San Antonio, October 25, 2025
News Summary
Parts of Interstate 35 in San Antonio will be closed on Friday night from 8 p.m. to approximately 6 a.m. on Saturday due to a Texas Department of Transportation expansion project. The closures will affect both northbound and southbound lanes between Alamo Parkway and Pasatiempo. Drivers are advised to use Exit 174A and the northbound or southbound frontage roads to avoid the closures. Emergency management officials are prepared for possible storm conditions over the weekend, and local businesses are coordinating to limit disruptions.
San Antonio
Parts of Interstate 35 in San Antonio will be shut down Friday night.
Closure overview: The lane closures are part of a Texas Department of Transportation expansion project. The closures will affect both northbound and southbound lanes of I-35 between Alamo Parkway and Pasatiempo. Closure times are scheduled to begin at 8 p.m. on Friday and will last until approximately 6 a.m. on Saturday.
Where to drive instead
Drivers on the northbound lanes can avoid closures by using Exit 174A, getting on the northbound frontage road, and then using the next available entrance ramp. Southbound travelers are advised to take Exit 174A in Selma, stay on the southbound frontage road, and re-enter at the next available entrance ramp. Both closures are dependent on favorable weather conditions.
Emergency readiness and storm monitoring
This project is part of I-35’s Northeast Expansion Program. Local businesses and emergency management officials are preparing for possible storms anticipated over the weekend. The Texas Division of Emergency Management (TDEM) is monitoring the situation and readying resources for potential assistance. TDEM’s Media and Communications Chief emphasizes the need for public awareness concerning road conditions and emergency plans. TDEM has helicopters, swift water rescue teams, and other resources on standby for Friday night.
Recent weather context
Recent heavy rainfall in the area led to flash flooding incidents, prompting increased caution and readiness. Because the planned lane closures are weather-dependent, officials have warned that the schedule could change if conditions deteriorate.
Concurrent downtown street emergency
An emergency street closure is also announced due to a structural issue with scaffolding at a construction site downtown. The San Antonio Fire Department stabilized an affected building’s scaffolding, which buckled but did not collapse. Officials await the scaffolding contractor’s stabilization plan, expected to take 12 to 15 hours. No injuries have been reported related to the scaffolding issue.
What drivers and residents should expect
Travelers should expect lane closures and follow the posted detours and entrance/exit routing around Exit 174A. Motorists are advised to allow extra travel time, watch for workers and cones in the closure area, and be prepared for changes if weather forces postponement. Local businesses and emergency responders are coordinating to limit disruption and maintain public safety during the work window and any weather-related response.
Sources and responsibilities
The lane closures result from activities connected to the I-35 Northeast Expansion Program managed by the Texas Department of Transportation. Emergency response readiness and resource staging are being coordinated through the Texas Division of Emergency Management and local response agencies including the San Antonio Fire Department. The scaffolding stabilization work will be guided by the contractor’s forthcoming plan.
FAQ
What parts of Interstate 35 will be shut down?
Parts of Interstate 35 in San Antonio will be shut down Friday night.
Why are lanes closing on I-35?
The lane closures are part of a Texas Department of Transportation expansion project.
Which lanes and between which points are affected?
The closures will affect both northbound and southbound lanes of I-35 between Alamo Parkway and Pasatiempo.
When will the closures start and end?
Closure times are scheduled to begin at 8 p.m. on Friday and will last until approximately 6 a.m. on Saturday.
How can northbound drivers avoid the closures?
Drivers on the northbound lanes can avoid closures by using Exit 174A, getting on the northbound frontage road, and then using the next available entrance ramp.
How can southbound drivers avoid the closures?
Southbound travelers are advised to take Exit 174A in Selma, stay on the southbound frontage road, and re-enter at the next available entrance ramp.
Are the closures guaranteed to happen regardless of weather?
Both closures are dependent on favorable weather conditions.
What program is this project part of?
This project is part of I-35’s Northeast Expansion Program.
What are local officials preparing for?
