The book "Calculation of cross-sectional concrete span structures of bridges and overpasses on highways . Methodical Decree" is an indispensable source of knowledge for civil engineers, architects and students studying the design and construction of bridges and overpasses. The team of authors working on this publication gathered in one place all the necessary methodological guidelines that will help readers to better understand the process of calculating and designing reinforced concrete structures. This book explores in detail the key aspects of beam-cutting span structures design, ranging from basic principles to complex calculations. The authors offer readers not only a theoretical basis, but also practical recommendations, which makes the book especially valuable for professionals working in this field. The reader will be able to find here relevant techniques that meet modern requirements and standards, which avoids common design errors. The book will be interesting not only for professional engineers, but also for students who are preparing for a career in the construction industry. It will be an excellent addition to the training materials and will help to deepen knowledge in the field of bridge and overpass design .. It will be especially useful for those who want to master the subtleties of calculating reinforced concrete structures and learn how to apply the knowledge gained in practice. The topics raised in the book concern not only the technical aspects of design, but also issues related to the safety and durability of bridge structures. The authors emphasize the importance of the correct choice of materials, methods of calculation and accounting of external factors, such as climatic conditions and loads, which can affect the operation of bridges. This makes the book relevant for anyone looking to build reliable and secure transport infrastructures. The style of presentation of the authors is clear and accessible, which allows readers to easily assimilate even the most complex concepts. Each chapter is accompanied by examples and illustrations, which helps to visualize the processes described. This approach makes the book not only a tutorial, but also a practical guide that can be used in everyday work. If you are looking for books on bridge design, then “Calculation of cross-sectional concrete span structures of bridges and overpasses on highways” will be an excellent choice. It may be comparable to other well-known publications in the field, such as Bridge Design or Concrete Structures, but it offers a unique approach and up-to-date guidelines. Thus, this publication represents an important contribution to the literature on the construction and design of bridges. It not only deepens the knowledge of readers, but also inspires the creation of innovative and safe designs. If you want to become an expert in bridge and overpass design, this book should definitely take a place on your shelf.