New Hampshire once had nearly four hundred covered bridges, most of which unfortunately are no longer in existence. Some of them were railroad bridges and, although often viewed as charming relics of the past, all of these bridges were actually vital links in New Hampshire's transportation system. Covered bridges were used to cross most of New Hampshire's large rivers, including the Connecticut, Merrimack, Mascoma, Contoocook, Pemigewasset, and Ashuelot. New Hampshire Covered Bridges is a photographic study of the state's enclosed wooden spans that date from as far back as 1827. The book contains rare photographs of historic bridges that no longer exist, as well as pictures of many that still stand today. The images are accompanied by detailed information about the design and construction of covered bridges and the men who built them. Each bridge has its own life story. Some have defied floods and hurricanes and still stand; others have fallen victim to nature or arson or the demands of modern transportation.