2030 GRAND AVE 2018-01-01 MF Import

� Subsurface Erpinrarion and 2026 Grmid Ai•emrc Georec/wical Engineering Report � Everert It'nshrneton Project and Site Condilions IThe L-shaped property is roughly 190 feet east-west by 100 feet north-south. The iopography uf the propercy gendy slopes down towar�is the west within 100 feet o�`Grand Avenue and then ( slopes steepty down �owards the west. Steep slopes on the west end of the property were estimated visually at 60 to 80 percent inclination, decreasing towards the west. Slope height was estimated at 60 fcet with d�e toe of the slope located near titarine View Drive. IAs currendy proposed, the eristing homes will be demolished. A new three-story wood- framed condominium witli a concrete basement garage will be constructed. Gxcavation cuts ( along the e:ist end of the buiiding will b:: approx.imately 9 feet below current grade and � approximately 15 feet west of the side�valk of Grand A��cnue. 1'he west end of the buildint* is proposed approximatrl�� 9 f�et from the top of the ��est-facing steep slope. I 3.0 SUDSURPACE E-XPLORA'I'ION IOur tield study included completine geotechnical exploration borings and performing geologic I smdies to gain suUsurface informatiun about the sire. The various rypes of sediments, as well as the depths where characteristics oP the sediments changed, are indicared on the exploration logs presented in the r�ppcndix. The depqis indicated on the logs where conditions chaneed i i71S� ��ni'C'..,CII[ 'b'C.^.:�IlUCI:'11 ygr:;'.[!Q.^.5 }JatNCC'R S�'�11I1i3!1[ tv e•c .,p__. The cmulusions and recommendations presented in this report are based on the three I exploration borings completed for this study. The number, locations, and depdis of the explorations were completed within site and budgetary constraints. Qecause of the namre of exploratory work below eround, estrapolation of subsurface conditions Uetween field + exploratiuns is necessary. It shoutd be noted that differing subsurPace conditiuns may � sometimes be present due to the random nature of deposition and d�e alteration of topography � by past grading and/or filling. The nature and extent of any variations beaveen the field esplorations may not become fully evideut until construction. If variations are obsen�ed at that time, it may be necessary tu rc-evaluate specitic recommendations in this report and make � appropriate changes. 3.1 Gxploration 13orines � 1'he exploration borings ��rre cor�iplete.l on �da� l7, 2000, by advancing a hollow-stem auger �vith a limite� access track-nwmue� drill rit: under subcontract to our tirm. During the drilling f prucess, samples wcrc obtained at genr::illy 2'G- or 5-foot depth intervals. The borines were � coneinuousl�� observed and lo�,ged by a ceoteclinical eneineer from our firm. The exploration lugs presented in the :\ppcndis arc based on the heid lozs, drilline action, and inspection of ithc santples sccur�d. I �� g ,�ppp .15SOClATED E.4RTFf SClENCES, LVC. � lU'dn-KEt1).tl9dl-(D-D..Lre-tP)-lt7'n �'Zge �