NHD Stream Order - Pennsylvania


Identification_Information:
Citation:
Citation_Information:
Originator:WeConservePA
Publication_Date:2026
Title:
NHD Stream Order - Pennsylvania
Geospatial_Data_Presentation_Form:vector digital data
Online_Linkage: http://www.pasda.psu.edu/
Description:
Abstract:
This is the USGS National Hydrology Dataset Plus High Resolution EPA Snapshot 2022 Data for Pennsylvania [https://www.epa.gov/waterdata/get-nhdplus-national-hydrography-dataset-plus-data]. HUC04, HUC06, and HUC08 are calculated from Reach Codes. Dataset dissolved by GNIS Name and HUC codes. Tributaries are grouped by HUC08 codes and labeled with Subbasin names. See https://water.usgs.gov/GIS/wbd_huc8.pdf for full hierarchy. The Delaware River polyline was supplemented using Open Street Map Waterways layer for continuity.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:2026
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-80.627213
East_Bounding_Coordinate:-74.624576
North_Bounding_Coordinate:42.286688
South_Bounding_Coordinate:39.679238
Keywords:
Theme:
Theme_Keyword_Thesaurus:ISO 19115 Topic Categories
Theme_Keyword:FWHydrography
Theme_Keyword:Hydrography
Theme_Keyword:Stream / River, Lake / Pond, Canal / Ditch, Reservoir
Theme_Keyword:Swamp / Marsh
Theme_Keyword:Spring / Seep
Theme_Keyword:Artificial Path
Theme_Keyword:Reach Code
Theme_Keyword:inlandWaters
Access_Constraints:None
Use_Constraints:
None
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:WeConservePA
Contact_Address:
Address_Type:mailing and physical address
Address:
610 N. 3rd St, Suite 301 
City:Harrisburg
State_or_Province:Pennsylvania
Postal_Code:17101
Country:United States
Contact_Voice_Telephone:717.220.3272
Contact_Electronic_Mail_Address:ibeal@WeConservePA.org
Native_Data_Set_Environment:
Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362
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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:String
Point_and_Vector_Object_Count:215312
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Lambert_Conformal_Conic:
Standard_Parallel:39.93333333333333
Standard_Parallel:40.96666666666667
Longitude_of_Central_Meridian:-77.75
Latitude_of_Projection_Origin:39.33333333333334
False_Easting:1968500.0
False_Northing:0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method:coordinate pair
Coordinate_Representation:
Abscissa_Resolution:0.0003280833333333333
Ordinate_Resolution:0.0003280833333333333
Planar_Distance_Units:foot_us
Geodetic_Model:
Horizontal_Datum_Name:D NAD 1983 2011
Ellipsoid_Name:GRS 1980
Semi-major_Axis:6378137.0
Denominator_of_Flattening_Ratio:298.257222101
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label:NHD_HR_Stream_Order_PA
Attribute:
Attribute_Label:OBJECTID
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:permanent_identifier
Attribute:
Attribute_Label:resolution
Attribute:
Attribute_Label:gnis_id
Attribute:
Attribute_Label:gnis_name
Attribute:
Attribute_Label:reachcode
Attribute:
Attribute_Label:flowdir
Attribute:
Attribute_Label:wbarea_permanent_identifier
Attribute:
Attribute_Label:ftype
Attribute_Definition:
460-StreamRiver, 558-ArtificialPath, 334-Connector, 336-CanalDitch, 420-Underground Conduit, 428-Pipeline,  468-Drainageway, 566-Coastline
Attribute:
Attribute_Label:nhdplusid
Attribute:
Attribute_Label:streamorde
Attribute:
Attribute_Label:startflag
Attribute:
Attribute_Label:terminalfl
Attribute:
Attribute_Label:totdasqkm
Attribute:
Attribute_Label:slope
Attribute:
Attribute_Label:hwtype
Attribute:
Attribute_Label:hwnodesqkm
Attribute:
Attribute_Label:STR_ASSESS
Attribute:
Attribute_Label:STR_ATTAIN
Attribute:
Attribute_Label:SOURCE_CAU
Attribute:
Attribute_Label:Shape_Length
Attribute_Definition:
Length of feature in internal units.
Attribute_Definition_Source:
Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Positive real numbers that are automatically generated.
Attribute:
Attribute_Label:Len_mi
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Organization:Pennsylvania Spatial Data Access (PASDA)
Contact_Address:
Address_Type:mailing and physical 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.
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Metadata_Reference_Information:
Metadata_Date:20260207
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Pennsylvania Spatial Data Access (PASDA)
Contact_Address:
Address_Type:mailing and physical 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
Metadata_Standard_Name:FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version:FGDC-STD-001-1998
Metadata_Time_Convention:local time
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