Dallas Drainage Project Reaches Milestone

Steven Pickering
December 03, 2019 - 6:36 am
Mill Creek Drainage Relief Tunnel Machine

Credit: City Of Dallas


DALLAS (1080 KRLD) - A flood-control project for east and south Dallas is entering a new phase of construction.

City officials today will offer glimpse of the giant tunnel-boring machine before it begins its work underground.

The machine, nicknamed "Big Tex" with permission from the State Fair of Texas, will be used on the Mill Creek Drainage Relief Tunnel. The machine is the largest of its type ever assembled in Texas and is being used on the largest tunnel project currently underway in the United States. It will create a 30-foot diameter tunnel capable of handling up to nine million gallons of water per minute.

The five-mile long tunnel will start at a location just north of Woodall Rodgers Freeway in downtown Dallas, run past Baylor University Medical Center and Fair Park, then end near Highway 352 and White Rock Creek. The goal of the project is to protect 6,000 structures east Dallas, near the Baylor University Medical Center and just south of downtown from flooding.

Most parts of the existing drainage system in that area are more than 50 years old.

The areas covered by the Mill Creek Drainage Relief project have experienced flooding four times in the past 25 years. The new project is designed to provide 100-year flood projection for the area.

City officials will take part in a ceremony today to sign the cutter head of the Big Tex tunnel-boring machine before it is moved into the tunnel.