Name: Marine Highways

Display Field: mh_id

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: The Marine Highways dataset was created on June 15, 2016 and was updated on September 10, 2025 by the U.S. Maritime Administration (MARAD) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The United States Marine Highway Program is a Maritime Administration-led program to expand the use of our Nation's navigable waterways to relieve landside congestion, reduce air emissions, and generate other public benefits by increasing the efficiency of the surface transportation system (https://www.maritime.dot.gov/grants/marine-highways/marine-highway). This dataset contains the locations of all 35 maritime routes that have been designated as Marine Highways by the Secretary of the U.S. Department of Transportation. Routes included in this dataset are diagrammatic and may not depict all waterways and port connectors that are considered to be part of the U.S. Marine Highway System. A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529036

Copyright Text: Acknowledgment to the U.S. Maritime Administration's (MARAD) Office of Policy and Plans, MARAD's Office of Ports and Waterways Planning, the U.S. Army Corps of Engineers, and the Bureau of Transportation Statistics (BTS) [distributor].

Min. Scale: 0

Max. Scale: 0

Default Visibility: false

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -173.746484325991
YMin: -17.5550053916854
XMax: 145.980794182406
YMax: 72.1997196018782
Spatial Reference: 4326 (4326)

Drawing Info:

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HasZ: true

HasM: true

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• mh_id (type: esriFieldTypeString, alias: mh_id, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• route_spon (type: esriFieldTypeString, alias: route_spon, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• route_desi (type: esriFieldTypeString, alias: route_desi, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• landside_r (type: esriFieldTypeString, alias: landside_r, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• route_desc (type: esriFieldTypeString, alias: route_desc, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• route_leng (type: esriFieldTypeInteger, alias: route_leng, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: Marine Highways
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 7/21/2026 7:30:13 PM

Schema Last Edit Date: 7/21/2026 7:30:13 PM

Data Last Edit Date: 7/21/2026 7:30:13 PM

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