Geodataset Name:       BTSWW_2011
Geodataset Type:       SHAPEFILE
Geodataset Feature:    Polyline
Feature Count:         419
The National Waterway Network is a comprehensive network database of the nation's navigable waterways. This is the Florida subset of the National Waterway Network that covers the 48 contiguous states plus the District of Columbia, Hawaii, Alaska, Puerto Rico and water links between. The nominal scale of the dataset varies with the source material. The majority of the information is at 1:100,000 with larger scales used in harbor/bay/port areas and smaller scales used in open waters. This is an update to the btsww 2010 layer.
DATA SOURCE(S):                    U.S. Army Corps of Engineers, Navigation Data Center
GEODATASET EXTENT:                 State of Florida
PUBLICATION DATE: 2011 TIME PERIOD OF CONTENT: 2011 DOWNLOAD LINK: http://www.fgdl.org/metadataexplorer/explorer.jsp


Datafile Name: BTSWW_2011.DBF
4 Geometry
8 Double
8 Double
8 Double
8 Double
8 Double
35 String
35 String
8 Double
8 Double
8 Double
1 String
6 String
10 String
8 Double
10 String
1 String
2 String
4 Integer
15 String
4 Integer
3 String
8 String
1 String
2 String
2 String
2 String
2 String
2 String
31 String
36 Date
4 Integer
0 Double


Item Description
OBJECTID Internal feature number.

Shape Feature geometry.
Polyline = Polylinear shapes as defined by ArcView

ID Unique Link identification number

LENGTH Link length in Miles
real = with one explicit decimal place

FEATURID Unique Identifier

ANODE Identifies a record (NODEID) in the node file that corresponds to the starting position of the link

BNODE Identifies a record (NODEID) in the node file that corresponds to the ending position of the link

LINKNAME USACE link description

RIVERNAME Name of the water that the object belong to.

AMILE Milepost at the ANODE, inland Corps links, only

BMILE Milepost at the BNODE, inland Corps links, only

LENGTH1 Line length, in miles

LENGTH_SRC Indication of how the length was calculated
V = Vanderbilt; length was calculated using GIS software

M = Milepoints; length was calculated by subtracting 'B' milepoint from 'A' milepoint

SHAPE_SRC Indicates the data source used for each link
CM = Corps Milepoints

DD = Digitized from 1:100K DLGs (CD-ROM)

DN = Digitized from NOAA Charts

DQ = Digitized from 1:100K USGS Quads

J = Rough shape (guessed)

JR = Original shape modified by ORNL

JV = Original shape modified by Vanderbilt

M = Missing / Unknown

NA = Digitized from 1:2M National Atlas Points

RR = ORNL link modified by ORNL

RV = ORNL link modified by Vanderbilt

VR = Vanderbilt link modified by ORNL

LINKTYPE Indicates the originator of the link or the type of feature represented by the link
CORPS = Corps of Engineers original link

CWIS = Corps of Engineers civil works improvement addition

ORNL = Oak Ridge National Laboratory

VANDERBUILT = Vanderbilt University

LOCK = Corps of Engineers lock

CTRL_DEPTH Control depth of link, in feet, Corps links only

WATERWAY 4-digit waterway code from Corps Master_port_waterway

GEO_CLASS Geographic Class
G = Great Lakes

O = Ocean / Offshore

I = Inland

FUNC_CLASS Functional Class
N = no traffic, non-navigable

S = shallow draft (i.e., no deep draft ocean vessels)

D = deep draft

B = Both

U = special vessels only (fishing, pleasure craft, etc; normally no freight traffic)

WTWY_TYPE Waterway Type
1 = Harbor (including harbor channels), Bay

2 = Intracoastal Waterway

3 = Sealane

4 = Sealane with separation zone

5 = Open water

6 = River, creek, thoroughfare, lake

7 = Estuary

8 = Channel (not including harbor channels)

9 = Canal

10 = Great Lakes direct link (major ports)

11 = Great Lakes indirect link

12 = Corps of Engineers Lock

CHART_ID 4 or 5 digit NOAA chart number or 15 character 1:100K USGS Quad Map ID

NUM_PAIRS Number of coordinate pairs that make up the link

WHO_MOD Composite code designating what organization modified the link
V = Vanderbilt addition

R = Oak Ridge addition

J = guessed

H = screen digitization from DLGs or TIGER

1 = 94 May

2 = 94 June

R = attributes modified by ORNL

A = attributes modified by Vanderbilt

DATE_MOD The MODDATE (or modification date)indicates when each record in the database was last changed. As changes are made to a record, the modification date is entered in the format 'mmddyyy'.

