A salt marsh is an ecosystem that builds upon itself. While most landmasses are in a state of erosion, a salt marsh is in a state of accretion in a transitional place between land and water. My thesis studies this place “in-between” that facilitates growth by filtering water and nutrients and building land from sediments and organic matter. The gesture on the derelict site is to intervene to encourage regrowth and reestablish a salt marsh with respect to its nature of healing and rebuilding the site. The model of steel and paper studies the fragility of the site and the proposed ecosystem that could sustain itself between the mighty tidal Hudson River and the Palisades.