Northbound I-35 to Close Overnight October 27 in San Antonio
Logistics operators should plan for detours while TxDOT installs bridge beams for the I-35 NEX expansion project.
Updated on Oct. 26, 2026 in Construction
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TxDOT will close northbound lanes of Interstate 35 at the Loop 1604 crossing overnight on October 27, 2026. This disruption is part of the $3 billion I-35 NEX expansion project that will widen the highway from eight to 14 lanes.
Why it matters
The I-35 NEX expansion is a critical piece of infrastructure aimed at increasing capacity on the city's Northeast Side. Local businesses should anticipate significant traffic delays during the overnight installation of bridge beams.
The $3 billion I-35 NEX expansion project aims to increase the capacity of the interstate from eight to 14 lanes. The current overnight closure marks a key phase of the construction effort that is scheduled for completion in 2030.
The players
TxDOT
The state agency responsible for planning, building, and maintaining the Texas highway system and managing interstate infrastructure projects.
The details
Contractors are closing the northbound lanes to facilitate the installation of bridge beams for the elevated structures. These new structures are designed to add two regular lanes and one carpool lane in each direction upon completion of the full expansion project.
Timeline
October 27, 2026: I-35 northbound lanes closed from 9 p.m. to 5 a.m.
2030: Project completion expected.
Market Landscape
This activity is part of the ongoing I-35 NEX expansion project that aims to address long-term congestion on the city's Northeast Side. The work follows the pattern of large-scale infrastructure overhauls that temporarily shift traffic flow for local logistics and delivery operations.
Operators relying on northbound I-35 for night deliveries should plan for delays or route adjustments between 9 p.m. and 5 a.m. on October 27. Businesses should monitor traffic reports and project updates as the $3 billion project continues over the next four years.
The takeaway
Large-scale infrastructure projects require constant monitoring of local traffic updates to maintain reliable delivery schedules. Operators should track the I-35 NEX progress through 2030 to mitigate recurring logistical disruptions.
What happens next
TxDOT will continue the expansion project through 2030, with future lane closures likely as construction on the elevated structures progresses.
Further reading
For broader context on current city infrastructure work, visit San Antonio Construction.
Source note: This article includes information reported by San Antonio Express-News.
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In your area, do major highway expansion projects successfully reduce long-term traffic congestion?
