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ramp. Photo 2. Looking along the guardrail. Cracking has - PDF document

SHOP SLIDE Photo 1. Cracking across the footpath at the end of the Hwy 2 off ramp. Photo 2. Looking along the guardrail. Cracking has protruded through asphalt patch, with a drop depression in the asphalt and significant bow in the


  1. SHOP SLIDE Photo 1. Cracking across the footpath at the end of the Hwy 2 off ramp. Photo 2. Looking along the guardrail. Cracking has protruded through asphalt patch, with a drop depression in the asphalt and significant bow in the guardrail visible. Client: Alberta Transportation Date: December 12, 2011 File No.: 15-16-264 e-file: \\H\15\16-264 PH9 - Edm Page 3 of 12

  2. Photo 3. Looking across the road at the South end of the median island. Note the dip in the road at the scarp for the lower slide bowl. Cracks have visibly grown since 2010. Photo 4. Looking SE-wards along the road at the top of the lower slide bowl. No significant change since 2010. Client: Alberta Transportation Date: December 12, 2011 File No.: 15-16-264 e-file: \\H\15\16-264 PH9 - Edm Page 4 of 12

  3. Photo 5. Looking NW wards at South flank of the lower slide bowl – note the cracking across the road at the slide backscarp. Photo 6. Slide scarp below the road, either within the main lower slide bowl, or just beyond its southern flank. This scarp was first noted in 2009. Client: Alberta Transportation Date: December 12, 2011 File No.: 15-16-264 e-file: \\H\15\16-264 PH9 - Edm Page 5 of 12

  4. Photo 7. Southern end of the slide backscarp shown in Photo 6. Photo 8. Looking NW-wards along the CNR line near the toe of the slope. Client: Alberta Transportation Date: December 12, 2011 File No.: 15-16-264 e-file: \\H\15\16-264 PH9 - Edm Page 6 of 12

  5. Photo 9. Looking downslope along the 400 mm diameter sewer and 300 mm diameter water lines at the north end of the Shop Slide . In the Fall of 2010, the Town of Peace River replaced pipe racks, which are now supported on helical screw piles founded a depth of 3.7 m, re-graded the surrounding slope and covered the area with coconut matting. On May 13-14, 2011, an area to the east of the lines slumped again and the Town was re-grading the failed area. Photo 10. Waterline pipe dislodge from new seat at one of the pipe racks. Some sliding of the coconut matting was also visible around the pipe supports. Client: Alberta Transportation Date: December 12, 2011 File No.: 15-16-264 e-file: \\H\15\16-264 PH9 - Edm Page 7 of 12

  6. Photo 11. Fire hose discharge point, mid-way up the slope. The fire hose carries water from the subdrain to the north of the sewer and water lines. Flow is estimated to be 24 L/min. The fire hose had not been extended down to the tracks and as a result, a 20 m wide flow slide has now extended down to the ditch along the CNR rail line. Photo 12. Looking downslope from the fire hose discharge point at the waste berm. Notice the 20 m wide flow slide gully now present. Client: Alberta Transportation Date: December 12, 2011 File No.: 15-16-264 e-file: \\H\15\16-264 PH9 - Edm Page 8 of 12

  7. Photo 13. Toe of the slope, in the ditch along the CNR rail line, below the waste berm and fire hose discharge point. Weak/wet soil debris is now obstructing ditch flow. OVERPASS SLIDE Photo 14. Looking along the ditch at the CNR rail line. Note buckling at the toe of the concrete facing. Also note railway ballast has now filled most of the half culvert obstructing flow. Client: Alberta Transportation Date: December 12, 2011 File No.: 15-16-264 e-file: \\H\15\16-264 PH9 - Edm Page 9 of 12

  8. Photo 15. Concrete facing at the toe of the slope on the NE side of overpass. No significant changes since 2010. Photo 16. Drainage ditch on the N side of Hwy 2. There is similar flow from the spring at the overpass, and similar erosion in the ditch. Client: Alberta Transportation Date: December 12, 2011 File No.: 15-16-264 e-file: \\H\15\16-264 PH9 - Edm Page 10 of 12

  9. Photo 17. Looking at South abutment South side discharge drain pipe above drainage channel. Photo 18. Looking upstream along the gabion-lined channel on the south side of Hwy 2. The drain pipe is dripping. There is continuing gradual collapse of the gabions, presumably due to erosion of soil beneath. Client: Alberta Transportation Date: December 12, 2011 File No.: 15-16-264 e-file: \\H\15\16-264 PH9 - Edm Page 11 of 12

  10. Photo 19. Looking southwards along the regional pathway from the culvert crossing on the south side of Hwy 2. Note the increase in longitudinal cracking along the pathway since 2010. Photo 20. Looking southwest towards west abutment seat at gap with rusted H pile now visible. Client: Alberta Transportation Date: December 12, 2011 File No.: 15-16-264 e-file: \\H\15\16-264 PH9 - Edm Page 12 of 12

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