Brentwood Neighborhood Drainage Improvements Study

These neighborhoods lack adequate drainage infrastructure because they were developed before current drainage regulations went into effect. Homes are built within the floodplain, the storm drain pipes are undersized and erosion threatens streets, utilities, and houses.

Public Meeting

Please join us at the Crestview Neighborhood Association meeting to find out more about the results of this study.

• Date: Monday, April 14, 2025
• Time: 7 p.m.
• Location: Episcopal Church of the Resurrection (in the chapel), 2200 Justin Lane.
• Notes: We will be providing the same information as the Brentwood Neighborhood Association meeting. See below.

Thank you to the Brentwood Neighborhood Association for hosting us at their meeting on April 2, 2025.  

• Get a copy of the presentation from the meeting. 
• Watch a recording of the presentation.

Location

The study area is generally between Burnet Road and North Lamar Ave., starting at Morrow St. to the north and extending south of Koenig Lane. It includes parts of three small creeks that eventually join with Shoal Creek:

• Hancock Tributary
• Grover Tributary
• Goodnight Tributary (flows into the Grover Tributary)

Recommended Projects

1. Lower Grover Channel area – project would include a diversion system for the Grover Channel, streambank stabilization along the Grover Channel, stormwater detention systems at McCallum High School near the tennis courts. Construction for this project is estimated to cost $17.9 million and benefit 24 homes. See map of Recommended Project 1 in the lower Grover Tributary area.
2. Upper Grover Channel area – project would include storm drain improvements on and near Grover Ave. and a detention pond that could function as a dual use soccer facility. Construction for this project is estimated to cost $13.6 million and benefit 23 homes. Construction of this project is dependent on the construction of Lower Grover Channel as Phase 1. See map of Recommended Project 2 in the upper Grover Tributary area
3. Hancock Branch area – project would include underground detention storage along Hancock Channel, storm drain improvements and diversion systems for the Goodnight Tributary, and storm drain improvements in the Madison area. Construction is estimated to cost $33.7 million and benefit 19 homes. See map of Recommended Project 3 in the Hancock Branch area

These projects have been designed to be constructed in phases as funding is available. We have tried to find ways to help reduce flood risk for as many homes as possible, but the projects would not benefit all homes that are currently at risk of flooding. Cumulatively, these projects would benefit 59 homes by reducing the frequency and depth of flooding. Looking at a 100-year storm, which has a one percent chance of occurring in any given year, there are 70 homes at risk of flooding in the project areas. For more information about current flood risk, please see the Existing Conditions Map.  

Please note that the proposed stormwater detention systems in the lower and upper Grover Channel areas are contingent upon future negotiations with property owners. 

Timeline and Status

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

• Preliminary Engineering – when a solution is identified and costs are estimated.
• Design and Permitting– when the details are worked out, construction plans drawn up and all permits are secured.
• Bidding – when a contractor is hired
• Construction – when the project is built.

The extent of the drainage issues and the high cost of potential solutions have extended this process and been a barrier to proceeding with a construction project in the past. Multiple studies have been done to evaluate the flooding in this area, starting in 2008.

The current study kicked off in 2016 with data collection and a review of past studies. The project moved into Preliminary Engineering in 2023. Please note that we have not identified funding to move into design or construction phases.

Documents

• Map of Proposed Project Alternatives

Questions

Please reach out to one of the following people:

• Dario Octaviano, Project Manager, 512-974-7607 or email Dario Octaviano
• Pamela Ruiz, P.E., Project Sponsor, 512-974-6313 or email Pamela Ruiz
• Danielle Guevara, Project Sponsor, 512-974-3011 or email Danielle Guevara

To sign up for email updates, please email Stephanie Lott or call 512-974-2799.