A light art aesthetic lighting system, designed by installation artists Anna Valentina Murch and Doug Hollis, alters the bridge’s lighting effects based on the Willamette’s speed, depth, and water temperature.
 It uses 178 LED modules to illuminate the cables, towers, and underside of the deck.
The USGS environmental data is translated by specialized software to a processor that issues cues programmed for each of the changing conditions.
 The base color is determined by the water's temperature.
The timing and intensity of the base color's changes, moving the light across the bridge, are determined by the river's speed.
A secondary color pattern is determined by the river's depth, that changes on the two towers and the suspension cables.
A light art aesthetic lighting system, designed by installation artists Anna Valentina Murch and Doug Hollis, alters the bridge’s lighting effects based on the Willamette’s speed, depth, and water temperature.  It uses 178 LED modules to illuminate the cables, towers, and underside of the deck. The USGS environmental data is translated by specialized software to a processor that issues cues programmed for each of the changing conditions.  The base color is determined by the water's temperature. The timing and intensity of the base color's changes, moving the light across the bridge, are determined by the river's speed. A secondary color pattern is determined by the river's depth, that changes on the two towers and the suspension cables.
Tilikum Crossing