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- � t' '�t F� '.� + �...1 <br /> F� �] <br /> �0 57 C 1� <br /> 7 H N <br /> H � x � March 15, 1991 <br /> '�� Project No. 9101-14G <br /> K y � �,;'' <br /> °v � �°a <br /> y ~ �° R. DESIGN RECOMA4ENDATIONS <br /> � � �` i.: <br /> o N <br /> � � � �`� �OINTRODUCTTON <br /> � y � � Our exploration indicates that, from a geotechnical standuoint, the parcel is suitable for tf:•� <br /> y — proposed developmen! provided the recommendations contained herein are propedy followed. <br /> �, o y Our explorations ;ndicate that the existing fill in the building area is generally m a dense <br /> � � � - condition znd did not contain any unsuitable soil or debris within the area of our explora[ion <br /> y o y pits. Therefore, lhe upper, dense fill soil may be used ro provide building support and spread <br /> footing foun daUons are feas�ble. It is antici pated that some swctural fill will be necessary to <br /> achieve the desired elevation for the building. Footings may either be founded or. approved <br /> structural fill placed over the existing fill, or directly on the existing f�ll. The medium dense to <br /> dense, upper fill soil will also provide swtable suppori for the proposed pazking and drive-thru <br /> azeas. Some cuts and fills and recompaction may be necessary !n lhese areas also. <br /> �'� 6.0 STTE PREPARATI N <br /> r ., <br /> Any buried utilities within the building areas, including the previously notedi 11 to 14 foot deep <br /> !' san�tary sewer pipe and abandoned water main, shoul� be removed and/or relocated. The <br /> resulting depressions should be backfilled with a granular material such as th� onsite sand <br /> encounterecl in EP-4 near the higher, northeast portion of the parcel, or imported clean pit run <br /> ' ��'. gravel. The baokfill should be compacted to 95 percent of ehe Modified Proctor Mzximum <br /> � �� Densiry (ASTM:D 1557). An altemative to removmg the existing abandoned sanitary sewer <br /> �� and water lines would be to properly abandon them in place by pumpmg them full of grout. If <br /> this procedure is used, it should be observed by Assoc�ated Farih Sc�ences, Inc. to ven,y that <br /> 1 ��. ( the line(s) aze completely filled with grouL Site preparation should also i�iclude stripping the <br /> �� minor ve;etation and removing deleterious material from the central portion of the site. After <br /> stripping has been completed, parking and :,uilding areas may be graded to the required <br /> , elevation (following the recommendations in the Swctural Fill secuon of this repori). <br /> 1�'� � ; <br /> I �� As noted earlier, a previous wet area was observed in the eastern portion of the proposed <br /> building localion. If grading takes place during the wetter seasons, additional dramage <br /> � measures may be reqcired to prevent water from ponding in the building area. If the subecade <br /> � � buomes wet or is disturbed during site preparation, the medium dense to dense fill soils may <br /> �� be softened. All disturbed or softened so�ls must be removed prior to placing the fill, <br /> :- pavement or slab subgmde materials or footing concrete. <br /> . <br /> �-1�� , 7 n STRi1C'T[1RAL FILL <br /> i � <br /> i • We anticipate lh� finished site grade to be approximately 1 toot above the existiog grade of <br /> I �, Evergreen Way. In order to accomplish this, it appears that up to 5 fect of fill may be <br /> I ���� necessary �vithin thc lowest azea of the site. All rcierences to swcWral fill in this reporl refer <br /> � w subgrade preparation, fill type, placement and compaction of materials as discussed in this <br /> sectior,. If a percentage o(compacuon is specified under another section of this report, the <br /> value given in that section should be usc�. <br /> � 5 <br /> r' <br /> L_: <br /> - � <br /> _ s <br />