Lancaster County - Bridges


Identification_Information:
Citation:
Citation_Information:
Originator:Lancaster County GIS
Publication_Date:200812
Title:
Lancaster County - Bridges
Geospatial_Data_Presentation_Form:vector digital data
Other_Citation_Details:
This data was originally published in 1993 and created photogrammetrically by Aerial Data Reduction Associates, Inc. Updated countywide with 1998 photography by Aerial Data Reduction Associates, Inc. In 2005 covered and non-covered bridges were combined into on dataset.
Online_Linkage: http://www.pasda.psu.edu/
Description:
Abstract:
This layer consists of polygons representing bridges in Lancaster County.  It contains both covered and non-covered bridges.
Purpose:
Intended for use at 1:2400 or smaller scale. For educational/demonstration purposes only.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:200812
Currentness_Reference:
ground condition
Status:
Progress:Complete
Maintenance_and_Update_Frequency:Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-76.722888
East_Bounding_Coordinate:-75.898884
North_Bounding_Coordinate:40.315260
South_Bounding_Coordinate:39.720830
Keywords:
Theme:
Theme_Keyword_Thesaurus:ISO 19115 Topic Categories
Theme_Keyword:Bridges
Theme_Keyword:Covered Bridges
Theme_Keyword:transportation
Place:
Place_Keyword:Lancaster County
Place_Keyword:Pennsylvania
Access_Constraints:Access to this data is limited to internal use with Lancaster County government and to those who have signed the Lancaster County GIS data license agreement.
Use_Constraints:
The Originator, Publisher and Distributor exclude any and all implied warranties and make no warranty or representation with respect to the data files or accompanying documentation, including quality, performance, merchantability or fitness for a particular purpose. These data files and documentation are provided 'as is' and the User assumes the entire risk as to their quality and performance 

These data are not to be redistributed for commercial profit. Reproduction or redistribution of this digital data set without permission of the Originator/Publisher is expressly forbidden. The Originator and Publisher should be clearly cited in any product derived from this data. Any modifications to this data must be described in any digital or hardcopy product derived from this data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person:Linda McCawley
Contact_Organization:Lancaster County GIS
Contact_Position:Senior GIS Analyst
Contact_Address:
Address_Type:mailing and physical address
Address:
50 North Duke St.
Address:
PO Box 83480
City:Lancaster
State_or_Province:PA
Postal_Code:17608-3480
Country:USA
Contact_Voice_Telephone:(717) 391-7550
Contact_Electronic_Mail_Address:mccawlel@co.lancaster.pa.us
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850
Cross_Reference:
Citation_Information:
Title:
Bridges
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Verified visually using aerial photography and through field reconnaissance
Logical_Consistency_Report:
Topology Exists
Completeness_Report:
The data was created using countywide 1 inch to 1600 foot aerial photography  The data extends to at least the County border and will include a buffer of approximately 250' or greater.  All bridges visible at this scale were included in the dataset.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Accuracy conforms to National Mapping Accuracy Standards of planimetric and topographic mapping data at a design scale of 1"=200'
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value:Positional accuracy of +/- 7 feet for 90% of features
Lineage:
Source_Information:
Source_Scale_Denominator:2400
Type_of_Source_Media:Aerial Photographs
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:1998
Source_Currentness_Reference:
ground condition
Process_Step:
Process_Description:
Features digitized from aerial photography using photogrammetric equipment in 1993 and 1998.  Supplemented and revised by Lancaster County GIS from information gathered through assessment, fieldwork and surveys.
Process_Date:1999
Cloud_Cover:None
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method:Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type:G-polygon
Point_and_Vector_Object_Count:1412
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name:Lambert Conformal Conic
Lambert_Conformal_Conic:
Lambert Conformal Conic
Standard_Parallel:39.933333
Standard_Parallel:40.966667
Longitude_of_Central_Meridian:-77.750000
Latitude_of_Projection_Origin:39.333333
False_Easting:1968500.000000
False_Northing:0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method:coordinate pair
Coordinate_Representation:
Abscissa_Resolution:0.000000
Ordinate_Resolution:0.000000
Planar_Distance_Units:survey feet
Geodetic_Model:
Horizontal_Datum_Name:North American Datum of 1983
Ellipsoid_Name:Geodetic Reference System 80
Semi-major_Axis:6378137.000000
Denominator_of_Flattening_Ratio:298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution:1.000000
Altitude_Encoding_Method:Explicit elevation coordinate included with horizontal coordinates
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label:Bridges
Entity_Type_Definition:
Attribute table for Bridge Polygons
Attribute:
Attribute_Label:TYPE
Attribute_Definition:
Identifies bridge and covered or non-covered
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value:0
Enumerated_Domain_Value_Definition:
Covered Bridge
Enumerated_Domain:
Enumerated_Domain_Value:1
Enumerated_Domain_Value_Definition:
non-covered bridge
Attribute:
Attribute_Label:FID
Attribute_Definition:
Internal feature number.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label:SHAPE
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label:Shape
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label:SHAPE_area
Attribute_Definition:
Area of feature in internal units squared.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Positive real numbers that are automatically generated.
Attribute:
Attribute_Label:SHAPE_len
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Pennsylvania Spatial Data Access (PASDA)
Contact_Address:
Address_Type:mailing address
Address:
115 Land and Water building
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:United States
Contact_Voice_Telephone:(814) 865 - 8792
Contact_Electronic_Mail_Address:pasda@psu.edu
Distribution_Liability:
The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size:0.276
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Metadata_Reference_Information:
Metadata_Date:20100415
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Lancaster County GIS
Contact_Person:Jean Juengling
Contact_Position:Consultant/GIS Analyst
Contact_Address:
Address_Type:mailing and physical address
Address:
50 North Duke St.
Address:
PO Box 83480
City:Lancaster
State_or_Province:PA
Postal_Code:17608-3480
Country:USA
Contact_Voice_Telephone:(717) 391-7550
Metadata_Standard_Name:FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version:FGDC-STD-001-1998
Metadata_Time_Convention:local time
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name:ESRI Metadata Profile
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