National Waterway Network. Waterway Mile Marker Database. Waterway Network Link Commodity Data.

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1 National Waterway Network. Waterway Mile Marker Database. Waterway Network Link Commodity Data. Comments or Questions Contact: WCSC (504) , or (504)

2 NDC - U.S. Waterway Data - National Waterway Network National Waterway Network File Description: The National Waterway Network (NWN) is a geographic database of navigable waterways in and around the United States, for analytical studies of waterway performance, for compiling commodity flow statistics, and for mapping purposes. Abstract The National Waterway Network 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, sealanes, 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). The NWN databases were developed by Oak Ridge National Laboratory (ORNL) and Vanderbilt University, with input from the National Waterway GIS Design Committee (NWGISDC). The NWGISDC contains members from several agencies, including the U.S. Army Corps of Engineers (USACE), USDOT Bureau of Transportation Statistics (BTS), Volpe National Transportation Systems Center (VNTSC), Maritime Administration (MARAD), Military Traffic Management Command (MTMC), Tennessee Valley Authority (TVA), U.S. Environmental Protection Agency (EPA), U.S. Bureau of Census, U.S. Coast Guard, and the Federal Railroad Administration (FRA). Several data sources were used to create the network. Therefore, network links vary in scale. The majority of the inland links are at 1:100,000 scale(derived from 1:100,000 scale Digital Line Graph files). Off-shore links were derived from variable scale NOAA Navigational Charts. Therefore, the off-shore links vary in scale, with larger scale NOAA charts used in harbor/bay/port areas, and smaller scale NOAA charts used in open waters. All links in the USACE (non geo-coded) Waterway Link Network are represented in the NWN. The USACE network was used as a base for the NWN; "USACE links" form a contiguous subset within the NWN, and can be extracted through queries on the "link number" (linknum) field in the link database (where linknum< ). Additional (non- USACE) links and nodes were added to the USACE network to more realistically represent shipping patterns. Approximately 200 USACE ports are geo-coded in the node database, including the top 150 ports. ORNL initially developed databases for the inland waterways; Vanderbilt constructed databases for the off-shore waterways. ORNL then merged the inland and off-shore databases to form a continuous national network. Vanderbilt revised the inland waterway network through use of USGS Digital Line Graph (DLG) files. Vanderbilt, ORNL, and the U.S. Army Corps of Engineers Waterborne Commerce Statistics Center (WCSC) are continuously enhancing and performing validation tasks to improve the accuracy of the NWN.

3 NDC - U.S. Waterway Data - Waterway Mile Marker Database Waterway Mile Marker Database File Description: Sequential mile positions of navigable inland waterways and the Gulf Intracoastal Waterway. Abstract Contains 11,261 sequential mile positions of navigable inland waterways and the Gulf Intracoastal Waterway. Records include eight fields; id, latitude, longitude, mile, river code, river name, river number, source. Mode Water Source of Data This was a joint effort of the Navigation Data Center and Waterborne Commerce Statistics Center and the Defense Mapping Agency using the USACE district chart books, USGS 1:24000 topographic quadrangle maps, IENC, MVN, and NENC nautical charts of varying scales. Sponsoring Organization U.S. Army Corps of Engineers/CEIWR, Navigation Data Center and Waterborne Commerce Statistics Center Attributes Geographic Coverage of Data: U.S. navigable inland waterways and the Gulf Intracoastal Waterway Data quality/accuracy: 60% of the data was extracted from IENC and 20% USGS 1:24000 topographic quadrangle map sheets which have 1 meter accuracy. 5% of the data was extracted from NOAA nautical charts which have roughly the same accuracy depending on the scale. The remainder of the data was interpolated onto the USGS quadrangle map sheets using the USACE district chart books. The interpolated miles have accuracy of approximately 100 meters. First Developed: 1994 Update Frequency: Continuosly upon review or request Number of Records: 11,261 File Size: 1,406,464 bytes File Format: ASCII Comma Delimited,dbf and Spreadsheet Maximum Characters per Record: 68 Media: CD, disk, tape, hardcopy

