The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee. For additional information on NHD, go to https://www.usgs.gov/national-hydrography.

This map service represents the percent change in modeled streamflow metrics between the historical (1977-2006) and mid-century (2030-2059) time periods in the United States. In addition to standard NHD attributes, the streamflow datasets include metrics on mean daily flow (annual and seasonal), flood levels associated with 1.5-year, 10-year, and 25-year floods; annual and decadal minimum weekly flows and date of minimum weekly flow, center of flow mass date; baseflow index, and average number of winter floods.�These files and additional information are available on the project website,�https://www.fs.usda.gov/rm/boise/AWAE/projects/modeled_stream_flow_metrics.shtml. Streams without flow metrics (null values) were removed from this dataset to improve display speed; to see all stream lines, use an NHD flowline dataset.Hydro flow metrics data can be downloaded from�here.This record was taken from the USDA Enterprise Data Inventory that feeds into the https://data.gov catalog. Data for this record includes the following resources: ISO-19139 metadata ArcGIS Hub Dataset ArcGIS GeoService Geodatabase Download Shapefile Download For complete information, please visit https://data.gov.

Classified Flowlines, 20190426 (1:2,400) - Shows classified drainage flowlines as streams, rivers, canals, ditches, artificial paths, connectors and pipelines for all watersheds in Indiana.This layer is derived from the local-resolution National Hydrography Dataset (NHD), and provides currently available data as of April 26, 2019. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. Also, high-resolution NHD, generally developed at 1:24,000 to 1:12,000 scale, adds detail to the original 1:100,000-scale NHD. The local resolution NHD is developed at 1:2,400 scale, and adds even more detail to the NHD. This dataset is complete and includes data for all of the following thirty-eight HUC08 subbasins in Indiana: Auglaize (0410007), Blue-Sinking (05140104), Chicago (07120003), Driftwood (05120204), Eel (05120104), Eel (05120203), Flatrock-Haw (05120205), Highland-Pigeon (05140202), Iroquois (07120002), Kankakee (07120001) Little Calumet-Galien (04040001), Lower East Fork White (05120208), Lower Great Miami (05080002), Lower Ohio-Little Pigeon (05140201), Lower Wabash (05120113), Lower White (05120202), Middle Wabash-Busseron (05120111), Middle Wabash-Deer (05120105), Middle Wabash-Little Vermilion (05120108), Middle Ohio-Laughery (05090203), Mississinewa (05120103), Muscatatuck (05120207), Patoka (05120209), Salamonie (05120102), Silver-Little Kentucky (05140101), St. Joseph (04050001), St. Joseph-Maumee (04100003), St. Mary’s (04100004), Sugar (05120110), Tippecanoe (05120106), Upper East Fork White (05120206), Upper Great Miami (05080001), Upper Maumee (04100005), Upper Wabash (05120101), Upper White (05120201), Vermilion (05120109), Whitewater (05080003), Wildcat (05120107).The following is excerpted from metadata provided by the IDNR: "In order to meet the USGS NHD data model for flowlines, all new flowlines resulting from the Indiana NHD local resolution upgrade project that could not be categorized (artificial path, canal/ditch, coastline, connector, pipeline, stream/river perennial, stream/river intermittent, or underground conduit) were given an FTYPE of Stream/River and an FCODE of Stream/River (46000). Water may or may not be present outside of rain events and may or may not exhibit channelization typically associated with streams. Those features are considered to be 'Unclassified Flowlines'. Records from the reprojected NHDFlowline feature class where FCODE = 46000 were extracted out of this dataset. All records from the source NHDFlowlines where FCODE 46000 can be found in this 'Classified Flowline' dataset." Download Esri shapefile: Water_Bodies_Flowlines_Classified_LocalRes.zipAccess FGDC metadata: Water_Bodies_Flowlines_Classified_LocalRes.html