The Federal Emergency Management Agency is working with Sandy Springs to update its flood hazard maps, also called Flood Insurance Rate Maps. City officials say the process will “produce a better assessment of the Chattahoochee River Basin's current flood risk and will allow officials to develop a more comprehensive approach to mitigate damage brought on by flooding,” according to a news release. The revised maps are scheduled to be released for public comment this fall and would not become effective until the fall of 2012, or later.