ABSTRACT

Geomorphology and engineering are dependent upon each other in the solution of landslide problems. Geomorphology plays an important role in the engineering control of landslides. Photogeology and landform analysis enable the geomorphologist to identify landslide problems, interpret them, and offer guidelines and alternatives for their remedy. Armed with available maps and aerial photos, the geomorphologist benefits from an initial field reconnaissance in areas where landslides are unmapped. Geomorphologists must be acquainted with the alternative methods of engineering control in order to provide appropriate geologic data, determine the feasibility of each alternative, and make sound recommendations based upon this information. Buttresses can be appraised by the geomorphologist as economically feasible, economically marginal, or economically unfeasible. Geomorphic interpretation combined with drilling data show that the slide occurred prior to the present erosion cycle and that there is no evidence of reactivation during the present erosion cycle.