Lightweave is located north of Union Station in Washington, D.C., in a neglected underpass for pedestrians, cyclists, and vehicles beneath the tracks of one of the busiest railway stations in the United States. The project stitches two neighborhoods together with light. A woven structure of steel and luminaires creates a serpentine chandelier hovering above the sidewalk. The artwork moves people through the otherwise dark underpass and creates an illuminated, dynamic, ever-changing path for them to traverse. Its illumination responds to the vibration of the train tracks above, giving residents and commuters a sense of the cadence of the infrastructure and a reading into the ebb and flow of urban life.