Overview
The proposed project includes reconstructing the I-35 and Williams Drive interchange, adding operational improvements from North Austin Avenue to Rivery Boulevard, and extending the northbound frontage road from Williams Drive to the Lakeway Drive exit ramp.
Need & Purpose
- Improve safety and mobility
Project Description
- Reconstruct the Williams Drive interchange to a diverging diamond interchange (DDI)
- Construct north and southbound intersection bypass lanes under Williams Drive bridge
- Extend the northbound I-35 frontage road from Williams Drive to the Lakeway Drive exit ramp
- Improve the existing southbound I-35 frontage road
- Improve the Austin Avenue intersection at Williams Drive
- Improve bicycle and pedestrian paths along the I-35 frontage roads
Funding
- Project development funded by TxDOT
- Construction funded by Capital Area Metropolitan Planning Organization and TxDOT
- Construction cost: $61.7 million
Schedule
- Finalized schematic and environmental documentation: early 2019
- Begin Plans, Specifications and Estimates (PS&E): mid-2017
- Complete PS&E: May 2020
- Construction letting: July 2020
- Construction start: October 2020
- •Anticipated construction completion: late 2023
