Southland Holdings highlights Dallas Mill Creek Drainage Relief Tunnel build with 170,000 cubic yards of concrete liner

• Southland Holdings highlighted work on the Mill Creek Drainage Relief Tunnel, a five-mile stormwater tunnel project in Dallas, Texas.
• Project described as North America’s largest stormwater relief effort, driven by long-standing flooding risks along the corridor.
• Main tunnel includes a 15-inch unreinforced concrete liner totaling 130,000 cubic yards, roughly 170,000 cubic yards across the full job.
• Concrete deliveries travel up to five miles underground, with production aimed at faster strength gain to accelerate form stripping.
• Work scope includes eight shafts, 100 to 180 feet deep, supporting tunnel excavation through the Austin Chalk limestone formation.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Southland Holdings Inc. published the original content used to generate this news brief on August 28, 2026, and is solely responsible for the information contained therein.