HEADING Compass Direction
N = North

S = South

E = East

W = West

STATE State Postal Abbreviation

FIPS Primary State FIPS Code

FIPS2 State FIPS Code

NON_US Abbreviation for non-US areas
AC = Arctic Ocean

AT = Atlantic Ocean

BS = Bering Sea

CB = Caribbean Sea

CD = Canada

GM = Gulf of Mexico

PC = Pacific Ocean

PM = Panama

XX = Unidentified Area

VERSION The VERSION is a 2-digit number that will be incremented for all records in the database whenever a new release is distributed.

DESCRIPT GeoPlan added field based on RIVERNAME.

FGDLAQDATE The date GeoPlan acquired the data from the source.

AUTOID Unique ID added by GeoPlan

SHAPE.LEN Length in meters

RITA/BTS quality checks were completed to cross reference the dataset 
with the state dataset to determine if the spatial data and attribute data 
were accurate within each state
This data is provided 'as is' by GeoPlan and is complete to our
GeoPlan relied on the integrity of the attribute information within
the original data.
The National Waterway Network was created on behalf of the Bureau 
of Transportation Statistics, the U.S. Army Corps of Engineers, the U.S. 
Bureau of Census, and the U.S. Coast Guard by Vanderbilt University 
and Oak Ridge National Laboratory.  Additional agencies with input into 
network development include Volpe National Transportation Systems 
Center, Maritime Administration, Military Traffic Management Command, 
Tennessee Valley Authority, U.S. Environmental Protection Agency, and 
the Federal Railroad Administration.

Links in the waterway network represent actual shipping lanes 
or serve as representative paths in open water where no 
defined shipping lanes exist.  Nodes may represent physical 
entities such as river confluences, ports/facilities, and 
intermodal terminals, US Army Corps of Engineers (USACE 
nodes), or may be inserted for analytical purposes. Approximately 
180 USACE ports are geo-coded in the node database.

The National Transportation Atlas Database is a set of nationwide geographic 
databases of transportation facilities, transportation networks, and associated 
infrastructure. These datasets include spatial information for transportation 
modal networks and intermodal terminals, as well as the related attribute 
information for these features. Metadata documentation, as prescribed by the 
Federal Geographic Data Committee, is also provided for each database. The 
data support research, analysis, and decision-making across all modes of 
transportation. They are most useful at the national level, but have major 
applications at regional, state, and local scales throughout the transportation 

The National Waterway Network 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.

The "shape source" field in the link database, and the "node source" field in the 
node database indicate the data sources used to derive link and node placements. 
The accuracy of each network element is correlated to the data source used to 
derive that element.  For example, links and nodes derived from 1:100,000 scale 
DLGs are more accurate than links and nodes derived from 1:500,000 scale NOAA 
Navigational Charts. Links with unknown/missing sources are usually schematic 
representations of USACE links. Off-Shore:  NOAA Charts vary in scale.  Larger scale 
charts were used in harbor/port areas, while smaller scale charts were used in open 
water. For channels, sea lanes, and Intracoastal Waterways, shape points were 
placed as needed to ensure that link segments fall within waterway boundaries.
Inland:  Links digitized from 1:100,000 DLG files, or large scale NOAA charts are the 
most accurate representations.  Shape points were placed as needed to ensure that 
link segments fall between waterway shorelines.  Links derived from Corps milepoints 
have shape points approximately one mile apart.  The Corps milepoints were mainly 
derived from 1:24,000 and 1:100,000 scale maps. Therefore, the shape points derived 
from Corps milepoints are often as accurate as shape points derived from 1:100,000 
DLG files.  However, line segments connecting the shape points may not accurately 
represent the curvature of the waterway.

This data is provided 'as is' and its vertical positional accuracy
has not been verified by GeoPlan

Acknowledgment of Research and Innovative Technology Administration's 
Bureau of Transportation Statistics (RITA/BTS) National Transportation Atlas 
Databases (NTAD) 2011 would be appreciated in products derived from 
these data.

The Florida Geographic Data Library is a collection of Geospatial Data
compiled by the University of Florida GeoPlan Center with support from
the Florida Department of Transportation. GIS data available in FGDL is
collected from various state, federal, and other agencies (data sources)
who are data stewards, producers, or publishers. The data available in
FGDL may not be the most current version of the data offered by the
data source. University of Florida GeoPlan Center makes no guarantees
about the currentness of the data and suggests that data users check
with the data source to see if more recent versions of the data exist.

