This history of the bridges of Pittsburgh by Leech and Kaplan is a truly distinctive and valuable coverage of this topic. It explains when and where bridges were built, who built them, how they work, what else was happening in Pittsburgh at the time they were built, and how these bridges helped to transform Pittsburgh and the region. The book is well-written, loaded with many interesting facts and historical accounts and extremely accessible to the general reader. Leech and Kaplan dedicate this book to lovers of bridges, lovers of the history of technology, and lovers of Pittsburgh. These groups, and many others, will indeed enjoy reading this labor of love. I did. 
- James H. Garrett, Jr., Dean, College of Engineering, Carnegie Mellon University