South Lamar Corridor Improvements

The City of Austin is investing approximately $36 million from the 2016 Mobility Bond on improvements to South Lamar Boulevard between Riverside Drive and US 290. The City expects this to reduce vehicular delay, improve the effectiveness of transit, create continuous ADA-compliant sidewalks and continuous bicycle facilities along the entire length of the corridor. More up-to-date information might be found on the City's webpage for the South Lamar Corridor project but we do not find the City's website to be very helpful. The following are the City's South Lamar Corridor team contacts:

Jessica Engelhardt, Corridor Liaison, jessica.engelhardt@austintexas.gov, 512-974-7751
Fernando Cantero, Project Manager, fernando.cantero@austintexas.gov, 512-974-7240

Phase 1 Construction - Riverside Drive to Barton Springs Road

Permitting has been completed. Construction is anticipated in 2022.

• Phase 1 Site Plan Permitting and Issued Final Site Plan (internal ZNA link)
• Preliminary Design (Mar 2020) (3.2 MB JPG)

Phase 2 Construction - Barton Springs Road to US 290

Permitting is currently underway. If environmental clearance is received, construction is anticipated to occur in 2023 and 2024. The September 2019 preliminary plan below differs somewhat from the 27 September 2018 preliminary plans.

• Phase 2 Site Plan Permitting (internal ZNA link)
• City Information Sheet [2022-02-07] (21.1 MB PDF)

2020 Public Hearings (July 15-30, 2020)

A virtual public hearing was held from July 15 to July 30, 2020

• Hearing Comments and Responses (91.2 MB PDF)
• Hearing Presentation with Transcript (1.4 MB PDF)
• Hearing Presentation (YouTube Video)

Preliminary Plans (September, 2019)

• Preliminary Design - Full Document (Sep 2019) (5 pages; 24.1 MB PDF)

Click on one of the images below to open a detailed map of that portion of South Lamar Blvd from the full document above.

Ben White Blvd to Halfway Between Panther Trail and Westrock Dr (includes Brodie Oaks and Panther Trail signals)

Halfway Between Panther Trail and Westrock Dr to Just North of Dickson St (includes Barton Skyway and Menchacha signals)

Just North of Dickson St to Just North of West Oltorf (includes Bluebonnet, Del Curton, and West Oltorf signals)

Just North of West Oltorf St to Just North of Lamar Square Dr (includes Hether/West Mary, Collier/Evergreen, and Lamar Square signals)

Just North of Lamar Square Dr to Riverside Dr (includes Treadwell, Barton Springs, Toomey, and Riverside signals)

Preliminary Plans (September 27, 2018)

Preliminary plans for September 27, 2018 include the following key elements:

• Signaled Intersection Changes
  • Eliminate dedicated right turn lane on NB South Lamar Blvd at Riverside Drive
  • Add dual left turn lanes to SB South Lamar Blvd at Barton Springs Rd
  • Eliminate left turn lane (i.e., no left turn) from WB West Mary St to South Lamar Blvd and divert to Evergreen Ave
  • Elimination of separate angled right turn to West Mary St from NB South Lamar Blvd
  • Eliminate left turn lane (i.e., no left turn) from NB Bluebonnet Ln to South Lamar Blvd and divert to Del Curto Rd
• New Signals
  • Collier St/Evergreen Ave (current left turns onto South Lamar Blvd from WB West Mary will be diverted to here)
  • Del Curto Rd (current left turns onto from NB Bluebonnet to SB(WB) Lamar will be diverted to here)
• New Pedestrian Hybrid Beacons
  • Between Lamar Square Dr and Collier St at the Post Apartments
  • At Dickson Rd
• Other Notable Changes
  • Eliminate third lane (current right lane) on NB South Lamar between Barton Springs Rd and Riverside Dr
  • Eliminate third lane (current right lane) on SB South Lamar between Riverside Dr and Butler Rd
  • Add two-way protected bike lanes on both sides of South Lamar between Barton Springs Rd and Riverside Dr
  • At-grade bicycle and pedestrian crossing under railroad track at Treadwell St
  • New roundabout at Evergreen Ave and West Mary St
  • New roundabout at Bluebonnet Ln and Del Cruto Rd
  • Replacement of certain stretches of middle "chicken" left turn lane with raised median
  • Add queue jumps and new dedicated bus priority lanes through certain intersections

Preliminary Plan (27 Sep 2018) Click on the image below to open a detailed map of improvements (32 MB PDF, may load slowly).

Intersection Details (27 Sep 2018) Click on one of the images above to see a detail of the intersection.

South Lamar Corridor Study Final Report (04 Apr 2016)

• Final Report (4.4 MB PDF)
• Appendix A - Public Involvement Plan (0.4 MB PDF)
• Appendix B - Drainage (2.7 MB PDF)
• Appendix C - Travel Demand (0.6 MB PDF)
• Appendix D - Traffic Analysis (0.3 MB PDF)
• Appendix E - Health Assessment Impact Study (3.2 MB PDF)
• Appendix F - Relevant Plans and Policies (12.6 MB PDF)
• Appendix G - Walk Audit and Workshop Workbook (7.4 MB PDF)
• Appendix H - Cost Estimates (0.5 MB PDF)
• Appendix I - Recommendations (11.8 MB PDF)

Older South Lamar Corridor Study Documents

• Project Status [21 Feb 2018] (PDF)
• Draft Recommendation Maps [07 Aug 2015] (13.1 MB PDF)
• Public Input Summary Report [10 Dec 2014] (1.0 MB PDF)
• City-produced Fact Sheet (0.2 MB PDF)