7007 SEAWAY BLVD 2016-01-01 MF Import

1.. 1.. �V�[.Bl��v✓tY luly 25, 1996 If fill placement is necessary for pond berm conscruction, we rccommend that the soil contain a minimum of 20 percent fines material by weight Our sieve rcsulu show that most of the on-site glacial till and fill sails would be e!cpected to mat this criterion. Swctural fill should be placed in uniform loose layers not exceeding l2 inches and then compacted to a minimum of 95 percent oCthe soil's maximum dry densiiy as detertnined by ASTM Tat Designaaon D- � 698(Standard Proctor). '[he moisture conG nt of the wil at the time of compaction should be within hvo pereent of its optimum, as detennined by this same ASTN standard. In non-structural or landscaping ereas,the degree of compaction can be reduced to 90 perernt �oundation and Slab Placement We incommend placing foundations and slab-on-�ade floors on the existing compecent fili soils or swctural fill placed and compacted on theu soils. Perimeter foundations exposed to the weather should be a minimum depth of l.5 feet below final exterior grades for frost protection. Interior foundations can be const�ucted at any convenient depth below the floor siab. We recommend designing foundations for a tiet allowable beazing capaciry of 1,500 pounds per square foot(ps�. For shoraterm loads such as wind and seismic, a 1J3 incrcaze in this allowable capacity can be use�+, With the anticipated loads and bearing strcsses,ditTerential building settlemencs should be less than !/4 inch. If wetting of the floor slab due to capillary moisture is not desircd,we raommend placing, immediately below the floor slab, a fouo-inch thick capillary break layer of clean, free-d2ining sand or gravel that haz less than three percent passing the No.200 sieve. 'Ihis material will rcduce the potential for upward capillary movement of water through the underlying soil and�ubsequent wetting of the flaor slab. �ut and Fill Slon� p�l permanent cut and fili slopes should be graded wi�t°an en`letnotsteeper t�harttc3:1�,wless Below stored water levels, pond slapes should be gra B protected by a minimum l2-inch thick layer of quazry spalis or other reveunent construction. Upon completion of grading, slope faces should be aporopriately vegetated or provided with other physical means to guard against erosion. The pond slope faces should be thoroughly compacted prior to vegetation or protection with rock. ' , Pavemcats Pavements should be conswcted on subgrades prepared az described in the Site Preparat�on and Grading section. Regardiess of the degrce of relative compaction achieved, the subecade m�ut be firm and relatively unyielding beFore paving. Proofrolling the subgrade with hcavy construction equipment should be completed to verify this condition. ' ' Project No:T-27'i6•l Page No. 5