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Contextual Essays on the Monongahela River Navigation System. Locks and Dams 2, 3 and 4 Monongahela River Project.

机译:莫农加希拉河导航系统的语境散文。 monongahela河项目的锁和水坝2,3和4。

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During the past two decades and under the auspices of the U.S. Army Corps of Engineers and the National Park Service, researchers have thoroughly documented the legislative, construction, and engineering history of the Monongahela River navigation system, as well as the general history of Monongahela Valley industrial development. There seems to be basic agreement on the general history of the region and the development of the river improvements. Any study of value, however, certainly generates new questions and suggests additional research possibilities. There are several underlying themes and assumptions that seem to be part of every study of the Monongahela River and its navigation system made to date, and this particular research effort was commissioned by the Pittsburgh District of the U.S. Army Corps of Engineers specifically to answer several of those major questions. The resulting information is particularly timely and is relevant to ongoing efforts by the Corps to place some of the navigation structures on the National Register of Historic Places.

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