Greenroads Pilot Project

183 South Bergstrom Expressway



  • Owner Agency: Central Texas Regional Mobility Authority
  • Other Agencies: Texas DOT, City of Austin, Travis County
  • General Engineering Consultant: Atkins Global
  • Cost: $743 million USD
  • Project Delivery: Design-Build
  • Prime Contractor: Colorado River Constructors (Fluor/Balfour Beatty JV, WSP Parsons Brinckerhoff)
  • Rating System Version: Greenroads v2
  • Status When Rated: 100% Design/Bid Awarded


The 183 South Project is a key connection in the City of Austin between the downtown area and the Austin-Bergstrom International Airport. The Central Texas Regional Mobility Authority will upgrade and widen 8 miles of highway corridor of existing US 183 between US 290 and SH 71 including adding three tolled lanes in each direction and improving the non-tolled general purpose lanes. New bicycle and pedestrian facilities will also be added along the updated corridor.

For more information:


Things we like about this Pilot Project:

  • A Sustainability Management Plan that references Greenroads credits with an original pay-for-performance scheme
  • Focus on reuse opportunities and recycled content
  • Context sensitive approach for improving access and mobility for active transportation
  • Strategic communications plan for public involvement all the way through project delivery
  • Alternative delivery through design-build, which gets the contractor and the designer on the same team from the start

Results of the Pilot Project show normal progress scores for this stage of design, and make both Bronze and Silver Ratings tantatlizingly obtainable.

More about this project at


183 South Groundbreaking

Jeralee Anderson (Greenroads), Mike Heiligenstein (CTRMA Exec Director), Marc Segal, STP (Engineer at Atkins Global)

183 South includes several water crossings and major structures

183 South will expand along the existing alignment and add lanes, frontage road access, and ped/bike facilities

Marc Segal, STP shows off the Pilot Project Sign in front of the historic Montopolis Bridge and Colorado River Wildlife Sanctuary

183 South Aerial Photo at Montopolis Bridge and Colorado River Wildlife Sanctuary

183 South Public Hearing Nov 2014

183 South Context Sensitive Design Presentation panels for public engagement

Senator Kirk Watson speaks at 183 S Groundbreaking Event

CTRMA is the first highway agency in Texas to commit to a Pilot Project for Greenroads and is looking to do more.

183 South Bergstrom Expressway Scorechart

183 South Bergstrom Expressway Raw Score