The imagery for the glass is based on photographs of the sky and clouds in Mesa at dusk during a rainstorm. The photographs were scanned into the computer and manipulated to create painterly effects that are sometimes recognizable as clouds, and sometimes totally abstract. The images were collaged to create progressions from one color to another and from clear to cloudy. The dynamic design seeks to capture movements of wind, light and shifting clouds.

During the afternoon, the colored glass panels interact with the sun to project light and color into the bridge walkways. The piece becomes a "painting" of colored light, changing throughout the day as the sun shifts. People walking through the passage become part of the environment, as their shadows mingle with the patterns of light and color.

The glass was fabricated in collaboration with the skilled artisans at Franz Mayer of Munich, Inc. in Germany. Colored metal oxides were applied to each panel by a process of photosilkscreening, airbrushing, and handpainting. Each of 32 panels consists of two pieces of glass that are laminated together: one layer has a photosilkscreened dot pattern of the clouds, and the other panel is freely handpainted and airbrushed. The two layers combine to create an effect that is both graphic and fluid. The glass was baked in a kiln to create permanent lightproof colors.