TxDOT Opened New Ramp at I-35 and I-410 Interchange
San Antonio logistics operators should plan for traffic shifts as highway capacity expansion moves into its next phase.
Updated on Oct. 5, 2026 in Construction
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The Texas Department of Transportation has opened a new ramp connecting southbound I-35 lanes to I-410 South. This infrastructure update is part of the broader $3.5 billion I-35 Northeast Expansion project, which spans 20 miles to manage daily traffic exceeding 230,000 vehicles.
Why it matters
The project aims to improve regional traffic flow and safety by building elevated lanes that separate through-traffic from local road users. These structural changes are critical for businesses relying on consistent transit times along the corridor from N. Walters Street to Schertz.
The $3.5 billion I-35 Northeast Expansion project covers 20 miles and services a highway carrying over 230,000 vehicles per day. Four phases of construction are currently active, with total project completion scheduled for 2032.
The players
TxDOT
The Texas Department of Transportation is the state agency responsible for the planning, design, and construction of public roadway infrastructure.
The details
The expansion utilizes elevated lanes to carry high-volume through-traffic above existing surface-level lanes. This design limits entry and exit points for the elevated section, effectively separating long-distance commuters from local traffic. By diverting through-traffic upward, TxDOT intends to reduce congestion at key interchanges like the newly opened ramp at I-410.
Timeline
Construction began from FM 3009 to I-410 North in 2022.
Work on the I-410 North to I-410 South segment commenced in 2024.
Construction of the I-410 South to FM 78 segment started in 2025.
The I-410 North to South phase is projected for completion in 2028.
The total I-35 NEX project is scheduled to reach completion in 2032.
Market Landscape
The I-35 Northeast Expansion project represents a strategic shift toward vertical highway expansion to solve throughput issues in high-growth corridors. This development follows a pattern set by previous urban highway redesigns intended to segregate regional through-traffic from local commerce.
Operators in the San Antonio area should monitor for temporary lane closures and ramp shifts as construction continues through 2032. Evaluate supply chain transit times along the I-35 corridor to account for ongoing, long-term road work phases.
The takeaway
The ongoing expansion of the I-35 corridor signals a decade-long shift in transit patterns for businesses operating in San Antonio. Track the progress of the four active construction phases to proactively adjust logistics and delivery routes before new closures occur.
Further reading
For more on local development trends, visit Construction.
Source note: This article includes information reported by MySA.
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