4633 GLENWOOD AVE 2016-01-01 MF Import

�] � l9 H . � �V p G C H � H y JN 88001 y � �C �ennis Novak page 2 K � Januacy 14, 1988 �°o � �°a N M � H � CONCLUSIONS AND RECOMHENDATIONS xnoo H � � N hUUNDATIONS H 5� N y We recommend lhat the house toundations be extended to the ?S o m haed silts . '1'�ie existing fill soils , while they have � � r� essentially consolidated undec theic own weight, would � y consolidate futthet undec the weight ot the building . This co u l a c a u s e u n a c c e p t a b l e d i t t e cential settlement. 9'hete are chcee toundations altecnatives . Une is to extend conventional YooCings down to bearing soil by increasin9 the length oE the tooting stemwall . In the back ot on the east side it appeacs that this could be accomplished relatively easily. However, on the west side , a deep excavation would be cequiced . Another similiax alternative is to dig a tzench with a backhoe to beacing soils and Lill the tzench with lean-mix conccete. lhis avoids the need oY focming the stemwall and i� otten cost ettective. '1'he third alternative is to place the sttucture on deilled, /� � conceete-tilled piets . The piets may be drilled by open hole � ��' methods �covided that the conccete is placed immediately atter each hole is driL' ed . Eighteen (ld ) inch minimum diameter piecs extending at least five feet into the hacd silts should be used . 1 � 1he piecs may be assumed to have an allo wable capacity ot twenty �-�. (20) tons pet piec . I � ROCKERIES I !�� �' We undecstand that a cockery is to be constcucted to pcotect the soil slope as a cut will be necessacy toc dciveway construction. 7'his cockeiy would be on the ordee ot ten to �'""� twelve teet in heighe fox a shoct distance. It is ouc opinion that a peo�erly constructed rockery is teasible. A cockety only �covides erosion pco[ection of an otherwise stable slope. I�ased on ouc obsecvation ot the exp�sed soils, it is ouc opinion that � �'� such a cut kould be stable. The Lockery should only be used in ,�� ' Lxont ot stable cuts or in feont of Yills less than fouc teeC in height . Vertical slopes in Yills gceater than touc teet in height should be suppocted by cetaining walls o[ othec � +-' engineeced systdns . We ace available to discuss such lanslnare st�uctures with you when mote complete grading p available. Rhe rockecy should be constructed in accordance with Cily rockecyC fromsthedtopsto aWdist nee o�f sixafeet down ,l cl nsilst`oY 6EOTGCII CONSULTANTS INC.