Description: Point feature class showing TVA transmission line structures. This feature class is created and updated three times a week through an automated process that pulls tabular data from the TVA Maximo Enterprise Asset Management (EAM) system.
Copyright Text: TVA Transmission & Power Supply, TVA GIS and Mapping
Description: Point feature class showing TVA transmission line stations/substations. This feature class is created and updated three times a week (Tuesday, Thursday, Saturday mornings) through an automated process that pulls tabular data from the TVA Maximo Enterprise Asset Management (EAM) system.
Description: Photo interpreted centroid of buildings with area 300 ft in length on any side of building.The building point feature class is populated from the photointerpretation of aerial photography, and depicts their location in the study area.
Copyright Text: TVA Transmission Line Engineering, TVA GIS & Mapping
Description: This polygon feature class is photo interpreted by TVA GIS & Mapping using heads up digitizing from best available imagery using a modified Anderson Classification Scheme (Anderson et al. 1976). Includes wetlands that are photo interpreted and delineated using the Cowardin Wetland Classification System (Cowardin et al. 1979). The minimum mapping unit (MMU) is five acres for forest, open land and scrub/shrub, for ponds it is three acres.
Copyright Text: TVA GIS & Mapping, TVA Transmission Line Engineering