I-35 Southbound Closure This Weekend | San Antonio News

Southbound I-35 in San Antonio is turning into a nightmare this weekend—starting Friday, Sept. 18 at 9 PM, the main lanes from Judson to OConnor will shrink to one lane until noon Saturday due to bridge cap concrete work. Drivers near Live Oak and Windcrest brace for major delays; TxDOT urges taking Weidner Road as an exit. This is part of the massive I-35 Northeast Expansion project, aiming to widen 20 miles across three counties, with Phase 1 (Central) set to finish by late 2027 and South Phase 1 by late 2028. Plan ahead—patience is key if you’re hitting that stretch.

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