Electric Power Transmission Lines for Homeland Infrastructure

Comprising geospatial data on electric power transmission lines, including underground lines where available. It was created by Oak Ridge National Laboratory for the Homeland Infrastructure Foundation Level Database (HIFLD) and the energy modeling community. The data includes lines operating at voltages from 69 kV to 765 kV.

Use Cases

• Map transmission line locations and voltage levels for infrastructure vulnerability assessments in disaster planning.
• Analyze the spatial distribution of high-voltage lines (e.g., 765 kV) to model grid capacity and identify potential bottlenecks.
• Integrate transmission line geometry with other HIFLD infrastructure layers for emergency response and contingency modeling.
• Use the geospatial features to study the proximity of critical transmission assets to environmental or man-made hazards.

Strengths

• Includes a defined voltage range for lines, from 69 kV up to 765 kV.
• Explicitly includes underground transmission lines where source data was available.
• Maintained for the Homeland Infrastructure Foundation Level Database (HIFLD), indicating a focus on critical infrastructure.

Limitations

• The specific number of features (rows), columns, and file size are unknown.
• The source HIFLD Open GIS repository was deactivated, which may affect data provenance and update paths.
• Geographic coverage and temporal range are not specified in the provided input.

Provenance

Source

Homeland Infrastructure Foundation Level Database (HIFLD), archived from its Open GIS repository.

Collection Method

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Time Range

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Freshness

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Geography

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