IceWall (2006, S-Fest) explored time and boundary conditions. My work as an architect has often reflected on the nature of walls, as thin scrims and screens or thick containers. Through this project, which I realized just after moving to Tucson, I was interested in exploring transformation of a wall from something with the negative connotations of our border fences into something positive—cooling, replenishing (vegetation), and disappearing, creating connection in lieu of separation. Over the course of 24 hours, the water from the melted ice was collected into jugs (that a group and I salvaged from the Santa Cruz riverbed close to the border) bearing new photo-labels of borderland boundaries I’d experienced in recent years: the DMZ, the Berlin wall, the Calexico-Mexicali and Tijuana fences.