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'F sM Braun Interlec Engineering,Inc. <br /> sR A� N 6801 Woshington Avenue South <br /> ' P.O.Box 39108 <br /> I N T E RT E C M;������5,Minnesota 55439-0108 <br /> 612-941-5600 Fax:941-4151 <br /> ' . Engineers and ScienYists Serving <br /> �he Built andNatural Environments <br /> � <br /> A. Introduction <br /> .t <br /> A.1 Purpose <br /> ' This preliminazy geotechnical evaluation was undertaken to make an evaluation of the site <br /> subsurface soils�and apparent groundwater conditions relative to construction of a visitors <br /> center and paved parking areas at Noerenberg Memorial County Park in Orono, Minnesota. <br /> ' The evaluation will then be used by the Hennepin Parks Department of Planning and <br /> Engineering to design foundations and prepare grading plans and specifications for the <br /> ' project. <br /> A.2 Scope <br /> ' Three standard penetration test borings were performed in the area of the proposed visitors <br /> center. In addition, four power auger test borings were performed in the proposed parking <br /> ' areas. As part of our evaluation, several grain size analyses (number 200 wash) were <br /> performed on select soil samples for classification purposes. With the results of these borings <br /> and laboratory tests, this engineering report was prepared addressing our preliminary analysis <br /> ' and recommendations. ' <br /> ' It should be noted this work was done according to our proposal daterl November 11, 199I. <br /> A.3 Available Information <br /> , Prior to performing our evaluation, a meeting was held at the Hennepin Parks office in <br /> Plymouth to discuss the scope of the project. At that time, we obtained a site plan showing <br /> , the proposed visitors center and parking areas. The plan was prepared by Hennepin Pazks and <br /> dated October 31, 1991. <br /> ' A.4 Locations and Elevations <br /> The borings were performed at the locations staked in the field by Hennepin Parks. These are <br /> ' shown on the attached sketch. <br /> ' Ground surface elevations at the borings were estimated from the surface topography shown <br /> on the available site plan. Thus, the elevations should be considered approximate. <br /> ' <br /> ' <br /> ' <br />