A total of 15 shipyards had been constructed along the United States coastlines. As early as 1767, the U.S. Navy engineered and manufactued landscapes to fabricate and maintain battleship fleets, keep up with technological upgrades, and sustain military agendas. Today, only five remain, leaving former shipyards as massive voids in the ever-expanding urban metropolis. This design research traces inactive shipyards as a context of productive memory and reveal new knowledge on geographies of military infrastructure and power.