Gwinnett-Archydro: Setting the Foundation for Integrated Water Resources Decision Support
Bourne, Stephen F.
Absher, Charles D.
Hampson, John C.
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Gwinnett County is one of the largest counties in the Metropolitan North Georgia Water Planning District (MNGWPD). Its burgeoning population and growing industry have spurred great interest in cataloging, understanding the workings of, and ensuring the stability of the county’s water resources. This paper will describe the development of Gwinnett-ArcHydro, an information solution comprising an enhanced version of the ArcHydro database schema (Maidment et. al) that catalogs small-basin scale hydrologic, hydraulic, dam breach, and water quality models into the traditional ArcHydro edge/junction stream network. Several goals were identified early on in the development process including: 1) catalog all floodmapping related models in a regional GIS database that enables ongoing modeling of all of the county's river systems; 2) ensure sustainability, adaptability, and expandability of the database design and tools to incorporate new water control structures, new models, and even new study arenas; 3) make all database designs, tools for database population and maintenance, and user interfaces public domain; and 4) integrate the most commonly used tools for hydraulic and hydrologic analysis into the solution. This paper will outline the reasoning for these goals and the solution developed to address them.