The road is one of mankind's most important inventions, and understanding how to build and maintain them is crucial to modern society. In this comprehensive manual, readers will learn the principles and practices of road construction, from selecting a site to laying the final surface. With detailed instructions and helpful illustrations, this book is an essential resource for engineers, contractors, and anyone interested in the science of transportation. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.