Arizona, USA

I10/SR303L System Interchange


Arizona Department of Transport (ADOT)



Construction budget

USD 233 million

Key facts

I10 / SR303L interchange. 5-level interchange, 8 km of highway, 11 km of service and collector-distributor roads and 14 bridges.


Detailed design


Globe, awarded by the American Road & Transportation Builders Association (ARTBA) for contributions to environmental protection and mitigation.

ENR Southwest Best Transportation Project awarded by McGraw Hill and ENR magazine.

Roads and Bridges’ Top 10 Roads award, in competition with projects from all over the US.

Silver Award Divided Highways (Urban), national prize awarded by the American Concrete Pavement Association.

Engineering Excellence Honor Award, local award given by the American Council of Engineering Companies.

2019 National Project of the year over USD 20 million by the American Society of Highway Engineerign (ASHE).