Storm water infrastructure – lessons learned Gwinnett County, Georgia
Vick, Janet P.
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The need for infrastructure inventory has existed for years. Requirements of the Metropolitan North Georgia Water Planning District Plans, GASB34 and re-issuance of the National Pollution Discharge Elimination System for Municipal Storm Sewer System have brought the issue to the forefront. Gwinnett County began collecting information for Storm Water Infrastructure Inventory 15 years ago. The methods used for data collection has changed many times over this period. Changes in technology, hardware and software have made the collection and maintenance of infrastructure inventory easier and faster. Our program has evolved over time; some of the things that were done worked and some of them did not. This evolution has gone from paper maps to a digital networked system that can trace flow upstream or downstream from any given point. Key factors in a successful program include data dictionary development, method of collection and storage, and the maintenance of the data set. To date, Gwinnett County has collected information on over 82,000 structures and 950 miles of pipe