The City is upgrading its water supply system, including the reservoir. HHR conducted hydrologic analyses of the Hazel Creek Multiple-Purpose Dam No. 7, built in the early 1960’s as both water supply for the City of Cornelia and for flood control. As an Engineer-of-Record with Georgia Safe Dams Program, HHR prepared this analysis to show that upgrades meet Georgia Safe Dams Program Category I Standards, including dam breach study. HHR provided safe yield calculations for the stream to meet state environmental regulations.