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10 <br />Soil Nail Wall <br />The soil nail walls are flanked by rockery walls at each end. <br />The soil nail wall and rockery walls abut <br />SRC/DC <br />See "Rockery Wall" Comment 3 above. The soil nail walls may <br />against each other eliminating the need <br />need to be extended. <br />for extending the soil nail walls. It is <br />routine to end a rockery next to a <br />structural wall, if the rockery has been <br />approved by the Geotech of Record for <br />the ground conditions, which we <br />understand to be the case on this project. <br />11 <br />TESC Sheet D-1.3 shows a "Storm Chamber System #1" <br />Global stability of the wall was checked <br />SRC/DC <br />directly in front of the wall. The design and depth of this <br />during the temporary condition where the <br />system is not clear. It is anticipated to extend at least several <br />excavation pit for the storm chamber <br />below grade. The impact of this system on the wall design is <br />(about 7 feet deep) was completed in <br />not clear. This condition should be reviewed and the wall <br />front of the soil nail wall. A minimum <br />design revised as needed. <br />global safety factor of 1.27 was calculated <br />for the temporary excavation condition. <br />Temporary slopes are typically required to <br />have a safety factor greater than 1.25. <br />Page 7 of 7 <br />