2013-09-06_REPORT - M1980244 - Laserfiche WebLink

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Iccl � • Note: An Amec field representative monitored structural fill material temperatures placed within the areas of fill during all shifts. Average structural fill temperatures were above 32 °F. Clay (SLF) Processing: Cameron Site: Clay processing resumed during this reporting period. Squaw Gulch Site: Clay stripping and stockpiling occurred during this reporting period. Underdrain System: Secondary Underdrain: No work was performed on the Secondary underdrain during this reporting period. A total of 1380 feet of Secondary underdrain has been completed. Primary Underdrain: No work was performed on the Primary underdrain during this reporting period. A total of 1280 feet of Primary underdrain has been completed. Temporary Underdrain: No work was performed on the temporary underlain during this reporting period. Tree /Slash Clearing, Chipping: Seed Masters paused operations until further notice. B) Underground Workings Exploratory excavation was performed on underground working No. 6132 and No. U6273. These sites require further excavation and exploratory efforts. Confirmatory drilling was performed on underground working No. 6132, No. 6187 during this reporting period. All drill hole locations were established on a 4 -foot center isolating any voids found. Further remediation efforts will be ongoing until remediated. Summary of the remediation efforts will follow 100% remediation. Underground working No. 6051, Concrete Plug was placed and will continue with remediation efforts until remediation is complete. A cemented rockfill is scheduled to be placed to complete this working. Underground Working No. 6122 requires geognd and will be prepared for this application as remediation efforts continue. Underground Working No. 6239, is considered remediated, 3 layers of Geogrid were placed per directive provided per project specifications. No other sites were remediated during this reporting period. Q Highway 67 Fill continued to be hauled to the southern portion of the Highway 67 embankment using several Cat 777 haul trucks and several Cat 740 haul trucks. The structural fill material was placed in an approximately 18 to 36 inch lifts by Cat D10R, John Deere 1050 and Cat D8R Dozers. The Cat CS56B vibratory, 10 -ton, smooth -drum roller completed the minimum of four passes (Method Specification Applies) over each lift surface placed. It should be noted: haul trucks, loaded and unloaded, drove over the backfill surface contributing to the overall compaction of the lift. In addition a Cat 330B excavator equipped with a jackhammer (hammer hoe) broke up the oversize material encountered. The final structural lift surface was placed on Tuesday 8.20.13 and final grading of the structural fill occurred using a GPS equipped D6R. Page 2 of 7 MLE2 WE 08.24.13.doc