The Texas Department of Transportation (TxDOT) will begin nightly closures of Interstate 35 in a major Central Texas city this week. These closures are part of TxDOT’s ongoing construction of the I-35 expansion project in downtown Austin.

State Highway 71/Ben White Boulevard to southbound I-35 flyovers will be closed nightly from Monday, October 26 through Thursday, October 29, from 9 p.m. to 6 a.m., for bridge column work. In addition, starting Monday, the right lane will be closed on southbound I-35 frontage road between 49th Street and 46th Street through early 2028. 

Drivers on eastbound SH 71 can use the South Congress Avenue exit and turn onto the frontage road to access the I-35 mainlanes. Drivers on westbound SH 71 will use the Burleson Road/Woodward Street exit and turn onto the frontage road to access the I-35 mainlanes, according to TxDOT. 

From Tuesday, Oct. 27 to Wednesday, Oct. 28, northbound I-35 mainlanes between Slaughter Lane and William Cannon Drive will be closed nightly from midnight to 5 a.m., for work on elevated managed lanes. Drivers traveling on northbound I-35 can use the William Cannon Drive exit (228), continue on the northbound I-35 frontage road and use the next available entrance ramp for I-35.

On Thursday, Oct. 29, northbound and southbound I-35 mainlanes and frontage roads, between Lady Bird Lake and Holly Street will have rolling closures from 11 p.m. to 4 a.m., for utility line crossing. These closures are expected to last no more than 15 minutes at a time, per TxDOT.

There will also be varying nightly lane closures with mainlanes reduced to one lane in some areas of northbound and southbound I-35 between SH 71/ Ben White Boulevard and SH 45 Southeast from 8 p.m. to 5 a.m. between Sunday, Oct. 25 and Thursday, Oct. 29. Multiple entrance and exit ramps will be closed. 

In addition, nightly alternating lane closures will continue on the William Cannon Drive bridge at I-35 from Monday, Oct. 26 through Thursday from 9 p.m. to 6 a.m., for work on elevated managed lanes. 

I-35 construction closures and real time traffic alerts are now available through CTXGO’s website and mobile app.