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The North American river otter's sensitive whiskers allow it to detect prey in murky water North American river otters have small ears. North American river otters characteristically approach within a few feet of a boat or a person on shore due to their near-sightedness, a consequence of vision adapted for underwater sight.
By 1997 the river otter had been sighted along the South Branch Kishwaukee River. In addition to tree cover river otters find ideal habitat in northern Illinois when it is isolated from the main river channel, has extensive vegetation, open water in winter, good water quality, suitable den sites and minimal human disturbance. [9]
River Otters utilize and/or construct dens adjacent to permanent water and may make conspicuous mud-slides along the the banks of rivers, streams, and lakes where they belly-slide down into the water.
The Illinois Waterway system consists of 336 miles (541 km) of navigable water from the mouth of the Calumet River at Chicago to the mouth of the Illinois River at Grafton, Illinois. Based primarily on the Illinois River , it is a system of rivers, lakes, and canals that provide a commercial shipping connection from the Great Lakes to the Gulf ...
For much of the past couple of decades, the U.S. Army Corps of Engineers declined to reveal the conditions of dams in the National Inventory of Dams — which it maintains — citing security ...
The Locks and Dams 52 and 53 Replacement Project, better known as the Olmsted Locks and Dam Project makes use of the innovative in-the-wet construction. When a dam is constructed on a small river, engineers usually create a cofferdam (or an enclosure) within a river and drain the water out of it to facilitate construction. However, building ...
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The Montgomery Dam is a gravity dam on the Fox River in Montgomery, Illinois. The dam was built for flood control and navigation in 1969 as a part of the Stratton project [ 1 ] dam system [ 2 ] which was designed to keep the river navagable from the Wisconsin border to the confluence with the Illinois River .