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The Texas Department of Transportation has begun digging a 22-foot-wide tunnel near Airport Boulevard in Central Austin to mitigate future flooding. (Courtesy TxDOT)

TxDOT spends $748M to burrow bus-size tunnels under Central Austin

By Haley McLeod

The Texas Department of Transportation is set to launch one of Austin’s largest underground construction projects in 2026—digging 6.5 miles of 22-foot-wide tunnels beneath the city’s busiest highway.

More City & County News

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An image of a marker at the site.
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Hays County has used Flock Safety automatic license plate readers since 2022. (Courtesy Flock Safety)
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Pictured is Kyle City Hall.
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Pictured is the Hays County courthouse
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Pictured is San Marcos High School
Learn about recent government news highlights in San Marcos, Buda and Kyle
Drone shot of Hwy 290
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Pictured is Buda City Hall
City of Buda shares long-term vision and goals
ERCOT and PUCT officials in January 2025.
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Pictured is a sign that says city of San Marcos.
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Pictured is Kyle City Hall.
Kyle property taxes to increase $305 for average homeowner
Pictured is the Hays County Historic Courthouse
Hays County property tax bills could rise over $200