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This project will improve water quality in Buttermilk Creek between Bennett and Blessing Avenues in the St. Johns Neighborhood. The project is located along the creek and extends through the greenbelt. It also includes improvements to the park.

Buttermilk Creek flows into Little Walnut Creek in northeast Austin. Due to poor water quality and several erosion sites, we have identified this watershed as a priority for projects. This project addresses both water quality and erosion issues.

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Proposed Solution

This project will help remove pollutants from stormwater flowing from 655 densely developed acres in and around the St. Johns Neighborhood. The proposed project includes:

  • Rain gardens at Carver, Bethune and Meador Avenues. Rain gardens will hold water for short periods of time when it rains.
  • Bioswale at Providence Ave. A bioswale is a shallow ditch with grasses and plants to help filter stormwater.
  • Channel improvements in four areas to remove the concrete from the creek and replace with natural, erosion-resistant materials
  • Improvements to the outlet at the Delmar Tributary
  • Streambank stabilization at the pedestrian bridge on Providence Ave. 
  • Wildlife habitat improvements along the creek in Buttermilk Neighborhood Park
  • Improved amenities at Buttermilk Neighborhood Park
  • Relocation of the wastewater line in Buttermilk Creek.

Map of Proposed Project

Map showing proposed improvements

This map shows the locations of various aspects of the project described above. Click on the map for a larger version.

Project Goals

  • Improve the water quality and wildlife habitat along the creek
  • Stabilize the banks of the creek to protect existing infrastructure
  • Enhance the health of the creek

Timeline

Our capital improvement projects take many years from start to finish. The process typically includes the following phases: 

  • Feasibility Study – when information is collected to identify potential solutions. 
  • Preliminary Engineering – when a solution is identified and costs are estimated. 
  • Design – when the details are worked out and construction plans drawn up. 
  • Permitting and Bidding – when all permits are acquired and a contractor is hired. 
  • Construction – when the project is built. 

The preliminary engineering phase for this project was completed in May 2023, and we are working on hiring an engineering consultant for the design phase.

Documents

Questions?

Please reach out to one of the people listed below:

Related Links
Buttermilk Creek Streambank Restoration