South Central Austin Edition | December 2025

Transportation

BY HALEY MCLEOD

I-35 Cesar Chavez Street entrance ramp will also remain closed through early 2026, and drivers on the northbound frontage road will instead use the entrance ramp between Eighth and 11th streets. In addition, the east side Levander Loop pedestrian trail—from just north of the Montopolis Bridge to just south of E. Cesar Chavez Street—will be closed through 2028. The southbound I-35 frontage road at River Street will be closed through mid-2028, with drivers detouring to East Avenue and River Street to reach the southbound frontage road. Eastbound and westbound River Street will also be reduced to one lane in each direction at I-35. • Timeline: 2025-2029 • Cost: $4.5 billion • Funding sources: TxDOT and the Capital Area Metropolitan Planning Organization 3 Zilker Park multimodal access improvements Project: This project will improve the safety and mobility of pedestrians, cyclists and transit riders in the Zilker Park area. Update: Construction on the final phase of improvements is expected to wrap up by spring. • Timeline: 2021-2026 • Cost: $3.4 million • Funding sources: 2016, 2020 Mobility Bonds and Council District 8 Quarter Cent funding

Upcoming projects

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1 South Lamar Boulevard mobility program Project: The city of Austin is adding mobility, safety and connectivity improvements along South Lamar Boulevard between Riverside Drive and Hwy. 290. Update: Construction along roughly three miles of South Lamar Boulevard from Barton Springs Road to Hwy. 290 will see mobility improvements. • Timeline: Construction to begin early 2026. • Cost: $60.5 million • Funding source: 2016 Mobility Bonds

W. KOENIG LN.

MOPAC

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W. 12TH ST.

Ongoing projects 183

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MOPAC

2 I-35 Capital Express Central project Project: The Texas Department of Transportation’s multibillion-dollar I-35 overhaul, which broke ground last October, will add two nontolled high-occupancy lanes along the roughly 8-mile stretch from Hwy. 290 to Hwy. 71. The project also includes removing upper decks, sinking sections of the roadway about 25 feet and widening the corridor to 17-22 lanes. Update: Entrance and exit ramps, along with several frontage roads, remain closed. The northbound I-35 frontage road between 11th and 12th streets has its right lane closed through early 2026. The northbound

BARTON SPRINGS RD.

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OPAC

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