Updated 2/7/14 to correct the timeline of the lawsuit against MSD.
The Metropolitan St. Louis Sewer District is preparing for its first big dig.
Starting in a few days, MSD will begin construction of a 3,028 foot-long tunnel under the River Des Peres, just south of Carondelet.
The tunnel will hold a pressurized pipe that will carry sewage to the Lemay Wastewater Treatment Plant.
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