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The Ohio River at Cairo is 281,500 cu ft/s (7,960 m 3 /s); [1] and the Mississippi River at Thebes, Illinois, which is upstream of the confluence, is 208,200 cu ft/s (5,897 m 3 /s). [66] The Ohio River flow is greater than that of the Mississippi River, so hydrologically the Ohio River is the main stream of the river system.
This is a list of locks and dams of the Ohio River, which begins at the confluence of the Allegheny and Monongahela rivers at The Point in Pittsburgh, Pennsylvania and ends at the confluence of the Ohio River and the Mississippi River, in Cairo, Illinois. A map and diagram of U.S. Army Corps of Engineers operated locks and dams on the Ohio River.
Clay shed from the rising mountains, associated with the Taconic orogeny formed the shale units. The warm sea water created perfect conditions for abundant biological activity and the Cincinnatian Series is highly fossil-bearing, outcropping across much of southwest Ohio in river beds, hillsides and road cuts. Ohio's State Invertebrate Fossil ...
The highest level ever recorded on the Ohio River in Cincinnati was on Jan. 26, during the devastating flood of 1937. Historic crests on the Ohio River in Cincinnati. 80 feet on Jan. 26, 1937. 71. ...
An early map of the Falls of the Ohio; Louisville, Kentucky is in the lower right The area is located at the Falls of the Ohio, which was the only navigational barrier on the river in earlier times. The falls were a series of rapids formed by the relatively recent erosion of the Ohio River operating on 386-million-year-old Devonian hard ...
The highest level ever recorded on the Ohio River in Cincinnati was on Jan. 26, during the devastating flood of 1937. Historic crests on the Ohio River in Cincinnati. 80 feet on Jan. 26, 1937. 71. ...
The Ohio water resource region is one of 21 major geographic areas, or regions, in the first level of classification used by the United States Geological Survey to divide and sub-divide the United States into successively smaller hydrologic units. These geographic areas contain either the drainage area of a major river, or the combined drainage ...
U.S. Route 52 (US 52) runs east–west across the southern part of the state of Ohio along the Ohio River, passing through or very near the cities and towns of Cincinnati, Portsmouth, and Ironton. For its first 19 miles (31 km) or so, the highway runs concurrently with Interstate 74 (I-74) and I-75 before it winds through downtown Cincinnati ...