Two-Day Lane Closures on South Alamo Street as Downtown San Antonio Prepares for Marathon

an active road resurfacing project on a downtown street, featuring heavy yellow construction equipment laying dark fresh asphalt, orange traffic cones blocking

AI-generated illustration; not a photograph of the reported event.

  • calendar_today November 11, 2026

South Alamo Street Roadwork Begins in Downtown San Antonio

Motorists in downtown San Antonio should prepare for significant lane closures as crews undertake road resurfacing work on South Alamo Street. The project, aimed at preparing for next month’s San Antonio Marathon, will cause traffic detours over a two-day period.

Details of the Lane Closures and Detour Schedule

The lane closures will occur between East Commerce and West Market streets, near the Torch of Friendship, from 8 a.m. to 5 p.m. on both November 11 and 12. Originally scheduled to wrap up by November 10, the roadwork was postponed to Wednesday and Thursday due to inclement weather earlier in the week.

Purpose: Road Resurfacing for Marathon Runners

This stretch of South Alamo Street is being resurfaced to accommodate the anticipated increase in foot and vehicle traffic during the San Antonio Marathon events. The resurfacing is part of the city’s preparations to ensure the course is safe and accessible for participants.

Traffic Management and Safety Measures

Throughout the closure hours, officers will be stationed in the area to help facilitate detours and manage the flow of traffic. Commuters and downtown visitors are advised to allow extra travel time and follow posted detour signs during the specified hours.

Project Contact and Additional Information

Anyone with questions about the ongoing street repairs or detours can contact the city’s project representative, Arthur Aguilar, at 210-207-7891. The city encourages residents and visitors to stay updated on possible changes and further announcements regarding local road construction.

Upcoming San Antonio Marathon Details

The resurfaced section will be used for the San Antonio Marathon events scheduled from December 4 to December 6. The race route incorporates much of the downtown and near Northside areas. Further announcements and details about the marathon can be found on the official event website.

Conclusion

These short-term lane closures and traffic detours are part of the ongoing preparations to host a safe and successful San Antonio Marathon. Motorists are urged to stay informed about the latest roadwork and to plan routes accordingly during the daytime closures on November 11 and 12.

Related coverage

Source: mysanantonio.com.

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