Environmental Study

Oak Hill Parkway

In compliance with the National Environmental Policy Act (NEPA), TxDOT is currently conducting an environmental study for US 290 from State Loop 1 (SL1) to Ranch-to-Market Road (RM) 1826, in Travis County, Texas, a distance of approximately 3.6-miles. The study will also look at improvements to SH 71 from Silvermine Drive to US 290 in Travis County, a distance of approximately 1.2-miles. In addition, and as a result of public comment, the project includes a transition area along US 290 from FM 1826 to west of Circle Drive. The study began in October 2012 and will consider a full range of reasonable alternatives for improving mobility in the corridor.

PROJECT PURPOSE, Or, What are we trying to do?

  • Improve mobility and operational efficiency

  • Promote long-term congestion management

  • Increase multimodal travel options for people and goods

  • Improve safety

  • Improve emergency response

PROJECT NEED, Or, What are we trying to solve?

  • Traffic congestion related to population growth – Travis Co. has grown from 212,000 in 1960 to just over 1 million in 2010
  • Crashes on US 290/ SH 71 West – 868 crashes occurred on US 290/SH 71 between 2010-2014, resulting in five fatalities, 20 incapacitating injuries, plus other injuries and property damage
  • Lost time – Drivers wasted more than 454,000 hours per year stuck in traffic on US 290/SH 71 in 2014 (Texas Transportation Institute, 2015)
  • Lack of reliable connectivity
  • Unreliable route for transit and emergency vehicles

Proposed Alternatives

Mobility improvement concepts for the Oak Hill Parkway have been refined and narrowed using public input, the purpose and need for the project, and detailed traffic analysis. The refined concepts, now called "alternatives", are advancing through schematic development and detailed environmental analysis.

Build Alternative A

  • Controlled-access highway with frontage roads
  • US 290 mainlanes go under SH 71 with direct connections at the intersection of US 290 and SH 71
  • Westbound US 290 mainlanes would be north of Williamson Creek over the frontage roads

Build Alternative C

  • Controlled-access highway with frontage roads
  • US 290 mainlanes go over SH 71 with direct connections at the intersection of US 290 and SH 71
  • Both west and eastbound US 290 mainlanes would be north of Williamson Creek and the frontage roads would be along the existing highway

No Build (Do Nothing) Alternative

  • Proposed improvements would not be constructed; assumes all other projects in the CAMPO Plan would be constructed. It also includes the interim intersection improvements currently being constructed by the City of Austin and TxDOT.

Learn more about the alternatives by checking out our schematics page.

Draft Public and Agency Coordination Plan

The environmental review, consultation, and other actions required by applicable Federal environmental laws for this project are being, or have been, carried-out by TxDOT pursuant to 23 U.S.C. 327 and a Memorandum of Understanding dated December 16, 2014, and executed by FHWA and TxDOT.

Contact Us

P.O. Drawer 15426
Austin, TX 78761-5426