I-35 Capital Express Central Project

• Project History / Historia del Proyecto
• CapEx central project construction mitigation fact sheet
• Live35 Aesthetics Design Program / Programa deDiseño Estético de la I-35
• Lady Bird Lake segment schematic (PDF - 08/05/2025)
• Downtown segment schematic (PDF - 08/05/2025)
• University segment schematic (PDF - 08/05/2025)
• Technical schedule (PDF - 09/05/2025)

TxDOT is closely collaborating with both the City of Austin and University of Texas on the conceptual design of deck caps and stitches along the project corridor. The City of Austin and UT will fund operations and maintenance of these enhancements throughout the life of the project. TxDOT is building the infrastructure and putting fire suppression requirements in place during construction.

• Possible Deck Cap Locations (PDF - 08/07/2025)
• Learn more about the City of Austin’s Cap and Stitch Project by visiting the OurFuture35 Program website.

• More than 19 miles of new shared-use paths.
• Vehicle bypass lanes to reduce through traffic at 28 intersections.
• 13 connections to urban trail network and bicycle network.
• I-35 mainlanes will be lowered; upper decks will be removed.
• Existing east-west crossings will be widened and enhanced; new bicycle-pedestrian crossings will be constructed at 4th Street, 55th Street/Capital Plaza, Red Line at Airport Boulevard, Lady Bird Lake and Woodland Avenue.
• Additional bicycle-pedestrian crossings include 41st Street.

Community Connectors is a series of meetings about construction on the I-35 Capital Express Central project. These are open-house-style events with no formal presentation planned. The purpose of the series is to inform the public about construction-related activities and updates, and to gather feedback.

Learn more about Community Connectors meetings.

TxDOT has established a grant support program as part of the I-35 Capital Express Central project. This program helps community organizations by offering grant writing assistance, identifying funding opportunities and improving grant compliance for groups impacted by the project.

Learn more about the new Community Grant Support Program.

In September 2023, TxDOT published the Final Environmental Impact Statement (FEIS) and Record of Decision (ROD). The Notice of Availability and FEIS with select appendices can be found below. Additional appendices can be provided upon request.

• FEIS/ROD
• Notice of Availability / Aviso de Disponibilidad
• Public Comments Report
• Appendix A: Project Location Map
• Appendix B: Design schematics
• Appendix C: Typical Sections
• Appendix D: Agency Coordination
• Appendix E: Scoping Comment Themes
• Appendix F: Public Hearing/Notice of Availability
• Appendix G: Public Hearing Comment/Response Matrix
• Appendix H: Traffic Data
• Appendix I: Scoping Documents
• Appendix J: Community Impacts
• Appendix K: Transportation Access Studies
• Appendix L: Historic resources
• Appendix M: Protected lands
• Appendix N: Water Resources
• Appendix O: Biological Resources
• Appendix P: Air Quality
• Appendix Q: Hazardous Materials
• Appendix R: Traffic noise
• Appendix S: Delphi Panel Summary Report
• Appendix T: Texas A&M study
• Appendix U: MIS Renderings
• Appendix V: Greenhouse Gas and Climate Change
• Appendix W: Stakeholder List
• Appendix X: Construction impacts

• Dura Tune Archival Documentation
• Roberts House Archival Documentation
• Elgin Butler Brick Company Archival Documentation
• Haster House Archival Documentation