5213 23RD AVE W 2016-01-01 MF Import

• GES, Inc. 1. All distances are teped end all elevations were shot with a brunton compass. All horizontal aud vertical dimensions should be verified in the field and adjusted as required. 2. All roof and foundadon drain lines&om the back of the Kaas Residence shall be tigl►tlined down to the bottom of ihe ravine located along the north side of the property. Pipe should be anchored to the slape as necessary to prolubit movement of drainpipe caused by passage of water through the pipe. This may be accomplished by a "U"shaped#4 rebar driven a minimum 18"into tl►e slope around the pipe. 3. Loose and unstable materials shall be removed to a ma�dmum 1H:1V slope or to natural undisturbed soil along sideslopes prior to placing rock fill. 4. The base of the rock 514, base rock, st�all be keyed into nstural, undisturbed soil conSrmed by GES, Inc. Base rock shall consist ofminimum 2 to 3 man rock placed at a maximum 1H:1V batter at the face. Base rock shall be a minimum 10 ft. tluck. Rock fill shall grade gradually to heavy loose riprap chinked with quarry spalls as necessary to fill voids bigger than 4". A minimum 6"layer of quarry spalls shall be placed over a strong, durable Slter fabric along the base af the rock fill as a drainage layer for seepage. 5. Ma�dmum inclivation of the rock fill slope shall not exceed 1.SH:1V. Height of the base key rock shall be determined in the field by the final con6guration of the remediated slope. 6. Rock fill used to re-establish slide area shall meet either the requirement for Light Loase to Heavy ' Loase Riprap in accordance with the 1994 WSDOT Standard Specifrcationr sectron 9-13.1(2), or Quarry � Spal/s in accordance with sectron 9-13.6. Rock fill shall be placed in layers no more than 1.5 ft. in � thickness. Rock fill shall be placed and compacted so that it is a dght, cohesive unit. 7. Rock fili side siopes shall be contoured as necessary in the field to meet e�dstiug contours. 8. In place materials between the top of the slide scarp and the back of the residence s6ould be monitored during construction for indications of instability or movement. Any indications of movement, tensi�n cracking or instability should be reported to GfiS, Inc immediately so that they may be observed and any necessary recommendations made to restabilize the situation. 9. Filter fabric should be placed along the top of the re-establislied rock slope and covere�! with a ma�dmum 18" �f sandy top soil graded to meet sutrounding yard grades and elevations. NOTES, DE�IGN AND CONSTRUCTION SPECi�'�rATIONS Kaas Residence Slide Repair 97-OS-40 pg. 9of9 