Human-made bridges range from simple to complex, soaring as high as a skyscraper and spanning distances longer than a football field. Bridges are engineering feats and often architectural works of art. In this book, you will learn about five types of bridges: how they are designed, how they are built, and how they work.

"Hairy Bear needs a new front door. Who will help him?"--p. [4] of cover.

"Instructions on Modern American Bridge Building" is a manual for engineers comprising theory, practical applications and examples, estimates of quantities, and also tales to help with calculations. The book is an introductory course on the subject. Today, it will be interesting as a source of historical information as it lets a reader track the development of engineering thought.