FEMA Mitigation Best Practices: Risk MAP Success Story: Gwinnett County, Georgia Revamps Stormwater Infrastructure Improvement Plans [open pdf - 35KB]
"Gwinnett County, Georgia, lies at or within the upper limits of three major watersheds: the Upper Chattahoochee, the Oconee, and the Ocmulgee. As a result, overall flooding impacts are comparatively smaller than those experienced by other neighboring counties. Gwinnett County's main flood related concerns center on stormwater infrastructure maintenance and improvement. The County has an established Stormwater Management Utility, which is charged with overseeing these concerns. In recent years, the director of the Stormwater Management Utility has been compiling a list of culvert upgrades, repairs, and retrofits needed throughout the County, but has not been able to adequately prioritize the listed needs. Instead, he has been forced to rely on observation and historical accounts."
Federal Emergency Management Agency: http://www.fema.gov/