4707 GLENHAVEN DR 2016-01-01 MF Import

; .. ._. . e � � OFFICE 12061 632•8020 ' RES. 1206� 364•BB74 � w � � WILLIAM L. SHANNUN CONSUITING ENG�NEER I1C5 NORTM 38TH ST. PA. �OX C-J0373 � CCC��u SEAT7LE. WASHINGTCN 98��3 �� QHH �U�`� Z�� 1 �a1 �.T, yT.H W f� � � � Mr. ni�har� Sullivan N 2722 COlbv, Suitz 722 � � �" Evcrzt.`.. 'dA 93�01 M � RE: PROPEiiT.Y GF HOIvAnC �.: ,..� : ::� � � �. Dear Mr. Suliivan: � y At yo�_r re�uest , i wal '�:ed o�•'r tne aoove pr�Fer-.y .aith you and the owner, H Hcward Goldnera, on ,'une i2 , 1984. Aaai� on Jul: 13, ; visitrd the property �� to e>amine so� 1 �xposures in tne general vicinity. This letter presents my cbservations. and preliminary opinions ane reccramendations concerning develop- � m�� o; che p�operty by subdi•:;sion into f�ur parcels, each approximately y one-hai ' acre in size. O fn The ;.ropert� consiSLs ur rnc �orth-sou' h *�e�di ,�n narrow ridges W��`� e � �noderatel;; st��, cloped ravine Uetwee^. r r ,es , a long, �ery steeP slope to the east to a creek , 3no a short slope to �ood Plsce on the west. Attached is a � t000graphic rap of the property and an eas�-we;t orofile generally through the � �ent2r o` the proFerty, but oriented norm'�� to contours Lo �llustrate slopes. I �-1 The entire area is wooded wit� both conifers and deciduous trees. Remnants r,f stumps indi��a:e th� arza was logced nany years ago. The older conifers on the slopes ce�=raily are vert�czi with <_ome cur�eo at the basz ind�cating small �oW�r.i � j ��zp , tiaU ve ^rush, :erns and �ther around cover arE �early �i �� r�ntinucus throuah.uu: trA area. Approxim:[e y ^�1 'eet zast o` the east prnperty boundary is an erosional gully ��1_' developec L;� runoff fro�i the north edge o` '+�cod Road. At the present time there 15 ': '�:r� nzsir in the road ditc� with a i2-inch corr�gaT.ed metal pipe whicn d> > :na�yes sto".� Y;a�er aPpr�xinately 50 `:�et from the edge of pavement ont� tha >:ee: - inpec �c��e, ^� �h> end of the pipe is a near uertical L1�� exposure aporoximately l5 `eet high as a resul: of erosion by storn water. Exposed is z tan c0�^�ed :,eddeG d?nse `ine sand. „ppdrentiv prior to tne irstailation of the catch basin and 12" corrugated L1�i meta' p�Pe, st�rm water from �Jood Road was chan:ieled from the ditch down the � slope at a location immPdia:ely cownstream o` che catch basin. In the resuiting erosional �ullv at •an elevation above the tan sand is zxposed a brown dense, slightly silty, sana and gravei , aroba�ly yiacial till .