America's Covered Bridges

by Donald O. Barth, (M.ASCE), Sen. Proj. Engr.; Forest Products Group, Koppers Co., Inc., Pittsburgh, Penn.,


Serial Information: Civil Engineering—ASCE, 1980, Vol. 50, Issue 2, Pg. 51-54


Document Type: Feature article

Abstract:

Soon after the Revolutionary War, bridge construction became more important in the United States. Early builders developed by trail and error an economical, permanent, long-span covered timber bridge. Four types were developed from much experimentation and were patented and licensed by their originators: Burr, Town, Long and Howe. Covers construction methods and tools. Types of trusses. Bridges used for canals (aqueducts to carry water), railroads and highways.



Subject Headings: Covered bridges | Highway bridges | Railroad bridges | Infrastructure construction | Construction methods | Economic factors | Wood | Span bridges | United States

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