As Gwinnett County welcomes two newly redesigned interchanges, Dunwoody is celebrating the one-year anniversary of its diverging diamond at I-285 and Ashford Dunwoody Road. State and local officials spent three years and more than $6 million on the redesign that opened a year ago this month, the first of its kind in Georgia. Early numbers show the design reduced travel times and decreased accidents at the busy interchange that sees more than 55,000 vehicles a day. Click on to see photos from the June 2012 opening and more stats about how the diverging diamond has impacted the region in the past year.