TxDOT to close northbound I-35 at Walzem Road and Forum Parkway Friday night

TxDOT plans to close northbound I-35 at two separate Northeast Side locations Friday night, adding another round of overnight disruption to the long-running I-35 NEX expansion project.

The closures are set for Walzem Road and Forum Parkway. Both shutdowns are scheduled to run until Saturday morning and will affect drivers heading north on Interstate 35 in the San Antonio area.

What is closing

TxDOT plans to shut northbound I-35 at Walzem Road from 9 p.m. Friday, June 20, until 7 a.m. Saturday, June 21.

A second closure is planned at Forum Parkway from 8 p.m. Friday until 7 a.m. Saturday. The Forum Parkway work is near Loop 1604 and is tied to bridge beam work, according to the reporting.

Detours will be provided at both locations, but the available reporting does not include a full route map.

Why it matters

The closures are part of the I-35 NEX expansion project, a major effort to widen the interstate and reshape traffic patterns on San Antonio’s Northeast Side.

The project is described as a roughly $3 billion buildout that will widen I-35 from eight to 14 lanes and add new elevated structures plus regular and carpool lanes.

For commuters, the immediate impact is likely to be overnight delays and detours for northbound drivers near Walzem Road, Loop 1604 and Forum Parkway.

What to watch

Additional TxDOT advisories could clarify detour routes or add more weekend restrictions on I-35.

Drivers should also watch for any weather-related or construction-related changes that could shift the timing of the closures.

The latest reporting suggests more NEX-related work may follow into the weekend or early next week.