What do you do with a big hole in the ground? You fill it, of course. The first phase of the long-awaited $25 million Portland Harbor dredging project — construction of a 9-acre confined aquatic ...

The project, which has been in the planning stages for decades, involves creating an underwater pit to contain contaminated sediment from over 45 marine sites throughout Portland Harbor.

You fill it, of course. The first phase of the long-awaited $25 million Portland Harbor dredging project — construction of a 9-acre confined aquatic disposal pit, or CAD cell — was completed ...