Here’s the Latest on
Oak Hill Parkway


We continue in our mission to engage and listen to you. Your participation in meetings, workshops and Open Houses has made some significant improvements to the concepts being proposed to improve mobility along US 290 and SH 71 through Oak Hill. Some of these improvements include:
  • Developing alternatives that address the traffic congestion in the corridor
  • Reducing the elevation of the interchange at the intersection of US 290 and SH 71
  • Depressing the US 290 mainlanes at the intersection of US 290 and SH 71 and at all crossings further west
  • Extending the improvements past Circle Drive
  • Realigning the westbound US 290 exit to RM 1826 in order to improve access for students and teachers heading to Austin Community College
  • Adding multi-modal shared use path facilities throughout the project
  • Improving access for businesses along SH 71 just north of US 290
  • Potentially reducing flooding with upstream detention
  • Minimizing impacts to Williamson Creek
Your input matters to us. Find out more how your comments and questions have made a real impact on the project design by visiting our public comments page. We welcome your questions and comments about the Oak Hill Parkway. Please feel free to contact us online or request a meeting with your stakeholder group or organization.

The team has been working on putting together artistic renderings of what the intersection of US 290 and SH 71 could look like. The renderings will be among the many items we’ll have available at the next open house this October -- but you can have a sneak peak of them right now on our project website. Visit our new rendering page to check them out!


Since we started the Oak Hill Parkway Environmental Study in 2012, our stakeholder meetings and analysis have clearly told us that congestion is reducing mobility and the quality of life in Oak Hill and surrounding communities. The intersection of two major highways, US 290 and SH 71, in Oak Hill serves as a key route between Central Austin and fast-growing suburban and rural communities such as Lakeway, Bee Cave, Dripping Springs and Johnson City. Drivers are wasting more than 454,000 hours per year stuck in traffic, and there is no reliability for transit or emergency vehicles.

Throughout the process, we’ve presented numerous mobility concepts for evaluation and feedback. We’ve had five Open Houses as well as numerous workshops and stakeholder meetings to ensure that we’ve kept two way communication free flowing between the team and the community. Through this collaborative process with the community as well as our ongoing technical analysis, we narrowed the mobility concepts from ten to two.

We call them Alternative A and Alternative C.  Learn more about these two alternatives by clicking here. The No Build, or “Do Nothing,” Alternative is also being carried forward and serves as a baseline for analysis.

These alternatives will be evaluated in detail resulting in the identification of a selected alternative for recommendation. At the Open House in October, we will ask the community to review and provide comment on the draft evaluation criteria that will be used for this stage in the four year study. 

WANT TO LEARN MORE? Click here to find out more about the environmental study process.
Often times we’re asked, why do we need such a large project? Is it possible to build something smaller to meet the growing congestion problem?

Unfortunately, no. The traffic demand on this corridor is just too high. The project team is designing a project that meets the traffic demand along the corridor today and best manages the traffic projections of tomorrow. We are trying to keep the footprint as small as is responsible, and it’s important to us to design something that requires very limited right-of-way acquisition.

When we launched the study in 2012, the community told us that traffic congestion is a serious problem. In fact, 83% of survey respondents agreed that a goal of any proposed improvement should be to reduce congestion and manage traffic. TxDOT and the Mobility Authority are tasked with providing a real transportation solution that provides meaningful traffic relief.

Other times we’re asked, why do we have to have elevated structures as part of the project?

There are several reasons why we’re proposing elevated structures in Oak Hill. The first is that part of the project lies within a 100-year flood zone. In order to minimize impacts to the floodplain and to provide a reliable transportation corridor during a major flood event, the mainlanes need to be built above the floodplain elevation.

The second reason is that there is a large volume of traffic on US 290. Signalized intersections are not a long-term mobility solution when traffic volumes are as high, so we have to separate the mainlanes from the frontage roads at William Cannon and at SH 71.

We’ve heard from the community that it’s important that we minimize these intersections, and the project team is working hard to design the smallest footprint with the least impact on community values, such as the oak trees, Williamson Creek, businesses and the neighborhoods.

WANT TO LEARN MORE? Click here to read our new information page on the proposed elevated structures.


As the environmental study continues, and we have more information to share, a good source for project facts is our project website at Our Frequently Asked Questions and Environmental Study pages are regularly updated to keep you informed.

Do you have a question that still needs an answer? Ask us directly by contacting us here!


While the Oak Hill Parkway Project is looking at long-term solutions to address traffic congestion and related issues, the Texas Department of Transportation are soon to open the second of two interim intersection improvement projects in the Oak Hill area to ease congestion, improve mobility and enhance safety.

Delays at the intersection of William Cannon and US 290 are due to a water line that was found under the roadway. TxDOT crews are working to resolve the issue. The unexpected water line location coupled with the rainy weather we had this spring has delayed the project slightly. However, we still anticipate construction of the interim improvements to be complete by mid-September 2015.

For more information, click here.

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