How did they do that? Part II Replacing water mains by excavation

UPDATE May 18, 2020 – Three weeks ago we began to reveal what's going on behind the scenes of New Rockford's water main replacement project.

For Part II of our series, we caught up with Jeff Douty of Interstate Engineering, who helped break down the current progress of the project and explain how they unearth the old water lines and install new ones using excavation.

First they have to indicate wh...