Access comprehensive data on electric power transmission lines in Dallas County, Texas tailored for GIS professionals dealing with infrastructure projects. Our dataset, "US Electric Power Transmission Lines," includes details on 4 key overhead AC lines which are active within the region. Information on each feature covers aspects such as ownership, sourced from entities like Oncor Electric Delivery and Farmers Electric Coop, voltage specifics, and more based on 2017 surveys. Key features documented include lines with higher voltage classes (345kV) often associated with bulk power transmission, detailed source authentication through imagery and OpenStreetMap, and relevant NAICS descriptions emphasizing electric bulk power transmission and control. Ideal for detailed mapping and analysis, this data aids in planning and monitoring of power distribution infrastructure in this populous Texas region.