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Diamondback Pedestrian Overpass

This is a multi-award-winning pedestrian bridge project that resembles a diamondback rattlesnake over Broadway Boulevard in Tucson. Local artist, Simon Donovan, came up with the design concept. The amazing structure is a 240-foot two-span cast-in-place, post-tensioned concrete box girder bridge with a steel cage in the shape of a diamondback rattlesnake, with eyes that light up at night, and a fiberglass rattle with a motion sensor that makes a rattling sound as pedestrians pass by. The project included lighting, landscaping, seat walls, multi-colored decorative concrete sidewalks, and appurtenances. Bicyclists and pedestrians actively use this unique bridge along the Barraza-Aviation Parkway.

City of Tucson
February 2005
Delivery Method:
Design Engineer:
T.Y. Lin
  • 240 foot, 2-span CIP post-tensioned concrete box girder bridge
    with steel cage
  • Artistic diamondback rattlesnake with lighted eyes and fiberglass rattle
  • Decorative concrete sidewalks
  • Fencing edge bars
  • Landscaping
  • Lighting
  • Masonry walls and decorative boulders
  • Modified attenuator units
  • Motion detector with sound system for the “rattle”
  • Seatwalls


American Council of Engineering Companies (ACEC)

National Honor Award And Grand Award

American General Contractors (AGC)

Build Arizona Award And Build America Award of Merit

Land Surveyors And Civil Engineers of AZ & CA

Award of Excellence And Engineering Excellence Award

American Public Works Association (APWA)

Local And National Award for 2002 Project Of The Year

Federal Highway Administration (FHWA)

2002 Biennial Award Of Excellence

Portland Cement Association (PCA)

Award of Excellence

American Road and Trans Builders Association (ARTBA)

Globe Award-Special Recognition

Arizona Transportation Quality Initiative (ATQI)

Award of Merit

Tucson Weekly – Best of Tucson

2003-Best Public Art

2003-Best Contemporary Architecture

2004 -Best Public Art

2004-Best Contemporary Architecture

International Footbridge

2005 International Footbridge
Award Winner-Aesthetics (long-span)