20230608 16122600 1.0 TRUE Control Structures Control Structures regulate storm water flow discharging from a Storm Water Management Facility. This dataset contains the Control Structures owned or operated by either the City of Jacksonville Florida or the Florida Department of Transportation District 2 within Duval County Florida. The original municipal separated storm sewer system (MS4) inventory (1997-2007); upon which this dataset has its foundation, was funded by the City of Jacksonville and the Florida Department of Transportation District II.