Pleistocene deposits from wind, water and ice dominate the soil engineering in Iowa. For foundation engineering the in situ properties of soils must be evaluated, the most pertinent properties being shear strength and compressibility. Alternately if the soil is to be used as a construction material, for example in embankment or earth dam construction, disturbed properties such as grain size and plasticity are utilized and are reflected in engineering classification. The shear strength, compressibility, and engineering classification of the various types of Pleistocene and Recent deposits in Iowa are presented and discussed, and examples of the use of shear strength data in slope stability and bearing capacity problems are presented.
Proceedings of the Iowa Academy of Science
©1968 Iowa Academy of Science, Inc.
Handy, R. L.
"The Pleistocene of Iowa: An Engineering Appraisal,"
Proceedings of the Iowa Academy of Science, 75(1), 210-224.
Available at: https://scholarworks.uni.edu/pias/vol75/iss1/32