Water Feature Boundaries (National)

Metadata Updated: April 11, 2017

The hydro polygon/arc coverages (NTAD) were created using TIGER/LINE 2000 shapefile data gathered from ESRI's Geography Network. The individual county hydrography line shapefiles were processed into Arc/Info coverages and then appended together to create complete state coverages. They were then edited to remove unwanted features, leaving a state-by-state database of both important and navigable water features. Attributes were added to denote navigable features and names. Also, an attribute was added to the polygons to denote which were water and which were land features. The state databases were then appended together to create a single, nationwide hydrography network containing named arcs and polygons. These features also contain a state FIPS. Because some of the hydro features are represented by lines instead of polygons, the complete hydro dataset consists of 2 shapefiles, one for lines and one for polygons. They must be used together to paint a complete picture.

Access & Use Information

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Dates

Metadata Date November 8, 2016
Metadata Created Date April 11, 2017
Metadata Updated Date April 11, 2017
Reference Date(s) January 1, 2000 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from National Transportation Atlas Database (NTAD) Metadata

Additional Metadata

Resource Type Dataset
Metadata Date November 8, 2016
Metadata Created Date April 11, 2017
Metadata Updated Date April 11, 2017
Reference Date(s) January 1, 2000 (publication)
Responsible Party Office of the Assistant Secretary for Research and Technology/Bureau of Transportation Statistics (Point of Contact); U.S. Bureau of the Census (BOC) (Point of Contact)
Contact Email
Access Constraints Use Constraints: Acknowledgement of the Office of the Assistant Secretary for Research and Technology/Bureau of Transportation Statistics (BTS) National Transportation Atlas Databases (NTAD) would be appreciated in products derived from these data., Access Constraints: None
Bbox East Long 179.830623
Bbox North Lat 71.441056
Bbox South Lat 17.831509
Bbox West Long -179.252851
Coupled Resource
Frequency Of Update notPlanned
Guid
Harvest Object Id def6c3db-c4df-4ac6-bdba-7c90ebde42e9
Harvest Source Id cb3fd614-b933-4b6c-a804-65b87601cc3f
Harvest Source Title National Transportation Atlas Database (NTAD) Metadata
Licence None
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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