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City staff urges Austin City Council to pause committing more money for I-35 caps as costs rise

March 26, 2026

  • What: City staff told council members not to promise additional city funding for caps over Interstate 35 while project costs increase and outside funding has not materialized.
  • Who: Austin city staff and Austin City Council members, involved in planning caps and park projects over I-35.
  • Why it matters: The decision affects whether the city will allocate more local funds to build parks and structures over the highway, and could reshape budget priorities and neighborhood reconnection plans.

City staff told Austin City Council members they should not pledge additional city money for projects that would cap Interstate 35, as estimates for those caps have climbed and expected outside funding has not appeared. Staff framed the guidance as a caution to prevent premature budget commitments while key financial details remain unsettled.

The proposed caps would build structures over the widened highway to create public space and better connect neighborhoods separated by I-35. Supporters have pitched the caps as a way to add parks and improve walkability, but the projects would require substantial construction and long-term maintenance commitments from the city.

Staff warned that rising price estimates make it risky for the city to lock in more funding without firm external contributions. With no outside dollars identified, staff urged council members to pause further financial pledges, so planners can refine cost estimates and evaluate funding options.

City finance and transportation staff are continuing to analyze the projects, updating cost projections and looking at possible funding scenarios. They recommended the council wait for clearer numbers and potential partner commitments before approving additional local expenditures.

Council members now face a choice between advancing the capping and park plans using more city funds, or delaying decisions until funding is more certain. A pause would give staff time to report back with updated estimates and funding strategies, but it could also slow progress on reconnecting neighborhoods across I-35.

Officials say next steps include further briefings and potential revisions to project scope based on the updated financial picture. Council will review staff guidance and determine whether to proceed, scale back, or hold the proposals until outside funding is secured.

Sources

  • City staff briefing
  • City Council meeting materials
  • Project cost estimates