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    • National Waterway Network Lines

    Metadata Updated: February 9, 2026

    The National Waterway Network Lines dataset is periodically updated by the United States Army Corp of Engineers (USACE) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The National Waterway Network (NWN) is a geographic database of navigable waterways and channels in and around the United States, for analytical studies of navigation performance, for compiling commodity flow statistics, and for mapping purposes. The NWN is comprised of a link database and a node database. Links are line strings, which consist of beginning and end points (nodes) with intermediate vertices (shape points). Links represent either actual shipping lanes (i.e., channels, Intracoastal Waterways, sea lanes, rivers) or serve as representative paths in open water (where no defined shipping paths exist). Nodes may represent physical entities such as river confluence's, ports/facilities, and intermodal terminals, USACE nodes, or may be inserted for analytical purposes (i.e., to facilitate routing). A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529053

    Access & Use Information

    Public: This dataset is intended for public access and use. License: us-pd

    Downloads & Resources

    Dates

    Metadata Created Date June 30, 2025
    Metadata Updated Date February 9, 2026

    Metadata Source

    Harvested from NGDA data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 30, 2025
    Metadata Updated Date February 9, 2026
    Publisher United States Army Corp of Engineers (USACE)
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=06037f2b23ff401aa1d379c2632a58f6&sublayer=1
    Data First Published 2022-08-26T15:06:51.000Z
    Data Last Modified 2025-10-09T18:04:18.349Z
    Category geospatial
    Public Access Level public
    Bureau Code 010:25
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id f9ceeca0-1fa9-4973-88e2-69462e62a934
    Harvest Source Id ec664cdf-15b6-4bb8-a524-640908ce4b82
    Harvest Source Title NGDA data.json
    Homepage URL https://ngda-transportation-geoplatform.hub.arcgis.com/datasets/usdot::national-waterway-network-lines
    License http://www.usa.gov/publicdomain/label/1.0/
    Metadata Type geospatial
    Old Spatial -180.0000,-56.0221,180.0000,72.1997
    Program Code 015:001
    Source Datajson Identifier True
    Source Hash 2782ffc7685889dc3c561312c2d3844adc5f4be36838ed3cb3c93d898119d46d
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -180.0000, -56.0221, -180.0000, 72.1997, 180.0000, 72.1997, 180.0000, -56.0221, -180.0000, -56.0221}
    Thumbnail thumbnail/NTAD_Logo_400x600.png

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