Stream Order
Ohio's streams and rivers as a connected network, from the US Geological Survey's National Hydrography Dataset, with the Strahler stream order that places each reach in the drainage network — higher orders sit further downstream and tend to be larger channels. Use it to find the waterways a project crosses or drains into.
- Published by
- US EPA
- Source
- Ohio Department of Transportation TIMS
- Original data
- tims.dot.state.oh.us
- On the map
- Lines
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Ohio portion of the National Hydrography Dataset (NHD) Flowline mapped at 1:100,000 scale. More information and downloads available at https://www.epa.gov/waterdata/get-nhdplus-national-hydrography-dataset-plus-data and https://www.usgs.gov/national-hydrography/national-hydrography-dataset.
Fields
What each record holds, as the publisher describes it: 66 fields.
| Field | Description |
|---|---|
COMID | Common identifier of the NHD feature |
FDATE | Date of last feature modification. |
RESOLUTION | Code for source resolution: local, high, medium. Always "Medium" (i.e., 1:100K scale) |
GNIS_ID | Unique identifier assigned by Geographic Names Information System. |
GNIS_NAME | Proper name, specific term, or expression by which a particular geographic entity is known. |
LENGTHKM | Length of linear feature, Albers Equal Area Conic. |
REACHCODE | Unique identifier composed of two parts. The first eight digits are the subbasin code defines by FIPS 103, next six digits is a randomly assigned sequential number unique within a Cataloging Unit. |
FLOWDIR | Direction of flow relative to coordinate order. |
WBAREACOMI | ComID of an NHD polygonal water feature through which an NHD "Artificial Path" flowline flows |
FTYPE | Three-digit integer value, unique identifier of a feature type. |
FCODE | Five-digit integer value comprised of the feature type and combinations of characteristics and values. |
ENABLED | Always "True" |
STREAMLEVE | Drain_level of the downstream mainstem drain |
STREAMORDE | Strahler stream order number for the drain. |
FROMNODE | Nationally unique ID for the "from" node endpoint of the drain. |
TONODE | Nationally unique ID for the "to" node endpoint of the drain. |
HYDROSEQ | Hydrologic sequence number |
LEVELPATHI | Hydrologic sequence number of most downstream flowline in level path |
PATHLENGTH | Distance to terminal flowline downstream along the mainpath (kilometers) |
TERMINALPA | Hydrologic sequence number of terminal flowline |
ARBOLATESU | An estimate of miles of stream upstream of a flowline. |
DIVERGENCE | Stream divergence coded value |
STARTFLAG | Headwater coded value |
TERMINALFL | Terminal flowline coded value |
DNLEVEL | Streamlevel of mainstem downstream flowline |
THINNERCOD | Ordinal value used to display various network densities |
UPLEVELPAT | Upstream mainstem level path identifier |
UPHYDROSEQ | Upstream mainstem hydrologic sequence number |
UPMINHYDRO | Upstream minimum hydrologic sequence number |
DNLEVELPAT | Downstream mainstem level path identifier |
DNMINHYDRO | Downstream minor path hydrologic sequence number |
DNDRAINCOU | Number of flowlines immediately downstream |
CUMDRAINAG | Cumulative drainage area in square kilometers(sq km) at bottom of flowline |
MAFLOWU | Mean Annual Flow in cubic feet per second (cfs) at bottom of flowline as computed by Unit Runoff Method |
MAFLOWV | Mean Annual Flow (cfs) at bottom of flowline as computed by Vogel Method. |
MAVELU | Mean Annual Velocity (fps) at bottom of flowline as computed by Jobson Method (1996) using the flow in MAFlowU. |
MAVELV | Mean Annual Velocity (fps) at bottom of flowline as computed by Jobson Method (1996) using the flow in MAFlowV. |
INCRFLOWU | Incremental Flow (cfs) for Flowline as computed by the Unit Runoff Method |
MAXELEVRAW | Maximum elevation (unsmoothed) in meters |
MINELEVRAW | Minimum elevation (unsmoothed) in meters |
MAXELEVSMO | Maximum elevation (smoothed) in meters |
MINELEVSMO | Minimum elevation (smoothed) in meters |
SLOPE | Slope of flowline (m/m) |
CUMNLCD_11 | % of cumulative drainage area classified as Open Water in NLCD |
CUMNLCD_12 | % of cumulative drainage area classified as Perennial Ice/Snow in NLCD |
CUMNLCD_21 | % of cumulative drainage area classified as Low Intensity Residential in NLCD |
CUMNLCD_22 | % of cumulative drainage area classified as High Intensity Residential in NLCD |
CUMNLCD_23 | % of cumulative drainage area classified as Commercial/Industrial/Transportation in NLCD |
CUMNLCD_31 | % of cumulative drainage area classified as Bare Rock/Sand/Clay in NLCD |
CUMNLCD_32 | % of cumulative drainage area classified as Quarries/Strip Mines/Gravel Pits in NLCD |
CUMNLCD_33 | % of cumulative drainage area classified as Transitional in NLCD |
CUMNLCD_41 | % of cumulative drainage area classified as Deciduous Forest in NLCD |
CUMNLCD_42 | % of cumulative drainage area classified as Evergreen Forest in NLCD |
CUMNLCD_43 | % of cumulative drainage area classified as Mixed Forest in NLCD |
CUMNLCD_51 | % of cumulative drainage area classified as Shrubland in NLCD |
CUMNLCD_61 | % of cumulative drainage area classified as Orchards/Vineyards/Other in NLCD |
CUMNLCD_71 | % of cumulative drainage area classified as Grasslands/Herbaceous in NLCD |
CUMNLCD_81 | % of cumulative drainage area classified as Pasture/Hay in NLCD |
CUMNLCD_82 | % of cumulative drainage area classified as Row Crops in NLCD |
CUMNLCD_83 | % of cumulative drainage area classified as Small Grains in NLCD |
CUMNLCD_84 | % of cumulative drainage area classified as Fallow in NLCD |
CUMNLCD_85 | % of cumulative drainage area classified as Urban/Recreational Grasses in NLCD |
CUMNLCD_91 | % of cumulative drainage area classified as Woody Wetlands in NLCD |
CUMNLCD_92 | % of cumulative drainage area classified as Emergent Herbaceous Wetlands in NLCD |
PRECIP | Area Weighted Mean Annual Precipitation at bottom of flowline in mm |
HUC8 | 8-Digit Hydrolgic Unit Code (sub-basin) |