Local businesses and emergency management officials are preparing for possible storms anticipated over the weekend.
Is the state emergency agency involved?
The Texas Division of Emergency Management (TDEM) is monitoring the situation and readying resources for potential assistance.
What has TDEM said about public awareness?
TDEM’s Media and Communications Chief emphasizes the need for public awareness concerning road conditions and emergency plans.
What resources has TDEM put on standby?
TDEM has helicopters, swift water rescue teams, and other resources on standby for Friday night.
Has recent weather affected planning?
Recent heavy rainfall in the area led to flash flooding incidents, prompting increased caution and readiness.
Is there a separate emergency street closure downtown?
An emergency street closure is also announced due to a structural issue with scaffolding at a construction site downtown.
What happened to the downtown scaffolding?
The San Antonio Fire Department stabilized an affected building’s scaffolding, which buckled but did not collapse.
What is the timeframe for scaffolding repairs?
Officials await the scaffolding contractor’s stabilization plan, expected to take 12 to 15 hours.
Were there any injuries from the scaffolding issue?
No injuries have been reported related to the scaffolding issue.
Key details at a glance
| Feature | Detail |
|---|---|
| Location | I-35 between Alamo Parkway and Pasatiempo, San Antonio |
| Timing | 8 p.m. Friday to approximately 6 a.m. Saturday |
| Affected lanes | Both northbound and southbound |
| Detour routing | Exit 174A and frontage roads (northbound and southbound) |
| Project | I-35’s Northeast Expansion Program |
| Emergency readiness | TDEM resources on standby; local agencies coordinating |
| Concurrent incident | Emergency street closure downtown due to scaffolding issue |
Timeline
| Date/Time | Event | Status / Source |
|---|---|---|
| Friday, 8:00 p.m. (planned) | Lane closures on I-35 begin | Scheduled; Texas Department of Transportation |
| Saturday, ~6:00 a.m. (planned) | Lane closures expected to end | Approximate end time; Texas Department of Transportation |
| Friday night | TDEM resources on standby (helicopters, swift water rescue teams, other resources) | Texas Division of Emergency Management |
| Ongoing | Downtown emergency street closure for scaffolding stabilization | San Antonio Fire Department; contractor plan expected in 12 to 15 hours |
Simple visual statistics
Planned closure duration
Planned closure: 10 hours (8 p.m. Friday to approximately 6 a.m. Saturday). Bar shows 10 of 24 hours (~41.7%).
Resources staged for Friday night
- Helicopters — on standby
- Swift water rescue teams — on standby
- Other resources — on standby
Deeper Dive: News & Info About This Topic
HERE Resources
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Fatal Rollover Accident Claims Life in San Antonio
San Antonio Faces Severe Thunderstorms and Flash Flooding
New Braunfels to Launch $1.4 Billion Infrastructure Project
Severe Weather Alerts Issued for Central and South-Central Texas
San Antonio Faces Severe Storms and Flooding Risks
Additional Resources
- Fox San Antonio
- Wikipedia: Weather
- KENS 5 San Antonio
- Google Search: San Antonio storms
- KSAT News
- Google Scholar: Interstate 35 Expansion
- News 4 San Antonio
- Encyclopedia Britannica: Construction
- News 4 San Antonio
- Google News: San Antonio business closure
Author: STAFF HERE SAN ANTONIO WRITER
The SAN ANTONIO STAFF WRITER represents the experienced team at HERESanAntonio.com, your go-to source for actionable local news and information in San Antonio, Bexar County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as Fiesta San Antonio, San Antonio Stock Show & Rodeo, and Dia de los Muertos. Our coverage extends to key organizations like the Greater San Antonio Chamber of Commerce and United Way of San Antonio and Bexar County, plus leading businesses in retail, insurance, and energy that power the local economy such as H-E-B, USAA, and Valero Energy. As part of the broader HERE network, including HEREAustinTX.com, HERECollegeStation.com, HEREDallas.com, and HEREHouston.com, we provide comprehensive, credible insights into Texas's dynamic landscape.
