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amec-O <br />Earth & Environmental <br />J8+00 (+/-), approximately 0 to 300 feet left of centerline. A CAT D-9 dozer was used to rip <br />the subgrade surface to a depth of 6" to 8". The subgrade was then moisture conditioned using <br />a CAT 773 water tuck and compacted using a 10-ton vibratory smooth drum compactor. The <br />entire surface of the subgrade was compacted with at least 4-passes. These areas were <br />inspected by an AMEC representative and accepted for structural fill placement. <br />E) Cut to Fill <br />1) VLF <br />A John Deere 850D excavator, a Komatsu 800 excavator, a CAT 375 excavator, and a CAT <br />385 track excavator, excavated structural fill material from the following areas: between <br />stations A8+50 (+/-) and A9+00 (+/-), approximately 25 left of centerline to 25 feet right of <br />centerline; between stations A13+00 (+/-) and A14+00 (+/-), approximately 30 to 75 feet left <br />of centerline; between stations A30+00 (+/-) and A34+00 (+/-), approximately 200 to 400 feet <br />left of centerline; between H30+00 (+/-) and H34+00 (+/-), approximately 0 to 75 feet left of <br />centerline; between stations H50+00 (+/-) and H52+00 (+/-), approximately 25 to 75 right of <br />centerline; and between J8+00 (+/-) and J15+00 (+/-), approximately 400 feet left of centerline <br />to 100 feet right of centerline. The structural fill material was transported using 777 haul trucks <br />and 40-ton articulating haul trucks. <br />Structural fill was placed between stations A22+00 (+/-) and A30+00 (+/-), approximately 0 to <br />75 feet right of centerline. Structural fill was placed using CAT dozers in 18" to 24" lifts <br />(based on rock size). Moisture conditioning of the fill was performed using a CAT 773-water <br />truck. Each lift was compacted with a 10-ton smooth drum vibratory compactor passing over <br />the entire surface at least 4 times (method compaction technique is applicable). <br />Structural fill was placed between stations A37+00 (+/-) and A40+00 (+/-), approximately 50 <br />to 100 feet right of centerline. Structural fill was placed using CAT dozers in 18" to 24" lifts <br />(based on rock size). Moisture conditioning of the fill was performed using a CAT 773-water <br />truck. Each lift was compacted with a 10-ton smooth drum vibratory compactor passing over <br />the entire surface at least 4 times (method compaction technique is applicable). <br />Structural fill was placed between stations J2+00 (+/-) and J4+00 (+/-), approximately 30 to <br />100 feet left of centerline. Structural fill was placed using CAT dozers in 18" to 24" lifts <br />(based on rock size). Moisture conditioning of the fill was performed using a CAT 773-water <br />truck. Each lift was compacted with a 10-ton smooth drum vibratory compactor passing over <br />the entire surface at least 4 times (method compaction technique is applicable). <br />Structural fill was placed between stations K4+00 (+/-) and K14+00 (+/-), approximately 0 to <br />250 feet right of centerline. Structural fill was placed using CAT dozers in 18" to 24" lifts <br />(based on rock size). Moisture conditioning of the fill was performed using a CAT 773-water <br />truck. Each lift was compacted with a 10-ton smooth drum vibratory compactor passing over <br />the entire surface at least 4 times (method compaction technique is applicable). <br />Slope scaling and slope preparation were performed through out the week using a CAT 345 <br />excavator and a CAT 330 excavator. <br />Sheet 2 of 7 <br />VLF Weekly Report WE 07.25.09.D.doc