South Lamar Boulevard Corridor


Mobility, safety, and connectivity improvements are coming to South Lamar Boulevard between Riverside Drive and U.S. 290As proposed, the City of Austin anticipates investing between $34 and $42 million from the 2016 Mobility Bond on the improvements, which are included in the Corridor Construction Program adopted by Austin City Council. The projects are expected 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.

Preparing for Construction

alt='timeline of Corridor Construction Program from November 2016 through 2024'
The preliminary engineering phase of work began in April 2018 and included the collection of new information from the community, as well as additional surveys and technical analyses to refine the conceptual improvements recommended in Corridor Mobility Plans. 
In April 2019, City Council authorized staff to initiate the full design phase to complete additional design and engineering to prepare projects for construction. The Corridor Program Office is preparing for construction by:
  • Obtaining permits
  • Developing traffic management plans 
  • Coordinating utility relocations 
  • Purchasing right-of-way 
  • Determining construction packaging, phasing and sequencing
  • Designing placemaking areas
  • Completing environmental investigations and documentation 
  • Continuing to explore leveraging/partnership opportunities 
  • Conducting ongoing community engagement with neighborhoods, businesses and property owners to understand their priorities and concerns

Construction Phasing

Construction of improvements for the South Lamar Boulevard corridor will be phased in four segments. Each segment will progress through the project development process (as shown below). While the bulk of construction is anticipated to occur between 2021-24, the Corridor Program Office is evaluating opportunities to get improvements on the ground as soon as possible.

Construction Coming Soon!

Riverside Drive to Barton Springs Road 
Construction is anticipated from Fall 2020 - Spring 2022 on improvements between Riverside Drive and Barton Springs Road. Click on the image to see a preliminary design of the improvements.
Improvements include: 
  • Upgraded traffic signals at Riverside Drive, Toomey Road and Barton Springs Road. 
  • Bus stop improvements. 
  • Pavement restoration. 
  • ADA-compliant sidewalks (at least 7' wide) on both sides. 
  • Two-way raised protected bicycle lane by roadway reconfiguration. 
  • Landscaping and streetscaping enhancements.

Design Underway

Full design of critical mobility and safety improvements for other South Lamar Boulevard corridor segments is underway, and construction is anticipated in 2022. View South Lamar Boulevard flyer - PDF.
Barton Springs Road to US 290
Improvements include: 
  • Intersection improvements with turn lane modifications at Hether Street, Mary Street, Bluebonnet Lane, Menchaca Road. and Oltorf Street.
  • New shared-use paths for cyclists and pedestrians on both sides of South Lamar Boulevard.   
  • 10 upgraded traffic signals.
  • Two new traffic signals at Collier Street/Evergreen Avenue and Del Curto Road.
  • New midblock pedestrian crosswalk signals (Pedestrian Hybrid Beacons) in the vicinity of Post Apartments (between Collier Street and Lamar Square Drive, Oxford Avenue/Kinney Avenue, Dickson Drive, and West Oak Drive.
  • Intermittent median islands at various locations. 
  • Pavement restoration.
  • Drainage improvements 
Construction is anticipated in Spring 2022.
Intersections at Del Curto Road/Bluebonnet Lane and Mary Street/Evergreen Avenue 
Improvements include: 
  • New roundabouts will be added at two intersections just east of South Lamar Blvd. to increase safety and enhance traffic flow and operations.
    • Del Curto Road/Bluebonnet Lane: This improvement will route traffic desiring to head southbound on South Lamar Boulevard to turn left from Del Curto Road. Left turns onto southbound South Lamar will not be permissible from westbound Bluebonnet Ln. 
    • Mary Street/Evergreen Avenue: This improvement will route traffic desiring to head southbound on South Lamar Boulevard to turn left from westbound Evergreen Avenue. Left turns onto southbound South Lamar will not be permissible from westbound Mary Street.
Construction is anticipated in Spring 2022.
UPRR Pedestrian Crossing east of Treadwell Street 
  • Improvements will require coordination with the railroad owner, Union Pacific, which is occurring during final design.
Construction is anticipated in Spring 2022.
Additional fieldwork and surveys will be performed as part of final design, so please be advised that you may observe workers and equipment along and near the corridor collecting data. 

Public Engagement

Corridor improvements are informed by the community’s needs and input. Community engagement played a critical role in developing the Corridor Construction Program and the South Lamar Boulevard Corridor Mobility Plan. Public support for the corridor improvements was expressed through voter-passage of the 2016 Mobility Bond.  
Public feedback remains at the heart of our efforts to make this corridor safer and easier to travel. The Corridor Program Office will continue to engage the public throughout design and construction. We will be sharing the latest plans with the community in early 2020, including public meetings, stakeholder meetings, electronic updates, and more.
We welcome your comments and questions, so please feel free to reach out to us:

Coffee on the Corridor: South Lamar Boulevard
The Corridor Program Office has a Coffee on the Corridor meeting for South Lamar Boulevard at the South Austin Senior Activity Center on March 11, 2020. The community was invited to learn about planned mobility and safey improvements and upcoming construction on South Lamar Boulevard between Riverside Drive and Barton Springs Road.  Additional Coffee on the Corridor meetings will be held as design plans progress on other corridor improvement projects.
Corridor Mobility Plan Development
The City of Austin finalized a Corridor Mobility Plan for South Lamar Boulevard in April 2016. This plan recommended short and long-term improvements for mobility and safety along the corridor. The Corridor Mobility Plan was the basis for development of the Corridor Construction Program.
Engaging with Businesses
The Corridor Program Office walked South Lamar Boulevard in late 2017 to share information about improvement plans with corridor businesses. We also conducted a series of Business Workshops in October 2018, inviting the owners and representatives of businesses located along the nine roadways where Corridor Construction Program improvements are planned to collect input on how the City can help reduce the impacts of construction. This input is being used to develop a Business Success Plan. Additional engagement with South Lamar businesses is planned in early 2020.
Engaging with Property Owners
In fall 2017, the Corridor Program Office sent letters to all corridor-facing property owners along South Lamar Boulevard to share information about improvement plans. In 2019, as part of final design, we have been conducting meetings with potentially impacted property owners to share the latest information and obtain feedback, which will be used to refine improvement designs. These meetings are ongoing, and will occur to coincide with each construction segment’s project development process.
Stakeholder Briefings
The Corridor Program Office has been meeting with various stakeholder groups to discuss improvements and obtain feedback. The Corridor Program Office is happy to schedule additional meetings upon request.  
Public Open House
On Monday, October 1, 2018, we hosted an open house meeting to share information about planned improvements for South Lamar Boulevard and obtain community feedback to refine the design of the improvements. The maps shared at the meeting were conceptual, as preliminary engineering was still underway. Click here to view the official Public Meeting and Community Feedback Report.

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