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amen <br />Earth & Environmental <br />B) Cut to Fill <br />1) LOB Delivery Road <br />Fill containing greater than 24" particles was placed between stations 34+00 (+/-) and 40+00 <br />(+/-) to complete the LOB Delivery Road to grade. Night work: Cut from stations 33 +00 (+/-) <br />to 26+00 (+/-) to fill from stations 42+00 (+/-) tying into the existing haul road. <br />2) LOB Conveyor Corridor <br />Structural fill placement was completed at Transfer Station #6 and adjacent conveyor corridor. <br />Structural fill material was spread in 18 to 24" lifts (depending on rock size) and moisture <br />conditioned using a CAT D6 dozer and 773 water truck. Compaction efforts were performed <br />using a CAT 563 vibratory smooth drum compactor passing over the entire surface of each lift <br />at least 4 times. This process was performed in accordance with the method specification and a <br />previously established test fill. Structural fill material was hauled from the LOB Delivery Road <br />cut areas using 40-Ton articulating haul trucks. Ambient temperatures were monitored during <br />fill placement. <br />Structural backfill was completed at Transfer Station #4 retaining wall and pad. Fill was placed <br />per CEntry specifications in 6 to 8-inch loose lifts, and compacted to a minimum of 95% of <br />Modified Proctor (ASTM D-1557) using a walk-behind compactor next to the structure. <br />Moisture contents were at or near optimum. The remaining area of the pad was filled using <br />Structural Fill in accordance with AMEC specifications. The structural Fill was placed in 24" <br />lifts and moisture conditioned prior to compaction efforts. A CAT smooth drum vibratory <br />roller passed over the entire lift surface a minimum of 4 passes. Both fill materials were placed <br />using one CAT 966 loader and one CAT D-6 dozer. AMEC monitored the placement of the <br />fill and ambient temperatures were monitored. <br />Approximately 70 cubic yards of transit mixed concrete was placed for the retaining wall at <br />Transfer Station #5. Field physical properties results were, 5.5-inch slump and an air content <br />of 7.0% (Testing performed by Ground Engineering). AMEC cast three concrete cylinders for <br />Quality Assurance testing. <br />C) LOB Pad Drain Cover Fill <br />1) Placement <br />Drain Cover Fill placement was completed on the LOB Pad. A D6R LGP dozer was used to <br />spread the Drain Cover Fill in a 24" lift. One CAT smooth drum roller was used to compact the <br />entire surface of Drain Cover Fill a minimum of four passes (static). An AMEC representative <br />monitored Drain Cover Fill constantly during placement. Two additional record samples <br />(LOBDCF-2 and 3-R) were obtained during placement. Survey data was obtained for thickness <br />verification. <br />D) LOB Pad Structural Fill <br />1) Placement <br />Structural Fill was hauled from the LOB Delivery Road cut using available 40-Ton articulating <br />haul trucks to the LOB Pad. Structural Fill was placed in 24" lifts using one CAT D6R LGP <br />dozer. The fill was moisture conditioned using a water truck. Compaction was achieved using <br />Sheet 2 of 10 <br />LOB Weekly Report WE 05.09.09.D