Internet Resources for Highway Engineering

It is possible to find plenty of information relevant to highway engineering by searching the web using one of the standard web search engines (Yahoo, Alta Vista, Lycos, etc.). It can be difficult to tease apart the sites that are especially germane to highway engineering. The following sites are ones that are useful in providing information needed by highway engineers. Included are sites dealing with roads and bridges; not included are sites dealing exclusively with automobile, railroad, maritime, or aerospace engineering.