5129 CHINOOK DR 2016-01-01 MF Import

i�a'i��, 1996 p3:a? ^063a70d;5 SHa:N� �: FGTFN Fa�:,E 03 ' � � • � "- '--=-._____---- �, ,.. � ' - rt�1:=f'- � � , . - .�,�� ,,�_� GEOTECMNICAL ENOINEERINfi STUDY � Lob 10, 11, 12, �nd 19 of Subrook� Hiphl�nd• � Oc��n Awnu� antl Chlnook Drlw , Ewntt,Wnhlnpton IThis report pieasnts tha Mdings and recommend�lions oi our qeot�chnlcal enqinearinp stutly for the four residential lots in the Seabrooke Hiphiands subdivislon in Everett. The generei Iocation of Ithe site is iilustrated on the Vicinity M�p, Plale 1. The developmant of the proparty is in the planninp stape, and datailed pl�ns wers nol mads aveilable to us. The lot plans provid�d to us show lol Ilnee end old topopr�phy. W� understand that each lot wili bo developod with a resitlence. The hous� footprints hsvo not be�n detertnin�d. �TE C DI71D�1$ I �L�1� The four iots aro locateo m the Seehrooke H�9hl:�ndc subdivision, which overlooks Edpaweter and the Puyet Sound. The soulhom lots, 10 and 11, are sep�reted from Lots 12 and 13 by Chinook Drive, and Ocaen Avanue bordera the entire site to the eeet. All four lote ati undev�loped end covered with low to medium•hiph yra«. Two IarQ� Vees are loc�tad on the eeatem portion o} Lot 13, but no vees prow cn the olhrr lols Tn•topopraphy oi the elle and surroundinfl an� pen�nliy pontly descends to tha north, end the two lots to the soulh of Chfnook Drivo ar� ralativsly 8at. Residences have been conswcted on lhe propertias to the south of the site, and npradfnp on these atljacent sitas has res�tted fn some shoA fill slopea alonp the seulham edp� of Lols �0 and 1 t. It epoears from tne prov�ded plot maps and our fia�d reconnaUsance thet parte of these fill elopes ma% mtruda orto l,ot 10. The subdivislon lots to the w�st ot the subJaet sile u� unaevelope�i. T�e northem adpe ot the site Is borde�ed by an �eces� roa4 that extends to a qerape loca�. + lo lhe site's noMweat. Th� naturai yrede of lh� are� is vi�ibia to th� noM oi this access road, ar�J It appears that tha eastem lots are IocateC in en oltl ravin� lnat wa:fillsC. � ''iYpiu ac� I The subsu�face cor.d�tlons Nere exp�orea by excavating elpht test pits at the approximate locations shown or� the Site Explorat�on Plan, Pl�te 2. Th� lops tor thre� bonnp• that we conducted in 1990 for an access roed along the northem sid� o� Lots 12 an� 13 h�v� also b��n reviewed lor this report. (See Plates 7 - 9.) The field exploratlon program �vos based upon tho proposeq construc�ion and required desiqn criteria, the efto topopraphy and ecc�ss, the subsurface conditions reve�l�d durinp excae�ation, the scope of waAc outlined in our proposal, ond the tima and budpet constralnt�. I 7he test pits were excarated on February 27, 1998 with a rubbentired backhoe. A p�otechntcal enfliraer t!cm o�r staH obsdrved tne excavation proco�s, lopped the last pits, end obt�in�d represer,tat:ve samples ot the soil encountered. "Grab" samples of seiect�d subsuriace soll wero col�ectbd (rcm the holes The tesi pit ioQs ai e arached to this repoR as Plates 3 through 6. I ■ I