Fort Peck Slide

Tests and analyses conducted on the soils and rocks encountered at the Fort Peck Dam (in northeastern Montana, on the Missouri River) which have a bearing on the slide that occurred on September 22, 1938, are the basis of this paper. Since very little information has been published on the investigations conducted prior to the slide, the first part of the paper has been devoted to that subject. The major part is devoted specifically to the studies conducted after the slide, to determine its cause and to outline a method of repair.