Submit Your Public Comment on the MoPac South Expansion

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Submit Your Public Comment on the Proposed MoPac South Expansion
Public input closes May 3, 2026 at Midnight.

For the Water, For the People, For the Future. The Central Texas Regional Mobility Authority (CTRMA) is proposing a major MoPac South expansion–adding new toll and auxiliary lanes across 8.8 miles over the Edwards Aquifer Recharge Zone. The proposal calls for 6-8 additional lanes, disrupting wildlife habitats, increasing traffic and pollution, putting our water at risk from increased polluted runoff and years of construction. and neighborhoods. Despite the scale of the project, CTRMA is pushing this project forward without a full Environmental Impact Statement, and less harmful alternatives are not being considered.

Your Voice Matters. Please take a few minutes to submit a personalized comment to CTRMA. Share why Austin’s water, endangered wildlife, beloved Greenbelt trails, and community health matter to you.

Share why Austin’s water, endangered wildlife, beloved Greenbelt trails, and community health matter to you.
Describe how your community and your commute would be affected.
Be specific. If you live, work, recreate, or go to school nearby the impacted area, let them know!
Urge a full, transparent Environmental Impact Statement (EIS).

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***IMPORTANT: You will need to press "SEND EMAILS" for your comments to be officially submitted. Thank you for voicing your concerns against the proposed MoPac South expansion. Read more about this project at Better MoPac Coalition or at CTRMA's MoPac South Project Page.