5300 GLENWOOD AVE 2018-01-02 MF Import

. i Glenwood 7'emce filcNumber 126994 M11ay 12, 1994 Pagc 3 7. Providc recommendations for the detenlion pond. R. Prepare a«�rittcn report to documcnt our findings nnd recommenr ttions. SITE CONDITIONS Surfnce Cenerel: The site covcrs approximatcly I! acres v�d consists of a��open area in the north central portion surcounded by wooded areas to Uia east, south and west. 71ic site is rougldy rectangular in shapc, wilh tlic existing rosidential area and a section ui the southa3st comer not being part of tliis developmcnt. 'ilu main part of tl�e site is approximatcly 435 fect in the north lo svuth direction and approximately 925 feM u� d�e eazt to wcst dircction. Tl�e narrow area on the east side is approximalcly 250 feet in dre nortli to south direction :u�d 300 feet in the east to tvest direction. Near the middle of the site, a creck crosscs from thc souW to Oic nortl�cast dirough a culvcrt. Mother crcck runs from south to the north in the westem portion of the site. Both creeks and ncarby arrss have becn identificd by oUicrs as wetlands. There is a gravel access road extending Gom Glenwood Avenue, across approximatcly tlic ecntcr of lt�c site, to the �cedands on d�c wcst sidc. Thc planncd privatc road will bc in thc approximatc location of thc cxisting acwss road. �1ost of tlie surface :md subsurface conditions of U�c sitc ditTer from each oll�er due to the original tertain and Ihc past usage of Uic land. 'Ihcrefore, for purposes of clnrity, we have subdivided dic sita conditions into four nreas: fill slope, cut slope, dctenlion pond and rubble fill. The r.me subsections havc becn usccl in Uie Desien Recommendation sectii �of this report. Fill Slope Aren: 'llie north cenlral portion oCthe sile is rclative flat wilh the cxception of a modcrate to stcep do�mward slopc towards the north. 'Ihc slopc extends beyond thc nortlicm property line. At the west end oCthe slope, the gradient is do�m to the north at appro.�cimately B degrces for 22 feet. At this point Uie slopc crosscs Uic norqi property linc and increases to approximntcly 17 degrees. 'Ihe vertical relief across this poAion of lhe slope is on dic order of approximately 20 feet. Tl�c slope angles and vertical relicf diruinishes to�eards Qic cast along the nortlicro slope. The topography on this portion of the site appcars to luvc b�Yn crcatcd by filling operations aRcr its use:u a smid mid gra��el pit. Cut Slope Area: A small east to west trending ridgc is localcd in tJie soutl�central portion of the sita 'Ihe nortl� tace oCthis ridgc has bocn cxcavated(most likcly when thc site was quarricd)and is very steep. 'Il�e facc o(lhis slopc��as measurcd to be on the order of 65 to �0 dcgrces. Tlie soutl�siJe of Uic ridge slopcs do�� at about 2C to 31 degrees lowards a crcck. 'ILe toLil rclicf of lhe ridge is on tt�e ordcr of 30 l0 35 fcct. NELSON-COUVRETTE&ASSOCIATES, INC. FFR-23-1996 12�f_11 206 AB1 251fJ 96i P.95