USGS station 02337410 Dog River at Ga 5, near Fairplay, Ga, photo taken during the 2009 flood event, this station recorded a peak gage height of 33.83 feet with a corresponding peak streamflow of 59,900 cubic feet per second.

In the Atlanta metropolitan area, a hydrologic data-collection network has been established to collect real-time streamflow, precipitation, continuous and discrete water-quality data. The USGS South Atlantic Water Science Center (SAWSC) Urban Hydrology Unit (UHU), located in Norcross, Georgia, has been working in cooperation with local municipal and county agencies in and around the Atlanta...

Many days of continuous heavy rain in mid-September 2009 resulted in flooding in many parts of Georgia, especially in north Georgia and the Atlanta region. The rains produced streamflows of record proportions. rivers and streams had magnitudes so great that the odds of it happening were less than 0.2 percent in any given year. In other words, there was less than a 1 in 500 chance that parts of...