On this page:

• Project description
• How this project will help
• Schematics
• Video
• Other sites of interest

Project description

This series of projects will make various upgrades to US Highway 90 West from Old Highway 90 to just west of SH 211. The centerpiece will be the expansion of US 90 from a four-lane divided highway to a six-lane freeway with access roads between Loop 1604 and SH 211 as well as the addition of the westbound US 90 to northbound Loop 1604 flyover. There will also be improvements made to the SH 211 interchange, additional lanes added in each direction between Loops 410 and 1604, and various operational improvements in the corridor between Loop 1604 and Old Highway 90.

EXISTING CROSS-SECTION BETWEEN LOOP 1604 AND SH 211

FUTURE CROSS-SECTION BETWEEN LOOP 1604 AND SH 211

The number of mainlanes shown is the number of through lanes and does not include auxiliary or transitional lanes. The number of access road lanes varies depending on location. Diagrams are for illustrative purposes only and are not to scale.

A later phase of this project will construct the remaining flyovers in the Loop 1604 interchange. A separate project is planned to construct the remaining flyovers at the Loop 410 interchange.

This project is a continuation of recent projects that expanded the section between Loops 410 and 1604 to accommodate the new flyovers at Loop 410 and Loop 1604.

• Interim projects: A few preliminary projects are currently under construction to provide short-term relief:
• Turnaround at SH 211: This project added a westbound-to-eastbound turnaround at SH 211. It was completed in late 2025.
• Auxiliary lanes (Under construction): Construction began in mid 2025 to add one auxiliary lane and turn lanes in each direction between Loop 1604 and Montgomery Rd. to provide some interim relief before the larger Phase 2 project (see below) starts. Work should be complete by mid 2026.

INTERIM AUXILIARY LANES CROSS-SECTION BETWEEN LOOP 1604 AND MONTGOMERY RD

The auxiliary lanes will run the entire length between the entrance/exit ramps for Loop 1604 and Montgomery Rd. Right-turn deceleration/acceleration lanes will be provided in addition to the auxiliary lanes at Spurs Ranch, Grosenbacher, Luckey Ranch, and Alamo Canyon. Diagram is for illustrative purposes only and is not to scale.

• Phase 1 (Under construction): Expansion to ten lanes (i.e. five lanes in each direction) between Loop 410 and Loop 1604, construction of the westbound US 90 to northbound Loop 1604 flyover, realignment of the US 90 frontage roads through the Loop 1604 interchange, expansion of the Hunt Lane overpass to two lanes in each direction, and construction of a roundabout at the Ray Ellison Blvd./Hunt Lane/Crooked Trail intersection. This phase started construction in December 2025 and is expected to be complete in 2029.


• Phase 2: Expansion to six-lane freeway (i.e. three lanes in each direction) with access roads between Loop 1604 and SH 211. This phase is currently expected to start in late 2027.


• Phase 3: Reconstruction, ramp revisions, and operational improvements between Loop 410 and Old Highway 90. It is currently anticipated that this phase could start in 2032.


• Phase 4: Construction of the remaining flyovers at Loop 1604. This phase is currently penciled-in for 2034.

A longer-term project to extend the freeway from SH 211 all the way to Castroville is currently in early planning.

As always, the dates listed above are tentative and subject to change.

How this project will help

Several new large subdivisions have been constructed along US 90 west of Loop 1604 in the past decade with several more planned or underway. As a result, traffic volumes along that stretch of Highway 90 have increased more than 70% over the past decade. Additionally, growth in the Potranco Rd. corridor just to the north is also contributing to traffic on Highway 90. Upgrading this segment to a freeway will allow it to more efficiently and safely handle current and expected traffic.

Widening the freeway between Loop 410 and 1604 is needed to allow it to accommodate the influx of traffic both from the west as well as from Loop 1604, where growth is now occurring south of US 90, and to accommodate the new westbound US 90 to northbound Loop 1604 flyover.

Completing the Loop 1604 interchange will accommodate current and future traffic there resulting from the new growth south of US 90.

The operational improvements east of Loop 410 will adjust the ramps there to accommodate the future flyovers for the Loop 410 interchange and make other general improvements and updates to the original and now obsolete roadway.

Schematics

Below are the detailed preliminary schematics from TxDOT for Phases 1 and 2 and for the ultimate build-out of this project with my own annotations added to help clarify and explain the various elements. Click on an image below to open the schematic in a new window that you can scroll and zoom.

PHASES 1 & 2

ULTIMATE

Click an image above for a full-sized schematic of this project

Video

TxDOT has a flyover video rendering of the ultimate project:

Other sites of interest

TxDOT - US 90 from SH 211 to I‑410 https://www.txdot.gov/inside-txdot/get-involved/about/hearings-meetings/san-antonio/101520.html