The Bevil series consists of very deep, poorly drained, very slowly permeable soils. These soils formed in clayey sediments on nearly level terraces of Pleistocene age. Slopes range from 0 to 1 percent. The range in characteristics includes 50 percent or more of the pedon unless otherwise stated. Solum thickness is more than 80 inches.
Texture is clay or silty clay throughout.
Weighted average clay content of the particle-size control section is 45 to 60 percent. This cyclic soil ranges from about 3 to 12 feet from the top of the microhigh to the center of the microlow. Undisturbed areas have gilgai microrelief with microhighs 4 to 15 inches above the microlows. The microhighs comprise about 30 percent, the microlows about 50 percent, and the intermediate areas about 20 percent. When dry, cracks 0.5 to 1 inch wide occur at the surface which extend to a depth of 12 inches or more.