I-35 Southbound Elevated Lanes Reach Major Milestone

The final beam is installed for the highway project, keeping the nine-mile stretch on track for completion by early 2027.

Updated on Oct. 15, 2026 in Home Renovation

I-35 Southbound Elevated Lanes Reach Major Milestone

Live Poll

Do you feel the long-term benefits of major local highway expansions justify the years of construction?

Construction crews have finished installing the final beam for the southbound elevated lanes along the I-35 Central Project in San Antonio. This milestone marks significant progress on a 9.5-mile highway expansion segment that is scheduled for completion in early 2027.

Why it matters

The $1.5 billion project aims to manage growing traffic congestion along this major corridor, directly impacting daily commutes and regional logistics for local families. This expansion is part of a larger $3.5 billion effort spanning 20 miles of highway in the area.

The Central Project represents a $1.5 billion investment for 9.5 miles of the 20-mile, $3.5 billion I-35 overhaul. This phase, which began four years ago, remains on track for completion in early 2027.

The players

TxDOT

The Texas Department of Transportation is the state agency responsible for managing highway infrastructure and traffic planning.

The details

Crews are building high-capacity, elevated highway lanes to alleviate chronic congestion. The work involves a complex structural assembly of beams designed to support increased traffic volume between Loop 410 and the Cibolo area. This installation near O'Connor Road is a critical step in the ongoing four-phase infrastructure plan.

2022: Construction began on the Central Project.
October 2026: Final beam installed for southbound elevated lanes.
Early 2027: Expected completion of the Central Project.

The Home Front

This highway expansion marks a major shift in San Antonio's infrastructure strategy to address long-term population and traffic growth. The project aligns with regional efforts to modernize transit corridors connecting major Texas cities.

Local residents should continue to account for ongoing construction traffic and potential lane shifts in the O'Connor Road area during the final project phases. Plan your commute accordingly and stay updated on official transit notices as the early 2027 completion date approaches.

The takeaway

The installation of the final beam brings this massive infrastructure investment significantly closer to its scheduled finish. Residents can track further updates through local transit announcements as the project moves toward its 2027 conclusion.