Inside Tucson Business » Government officials working on a study of the Sonoran Corridor Project say it would be “a regional economic catalyst,” noting that hooking up I-10 and I-19 near Tucson International Airport would be a “multilevel, multistep, multiyear economic development initiative” for Pima County and Southern Arizona.  The report on the project suggests that the new travel route ultimately chosen would significantly transform the regional economy, “adding billions of dollars (their estimated annual impact would be $32 billion) and tens of thousands of jobs (their estimate is 200,000 jobs) to the Tucson valley.”