The Texas Department of Transportation (TxDOT) announced that construction on the $500 million U.S. Highway 90 West Expansion Project on the west side of San Antonio is set to begin in late 2025, according to heresantonio.com.
The initiative aims to expand U.S. Highway 90 to six lanes and enhance connectivity for the region's growing traffic, especially between Loop 410 and State Highway 211 in west Bexar County.
While construction will begin in late 2025, the exact starting date is to be determined, according to heresanantonio.com.
The project's first phase, which is fully funded at approximately $161 million, is expected to last approximately four years. It will focus on widening U.S. 90 and improving the access roads. That includes constructing flyover ramps linking U.S. 90 and Loop 1604.
Heresanantonio.com reported that traffic volumes on the section of U.S. 90 have grown by more than 70 percent in the last decade, with projections estimating that the daily vehicle count will increase to 150,000 vehicles per day over the next 20 years.
Much of that increase is due to the town of Castroville, which is west of San Antonio on U.S. 90, growing rapidly. Foresitecre.com reported that the area's total market population of 132,678 is expected to increase to 154,605 by 2028.
The project is expected to reduce future travel times by as much as 90 percent, according to heresanantonio.com.
A second phase of the project will focus on extending U.S. 90 from Loop 1604 to State Highway 211, increasing the number of lanes from four to six.
Phase two is projected to start in 2028, with completion anticipated in 2032. The estimated cost is approximately $339 million, although it is only partially funded now. Electronic toll collection systems are under consideration for future operations across the newly expanded roadways.
The timelines for future phases remain unclear, according to heresanantonio.com.
Aside from traffic improvements, the project is designed to enhance the overall regional infrastructure. The construction of flyover ramps is slated for completion sometime around 2034, although that timetable is subject to changes in funding and scheduling.
As with all major projects, dates and financial estimates are subject to revision, depending on various factors, including construction conditions and funding allocations, according to heresanantonio.com.
Mysantonio.com reported that TxDOT began drafting the project in 2016.









