Overnight Maintenance Along the T Third
SFMTA is developing an ongoing maintenance program for the T Third Line to build on the work completed during the Fix It! weekends. The program will establish a regular schedule for inspecting, cleaning, and maintaining platforms, transit shelters, gates, rail infrastructure, and other passenger amenities to help keep the corridor in a state of good repair and address maintenance needs before they become larger issues.
Work is tentatively scheduled from September through October 2026 and will take place from midnight to 5 a.m., to minimize impacts on riders and the surrounding community.
Crews will perform routine maintenance, cleaning, and facility improvements as part of SFMTA’s ongoing efforts to keep Muni facilities clean, safe, and in good condition. Owl service will not be affected, and access to businesses and residences will be maintained throughout the work. Access to businesses, residences, driveways and building entrances will be maintained. Overnight Owl service will not be impacted.
The Sunnydale platform is currently scheduled for maintenance on September 15, 2026.
What to Expect
- What: TThird Maintenance Program
- When: September to October 2026
- Where: T Third Line platforms from Evans to Sunnydale
- Work Hours: Midnight to 5 a.m.
- Work Activities: Shelter and platform maintenance, cleaning, and power washing
- Noise: Periodic construction noise is expected. Overnight noise will be minimal but may include trucks, equipment, and fans. Work at any individual location is expected to last one to two nights and will comply with the San Francisco Noise Ordinance
- Parking: Temporary no-parking zones may be required. Signs will be posted at least 72 hours in advance
- Traffic: Partial lane closures may occur to ensure worker and public safety
- Access: Access to businesses, residences, driveways, and building entrances will be maintained
- Transit: Owl service will not be impacted