FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
VERSION 2006

TITLE: HISTORIC BRIDGES

Geodataset Name:       SHPO_BRIDGES_OCT06
Geodataset Type:       SHAPEFILE
Geodataset Feature:    Polyline
Feature Count:         517
GENERAL DESCRIPTION:
This data set contains historic bridge locations and basic bridge attributes as recorded at the Florida Master Site File.
DATA SOURCE(S):                    Bureau of Archaeological Research
SCALE OF ORIGINAL SOURCE MAPS:     24000
DATE OF AUTOMATION OF SOURCE:      20061001
GEODATASET EXTENT:                 State of Florida

FEATURE ATTRIBUTE TABLES:

Datafile Name: SHPO_BRIDGES_OCT06.DBF
ITEM NAME WIDTH TYPE
OBJECTID
4 OID
SITEID
8 String
SITENAME
40 String
SURVEYNUM
5 String
FDOTNUM
7 String
YEARBUILT
5 String
CONDITION
12 String
LENGTH
5 String
ENGINEERS
70 String
OWNERSHIP
35 String
DESIGN1
40 String
DESIGN2
40 String
MATERIAL1
20 String
MATERIAL2
20 String
INUSE
4 String
D_NRLISTED
8 Date
SHPOEVAL
30 String
DESCRIPT
40 String
FGDLAQDATE
8 Date
SHAPE
4 Geometry
AUTOID
4 Integer
SHAPE.LEN
0 Double

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item
Item Description
OBJECTID Internal feature number.

SITEID This is the official state site number assigned by the Florida Master Site File. The state site number is an eight character string containing a two character county code, a five character numeric code, and an optionalsingle letter character suffix (suffix letter is generally used to indicate sites that are functionally or spatially related).

SITENAME The bridge name as recorded at the Florida Master Site File. This is usually the principal or best known name for a cultural resource.

SURVEYNUM The serial number assigned by the Site File to the manuscript produced by the project which identified or reexamined the cultural resource. Not all bridges have an associated report or manuscript.

FDOTNUM The FDOT number is six positions in length, with the first two numbers as the defining code for the county. The remaining four positions are used as a unique number for the bridge within the county. A zero value for this field indicates there is no FDOT number for the bridge.

YEARBUILT The initial date of the bridge's physical construction. A value of 'UNKN'for this field indicates the year of construction is unknown.

CONDITION The overall condition of the bridge.

LENGTH Overall length of the bridge in feet.

ENGINEERS The primary designers/engineers of the bridge if known.

OWNERSHIP Ownership type.

DESIGN1 Bridge design.

DESIGN2 Additional bridge design.

MATERIAL1 Construction material.

MATERIAL2 Construction material.

INUSE Indicates whether or not the bridge is currently in service.
YES = for in service.

NO = for not in service.

Blank = if not recorded.


D_NRLISTED Date that the site was officially listed on the National Register of HistoricPlaces (NRHP). The field is blank if the FMSF database does not indicate the property is National Register listed.

SHPOEVAL Evaluation of Florida's State Historic Preservation Officer (SHPO) concerning the eligibility of the resource for listing on the National Register of Historic Places. In Florida, the SHPO is the Director of the Division of Historical Resources, acting through staff in the Bureau of Historic Preservation (BHP). Generally the Site File database only contains evaluations made by the Compliance Review staff of BHP. Some properties may be listed on the NRHP without having been reviewed by Compliance Review staff. Therefore, an NR list date (indicating a property is NR listed) takes priority over a 'Not Evaluated by SHPO' value in this field. Values in this field are limited to a discrete list of possibilities used in the Site File database lookup table. Contact the Site File for more information.

DESCRIPT Based on SITENAME

FGDLAQDATE Date FGDL obtained data from source.

SHAPE Feature geometry.

AUTOID Unique ID added by GeoPlan

SHAPE.LEN Length in meters


USER NOTES:
This data is provided 'as is'. GeoPlan relied on the integrity
of the original data layer's topology
This data is provided 'as is' by GeoPlan and is complete to our
knowledge.
GeoPlan relied on the integrity of the attribute information within
the original data.

The data was created to serve as base information for use in GIS 
systems for a variety of planning and analytical purposes.

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

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

THE DATA INCLUDED IN FGDL ARE 'AS IS' AND SHOULD NOT BE CONSTRUED
AS LEGALLY BINDING. 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:
http://geoplan.ufl.edu/education.html

REFERENCES:
Bureau of Archaeological Research

DATA LINEAGE SUMMARY:
This data was originally created by the Division of Historical 
Resources. This data layer is maintained by on-screen (heads-up) 
digitizing bridge locations in ESRI ArcMap.  Scanned, georeferenced, 
1:24,000 scale USGS quadrangles in geographic coordinates 
(lat./long., NAD27) are used as the background reference images.
Process Date: Unknown

When received, the data was in the following projection: Geographic, Datum: NAD27, Spheroid: Clarke 1866, Units: Decimal Degrees. The shapefile was projected to FGDL Albers HPGN (See "Map Projection Parameters" below) in ArcToolBox using the Florida HARN Transformation. -Reprojected to FGDL Albers HPGN -Added DESCRIPT field based on SITENAME to attribute table -Added fields FGDLAQDATE -Upcased all items in the attribute table -Changed file name to shpo_bridges from HistoricalBridges Process Date: 20061025
MAP PROJECTION PARAMETERS:

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

DATA SOURCE CONTACT (S):

Name:
Abbr. Name:
Address:


Phone:

Web site:
E-mail:
Contact Person:
         Phone:
        E-mail:
Bureau of Archaeological Research
BAR
R. A. Gray Building, 500 South Bronough St.
Tallahassee, FL
32399-0250
(850) 245-6440

Server=etdmsde.fla-etat.org; Service=5151; User=etat; Version=SDE.DEFAULT fmsfile@dos.state.fl.us Vincent Birdsong or Dr. Marion Smith

FGDL CONTACT:
Name:                   FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name:             FGDL
Address:                Florida Geographic Data Library
                        431 Architecture Building
                        PO Box 115706
                        Gainesville, FL  32611-5706
Web site:               http://www.fgdl.org

Contact FGDL: 

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