I-10 / Twin Peaks Traffic Interchange
The Twin Peaks Interchange provides an important regional connection to I-10 from neighborhoods in the Town of Marana. It is the first completed Regional Transportation Authority (RTA) project. WDG's scope included native plant inventory, salvage and replanting in compliance with the mitigation requirements of the 404 permit, planting plans, irrigation plans, erosion control plans, and design of architectural treatments. Construction completed in 2010.