5300 GLENWOOD AVE 2018-01-02 MF Import

, c Glcnwood Terracc Filc Number 12G994 May 12, 1994 Pagc 9 significant ground water is not prescnt at the time of construction. Wc expcct U�at die installation of a cut- off drain along Uie cut slope mny reduce the water 4�ble a�ross the sile. Slope Stability Ceneral: Slandard recommcndations for fill slopes are: 1) 5lopes consirucled of structural fill should nol be steeper than a 2!I:1 V and lhe face of the slope compactcd. 2) Slopes consiructed of common Cills which contain some organics and are ligirtly compacted should not be stecper th.�n a 3H:IV. Most of the fill slopes on site are on the order of 3f1:IV and slightly stccper. These slopes aro not considered susceplible to dixp seatcd failures. Some shallow failures and sloughing could occur due to the organic content of the fill and ilu potcntial for ground water. M1tost oC these slopes are located off-site and in our opinion, except for tlie shallow sloughs�vhich would be mostly cosmelic should not impact thc sitc dcvelopment. Fill Slope: Tlie fill on Uie north ccntral portion of lhe slope is expecla! lo perfomi as discussed above. 'Ilie fill slope cxtcnds across thc property line into the neighboring property. 'flie buildings in this area will be foundcd on dcep foundations and would not be expected to be impacted by surfucinl movemcnts on the slope. Cut Slope: A hillside witli:m exposed face is located in lhe souilicrn portion of the site. 77ie steep portion of Uiis cxposal faccd is plaim�d �o bc cut back to a more slablc inclination. Tlic perma��ent slopc inclination should not be steeper lhan a 2H:IV. We expect the ouM�ash to erode due to the natu;: of the uniform non-cohcsivc sands. Thc cut slopc should bc vcgctatcd to rcducc surfacc crosion. We do not e�pect signifialnt faihires on this slope bu[some raveling:md erosion could cecur. We recommend that the structures be set back Gom die tce of U�e slope enougli ta allow equipment to access any material that may accunwlare at d�e tce oF die slope. 'fhe apparcnt setbacks sho��n on the plans of 25 feet should be more Uian cnough spacc to allow for cicaning. , Wc cxpect somc growid waler mny exist at thc tce of qie slope. Water seeping from the tce of thc slope oRcn c:m create instabilily and increasc the chance of small slough-t}Pe failures. Cut-of3 drains or rock bla�ilcets may be rcquired at the tce to reduce crosion, itsigns o(ground watcr arc obscrved. Rubble Fill: The nibble fill slopc is also considered stnble with respect to decp scated failures but su�cial failures could occur. Wc rccommend thc sa�ne typc of sctback as described above to allow for cleaning at thc tae of U�e slope in tlu event that sloughs or erosion cecurs. �lELSON-COUVRETTE& ASSOCIATES, INC. �FB-23-1qa5 12;�� 2�E AHS 2510 g�,7; P.11