Furthermore, the GIS data available in the FGDL are provided 'as is'.
The University of Florida GeoPlan Center makes no warranties, guaranties
or representations as to the truth, accuracy or completeness of the data
provided by the data sources. The University of Florida GeoPlan Center
makes no representations or warranties about the quality or suitability
of the materials, either expressly or implied, including but not limited
to any implied warranties of merchantability, fitness for a particular
purpose, or non-infringement. The University of Florida GeoPlan Center
shall not be liable for any damages suffered as a result of using,
modifying, contributing or distributing the materials.

A note about data scale: 

Scale is an important factor in data usage.  Certain scale datasets
are not suitable for some project, analysis, or modeling purposes.
Please be sure you are using the best available data. 

1:24000 scale datasets are recommended for projects that are at the
county level.
1:24000 data should NOT be used for high accuracy base mapping such
as property parcel boundaries.
1:100000 scale datasets are recommended for projects that are at the
multi-county or regional level.
1:125000 scale datasets are recommended for projects that are at the
regional or state level or larger.

Vector datasets with no defined scale or accuracy should be
considered suspect. Make sure you are familiar with your data
before using it for projects or analysis. Every effort has been
made to supply the user with data documentation. For additional
information, see the References section and the Data Source Contact
section of this documentation. For more information regarding
scale and accuracy, see our webpage at:

National Transportation Atlas Database:

Bureau of Transportation Statistics:

Extraction of spatial and type attributes for waterway features from NA, DLG and TIGER
Process Date: 1994

Specification of offshore, coastal and Great Lake network nodes and links on NOAA, followed by direct digitization of specified nodes and links. Process Date: 1995
Merging of inland and offshore waterway networks. A specialized program was written to merge the two networks. In general, Vanderbilt node locations were accepted as authoritative when both data sets had the same elements. This meant moving an Oak Ridge link incident to that node. If the link was classified geographically ocean or Great Lakes, and a Vanderbilt link or chain existed with the same ID and endpoints, the Oak Ridge link was discarded, after transfer of Oak Ridge attributes. If the Oak Ridge link was within 2 km of the new end nodes' location: and 1) if a duplicate Vanderbilt link existed with a higher source code, it replaced the Oak Ridge link, or 2) the Oak Ridge link was moved by a logistic adjustment to the new location. (This causes modest disruption to the preponderance of the shape, yet assured that the angle of approach to the displaced end node location was preserved.) If the link was functionally classed "deep draft" and a duplicate Vanderbilt link had an authoritative source code, the Oak Ridge link was replaced. Otherwise an additional shape point was added at the end to snap to the new node location without disrupting the original link shape. If the link had a Vanderbilt duplicate with the same ID, the Oak Ridge link was so flagged to be manually resolved. The composite network was then cleaned manually, resolving all cases of still remaining duplicate links and deciding case-by-case how to smooth or otherwise accommodate a highly displaced Oak Ridge shape into the Vanderbilt digitized node location, using TIGER shorelines as a background. Process Date: 1994
Heads-up digitizing of WWAY10 to add shape points to inland waterways where straight links still existed. Incorporation of comments from users (Vanderbilt, ORNL, and USACE Waterborne Commerce Statistics Center) of WWAY10 and error correction. Process Date: 1995
Upgrades to link shape and attribute data based on information from US Army Corps of Engineers CWIS projects as published in their digital projects notebook. Includes the addition of new links, removal of unnecessary links/nodes, and splitting of links to more effectively relate the digital waterway network to the physical network as maintained by the Corps of Engineers. Process Date: 1999
In July 2011 Geoplan obtained the data from the Bureau of Transportation Statistics (BTS) in CDROM format. The data was in the following geographical coordinate system: WGS 1984 Datum, Units: Degrees. During the QA/QC process GeoPlan performed the following tasks. -Extracted features where "FIPS" = '12' to select features in Florida. -Hand selected additional features within Florida's purview not included in the previous selection step. -Reprojected the data to FGDL Albers HPGN. -Uppercased all fields. -Added DESCRIPT field based on RIVERNAME. -Added FGDLAQDATE field based on the date GeoPlan received the data from the source. -Renamed the dataset from waterway to btsww_2011 Process Date: 20110721

Projection                          ALBERS
Datum                               HPGN
Units                               METERS
Spheroid                            GRS1980
1st Standard Parallel               24  0  0.000
2nd Standard Parallel               31 30  0.000
Central Meridian                   -84 00  0.000
Latitude of Projection's Origin     24  0  0.000
False Easting (meters)              400000.00000
False Northing (meters)             0.00000


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Web site:
Contact Person:
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1200 New Jersey Ave. SE
Washington, DC

http://www.bts.gov/programs/geographic_information_services/ answers@bts.gov Office of Geospatial Information Systems

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