are encouraged to take public transportation or use alternate routes. There will be heavy pedestrian traffic in the area.
Thursday, Nov. 12 through Sunday, Nov. 22, Howard Street traffic will be detoured via southbound 2nd Street to Harrison Street, or via New Montgomery Street to Hawthorne Street to Harrison Street.
There will be a signed bicycle detour for people on bikes on Howard Street to turn south at 2nd Street to Folsom Street.
Saturday, Nov. 14 through Friday, Nov. 20, sidewalks on both sides of Howard Street will be closed between 3rd and 4th streets.
Signage will be placed in advance of the street closures and detour routes.
SFMTA Parking Control Officers and San Francisco Police Officers will be deployed at key intersections throughout the closures.
There will be no impact on Muni service.
There will be temporary taxi stands for pick up and drop off only:
- White Zone at W Hotel, north side of Howard Street between 3rd Street and Hawthorne Street
- White Zone at Intercontinental, north side of Howard Street at 5th Street
- Southside of Howard Street (westbound) between 4th and 5th streets
CONSTRUCTION WORK AND OTHER UPDATES
UPDATE: EA 04-0Q120 I-280 Farallones Street Pedestrian Overcrossing and Rehabilitation Project
Caltrans I-280 paving and pedestrian bridge replacement project contractor will be paving segments of the freeway. Caltrans will close two lanes in both the north and southbound direction between US-101 and 20th Street overnight and weekends. During the weekend of Friday, Nov. 13 to Sunday, Nov. 15, Caltrans contractor will pave northbound lanes, at least one lane will remain open. Lane closure hours will be 10 p.m. on Friday to 10 a.m on. Saturday.
For more information about this project and the Fab 4 Rehabilitation Project, visit https://dot.ca.gov/caltrans-near-me/district-4/d4-projects/d4-san-francisco-freeway-and-road-rehabilitation/d4-farallones-avenue-overcrossing.
NEW: BART Bus Bridge between 24th St. Mission and Daly City Stations
Saturday, Nov. 14 and Sunday, Nov. 15: BART crews will be working on tracks between the 24th St. Mission and Daly City stations. The work will help install parts of a new train control system.
There will be NO BART train service between 24th St. Mission and Daly City stations during the weekend. The Green Line will not be in operation.
Below are service details during the construction work:
- Muni buses will provide a free local shuttle service between 24th St. Mission and Daly City with stops at Glen Park and Balboa Park stations.
- SamTrans buses will provide express service between 24th St. Mission and Daly City with no intermediate stops.
Riders are encouraged to plan ahead and allow extra travel time during the construction weekend. For more details visit www.bart.gov/news/articles/2026/news20261015.
UPDATE: Overnight Work Along the T-Third
Sept. to Nov. 2026: Building on the success of the T-Third Fix It! Weekends. The SFMTA is launching a proactive maintenance program to improve conditions and cleanliness along the T-Third corridor between Evans and Sunnydale stations.
Maintenance activities are tentatively scheduled from Sept. through Nov. 2026. To minimize impacts on riders and the surrounding community, work will take place during overnight hours from midnight to 5 a.m. Owl service will not be affected, and access to businesses and residences will be maintained throughout the construction.
Tuesday. Nov. 17 and Wednesday, Nov. 18: Work is scheduled at the Arleta platform.
As part of this effort, SFMTA crews will perform routine maintenance, cleaning, and facility improvements at T-Third platforms on Third Street between Evans and Sunnydale stations. This work supports the agency’s ongoing commitment to keeping Muni facilities clean, safe, and in good condition for riders and the surrounding community.
For more information, visit SFMTA.com/FixItWeek.
UPDATE: Castro Station Accessibility Improvement Project
The SFMTA is excited to announce the Opening of the New Castro Station Elevator!
We are pleased to announce that the new elevator at Castro Muni Station and the Harvey Milk Plaza level is officially open and ready to serve Muni riders, residents, businesses and visitors.
The important milestone marks the completion of the Castro Station Accessibility Improvement Project, providing safer, more convenient, and reliable access to public transportation for everyone, particularly seniors, individuals with disabilities and people with mobility challenges.
To learn more about the Castro Elevator Improvement Project, visit: SFMTA.com/CastroElevator.
UPDATE: Caltrans Project 04-1Q8204 US 101 Hospital Curve Pave and Median Contract
Caltrans contractor will continue working through the end of the year with overnight lane closures to complete profile/smoothness grinding on concrete pavement, drainage installation and Fiber Optic work.
Lane closure hours for the construction work will begin nightly at around 11 p.m. to 6 a.m. the next morning.
For more information about this project and the Fab 4 Rehabilitation Project, visit sfhighwayprojects.com.
