WBD_HU10: Ten-Digit Hydrologic Unit

HU 10's have a 10-digit Hydrologic Unit Code and represent the 5th level of division of the WBD.

 


This graphic shows an example of HU-10 Boundaries. Each Hydrologic Unit is labeled with its 10-digit HUC
 
HU_10 Data Dictionary

Field Name

Definition

Comments

Gaz_ID

Unique identifier assigned by GNIS, length 10.

 

Area_Acres

 

 

Area_SqKm

 

 

States

 

 

LoadDate

 

 

HUC_10

Numeric identifier for each level (2,4,6,8,10, and 12) of hydrologic units

 

HU_10_Name

Name assigned to each level (2,4,6,8,10, and 12) of hydrologic units

 

HU_10_Type

Geomorphic and other considerations used to  develop the hydrologic unit.

 

See

ftp://ftp-fc.sc.egov.usda.gov/

NCGC/products/watershed/hu-standards.pdf

for domain of values

HU_10_Mod

A 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.

See

ftp://ftp-fc.sc.egov.usda.gov/

NCGC/products/watershed/hu-standards.pdf

for domain of values

HU_2s are not included with the data

HU_14 and HU_16 are included only where created by local stewards.