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<br />r~ <br />of the embanlanent will be conshuMed to minim»m construction <br />standards and specifications of Montrose County, Colorado, for County <br />acceptance approximately 7-15 years after completion <br />3. RECOMMENDED <br />General geotechnical specifications and related notes are summarized <br />on the attached Figure 1. <br />S.1 FODNDA'PIOH ACCEPTANCE CRITERIA <br />1 <br />• <br />`~ <br />At the time of this report, 00'7 pond had been excavated to total depth <br />exposing sandstone bedrock along the entire length of the embankment <br />foundation Since excavation of the pond, 1 to 2 feM of sediment Las <br />settled into the pond bottom in the area of the embankment <br />To reduce dre~ potential for excessive settlements of the rocl~ll <br />embaal®ent, we recommend the stmcttae be founded directly oa dte <br />sandstone bedrock at the bottom of the pond. This will require that the <br />recendy deposited sedimem be removed end bedrock exposed within <br />the footprint area of the rockfdl embanlrment We recommend that a <br />representative of our firm be present during this operation to confmn <br />the presence and type of bedrock exposed in the foundation and to <br />make any adjustments to the geotcehnical specifications if necessary, <br />3.2 ROCRFILL MATERIAI, <br />u <br />t <br />~' <br />REVISED MARHC 21H16 <br />"Rockfill" is defined es wntaining less than SOYe (by weight) smaller <br />than 1-inch diameter particles and a maximum rock particle size being <br />75% of lift thickness (14 inches for !g-inch lifts, 18 inches for 24-inch <br />lifts), necessity m provide a relatively smooth surface for compamoon. <br />The rockfdl must also contain less than ] 5% (by weight) fines passing <br />Attachment 2.053(3)9- 4 <br />Attachment 2.05.3(3)-9-5 <br />