As part of the US 60 freeway renovation project, the city of Tempe and Arizona Department of Transportation replaced the old College Avenue Bicycle/Pedestrian Bridge with a new, more attractive and functional bridge. This new bridge is more accessible for users, including people with wheelchairs, bicycles and strollers. In addition, the new bridge included an artist-designed feature to enhance the experience of adjacent property owners, users of the bridge and motorists on US 60. The bridge connects Evans School and Palmer Park on the south side of US 60 with neighborhoods on the north side of US 60.
 

The art element, called Sirens of the Superstition, is located on the sound walls and ramps facing the neighborhoods at the College Avenue and the US 60 Bicycle/Pedestrian Bridge. The art element, which was created by Michael Maglich, consists of a flock of birds which appear to descend the ramps on both sides of the bridge and fly across the patterned walls. Approximately 180 birds, the size of pigeons, were made of latex reinforced concrete and attached to the sound walls.  Lighting, landscaping, trash cans and water fountains were also incorporated into the project.
 

The College Avenue Bicycle/Pedestrian Bridge was installed on April 20, 2002. The public art portion of this project was installed in December 2003.