Owner: Lynn Water and Sewer Commission
Partner: Methuen Construction
Location: Lynn, Massachusetts
Project Description: HB Fleming constructed five cofferdams to allow construction of a new pump station along with launching/receiving pits for a micro-tunneling operation. We drove 150 piles to support the new pump station.
Challenge: The project required excavating 40 feet deep in soft clay.
Solution: We had to excavate in the wet to limit soil pressures, and multiple-phased cofferdams were required to accommodate large changes in footing elevations.
