San Antonio

New Flyover Ramp to Boost Traffic Flow at San Antonio's Loop 1604 and I-10 Interchange Set for June Opening

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Published on May 30, 2025
New Flyover Ramp to Boost Traffic Flow at San Antonio's Loop 1604 and I-10 Interchange Set for June OpeningSource: X/TxDOT San Antonio

The Texas Department of Transportation (TxDOT) has announced the upcoming opening of a new flyover ramp at the Loop 1604 interchange with Interstate Highway 10 in San Antonio. Set to open on Monday at 5 a.m., according to KTSA, this will be the second flyover ramp to operate at this interchange, with the first having debuted in December. A third ramp is expected to follow later within the year. TxDOT has emphasized that the new connection is designed to link westbound I-10 to westbound Loop 1604, a maneuver that has the potential to significantly ease the traffic flow in this busy area.

As part of the larger $1.4 billion Loop 1604 North Expansion project, which seeks to improve mobility across a 23-mile stretch, TxDOT is investing in expansive changes to the existing infrastructure. Texas Public Radio reports that $463 million has already been spent to transform the Loop 1604 & I-10 interchange into a five-level design. The need to swiftly complete the preparations has prompted TxDOT to announce weekend closures starting at 9 p.m. today through 5 a.m. Monday, as detailed in the provided list of traffic disruptions.

The Loop 1604 Expansion Project aims to effectively reduce traffic congestion, a goal that is all too familiar to San Antonio residents navigating the expanse between State Highway 16 on the Northwest Side and IH-35 on the Northeast Side. The first segment of the project is reportedly in the final months of completion, with the entire endeavor slated for finality by 2027. As part of the process, Segment 2 of the expansion began construction in late summer 2022.

Motorists should be aware of the weekend road closures affecting the 1604 and I-10 intersections. For clarity, during the nights from 9 p.m. to 5 a.m., closures include eastbound mainlanes of Loop 1604 at I-10, and for the westbound mainlanes, the stretch from Lockhill Selma Rd. to Babcock Rd, among others. During the day, from 5 a.m. to 9 p.m., there will be closures on the westbound two right mainlanes from I-10 to Kyle Seale Parkway and on the westbound two right mainlanes and bypass lane at I-10, as reported by Texas Public Radio.