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CARL ANDQRSON QNG NQQRNG <br /> 1625 SOUTH SECOND AVENUE - ANOKA, MINNESOTA 55303 <br /> OFFICE AND CELL PHONE: 612 518 5317 <br /> ENGINEERING FIELD REPORT <br /> Client: Rodney Colson Site: 4731 North Shore Drive <br /> Colson Custom Homes Orono, MN <br /> 18001 Highway 7 Ste 1, <br /> Minnetonka, MN <br /> Date of Report: March 21, 2013 Site Visit: March 16, 2013 <br /> Background: <br /> You are planning to build a single family home at 4731 North Shore Drive in Orono, MN. It is my <br /> understanding that bluff setback variances have or will be granted by the city of Orono and that Orono <br /> city officials have requested an engineering review of the stability of the slope given the additional <br /> loadings from the house and deck. <br /> You provided a survey prepared by Lot Surveys Company showing the location of the planned house <br /> on the lot, plus the topography of the lot as expressed by contour lines and the location of the bluff line. <br /> An excerpt from their survey is reproduced here at a scale of 1 inch equals 40 feet. The locations of <br /> four soil borings augured in May of 2007 have been added to the survey, figure 1. <br /> m <br /> �1• <br /> 6 <br /> 4 <br /> Unimproved ,5treet <br /> 4$ ..e ��$ ,. r <br /> 921 S 36'00'00'W 150.00 _�,--Q�•9aI rao <br /> ' <br /> u <br /> Ck <br /> rf .✓' 2 <br /> 2 L <br /> arri <br /> Y <br /> n ., <br /> Ir I <br /> : r <br /> —J, <br /> b �1 TN2v 't Tl E 1! <br /> av <br /> I ' <br /> w <br /> i <br /> 3 <br /> 0 10 20 30 40 504W <br /> Fe <br /> Feet <br /> Figure 1 —Topographic survey of 4731 North Shore Drive <br /> Geotechnical Observations: <br /> The soil borings were made by me in 2007 to examine soil conditions along the alignment of what was <br /> then a proposed tram to serve both properties — 4731 and 4725. The soil borings were located from <br /> the base of a cribbed earthen platform, and down the slope along the property line. Logs of the soil <br /> borings are given below. <br />