'Spanning a Lifetime' is a book about bridges with associated stories. Chris has always had an interest in bridges, both from an engineering design perspective, as well as an appreciation of their aesthetic qualities, and architectural style. All the bridges featured in this book, are amongst those that Chris has either, crossed over, passed beneath, or simply visited at some stage in his life. They all have significance in reminding him of people, places, and things that he recalls, for various reasons. Chris is also interested in historic ships therefore he has included a number of those, which have an association with some of his bridges.