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<br />003336 <br /> <br />The roadcut failures in the Whiskey Creek landslide toe present an <br />immediate threat to the Interstate highway and it will not be surprisin~ for <br />ei ther or both of them to di srupt traffi c and at times close the road. If <br />either occurs, it will be absolutely critical to monitor the EDM points and <br />inclinometers to see if this is a precursor to larger-scale movement, because <br />this could be the initial phase of a truly catastrophic event. Slowing or <br />stopping such an event will be virtually impossible once it is initiated. <br /> <br />It is expected that in our final report, following additional study funded by <br />the Department of Highways, we will be able to make somewhat more detailed <br />recommendations and evaluations based on detailed field and photogologic <br />study. However, we believe that two more years of instrumental monitoring <br />together with close attention to regional patterns of soil moisture will be <br />need to evaluate the threat of major landsliding of these slides with a <br />reasonable degree of confidence. <br /> <br />/' <br /> <br />( <br /> <br />.. <br /> <br />- 14 - <br />