Reconstructed flyover, new bypass lane to open at I-35 and US 183

Staff Reports

AUSTIN – Less than four months after the Texas Department of Transportation imploded two sections of the old northbound I-35 to northbound US 183 flyover, the reconstructed flyover will open to traffic. Before opening the new flyover, TxDOT will temporarily close the northbound I-35 main lanes for restriping. At the same time the new flyover opens, so will a new northbound bypass lane.

US 290 East entrance ramp to the Rundberg Lane exit (#241) in Travis County. Photo credited to TXDoT

Beginning Friday, Sept. 10 at 11 p.m., the northbound I-35 main lanes will be closed to traffic, weather permitting. Traffic will detour to the frontage road at the US 183 South exit (#239), travel through the signalized intersections at St. Johns Avenue and US 183 and reenter the main lanes near Rundberg Lane. All lanes and the new flyover will open by 8 a.m. on Saturday.

TxDOT reconstructed the flyover to lessen the incline and allow room for a new entrance ramp. The new bypass lane will allow traffic on the northbound frontage road to bypass the signal at St. Johns Avenue, and either enter I-35 or stay on the frontage road to the US 183 intersection. These improvements will increase safety, mobility and traffic flow for all users.

This $124.2 million Texas Clear Lanes project began construction in 2018 and is anticipated to be complete in early 2022. For more information on this project and others under construction, visit

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