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The article offers information on the flooding of the Ohio River at the Cache River Valley in south Illinois in the later part of April ad early part of May in 2011. It mentions that the flood is caused by the early snowmelt and heavy rains at the eastern part of Ohio Basin and it resulted to the rise of Ohio River's gage to 18.7 meters. Moreover, the counties affected by the flood and the geological attributes of the Cache River Valley are also stated.

The article focuses on the failure of the Len Small levee during the Ohio River Flood of 2011 in Illinois. It discusses the architectural features of the extensive systems of the U.S. Army Corps of Engineers (USACE) and private levees that confine the Mississippi River and protect the low-lying agricultural lands, rural towns, and public conservation areas from flooding. The Small Len levee built on the southern Illinois border near Cairo protects private and public lands from 20-year floods.

The article focuses on the effects of the flooding in Cairo, Illinois, which was caused by the swelling of the Mississippi and Ohio rivers in 2011. It says that Cairo is situated at the confluence of the two rivers, wherein the Fort Defiance State Park was under water in the April 2011 flooding, as well as the Illinois farmlands. Furthermore, the decision of the U.S. Army Corps of Engineers (USACE) to blow up the New Madrid Floodway helped to lessen the impact of the flood.