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Class 3 road)
Class 3 Roads are hard surface roads not included in a higher class and improved, loose surface roads passable in all kinds of weather. These roads are adjuncts to the primary and secondary highway systems. Also included are important private roads such as main logging or industrial roads which serve as connecting links to the regular road network.
See also
References
- U.S. Department of the Interior, Standards for 1:24,000 - Scale Digital Line Graphs and Quandrangle Maps (1994) (Chapter PDF)
- U.S. Federal Highway Administration, Planning Glossary
