The I-75 corridor in Cobb and Cherokee counties is so densely developed that the 30-mile, two-lane toll road to be built in the corridor will have few negative environmental or social impacts, according to a report from the Georgia Department of Transportation. While there’s no surprise in the result, the lack of impact on critters and land emphasizes the magnitude of the existing highway and development in Atlanta’s northwestern suburbs. “This project is defined as the marginal addition of concrete to a 15-lane road,” said Brian Gist, a lawyer with the Southern Environmental Law Center. “When defined that way, it’s easy to come to the conclusion that it will have no effect.” Visit the blog roll at the right for a link to the full report.