The High Trestle Trail Bridge, is the fifth longest pedestrian and bicycle bridge in the US. This bridge connects over 600 miles of trail in central Iowa. And, the bridge itself which is over a half mile (770-meter) long, spans the Des Moines River Valley. With its design embracing local coal mining history and geology of the area, site-specific installation utilizes a tunnel of steel cribs, mimicking the structure of an old mine shaft, and abstracting them in a manner which evokes a sense of whimsical travel through time and space.

During night fall, experiences on the bridge become even more surreal. Blue light-emitting diodes (LED’s) on the bridge highlight the playful geometry of the cribs, drawing users in and gently releasing them through the other side. Not only has the installation been an experiential gift to the public, but it has also been recognized as a major contribution to regional economic development, with an additional 15 to 20 thousand people per month traveling to the local communities on both sides of the bridge.

Thanks to the collaboration between public artists, engineers, architects, lighting designers, landowners and the public, the High Trestle Trail Bridge is now a major feature in the state of Iowa, uniting five distinct communities along the trail.

More Info: en.wikipedia.org