This comprehensive guide delves into the modeling, structural systems, and foundation designs used in high-voltage transmission lines. It provides an in-depth exploration of conductors, insulators, hardware, and component assembly, offering valuable insights into the diverse range of structural systems and configurations employed globally. While the term “transmission structures” is often synonymous with lattice steel towers in many developing countries, this resource broadens the scope to include systems made from wood, steel, concrete, and composite materials. Key topics include structure functions and configurations, load cases for design, advanced analysis techniques, and the latest developments in line, structure, and foundation modeling. The foundations section covers essential theories related to direct embedment, drilled shafts, spread foundations, vibratory caissons, micropiles, and anchors, providing detailed explanations and practical applications. Additionally, this edition addresses regulatory changes related to climate change and features a special chapter on complex design scenarios. Key Features:Comprehensive coverage of transmission and distribution linesDetailed exploration of modeling, analysis, and design techniquesIn-depth discussion of structural and foundation systemsIncludes worked-out design problems for practical applicationDesigned for students, practicing engineers, researchers, and academics, this book serves as both a textbook and a design guide for graduate-level courses. It is an indispensable resource for those involved in the design, analysis, and maintenance of transmission line structures and foundations. Engineers and managers at utilities and electrical corporations will also find it a valuable reference for their professional work.