Del Curto Storm Drain Improvements
February 2026 Construction Update
This month, crews have been installing box culverts for the Del Curto Storm Drain Improvements (SDI) project. Box culverts are concrete structures that allow stormwater to flow underground. During this work, you may notice increased noise in the area. Austin Energy is also installing a duct bank, an underground pathway that protects electrical and telecommunication lines.
Water Shutoffs:
Planned water shutoffs will occur periodically throughout this project. In any case, notices will be placed at affected properties' front doors at least 48 hours in advance.
Box Culvert Installation
Completed Work:
- Installed water line at Thornton Road
Current Work:
- Austin Energy duct bank installation
- Minor water line relocations
- Installing wastewater line at Thornton Road
- Box culvert installation
Water Line Relocation
Project Background:
The Del Curto SDI project will improve the storm drain system in the South Lamar area and help protect the area from flooding. The existing Del Curto storm drain system straddles South Lamar Boulevard. It consists of 9,300 feet of pipe, a section of open channel and 38 inlets. The 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. This 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
Reminders:
- This is an active construction site. For the safety of the public, unauthorized entry is not permitted.
- Permitted construction hours are:
- 9 a.m. to 4 p.m. at the Thornton Road worksite
- 7 a.m. to 7 p.m. at the Kinney Road to Bluebonnet Lane worksites
- Please note that as with any construction project, schedules are projected as accurately as possible, and all dates are subject to change due to the nature of construction and weather.
For more information, email CapitalDelivery@AustinTexas.gov
Visit us online at AustinTexas.gov/StormDrains
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