As part of the US Army Corps of Engineers, the Ice Engineering Group solves problems stemming from ice and its effects on equipment and operations. This broad area includes ice jams that impede maritime navigation, maintenance issues, and "the destructive forces that moving ice exerts on river or coastal structures." Released on Oct. 30, 2002, the Ice Engineering Manual, given on this site, is divided into three parts. The first describes the difficulties presented by ice accumulation and how they are solved. Next, preventative measures are introduced that minimize the problem of ice jams. The last part discusses how boats navigate dangerous inland waterways during the winter.