AI-generated illustration; not a photograph of the reported event.
- calendar_today October 19, 2026
TxDOT Overnight Closure Extended on I-35 in Austin
The Texas Department of Transportation (TxDOT) has announced an extension of the nightly closure affecting drivers in Austin, Texas. The State Highway 45 Southeast (SH 45 SE) flyover to northbound Interstate 35 (I-35) will remain closed for an additional two nights, as part of ongoing txdot construction on the I-35 Capital Express South project.
Details of the Nightly Closure
Originally, TxDOT planned for the SH 45 SE flyover to northbound I-35 to be closed until Sunday, October 18, 2026. However, a recent update from the agency states the closure will continue through Monday, October 19, and Tuesday, October 20. The overnight closure will take place from 8 p.m. to 5 a.m. each night.
Traffic Detour and Alternate Routes
During the closure, drivers traveling on State Highway 45 who need to access northbound I-35 are advised to follow the traffic detour provided by TxDOT. Instead of using the closed flyover, motorists should take the I-35 access road south and turn around at Cabela’s Drive. From there, they can enter northbound I-35 at the Cabela’s Drive entrance.
Background on the Capital Express South Project
The closure is part of the larger Capital Express South road expansion effort, which aims to improve mobility along I-35 in Austin, Texas. The project began two years ago, with work focused on the corridor between State Highway 71/Ben White Boulevard and SH 45 Southeast. When completed, the project will add two high-occupancy vehicle (HOV) managed lanes in each direction, a new southbound I-35 bypass lane, newly constructed entrance and exit ramps, and enhanced pedestrian and bicycle paths.
Expected Timeline and Impact
Construction on the I-35 Capital Express South project is expected to continue over the next decade, with completion anticipated by late 2028, depending on weather conditions. TxDOT continues to provide construction updates and encourages overnight drivers to observe all detour signs and posted instructions for their safety and convenience.
Additional Resources
For real-time updates on the i35 closure and other txdot construction projects in Austin, Texas, travelers are advised to check official TxDOT channels and posted traffic maps.
Source: mysanantonio.com.
