seriesNo,seriesEntityName,seriesTitle,seriesDateRange,seriesArrangement,seriesDescription,seriesTotRetentDesc,seriesPrimaryClassCode,seriesExtentDesc 3329,Department of Transportation. Engineering & Operations. Project Development. Structures,County and state bridge inspection records,i 1920-,Numerical by structure number,"These records are created by the Structures Division to document all bridge inspections in Utah. Inspections take place every two years. These records include a history of each bridge from the time it was designed and built to the date of its last inspection. Also included are original plans and photographs. In additions\, these records become the resource used by the Locations and Environmental Studies division of Transportation in compiling inventories for the National Bridge Inventory Program. The inventories are then used by the Library of Congress. Early bridge records are maintained by the Utah State Historical Society\, later ones by the State Archives.",Permanent. Retain until disposition of asset,Protected,