All NHD downloads contain a copy of the corresponding WBD dataset that is current only to the date the NHD dataset was created. The National Hydrography Dataset is available in shapefile and file geodatabase formats. Updates to select areas in CONUS will begin in 2022 and initial production will continue in Alaska.ĭownload the NHDPlus HR by 4-digit Hydrologic Unit (HU4) for CONUS or by 8-digit Hydrologic Unit (HU8) for Alaska The first version of the NHDPlus HR is currently available for CONUS, Hawaii, and U.S. NHDPlus HR raster data files are available for download as zipped (.7z) files. All NHDPlus HR GDB downloads contain a copy of the NHD and WBD datasets used to produce it, plus additional data specific to the NHDPlus HR dataset. NHDPlus HR vector data is available in file geodatabase (GDB) format, zipped (.zip) to reduce the file size. The NHDPlus HR data includes a vector and raster component for each geographic area produced. It is recommended that you use Windows Extract or another other software of your choosing to unzip this product.ĭownload Option 1: Downloadable Product Directories NHDPlus High Resolution (NHDPlus HR)
Please note - An error occurs to header files of the datasets below during decompression with 7zip.