UPDATE: Caltrans Project 04-0Q020 US-101 Central Viaduct and I-80 Bayshore Viaduct Contract
Friday, Dec. 4 through Monday, Dec. 7: Caltrans is scheduling a 55-hour closure of Northbound US-101 Central Viaduct between I-80 and Market Street for the weekend. Beginning at 10 p.m., Friday, Dec. 4 and continuing until 6 a.m., Monday, Dec. 7.
In coordination, crews from San Francisco Public Works will pave Octavia Boulevard between Market and Fell streets. The cross streets on Octavia Boulevard will remain open. SFMTA Traffic Routing and Enforcement teams are working to deploy Parking Control Officers, deploy changeable message signs and have devised a traffic control plan for crews with San Francisco Public Works to employ for their work. The greater Caltrans closures will also deploy Traffic Control Plans and have Parking Control Officers’ support to help mitigate and detour traffic.
For more information about this project and the Fab 4 Rehabilitation Project, visit sfhighwayprojects.com.
UPDATE: Caltrans I-80 San Francisco-Oakland Bay Bridge Structural Steel Painting and Spall Repairs Project
Caltrans project is installing a temporary bridge installation platform (Safe Span) on the upper portion of the lower deck of the San Francisco–Oakland Bay Bridge (SFOBB). This work requires overnight staggered lane closures of eastbound I-80 from the San Francisco Anchorage/Rincon Hill to the Yerba Buena Island Tunnel, leaving at least one lane open for the traveling public. All lanes will reopen each morning. Lane closures will occur from 10 p.m. to 7 a.m., Sunday through Thursday, most nights through Nov. 2026. The hours and number of lanes will adjust in response to late-night event traffic.
Listed below are schedules of lane reduction. Hours and number of lanes will be adjusted as needed in response to late-night event traffic:
- Lane 1 will be closed from 10 p.m. to 7 a.m.
- Lanes 1 and 2 will be closed from 11 p.m. to 7 a.m.
- Lanes 1, 2 and 3 will be closed from 12 to 6 a.m.
- Lanes 1, 2, 3 and 4 will be closed from 1 to 5 a.m.
- On Thursday nights Lane 4 will be closed at 2 a.m.
For more information about this project and the Fab 4 Rehabilitation Project, visit https://dot.ca.gov/caltrans-near-me/district-4/d4-news/2026-08-07-i80-sfobb-overnight-lane-closures
ONGOING
ONGOING: Chinatown Construction
San Francisco Public Works is managing three major construction projects taking place in Chinatown. For project updates, sign up for the San Francisco Public Works Construction Update Newsletters.
Drivers, Muni riders and visitors in and around construction zones should allow extra time when visiting the neighborhood.
For additional information on these projects and the related traffic and transit impacts, please visit SFMTA.com/GoChinatown. For more details on Chinatown infrastructure improvement projects, please refer to this Department of Public Works website.
ONGOING: 13th Street Safety Project
Now until 2027: The 13th Street Safety Project is currently under construction to deliver new traffic safety improvements on 13th Street and Duboce Avenue between Folsom and Valencia streets, including protected bike lanes, sidewalk extensions, traffic signal upgrades, accessibility upgrades, sewer upgrades, repaving, and parking/loading changes.
Muni riders should follow posted signage for any temporary bus stop relocations.
Construction is led by San Francisco Public Works in partnership with the SFMTA. For construction updates and to sign up for notifications, visit sfpublicworks.org/13thStreetSafety. For project details and design information, visit SFMTA.com/13thStreetSafety.
ONGOING: Transbay Howard Streetscape Project – Road Construction
Feb. 2026 through 2028: As a part of the Transbay Howard Streetscape Project, new safety upgrades, traffic signal infrastructure, landscaping and a protected two-way bicycle lane are being built on Howard Street between The Embarcadero and 4th Street.
Due to work at multiple sites, expect intermittent delays and lane closures on weekdays from 7 a.m. to 4 p.m. Drivers should exercise caution near construction zones, follow posted detour signage, and consider using alternate routes. During major events and conventions, work will be paused near Moscone Center.
This is a San Francisco Public Works project, with support from the SFMTA. For more information and to sign up for construction updates, visit sfpublicworks.org/TransbayHoward. To learn more about the project design, visit SFMTA.com/TransbayHoward.
ONGOING: SFPUC Geary Boulevard Sewer and Water Replacements
Now until 2027: Replacement work of sewer and water lines is currently taking place along Geary Boulevard between 32nd Avenue and Stanyan Street. Due to construction work at multiple locations, some of the bus stops for Muni routes 38 Geary and 38R Geary Rapid will be temporarily relocated nearby. Riders should look for orange signage at impacted bus stops.