South Lamar Boulevard Corridor

Mobility, safety, and connectivity improvements are coming to South Lamar Boulevard between Riverside Drive and U.S. 290. As 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.
Preliminary engineering is complete and the full design phase of work began in April 2019 when City Council authorized staff to finalize designs and prepare the projects for construction.

Construction Phasing

Construction of improvements for the South Lamar Boulevard corridor will be phased in segments. The bulk of construction is anticipated to occur between 2021-24, and the Corridor Program Office (CPO) is evaluating opportunities to get improvements on the ground as soon as possible. View South Lamar Boulevard flyer- PDF.

Coming Soon!

Riverside Drive to Barton Springs Road 
Construction is anticipated 2021 -late 2022 on improvements between Riverside Drive and Barton Springs Road. Click on the image to see a preliminary design of the improvements, which include: 
  • Upgraded traffic signals at Riverside Drive, Toomey Road and Barton Springs Road
  • Bus stop improvements
  • Pavement restoration
  • Removal of continuous right-turn lanes
  • ADA-compliant sidewalks and two-way raised protected bicycle lanes on both sides of the roadway
  • Access management improvements such as raised medians and driveway modifications
  • Enhanced landscaping with a variety of plant and tree species
  • Street lighting
  • Streetscape improvements such as benches, bike racks, scooter parking and waste receptacles
CPO hosted virtual Business Information Sessions to share information about improvements that will be constructed between Riverside Drive and Barton Springs Road . Click here to view the presentation.  
The City of Austin’s top priority is the health and safety of our crews and the public. The COVID-19 pandemic is being monitored daily and may impact construction schedules. For COVID-19 updates and resources, please visit

Design Underway

Full design of critical mobility and safety improvements for other South Lamar Boulevard corridor segments is underway, with construction anticipated in 2022.
Click here to view a preliminary map of the funded improvement plans for South Lamar Boulevard from Barton Springs Road to US 290. This schematic map is not final. As a result of current design phase activities, improvement plans shown may have been refined since the map's last update.
Barton Springs Road to US 290
Improvements include: 
  • 13 existing traffic signals would be enhanced with upgraded technology 
  • Two new traffic signals at Del Curto Road and Evergreen Avenue 
  • Two new pedestrian hybrid beacons (mid-block signalized cross-walks) located at West Oak Drive and near the Post Apartments
  • Upgrades to the existing pedestrian hybrid beacons at Oxford Avenue and Dickson Drive
  • Intersection improvements at Barton Skyway, Menchaca Road, Bluebonnet Lane, Oltorf Street, and Evergreen Avenue; will include improved crossing conditions and connectivity for pedestrians and cyclists, including enhanced and separated facilities 
  • Relocation of the existing curb closer to the centerline of the roadway
  • New shared-use paths for pedestrians and cyclists on both sides of South Lamar Boulevard that will comply with ADA guidelines 
  • Access management improvements such as intermittent-raised medians in some locations and driveway modifications 
  • Drainage improvements 
  • Bus stop improvements in partnership with Capital Metro, including a new dedicated transit priority lane northbound through the intersections at Barton Skyway and Menchaca Road
Construction is anticipated in Fall 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.  Construction is anticipated in late 2022.
    • 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 early 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 Fall 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. 

Preparing for Construction

In October 2020, the Texas Department of Transportation (TxDOT) notified the City of Austin that environmental clearance was issued for South Lamar Boulevard, clearing the way for the Corridor Program Office to proceed with construction of mobility and safety projects that are funded by the voter-approved 2016 Mobility Bond. 
In April 2019, City Council authorized staff complete additional design and engineering to prepare projects for construction.  Activities include:
  • Developing corridor construction plans and 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

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.  

Virtual Public Hearing 💻

The City, in coordination with TxDOT, hosted a virtual public hearing for South Lamar Boulevard corridor in July 2020 to share the results of environmental studies that were conducted to evaluate proposed mobility and safety improvements. Click here to review the summary report for the public hearing. To review the information that was presented during the public hearing, click on the gold icon to the right.

Coffee on the Corridor ☕

The CPO held 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 safety 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.

Stakeholder Briefings 💼

The CPO has been meeting with various stakeholder groups to discuss improvements and obtain feedback. We are happy to schedule additional meetings upon request.

Engaging with Businesses 🏢

The CPO 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 to solicit input from corridor businesses regarding ways the City can help minimize disruptions during construction. Businesses who participated expressed a strong desire for good signage and communications during construction. CPO is committed to providing both, and we’ve used their input to inform this Construction Reference Guide. CPO will continue our engagement with South Lamar businesses throughout current construction projects, and in advance of future construction projects along the corridor.
Business Information Sessions
On November 10th and 12th, 2020, the CPO hosted virtual Business Information Sessions to share information about improvements that will be constructed between Riverside Drive and Barton Springs Road in 2021. Click here to view the presentation and the slides. Skip to the minute marks listed below to learn more about the information that was shared:
  • 0:00 - Introductory Statements
  • 3:00 - Corridor Ambassador Team Introductions
  • 4:40 - Project Overview
  • 8:21  - Details of Planned Improvements
  • 17:55 - What to Expect During Construction & Timeline
  • 21:45 - Planned Communications & Outreach

Engaging with Property Owners 🏘️

In fall 2017, the CPO 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.

Public Meetings 🚪

The City of Austin Transportation Department hosted public meetings to share information and gather community feedback during development of the Corridor Mobility Plan for South Lamar Boulevard.
  • Open House #1 was held on December 10, 2014
  • Open House #2 was held on May 27, 2015
On Monday, October 1, 2018, the CPO 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.

Stay Connected

Public feedback remains at the heart of our efforts to make this corridor safer and easier to travel. We will continue to engage the public throughout design and construction, share the latest plans with the community by various methods including: public meetings, stakeholder meetings, electronic updates, and more. We welcome your comments and questions, so please feel free to reach out to us:
Sign up above for our newsletter to receive updates about the 2016 Mobility Bond, specific programs or corridors.

Corridor Mobility Plan

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.
We are actively pursuing funding through various sources to design and construct the improvements that complete the ultimate corridor vision. Potential funding sources include current and future bond funds, grants, partnerships and private investments.
Twitter is @atxcorridors
Facebook is
Instagram is @austintexasgov
Home         Contact Us         Get Notifications          Project Explorer