Flood Information
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Floodplain Awareness
Gwinnett County has approximately 24,000 Acres of floodplain. Floodplain is very beneficial to our overall ecosystem; water quality is improved through the wetlands ability to filter nutrients and impurities from runoff and process organic wastes. Our Floodplain Management Ordinance prohibits construction within the floodplain. A home built on a floodplain lot is required to be elevated three (3) feet above the 100 year Base Flood Elevation (BFE). We currently have about 500 policyholders within the county who have purchased flood insurance through the National Flood Insurance Program (NFIP). Each of these policyholders will realize a 15% discount this year based on Gwinnett County being an active and participating member of the Community Rating System (CRS). If you are currently paying for flood insurance you may be eligible to apply for a Letter of Map Amendment (LOMA) and cancel your flood insurance. Please take a moment and review our new Flood Information Site. It is full of informative and interesting news.
Flood Safety Concerns
Although there are natural benefits to a floodplain we all know of the safety concerns caused by flooding. Because of this we hope to provide you with the information you need to be prepared for the next serious storm. The information below provides the appropriate tools to allow you to make a more informed decision. Please use the links below to find what you need. The PDF files contain information pertinent to the topic, or tell you how to locate more information about that particular topic. Also existing elevation certificates are available for some residential properties at the Gwinnett County Department of Planning and Development.
- Gwinnett Flood Information Portal
- Floodplain Information
- Ongoing Georgia Flood Mapping, Assessing, and Planning Program
- Flood Insurance/How to Find Maps of the Local Flood Hazards (PDF)
- Floodplain Development Permit Requirements (PDF)
- Flood Warning System (PDF)
- Drainage System Maintenance (PDF)
- Natural/Beneficial Functions (PDF)
- Gwinnett Public Library System (Titled "Flood Protection Library")
- FEMA Flood Map Service Center
- Elevation Certificates & Instructions
- Processing Letters of Map Amendment Or Revision (PDF)
- Georgia Department of Natural Resources: http://www.gaepd.org/
- FEMA - (Federal Emergency Management Agency): www.fema.gov/
- Understanding the 100 Year Flood Plain