TxDOT and Mobility Authority Officially Open $677 Million Oak Hill Parkway in Southwest Austin

AUSTIN, Texas — The Texas Department of Transportation (TxDOT) and the Central Texas Regional Mobility Authority formally celebrated the official opening of the $677 million Oak Hill Parkway infrastructure project on September 25, 2026. The transformative highway initiative reconstructed seven miles of U.S. Highway 290 and State Highway 71 through the Oak Hill community in southwest Austin, eliminating one of Central Texas's most notorious traffic bottlenecks and significantly enhancing regional travel safety.

Constructed under a joint venture by Fluor Corporation and Balfour Beatty, the project features non-tolled main travel lanes, grade-separated overpasses at heavily congested junctions including William Cannon Drive and Convict Hill Road, and modernized flyover ramps. The revitalized corridor accommodates more than 100,000 vehicles each day, serving as the essential arterial conduit linking the Austin metropolitan core to the expanding communities of the Texas Hill Country.

Beyond vehicular throughput, the project integrates more than 14 miles of dedicated shared-use paths, continuous sidewalks, and bicycle trails connecting neighborhood transit nodes to regional greenways along Williamson Creek. State transportation engineers noted that custom-designed stormwater filtration basins and environmental retention ponds were integrated throughout the highway right-of-way to protect local aquifer recharge zones while safeguarding motorists during heavy Hill Country rainstorms.