San Antonio drivers on the Northwest Side are encountering extensive traffic disruptions as the Texas Department of Transportation (TxDOT) pushes forward with the Loop 1604 North Expansion Project. The work, which targets the I‑10 and Loop 1604 interchange, includes permanent lane restrictions, closed on‑ramps and alternating U‑turn shutdowns that affect both mainlanes and frontage roads.

Key closures and restrictions

Eastbound I‑10 frontage road: The left lane remains permanently restricted from La Cantera Parkway to the Loop 1604 interchange.

Eastbound Loop 1604 entrance ramp: The on‑ramp directly after the I‑10 interchange is permanently closed to traffic.

Overnight restrictions (heaviest impact):

• I‑10 mainlanes and frontage (eastbound and westbound) are limited between Camp Bullis Road and De Zavala Road, with only one lane kept open at all times.
• Loop 1604 mainlanes and frontage (eastbound and westbound) are fully closed at the I‑10 interchange.
• Loop 1604 frontage road is closed in both directions between the I‑10 interchange and Vance Jackson Road.
• Eastbound I‑10 frontage road is closed between Via La Cantera and UTSA Boulevard.
• La Cantera Parkway experiences full ramp and intersection closures, with alternating U‑turn shutdowns.

Construction schedule and mitigation

TxDOT crews are working primarily during daytime hours to limit rush‑hour gridlock while preserving essential traffic flow. One lane on I‑10 mainlanes and frontage (both eastbound and westbound) remains open between Camp Bullis Road and De Zavala Road. Loop 1604 frontage road stays closed at the I‑10 interchange in both directions, and alternating U‑turn closures on La Cantera Parkway ensure that only one U‑turn is shut down at any given time.

Shutdowns on Loop 1604 frontage road (eastbound and westbound) will continue at the I‑10 interchange through Monday morning, Oct. 5.

Advice for motorists

Local authorities strongly encourage drivers to monitor real‑time traffic updates, obey posted detours and safety signage, and exercise extreme caution near active construction zones. Planning alternate routes, allowing extra travel time during morning and evening peaks, and staying informed via TxDOT’s traffic alerts can help mitigate delays.

Residents and commuters who rely on The Shops at La Cantera, the University of Texas at San Antonio (UTSA) campus, or the Rim Shopping Center should especially anticipate longer travel times and consider using side streets where feasible.

Community impact

The Loop 1604 North Expansion Project is part of a broader effort to improve regional mobility and accommodate future growth in the San Antonio metropolitan area. While short‑term inconvenience is unavoidable, the long‑term goal is to provide a more reliable transportation corridor for families, businesses and faith‑based organizations that call the Northwest Side home.

Original reporting: KTSA News/Talk (San Antonio) — read the source article.