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CARL ANDERSON QNGIN�IZING. P.A. 1625 SOUTH SECOND AVENUE - ANOKA, MINNESOTA 55303 OFFICE&CELL PHONE: 612 518 5317 - FAX:763 422 9615 ENGINEERING FIELD REPORT Client: Michael Scott Homes, Inc. May 22, 2007 701 Ivanhoe Drive Watertown, MN 55388 Site: 4725 North Shore Drive Site Visit: May 8, 2007 Geotechnical Observations: This home under construction at 4725 North Shore Drive will share a tram lift with the future house at 4731. The topographic survey map you provided shows a total vertical drop from the street to the lake of 56 feet across a horizontal distance of 212 feet. It is understood that the tram will utilize a 25 by 8 foot cribbed earthen platform presently on the lake side of the houses for the top launching area. This platform sits about 37 feet above the lake surface. The survey also shows that the lake shore is at a horizontal distance of about 52 feet from the edge of the platform and that the lake surface elevation is 929.06 feet Presently there is a wooden stair way consisting of 3 segments of 15 each, 2 by 10 lumber treads, 8 inch risers, separated by 2 landings plus an additional landing at the stair bottom. The landings are 34 inches deep front to rear. To examine soil conditions along the tram alignment, soil auger probes were made starting at the base of the cribbed earthen platform and then opposite each of the three landings. The test holes were made along the approximate alignment of the proposed tram. Elev. 963, Elev. 955, Elev. 945, TesElev. 935, hole 1 Test T toward Test 13'toward Test 26'toward hole le 39'toward lake* hole 2 lake* hole 3 lake* 4 lake' 0'to 2' Black 0'to 2, Black 0'to Black 0'to 1' Black clay topsoil clay topsoil 1.5' clay topsoil clay topsoil Tan lean 2'to 3, Tan lean1.5'to Tan lean 1'to 3' Tan lean clayclay3' clay clay * measured horizontally from toe of the cribbed earthen platform The test holes consistently showed black clay topsoil, somewhat organic, underlain by tan colored lean clay. The tan lean clay appeared to be undisturbed glacial till and was quite stiff. Boulders were not encountered but are likely, randomly present in the clay. You indicated that there may have been a history of erosion on the existing bank slope. Evidence of erosion was seen in the vicinity of test hole 3. The soil around the base of a tree appeared eroded removing less than a foot—measured normal to the bank slope. Further down the slope opposite test hole 4, batter boards had been installed in an attempt to hold back the soil. The entire surface of the bank slope is covered over with a coarse net. Brush, possibly sumac, has grown up through the net.