Del Curto Flood Risk Reduction
CIP ID: 5789.069
Project Overview
This project will improve the storm drain system in the South Lamar area and help protect the area from flooding. The project includes:
- Installing new storm drain pipes or upgrading existing ones on Bluebonnet Lane, Del Curto Road, Delcrest Drive, Iva Lane, Kinney Road, Southland Drive and across properties between Kinney Road and West Bouldin Creek.
- Adding curb and gutter along part of Bluebonnet Lane.
- Installing a new roundabout at the Del Curto Road and Bluebonnet Lane intersection.
- Building a shared-use path for pedestrians and cyclists on Bluebonnet Lane, between South Lamar Blvd. and Del Curto Road.
It consists of 9,300 feet of pipe, a section of open channel and 38 inlets. The existing system is not large enough to drain the amount of stormwater that it needs to. There are at least 20 buildings, yards, and streets at risk of flooding.
- Cost
$9.7 million
Funding from 2018 voter-approved bonds and the drainage charge.
- Work Hours
Monday through Saturday
7 a.m. to 7 p.m.
In the Thornton Road area, work hours are 9 a.m. to 5 p.m.
- Timeline
Construction started in November 2025 and is expected to be complete at the end of 2027.
South Austin, Council District 5
Project Map
This project is in the West Bouldin Creek watershed. The project is located on the southeast side of S. Lamar near Bluebonnet Lane, Del Curto Road and Thornton Road.
What to Expect During Construction
This is a major construction project. Please be patient while we work to reduce the risk of flooding in your neighborhood. Please expect:
- Noise, dust, and increased activity.
- Workers, equipment, and material storage within fenced construction areas.
- Trenches to install concrete box culverts below the roadway and in drainage easements for the new storm drain system.
- Digging behind the curb in some spots to install inlets.
The road is part of an active construction site. Final paving will happen after all work is complete. In the meantime, we are sweeping the street and applying temporary asphalt patches to allow use by drivers, cyclists and pedestrians.
Things to Remember
- Please slow down around workers, obey all signage, and do not park in "No Parking" zones.
- Stay out of all fenced-off areas and keep child and pets away from construction sites and equipment.
- Leave extra time for travel.
- Water, Garbage and Utilities
Set your garbage, recycling, and yard trimmings out as usual.
We will need to shut off water periodically to complete some of the work for this project. We will leave a notice 48 hours in advance with two exceptions:
- We may briefly turn off water without notice to test valves and equipment ahead of a planned outage.
- There is always the possibility of a temporary, loss of water or other service if a pipe or line is broken. We’ll respond immediately to restore service if this happens. We have done a lot of research ahead of time to pinpoint where all the underground utilities are. This should help us avoid breaking any pipes.
- Home Access
Driveway access will be maintained. During active excavation, there may be a 15-minute delay while crews secure the area for safe access. Please leave extra time for travel.
Key Contacts
For construction issues: Oscar Ramirez, Construction Inspector, 512-948-6098
For questions about the drainage improvements: Abhi Raghavan, Project Manager, 512-974-7810 or Heather Peart, Project Sponsor, 737-393-6106
For questions about the roundabout: Jennifer Newell, Project Manager (for the roundabout), 512-974-2862
Want to Know More?
This is a project to reduce the risk of localized flooding. Before stormwater runoff reaches a creek, it usually flows through a system of smaller ditches and drainage pipes. When this system is undersized or damaged, there may be localized flooding.
We have acquired a number of easements before starting construction. Some provide space for water to flow. Some allow us to install, access, and maintain pipes and other infrastructure.
Explore this interactive map to see what area drains to West Bouldin Creek and other Austin watersheds.
Use the information and resources on this page to protect yourself, your family and your property before, during and after a flood.
This is a project to reduce the risk of localized flooding. Before stormwater runoff reaches a creek, it usually flows through a system of smaller ditches and drainage pipes. When this system is undersized or damaged, there may be localized flooding.
We have acquired a number of easements before starting construction. Some provide space for water to flow. Some allow us to install, access, and maintain pipes and other infrastructure.
Explore this interactive map to see what area drains to West Bouldin Creek and other Austin watersheds.
Use the information and resources on this page to protect yourself, your family and your property before, during and after a flood.