E. I. Dupont de Nemours & Company — New Outfall Pipe Installation Structure — Deepwater, NJ

Commerce Construction fabricated and installed approximately 1,340 linear feet of plant outfall pipe in the Delaware River coming from the DuPont Chambers Works Plant. This project included the assembly, installation, and hydro-testing of 48-inch HDPE pipeline with a diffuser end section. The diffuser end section, including 13 vertical riser pipes, accounted for approximately 115 linear feet of the total length of the pipe.

The pipeline installation required the excavation of a trench to retain the pipeline and diffuser section in the river bottom. The trench then needed to be backfilled with the previously excavated material upon completion. This project was ultimately completed on time and within budget.