Laserfiche WebLink
September 15,2018 <br /> Pts�ject 18-412 <br /> Shovel Ready Proj�t Site <br /> Pequot Lakes,Miimesota <br /> After removal of the topsoil and any other unsuitable soil encountered,we recommend clean, <br /> inorganic,mineral soil be used as fill to bring the building pad to grade. The native,on site soils <br /> appear suitable for this purpose. We recommend a 6-inch layer of clean buffer sand be placed <br /> beneath the floar slabs and slabs-on-grade. The on-site soils consisting of poorly graded sands <br /> (SP)aze suitable for this purpose. <br /> We recommend the bottom of the excavation be observed by a soils engineer or a qualified <br /> technician to verify that native,competent material has been reached. We recommend the <br /> excavation be oversized one foot for every foot of fill required to reach planned grade(1:1 <br /> oversizing). Soils can change dramatically over short horizontal distances;therefore these depths <br /> should be used as a guide. We recommend clean,mineral fill,meeting the requirements of <br /> structural fill,be placed and compacted to bring the building and pavement areas to grade. <br /> Structurr�ll F�11• <br /> The on-site soils consisting of silty sands(S1Vn,poorly graded sands(SP)and poorly graded sand <br /> with silt(SP-S11�are considered excellent for use as structural fill. These soils are generally <br /> easy to work with and compact with vibratory compaction equipment. The silty sand(S1Vn soils <br /> just below the topsoil can be somewhat difficult to work with if they are not at or near optimum <br /> moisture for compaction. Drying or mixing of the silty sand(S1Vn soils will be necessary if they <br /> are above optimum moistiue. <br /> No organic soils,roots,stumps,logs,brush,etc. should be used as structural fill below any <br /> founda.tion or pavement section. We recommend that all fill material be free of soft,wet or <br /> frozen soils,highly expansive soils,rubble,debris and rocks in excess of 6 inches in diameter. <br /> The fill should be as uniform as possible both in composition and moishu�e conten� <br /> We recommend all fill be compacted to the minimum relative density levels shown in the table <br /> below: <br /> Page 5 <br />