Hydrography Polygons 2018

This hydrography layer is comprised of surface water features identifiable in the orthoimagery and Lidar point cloud collected for Leon County, FL in the Spring of 2018. The delineation of the hydrographic features reflects the ground condition at the time of source data acquisition. Hydro_Poly and Hydro_Line are 2-D feature classes derived from the 3-D hydrographic breakline data used to complete the 2018 digital terrain model. Hydro_Poly represents rivers and streams wider than 10 feet and ponds and lakes larger than 0.2 acres. The Hydro_Lines represent rivers and streams less than 10 feet wide. TLCGIS regularly uses digital orthophotos and planimetric/hydrographic/topographic data to support regulatory functions, land management and acquisition, planning, engineering and habitat restoration projects. This dataset is part of a regularly scheduled update of LiDAR and digital orthophotography products. The dataset was created using source imagery acquired by a LEICA ADS100 digital mapping camera on January 30-31, 2018, and an LAS dataset acquired by a LEICA ALS80 HP LiDAR system from February 5 through April 25, 2018.