MoPac (Loop 1) Expressway

The self-guided webpage will be available online by 5 p.m. Monday, March 9, 2026, and will remain available through Sunday, May 3, 2026.

If you do not have internet access, call 512-342-3299 between 9 a.m. and 5 p.m., Monday through Friday, to ask questions and access project materials.

The in-person hearing will be held at the location below. Participants may attend anytime between 5:30 and 7:30 p.m. The in-person option will follow an open-house format. Attendees may view the same presentation shown in the virtual public hearing, review hard copies of project materials, ask questions of project team members and submit written comments. Verbal comments will not be recorded for the official record.

Tuesday, March 24, 2026
Bowie High School cafeteria
4103 W. Slaughter Lane
Austin, TX 78749

The purpose of the public hearing is to share the draft EA and Build Alternative, and receive public comment on the Central Texas Regional Mobility Authority (Mobility Authority) and TxDOT’s proposed plan to improve MoPac (Loop 1) Expressway from Cesar Chavez Street to Slaughter Lane in Travis County, Texas by adding express lanes in each direction.

Participants may watch a prerecorded video, view exhibits, review the proposed schematic, review the draft Environmental Assessment and associated technical reports and submit official comments. Comments must be received or postmarked on or before Sunday, May 3, 2026, to be included in the official hearing record.

For additional information, call 512-342-3299 between 9 a.m. and 5 p.m., Monday through Friday, with questions about the project.

The Mobility Authority is proposing to add express lanes along approximately 8-miles of the south MoPac (Loop 1) Expressway from Cesar Chavez Street to Slaughter Lane in Austin, Travis County, Texas. The Mobility Authority and TxDOT launched the environmental study in 2013 to identify a mobility solution to this stretch of congested highway that improves mobility for drivers, transit riders, bicyclists and pedestrians in a manner that promotes environmental stewardship and sustainability. 

In compliance with Section 4(f) of the Highway Act of 1966 and Chapter 26 Texas Parks and Wildlife Code, the public hearing will present information regarding the temporary construction easements need to build the project and review potential temporary impacts to park and recreational properties adjacent to MoPac South.

The virtual and in-person public hearing will be conducted in English. Interpreter or document translation services may be provided upon request. Reasonable accommodations may also be requested for persons with disabilities. To request interpretation, translation or other accommodations, contact the project team at 512-342-3299 no later than 4 p.m. Friday, March 13, 2026, for the in-person hearing and no later than 4 p.m. Friday, April 24, 2026, for the virtual hearing.

Se Habla Español: Para más detalles e información acerca del proyecto en español por favor comuníquese con uno de los miembros del equipo al 512-342-3219 y le atenderemos con gusto.

• Notice
• Draft environmental assessment

• In person: Written comments may be submitted at the public hearing Tuesday, March 24, 2026.
• Mail: Central Texas Regional Mobility Authority
  c/o MoPac South
  3300 N. IH 35, Suite 300
  Austin, TX 78705
  
• Email: as shown in the notice 
• Online: The comment form will be available online beginning 5 p.m. Monday, March 9, 2026, through Sunday, May 3, 2026.
• Voicemail (limited to three minutes): 512-387-5811

Comments must be received or postmarked by Sunday, May 3, 2026 to be included in the official record of the public hearing.