2013-02-20_REPORT - M1980244 (3)

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cc &v B) Underground Workings During the reporting period the contractor continued to work around the vicinity of historical underground working , opening #372 Amec #5126, winding the ADR haul route. At approximately 1500hrs on Feb 8th a D6 dozer cut 2 drill rig platforms for delineation drilling. Schedule for delineation drilling to is set for Monday the 11th of February and will continue to follow up. No other underground workings were remediated during this reporting period. C) Highway 67 Tree removal continues in the area of HWY 67 Realignment Project. An Amec Field Representative observed tree removal in the area of the embankment thru the reporting period. This work is to be ongoing in preparation of the HWY 67 realignment project. On Monday, February 4th, two Compressive strength breaks were performed in our laboratory for the previously placed (Jan 31st) concrete which was placed for the east pad of the temporary concrete crossing as part of existing state Hwy 67. Results are as follows: Specimen: Hwy67 -3 -1, Age 3 days, Load 44990 Ibs, Strength 3580 psi, 85% of design strength. Specimen: Hwy67 -4 -1, Age 3 days, Load 51490 Ibs, Strength 4100 psi, 98% of design strength On Tuesday, February 5th, two Compressive strength breaks were performed in our laboratory for the previously placed concrete (Jan 221 which was placed for the west pad of the temporary concrete crossing as part of existing state Hwy 67. Results are as follows: Specimen: Hwy67 -2 -3, Age 14 days, Load 54130 Ibs, Strength 4310 psi, 103% of design strength. Specimen: Hwy67 -1 -3, Age 14 days, Load 36040 Ibs, Strength 2870 psi, 68% of design strength On Thursday, Feb 7th, two Compressive strength breaks were performed in our laboratory for the previously placed concrete (Jan 31st) which was placed for the east portion of the highway crossing as part of existing state Hwy 67. Results are as follows: Specimen: Hwy67 -3 -2, Age 7 days, Load 48525 Ibs, Strength 3860 psi, 92% of design strength Specimen: Hwy67 -4 -2, Age 7 days, Load 55300 Ibs, Strength 4400 psi, 105% of design strength Compressive strength testing will continue to be performed on scheduled testing days until complete. On February 7th, MHT #3 was removed allowing traffic to pass on the south and north lanes of existing Hwy 67.. Timed Traffic lights were installed on each end of the crossing and are manually operated at this time. No other work was performed for the existing HWY 67 crossing during this reporting period. H) Storm Water Management amec9 A) Best Management Practices (BMP) are being performed. Inspections continue and there have been no issues identified. Page 2 of 6 MLE2 WE 02.09.13.doc