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Mr. Stephen G. Spartz <br />GME Project No. 6721 <br />March 20, 1997 <br />As an alternative, you could consider restraining the boulders by the <br />use of heavy gauge, galvanized wire mesh which is placed in front of <br />the boulders and pinned into the hillside through the use of earth <br />anchors. The wire mesh could be placed such that it would be, for the <br />most part, hidden from view by the vegetative growth. We envision that <br />this scheme would entail removing selective boulders and installing <br />foot long, 6 inch diameter helical earth anchors into the hillside at <br />approximately 5 to 6 foot horizontal spacings. It would be important <br />to have appropriate structural connections from the earth anchors to <br />the wire mesh, utilizing steel bearing places or similar devices. <br />Please be advised that we were requested to provide an opinion <br />concerning local stability of the boulders only. Our scope of work <br />does not include global stability of the hillside, that is, stability <br />of the soil beyond the boulders. If you have any questions or need <br />further assistance, please do not hesitate to call us. <br />Sinceisly, <br />GME CC'ilSULTANTS, INC.•'A <br />Greg^ory^. Reuter, P.E. <br />Senior Project Engineer <br />Mervyn Mtndess, P.E. <br />Principal Geotechnical Engineer <br />h i <br />/I <br />GRR:MM:jm <br />c:\grr\672l.ltr