U.S. Waterway Data Title

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Overview
The U.S. Waterway Data is a collection of data related to the navigable waters in the United States, including inland waterways, off-shore waters, the Great Lakes, and the Saint Lawrence Seaway. Data on commerce, facilities, locks, dredging, imports and exports, and accidents are included along with the geographic waterway network. The data were compiled from several agencies, including the U.S. Army Corps of Engineers Navigation Data Center, the U.S. Bureau of the Census, the U.S. Coast Guard, Oak Ridge National Laboratory, and Vanderbilt University. One of the objectives of this coordinated effort is to make waterway data more widely available and easily accessible.
The data included here are in standard file formats that can be easily imported into other software tools such as spreadsheets, databases, and Geographic Information Systems (GIS). Click on the subject areas in the left margin for a complete description of the data.

Goals and Objectives
The Navigation Data Center had several objectives in developing the U.S. Waterway Data. These objectives support the concept of a National Spatial Data Infrastructure (NSDI), which are to: Provide public access to national waterway data. Foster interagency and intra-agency cooperation through data sharing. Provide a mechanism to integrate waterway data (U.S. Army Corps of Engineers Port/Facility and U.S. Coast Guard Accident Data, for example) Provide a basis for intermodal analysis. Assist standardization of waterway entity definitions (Ports/Facilities, Locks, etc.). Provide public access to the National Waterway Network, which can be used as a basemap to support graphical overlays and analysis with other spatial data (waterway and modal network/facility databases, for example). Provide reliable data to support future waterway and intermodal applications.

Data Standardization TopTop
In support of the goals of a National Spatial Data Infrastructure (NSDI), an effort was made to standardize documentation. Documentation is provided for each data file (click on the subject areas in the left margin). Each documentation file contains database "pedigree" information, including (as applicable):
File Description
Abstract
Mode
Source of Data
Sponsoring Organization
Attributes
Geographic Coverage
Update Frequency
Data Quality/Accuracy
Number of Records
File Size
Data Format

Record layouts/data dictionaries are also provided in the documentation files. Record layouts include:
Field Names/Numbers
Field Description
Data Type
Field Length
Accepted Values
Comments/Remarks


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