Post-Flood Report Missouri River and Tributaries, Spring Floods 1984

摘要

Large areas of the Missouri River basin received intermittent heavy rainstorms during the months of May and June 1984. Above average precipitation also occurred during the preceding months. The prolonged wet spring culminated with flooding in June. The flooding was the worst since the disastrous flooding in 1952. Within the Omaha District boundaries, most of the damage occurred in southeastern South Dakota, western Iowa, eastern Nebraska, and northwestern Missouri. The tributary river basins in which flooding or high flows occurred were the Beaverhead River and Ruby River basins in Montana; the Vermillion River, James River, and Big Sioux River basins in South Dakota; the Big Sioux River, Little Sioux River, and Nishnabotna River basins in Iowa; and the Salt Creek, Papillion Creek, Elkhorn River, and North Platte and Platte River basins in Nebraska. The flooding in most of these basins contributed to high flood stages on the Missouri River. The purpose of this post-flood report is to provide a record of the flooding that occurred in the Missouri River basin in the spring of 1984 with respect to the hydrometeorological data, areas flooded, physical damages inflicted, loss of life, financial and economic losses, and damages prevented by existing projects.