1920 75TH ST SE 2016-01-01 MF Import

Conifer Apartments September fl, 197G Page Six The piles should be desi9,ied as end bearin9 piles with a bearing capacity of 20,000 pounds per square foot based on the nomin�l diameter of the piling. No allno-rance is necessary for side friction o; downdrag which are expected to be small r.ompared to the end bearing capacity of the piles. The lo�v retaining wall between units 1916 and 1918 is badly cracked. 4!e recommend that it be reconstructed and physically separated from the building. Carports, retaining a�alls bet�aeen carports, and porches may cither be pile supported or separated from the buildings and supported on shallow spread footings in the fill. Since structures supported on fill will continue to settle somewhat, it is important that they be physically separated from the buildings. Foun�ations for structures or walls supported on the fill may be designed usin9 a bearin9 value of 1500 powids per square foot for footin�s at least 14 inches wide and bottomed 12 inches or more beloo-r the loti;est adjacent grade. We expect that settlement of ttie pile foundations �aill be on the order of 1/2 inch or less. There is the possibility of some residual settlement rrmaining in the fill just north of the area recommended for pilc support, and there also may be some residual stresses in the build- ing from settlement that has already occurred. This may lead to crackin9 as much as a year or two in the future, which may re�uire patch- in9 or repair. 41e expect th�t tliis �aill be very minor. CNTRAP;C�S P,ND UTILITIFS Utilittes, with thc exception of sanitary se��ers, should bc arranged so that they enter the northern 1/2 of the building and are entircly supported o�� the building frame. The sanitary sewer must lcave the relativel,y rigid and nonsettlin9 support of the buildin9s and entcr the fill, which will continue to sM.tl�. llr. reronunend th�it a coinbination