U.S. Electric Power Transmission Lines (Archive)

This feature layer has been archived. It will no longer be updated or maintained. Last Data Update: 09/30/2024 U.S. Electric Power Transmission Lines This feature layer depicts electric power transmission lines in the United States. 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. 138 Kilovolt Transmission Line Data currency: 09/30/2024 Data modification: none For more information: Electricity Explained For feedback, please contact: [e-mail]