Sunset Road – Silverbell Road to Interstate 10

2018 AWPA of Southern Arizona – Project of the Year
2017 MPA Common Ground Top 20
2017 ACEC Arizona – Engineering Excellence Grand Award

Structural Design Tucson, Arizona

For over 30 years, Tucson commuters contended with limited access across the Santa Cruz River and connections to I-10 after the flood of 1983 washed away the Sunset Road Bridge over the Santa Cruz River. The restriction in east-west mobility reached a critical point in 2013 when ADOT announced the Ina Road Project which would close the Ina Road traffic interchange (TI) at I-10 and Ina Road Bridge over the Santa Cruz River in 2017 for reconstruction.  In November 2013, Structural Grace, Inc. received NTP and the project team was faced with the challenge of rebuilding this vital east-west connection along a new Sunset Road alignment with a scheduled construction completion date prior to ADOT beginning construction on the Ina Road Project. The Sunset Road Project includes a new 3-lane, multi-modal arterial roadway with paved shoulders, an 8’ shared-use path on the south side of the roadway, a 5’ pedestrian path on the north side and a new 720’ bridge across the perennially flowing Santa Cruz River.  The entire project team – designers, contractor and public agencies – rose to the occasion accelerating the Sunset Road project schedule allowing for opening one day before the closures for the Ina Road Project commenced.