The Mill Creek Drainage Relief Tunnel is a construction project that will bring needed infrastructure improvement to east Dallas.

The tunnel, which stretches from the State-Thomas District in Uptown Dallas, through Mill Creek and Peaks Branch, will be constructed mostly underground with little impact to neighborhoods. Once complete, the approximately five mile-long tunnel will sit 70 to 100 feet below ground to provide flood relief.

Construction began in March 2018 and is slated for completion in 2023.


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