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BELOW THE <br /> UPPER 24 INCHES UPPER 24 INCHES <br /> OF FILL(INCHES) OF FILL(INCHES) <br /> FILL LOCATION <br /> Under Building Areas: 3 3 <br /> Under Roads,Pavements and <br /> ParkingLots: 4 *6 <br /> Under Grassed Areas: 6 *6 <br /> *May be exceeded if approved by Architect/Engineer <br /> B. Building and Pavement Areas: <br /> 1. At those site areas where the existing grade is below design subgrade elevation(after <br /> topsoil has been removed),the areas shall be filled with compacted select suitable fill <br /> up to subgrade elevation. Subgrade elevation at building area per 3.4.B 1; subgrade <br /> elevation at pavement area per 3.4.C.1. <br /> 2. Once subgrade elevation has been satisfied, granular borrow shall be placed in a <br /> controlled fashion as described below. At parking lot areas, a geotextile fabric shall be <br /> placed over the subgrade prior to placement of granular borrow. Fabric placement <br /> shall include sewn seams meeting the strength requirements of MnDOT(Spec. Section <br /> 3733, table 3733-1. <br /> 3. The placement of granular borrow over a geotextile fabric shall occur in a manner that <br /> protects the fabric from direct wheel loads. This may be accomplished by dumping the <br /> granular borrow at the limit of the area so treated, and then spreading the granular <br /> borrow with a crawler tractor to an initial thickness of 12". Once this initial layer has <br /> been compacted to specified density the application of subsequent lifts of granular <br /> borrow can be performed in a more conventional fashion at the Contractor's <br /> discretion. <br /> 4. At pavement areas within 10 ft. of building perimeter, a 3" thick polystyrene insulation <br /> bond shall be incorporated into the granular borrow placement sequence. See detail <br /> drawings for specific placement details. <br /> C. Construction: <br /> 1. The applicable fill materials shall be placed in horizontal layers which, when loose, <br /> shall not exceed 8". Each layer shall be spread evenly and shall be thoroughly blade <br /> mixed during the spreading to obtain uniformity of material in each layer. Each layer <br /> shall be compacted to a density not less than the percentage of maximum dry density <br /> as specified herein. <br /> ADDENDUM#1 <br /> 1607.001 -ORONO ICE ARENA(CP-2) Page 02200 - 11 <br />