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• <br />Bench 1. The East wall bedrock consists of metamorphics--gneissic bands, with a <br />strike azimuth of 070 degrees and a dip of 62 degrees to the South. There <br />is a large planar joint face, which controls approximately a quarter of the <br />face, that is fresh and the roughness is smooth with some asparities to 2 <br />feet. <br />The;rock.face_atiove~tfte lower. road'ori~ttla.~East-side has thq highest face <br />iri the' quarry,atwut:70 feetrict maxinaurr~ heighs;~and.is• approximately 300 `~ <br />feet long:. The face is generally clean with the majority of fractures dipping <br />to the East into the slope, creating a generally stable face. No large <br />potential failure wedges are apparent. Ravelling, the occasional loosening <br />of individual rocks which roll or bounce down the slope, is possible due to <br />weathering forces; i.e., frost wedging, water, etc. Ravelling will be onto an <br />approximately 35 foot wide safety bench which will keep the rock from <br />bouncing down onto the access road. Photo 5 shows the bench and <br />blocks of rock contained. Considering the number of years that the quarry <br />has been out of operation, there are very few rocks. <br />A series of strikes and dips were taken on the East side: 271 degrees, dip <br />67 degrees to the South, 259 degrees, dip 66 degrees to the South, 294 <br />degrees, dip 59 degrees to the Northeast. There are a series of joints <br />going up this face that are subparallel, with a joint spacing of 6 to 12 feet. <br />Strike azimuth is 297 degrees with a dip of 90 degrees. The soil layer on <br />tap of the slope is typically less than a foot thick with an occasional 2 foot <br />thickness in crevasses. See the panorama photos (Figure 6a-d), showing <br />the East wall of the lower quarry. Note that the foliation is relatively <br />constant, striking at 034 degrees, dipping 54 degrees to the North. There <br />is also a small fault (mentioned above) displacing a prominent red bed and <br />a pegmatite dike approximately 4 feet to the South (Figure 6a-d). The shear <br />is less than 2 inches wide. There is a continuous, relatively smooth joint set <br />4 <br />