NRCS HUC 12
Ohio's watershed boundaries at the 12-digit level of the national hydrologic unit system, published by the USDA Natural Resources Conservation Service — roughly a local drainage area, and the finest standard national level.
- Published by
- ODOT Office of Environmental Services
- Source
- Ohio Department of Transportation TIMS
- Original data
- tims.dot.state.oh.us
- Terms of use
- Public information, no warranty (ODOT)
- On the map
- Areas
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What each record holds, as the publisher describes it: 18 fields.
| Field | Description |
|---|---|
ObjectID OBJECTID | |
TNMID | TNM ID |
MetaSourceID | Meta Source ID |
SourceDataDesc | Source Data Description |
SourceOriginator | Source Originator |
SourceFeatureID | Source Feature ID |
LoadDate | Load Date |
GNIS_ID | Unique identifier assigned by GNIS |
AreaAcres | Area of Hydrologic Unit measured in acres |
AreaSqKm | Area of Hydrologic Unit measure in square kilometeres |
States | States Hydrological Unit covers |
HUC12 | Twelve Digit Hydrologic Unit Code – Subwatershed level breakdown of the Watershed Boundary Dataset |
Name | Name of Hydrological Unit |
HUType | Hydrologic Unit type – Geomorphic and other considerations used to develop the hydrologic unit |
HUMod | A collection of two-character, uppercase abbreviation(s) for either (1) the type of modification to natural overland flow that alters the location of a Watershed boundary or (2) the special conditions GF-ground-water flow, GL-glacier, IF-ice field, OF-overbank flow, KA-karst, NC-noncontributing area, and IT-interbasin transfer |
ToHUC | To HUC |
NonContributingAcres | Area (in acres) that does not flow toward the outlet of a hydrologic unit. |
NonContributingSqKm | Area (in square kilometers) that does not flow toward the outlet of a hydrologic unit. |