The Confluence Project is the second phase of the Waterloo Greenway project within the Waller Creek District.

This project was formerly referred to as Creek Mouth or Creek Delta. The approximately 13-acre project will improve the stability and ecology of over 2,500 feet of Waller Creek, from 4th Street to where the creek joins Lady Bird Lake. We will improve water quality and aesthetics as well as allow for the creation of a continuous hike and bike trail along the creek. 

Construction Status

July 2024: There will be a series of detours on the Ann and Roy Butler Hike and Bike Trail to install two lattice bridges over Waller Creek and the Lagoon Overlook and Leaf Deck. The first detour starts on Monday, July 22, weather permitting, and should last through the end of August. Meanwhile, work continues to progress on: 

  • A biofiltration pond to improve water quality in Waller Creek,
  • A creek level walkway between Third and Fourth Streets,
  • An elevated walkway near the pond, and
  • The new Cypress Grove Bridge over Waller Creek. 

Detours on the Ann and Roy Butler Hike and Bike Trail

The first of a series of detours will route users of the trail onto a temporary, 12-foot wide, crushed granite trail just east of the existing bridge over Waller Creek. The temporary trail will be fenced on either side, and users will continue to cross Waller Creek on the existing bridge. Subsequent detours will differ on the route over the creek.

Periodically, bicyclists and pedestrians may need to stop briefly to allow construction traffic to cross the trail. There will be a flagger, and gates will keep trail users separate from vehicular traffic.

Map showing detour on Ann and Roy Butler Hike and Bike Trail

Please be aware that there are other, unrelated project detours happening simultaneously on the Ann and Roy Butler Hike and Bike Trail. For a complete list of trail closures, visit


The vision for The Confluence includes: 

  • Sustainable SITES Initiative certification, which recognizes projects that use nature-based solutions to increase resiliency
  • A restored creek habitat that integrates green water quality infrastructure 
  • Four trail bridges, including three lightweight suspension bridges south of Cesar Chavez
  • Approximately one mile of new and improved trails, including a creek-level trail and elevated boardwalk. 


Map showing the Confluence

The Confluence is shown in green on this map.

Construction Impacts

  • Work will be between 7:00 a.m. and 7:00 p.m. on weekdays and potentially some weekends.
  • A portion of Palm Park will be closed during construction for a staging area. The playground, picnic tables, and stone shelter house will remain open.
  • Part of Third St. will be closed, including the sidewalk near the Convention Center pond. 
  • Fencing will be installed around active construction and staging areas. Additional staging and storage will be at:
    • The Waller Creek Tunnel inlet facility between 4th and 5th Streets
    • On the west bank of Waller Creek, south of Cesar Chavez
    • The Emma S. Barrientos Mexican American Cultural Center parking lot. This parking lot is currently closed to the public for the ESB-MACC Phase 2 Improvement Project.
  • There will be temporary traffic controls near access points.
  • Any potential impacts to the Ann and Roy Butler Hike and Bike Trail will be coordinated with The Trail Conservancy and communicated to the public. Current Trail impacts:
    • A public trail that connects Cesar Chavez to the Butler Hike and Bike Trail will be closed for the duration of the project. The trail is next to the Lakeside Apartments.
    • Beginning June 10, for approximately two weeks, a small area of the Butler Trail will be temporarily realigned to accommodate the installation of an Austin Energy manhole. The trail will remain open.
  • You may notice trucks, equipment, dust, and noise.


The project is currently in the construction phase. Construction for this project began in May 2023 and is expected to be completed in the spring of 2026. 

Please note that as in any construction project, schedules are projected as accurately as possible. All dates are subject to change due to the nature of construction and the weather. 


The estimated construction cost, including contingencies, is $75 million dollars.

The Confluence is funded by a combination of City funding, federal funding and private philanthropy.

  • The Waterloo Greenway Conservancy has committed $13 million dollars towards the project.
  • The City of Austin funding totals over $50 million. It comes from the Tax Increment Financing Zone No. 17 fund and multiple departments, including Watershed Protection, Parks and Recreation, Development Services, Austin Energy, Convention Center, and Austin Water. The Tax Increment Financing Zone only uses funds generated from the increased property values and property taxes within a portion of the Waller Creek District.
  • The project has received approximately $9 million in federal funding from the U.S. Army Corps of Engineers.  

Boards and Commissions 

The project team reports to the following boards and commissions: 


Public Meeting Presentation, April 2023

Recording of Virtual Meeting, April 2023

News Release, January 2023

Email Updates 

Email Joan Esquivel to receive future email updates about the project.