Service Description: (This data is temporary and will be updated in https://logis.loudoun.gov/gis/rest/services/COL/Utilities/MapServer/1)
Major Powerlines are used to show the spatial location of major high tension overhead powerlines in Loudoun County, VA,
This feature class/shapefile is for the Homeland Infrastructure Foundation Level Database (HIFLD) https://gii.dhs.gov/HIFLD as well as the Energy modelling and simulation community and contains Electric Power Transmission lines in the U.S. greater than or equal to 100 volts. It has been modified to include new line additions built after the dataset was published. View inline attribution for line by line sourcing.
This dataset was captured and provided to Loudoun County by Kimley-Horn in 2024, which update previous features data back to 2009.
Service ItemId: c33585e239d74d5e962c2f19d1db1f95
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
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Layers:
Description: This feature class/shapefile represents electric power transmission lines. Transmission Lines are the system of structures, wires, insulators and associated hardware that carry electric energy from one point to another in an electric power system. Lines are operated at relatively high voltages varying from 69 kV up to 765 kV, and are capable of transmitting large quantities of electricity over long distances. Underground transmission lines are included where sources were available. The following updates have been made since the previous release: 1,166 features added. Downloaded by Kimley-Horn on May 30, 2024.
It has been modified by Kimley-Horn to include new line additions built after the dataset was published. View inline attribution for line by line sourcing.
Data Schema was modified in September 2024 to capture the Voltage and Voltage Class information.
HIFLD, Esri Living Atlas, Oak Ridge National Laboratory (ORNL), Los Alamos National Laboratory (LANL), Idaho National Laboratory (INL), National Geospatial-Intelligence Agency (NGA) Homeland Security Infrastructure Program (HSIP) Team, Virginia SCC
Spatial Reference: 102100 (3857)
Initial Extent:
XMin: -8688278.7892164
YMin: 4699261.24188
XMax: -8583888.6188836
YMax: 4767938.98552
Spatial Reference: 102100 (3857)
Full Extent:
XMin: -8655615.5463
YMin: 4702382.9575
XMax: -8616551.8618
YMax: 4764817.2699
Spatial Reference: 102100 (3857)
Units: esriMeters
Child Resources:
Info
SharedTemplates
Supported Operations:
Query
ConvertFormat
Get Estimates