Hildebrand Avenue Will Close for Water Main Upgrades
San Antonio drivers and residents should prepare for six months of closures as crews replace century-old water infrastructure.
Updated on Oct. 13, 2026 in Home Renovation
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Will local traffic flow be manageable during the six-month Hildebrand Avenue construction project?
Starting October 26, 2026, the San Antonio Water System will initiate road closures on Hildebrand Avenue to facilitate the replacement of aging water mains. The project spans the area from McCullough Avenue to Devine Road and is scheduled to last for six months.
Why it matters
Replacing these century-old water mains is essential to prevent frequent infrastructure failures that have historically disrupted local utility service. Investing $11.3 million into this utility overhaul aims to improve long-term water reliability for the surrounding area.
The $11.3 million project covers 4,600 feet of water mains across three construction sites. Work is slated to wrap up by March 2027, with phased closures moving through specific intersections over the next six months.
The players
San Antonio Water System
The public utility provider responsible for the delivery of water and sewer services to residents of the San Antonio area.
The details
Crews will conduct round-the-clock, phased closures of Hildebrand Avenue to swap out failing century-old pipe segments. Contractors are managing the heavy construction process by coordinating specific water service interruptions directly with affected local customers in the construction zone. The work is divided into three distinct sites, moving sequentially from McCullough Avenue toward Devine Road.
Timeline
October 26, 2026: Total road closures begin on Hildebrand Avenue.
November 2026: Work at the McCullough and Hildebrand intersection is scheduled for completion.
December 2026: Construction from Hildebrand to Shook Avenue should conclude.
March 2027: The entire water main replacement project is expected to reach completion.
The Home Front
This project is part of the 2023 Water Main Replacement Project 4, which addresses aging infrastructure across the city. It represents a broader municipal effort to modernize century-old utility grids to ensure long-term stability for homeowners.
Check your local traffic alerts before heading out, as the six-month closure will impact access between McCullough Avenue and Devine Road. If you live in the immediate work zone, watch for direct communication from contractors regarding potential water service interruptions.
The takeaway
Reliable water infrastructure requires periodic, large-scale upgrades that inevitably disrupt local traffic patterns. Homeowners should plan for potential utility service pauses by confirming contact details with the San Antonio Water System if they are located within the active construction zone.
Further reading
Learn more about local infrastructure improvements on the Home Renovation page.
Source note: This article includes information reported by MySA.
Live Poll
Will local traffic flow be manageable during the six-month Hildebrand Avenue construction project?
