Downtown San Antonio is currently experiencing significant traffic disruptions due to ongoing construction on Interstate 35 and Interstate 10. This latest phase of work is expected to continue through November, impacting daily commutes for thousands of drivers.
The construction primarily targets the northbound upper levels of I-35, specifically between I-10 near Martin Street and McCullough Avenue. Drivers should prepare for substantial delays and consider alternative routes during this period.
Key Takeaways
- I-35 northbound upper levels affected by closures.
- Work includes bridge joint repairs.
- Delays expected from Woodlawn Lake into downtown.
- Construction to last through November 2025.
- Additional work planned through spring 2026.
Major Closures Impact Commuters
The current phase of construction involves two main lane closures on the northbound upper levels of I-35. These closures are critical for the ongoing infrastructure improvements but have immediate effects on traffic flow.
Work began on Tuesday morning, October 28, 2025, and instantly led to major delays. Commuters traveling from areas like Woodlawn Lake into downtown San Antonio faced significant slowdowns. Drivers approaching from the South Side on I-35 North also experienced extended travel times.
"Drivers are advised to avoid the area since the train is expected to be stuck in its position for hours."
Current Advisories
- There are 23 advisories in effect for 23 regions in the wider area, highlighting broader regional transportation challenges.
- Recent incidents, such as a fatal train strike north of downtown, further complicate local traffic conditions.
Bridge Joint Repairs Underway
The primary focus of this construction phase is bridge joint repairs. These repairs are essential for maintaining the structural integrity and safety of the highway system. Bridge joints allow for expansion and contraction due to temperature changes, preventing damage to the road surface.
The current repair work is slated to continue through November 2025. However, this is not the end of the overall project. Additional construction activities in this same area are planned to extend through spring 2026, indicating a long-term commitment to infrastructure upgrades.
Broader Traffic Concerns
Beyond the I-35 construction, San Antonio faces other traffic-related issues. A 21-year-old, Gabriel Rosas, was recently sentenced to 20 years in prison for intoxication manslaughter, highlighting the dangers of impaired driving on local roads. Such incidents can also contribute to unexpected traffic disruptions.
Furthermore, weather conditions can impact travel. Thursday is expected to be the coldest morning, with a light freeze possible in the Hill Country. While not directly related to construction, adverse weather can exacerbate traffic problems on already congested routes.
Anticipating Future Delays
As the construction progresses, drivers should anticipate continued and potentially worsening delays. The upper levels of I-35 are a critical artery for downtown traffic, and any closures here have a ripple effect across the city's road network.
Planning ahead for commutes is crucial. Utilizing real-time traffic updates from local news sources or navigation apps can help drivers choose the least congested paths. Commuters might also consider adjusting their travel times to avoid peak hours.
This long-term project underscores the city's efforts to modernize its infrastructure. While inconvenient in the short term, these repairs aim to ensure safer and more efficient travel for years to come.
Staying Informed on Road Conditions
For the most up-to-date information on road conditions across the state, drivers can consult official transportation websites. Local news outlets also provide continuous updates on traffic delays and alternative routes within San Antonio.
Residents are encouraged to sign up for traffic alerts or follow relevant social media channels for immediate notifications regarding changes to road closures or unexpected incidents. Staying informed is the best strategy for navigating these significant construction periods.
- Check traffic apps before leaving.
- Consider public transportation or carpooling.
- Allow extra travel time for your journey.
- Stay updated with local news advisories.





