Drivers on Interstate 35 on San Antonio’s Northeast Side should plan for overnight lane reductions and a weekend ramp closure next week as work continues on the I-35 Northeast Expansion Program, according to the Texas Department of Transportation.
TxDOT said northbound I-35 will be reduced to one lane between Frost Bank Center Drive and Winnco Drive nightly from 9 p.m. to 5 a.m. Monday, July 20 through Sunday, July 26, 2026.
Southbound I-35 will also be reduced to one lane nightly from 9 p.m. to 5 a.m. Monday, July 20 through Sunday, July 26, 2026, between Petroleum Drive and Frost Bank Center Drive.
In addition, TxDOT said southbound I-35 will be reduced to one lane continuously between Petroleum Drive and George Beach Avenue from 9 p.m. Friday, July 24, through 5 a.m. Sunday, July 26, 2026.
TxDOT said motorists should expect delays on the I-35 main lanes and plan for additional travel time.
The agency also said the northbound I-35 exit ramp to southbound I-410 will be closed continuously from 9 p.m. Friday, July 24, through 5 a.m. Sunday, July 26, 2026.
For drivers needing to access southbound I-410 during the closure, TxDOT said to follow posted detour signs by continuing on northbound I-35 and using the next exit at Rittiman Road to access the northbound I-35 frontage road, then making a U-turn near the northbound I-35 entrance ramp to access southbound I-410.
All closures are subject to change, weather permitting, TxDOT said.