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• <br />with the back of the CAT 330 excavator bucket. All backfill material was free of organic material, ice and snow and <br />are considered remediated as specified. <br />C) Highway 67 <br />Fill continued to be hauled to the southern portion of the Highway 67 embankment using several Cat 777 haul <br />trucks and several Cat 740 haul trucks. <br />The structural fill material was placed in an approximately 18 to 36 inch lifts by Cat D10R, John Deere 1050 and <br />Cat D8R Dozers. The Cat CS56B vibratory, 10 -ton, smooth -drum roller completed the minimum of four passes <br />(Method Specification Applies) over each lift surface placed. It should be noted: haul trucks, loaded and unloaded, <br />drove over the backfill surface contributing to the overall compaction of the lift. In addition a Cat 330B excavator <br />equipped with a jackhammer (hammer hoe) broke up the oversize material encountered. <br />A GPS dozer was observed slope contouring the western downstream slope of the embankment and is expected <br />to continue. <br />It should be noted; during this reporting period, cracks along the edge of the existing why 67 embankment were <br />observed appearing. It was determined that the slope would require buttressing. The contractor placed structural fill <br />materials along the existing slope of Nvy 67 the morning of August 141h. The area continues to be monitored and <br />no additional cracking has occurred. <br />A proposed R40 material to be used was obtained and returned to Amec's laboratory for testing. Results indicated <br />that the material sampled meet the R40 value. <br />South MSE Wall: <br />The contractor continued preparing the subgrade using one hammer hoe along the MSE wall foundation alignment. <br />Backfill materials and face rock were hauled to site early in the week. Leveling pad was prepared and accepted for <br />placement of welded wire baskets. Subgrade acceptance was performed early in the reporting period, allowing the <br />contractor to proceed with installation of the MSE wall components. <br />Face rock material was tested in the field for resistivity and it was determined that material being used meets the <br />requirements per field testing. In addition reinforced fill materials were sampled in our laboratory for gradation <br />analysis and meet the specification requirements. <br />MSE wall components continue to be installed per plans and specifications. <br />H) Storm Water Management <br />Best Management Practices (BMP) are being performed. Erosion control efforts took place during this reporting <br />period. <br />COA ACTIVITIES: _ <br />1) Field Activities: Observation of construction activities: production drilling, Cut to Fill ADR Haul Road (HR), HWY 67 <br />embankment fill PSSA Toe Berm Fill placement and compaction, MSE wall construction, Underground remediation and <br />field sampling were performed during this reporting period as required per project specifications. <br />11) Laboratory Activities: Laboratory testing continued with Permeability, Particle Size Distribution, Atterberg Limits, <br />Moisture - Density, gradations and material classification and identifications and material sampling were performed during <br />this reporting period as required. <br />Page 3 of 7 MLE2 WE 08.17.13.doc <br />