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From there two routes went west toward the Mississippi River, one to East St. Louis and the other to Alton, Illinois. (Today the Road's path is followed, for the most part, by U.S. 40 and I-70.).
This companion volume to The National Road is a traveler's guide to the nation's first federally funded highway. Combining a wealth of historical and geographical information, this book takes readers on a 700-mile journey through America's heartland, from the Chesapeake Bay to the Mississippi River. Illustrated with more than 300 maps and lithographs, this authoritative gudie leads us down a trail into our nation's past.
All phases of road developmentâ€"from construction and use by vehicles to maintenanceâ€"affect physical and chemical soil conditions, water flow, and air and water quality, as well as plants and animals. Roads and traffic can alter wildlife habitat, cause vehicle-related mortality, impede animal migration, and disperse nonnative pest species of plants and animals. Integrating environmental considerations into all phases of transportation is an important, evolving process. The increasing awareness of environmental issues has made road development more complex and controversial. Over the past two decades, the Federal Highway Administration and state transportation agencies have increasingly recognized the importance of the effects of transportation on the natural environment. This report provides guidance on ways to reconcile the different goals of road development and environmental conservation. It identifies the ecological effects of roads that can be evaluated in the planning, design, construction, and maintenance of roads and offers several recommendations to help better understand and manage ecological impacts of paved roads.