Implementation of Slope Stability Research: Geologic Profiles along I-70 and I-77

摘要

The objective is to produce geologic profiles along interstate routes I-70, Mi.163 to 203, and I77, Mi. 6 to 38. These sections traverse regions where the red shales of the Pennsylvanian and Permian ages occur near the surface in many localities. Slope failures in the red shales constitute a serious maintenance problem. The geologic profiles were constructed to provide engineers with advance information as to where the red shales are likely to be encountered, so that potential problems can be anticipated and included in the planning process. The geology was studied as part of earlier research projects. The various geologic formations and members were identified by inspection of materials exposed in cut slopes and natural slopes. Borehole records were used to locate the formations between the exposures. This information was presented in the form of geologic profiles. Information from records of boreholes made by ODOT along these routes after 1987 was incorporated into the profiles.