4 NDC - U.S. Waterway Data - Waterway Mile Marker Database Waterway Mile Marker Database Data Dictionary RECORD LAYOUT: FIELD TYPE WIDTH DEFINITION 1. ID INTEGER 7 RECORD ID 2. LATITUDE INTEGER 10 MILE MARKER LONGITUDE IN DECIMAL 3. LONGITUDE INTEGER 10 MILE MARKER LATITUDE IN DECIMAL 4. MILE INTEGER 4 MILE ALONG RIVERWAY 5. RIVERCD TEXT 2 RIVER NUMBER (2 CHAR RIVER CODE ) 6. RIVER NAME TEXT 35 NAME OF RIVER OR RIVER SEGMENT 7. RIVERNO TEXT 2 RIVER CODE (2 DIGIT RIVER ID NUMBER) 8. SOURCE TEXT 4 NAME OF SOURCE (IENC OR NENC OR MVN) Contact for Additional Information: U.S. Army Corps of Engineers CEIWR-WCSC 7400 Leake Road. New Orleans, Louisiana Point of Contact: WCSC (504)

5 NDC - U.S. Waterway Data - Waterway Network Link Commodity Data Waterway Network Link Commodity Data Abstract The National Waterway Network 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, sealanes, rivers) or serve as representative paths in open water (where no defined shipping paths exist). Tonnage is summarized for each link by commodity and direction (up bound and down bound). The commodities include: Coal Petroleum Products Chemicals Crude Materials Manufactured Goods Farm Products Machinery Waste Unknow Mode Water Source of Data Domestic Data Source: Companies operating commercial vessels on U.S. navigable waters. Foreign Data Source: U.S. Bureau of the Census, who processes U.S. customs import and export data. These data are then routed from origin to destination so that through traffic for waterways and links can be computed. Sponsoring Organization U.S. Army Corps of Engineers, Navigation Data Center, Waterborne Commerce Statistics Center. Attributes Geographic Coverage of Data: U.S. Inland and Coastal Waterways Update Frequency: Continuously reported by the companies Data quality/accuracy: WCSC, the U.S. Bureau of the Census, and U.S. Customs perform multiple edits and data checks to ensure accurate data. Number of Records: 2,991 Contact for Additional Information: Waterborne Commerce Statistics Center PO BOX New Orleans, LA Point of Contact: WCSC Tel. (504) or (504) Fax. (504)

6 NDC - U.S. Waterway Data - Waterway Network Link Data Dictionary Waterway Network Link Commodity Data Data Dictionary FIELD FIELD NAME DESCRIPTION DATA TYPE(LEN) 1 LINK Link Number integer(7) 2 TOTALUP Total Upbound Tonnage integer(10) 3 TOTALDOWN Total Downbound Tonnage integer(10) 4 COALUP Coal Upbound integer(10) 5 COALDOWN Coal Downbound integer(10) 6 PETROLUP Petroleum Products Upbound integer(10) 7 PETROLDOWN Petroleum Products Downbound integer(10) 8 CHEMUP Chemicals Upbound integer(10) 9 CHEMDOWN Chemicals Downbound integer(10) 10 CRMATUP Crude Materials Upbound integer(10) 11 CRMATDOWN Crude Materials Downbound integer(10) 12 MANUUP Manufactured Goods Upbound integer(10) 13 MANUDOWN Manufactured Goods Downbound integer(10) 14 FARMUP Farm Products Upbound integer(10) 15 FARMDOWN Farm Products Downbound integer(10) 16 MACHUP Machinery Upbound integer(10) 17 MACHDOWN Machinery Downbound integer(10) 18 WASTEUP Waste Upbound integer(10) 19 WASTEDOWN Waste Downbound integer(10) 20 UNKWNUP Unknown Upbound integer(10) 21 UNKWNDOWN Unknown Downbound integer(10) Contact for Additional Information: U.S. Army Corps of Engineers Waterborne Commerce Statistics Center PO BOX New Orleans, LA Point of Contact: WCSC Tel. (504) or (504)