Attachment_6_Photos_for_2015_HSS_Inspection_SOW.PDF
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Photo 1. USACE 4‐legged sling ready to lift Gate 1.
US Army 2015 H d li St l St t S f Att h t 7
Photo 2. Lifting one side of 2‐piece gate hatch cover, about 4,000 pounds.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Date:
07 March 2015
Expand existing wheel well openings in 1 ½” thick steel plate for new dogging bar each end on upstream face of operating gates 1-4. Note adjacent positioning spring not h k t h SK 1shown on sketch SK-1.
Photo 3. Upstream face of Gate 2 showing lower wheel well area.
Ultrasonic inspection of this double bevel, 2-sided groove weld in 15/16” thick plate. Full width (28’ 9 ¼”) for gates 1-4, and 6.
New dogging bar through this location at each end of Gates 1-4. Cut new 4” square openings th h 15/16” thi k t l l t thi id
US Army 2015 H d li St l St t S f Att h t 7
Photo 4. Downstream face of Operating Gate 1.
through 15/16” thick steel plate this side.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 5. Gate 1 in approximate inspection position w/ 8 orifice plates installed.
2015 H d li St l St t S f Att h t 7
Photo 6. Gate 1 orifice plate removal.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 7. Positioning spring on upstream face, upper wheel shown – similar at lower wheel.
2015 H d li St l St t S f Att h t 7
Photo 8. Field connection tabs and gouging on inside of gate adjacent to weld to be UT’d.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 9. Cleaning gate interior with shovel and shop vacuum.
2015 H d li St l St t S f Att h t 7
Photo 10. Typical fine sand and wood debris inside gate cavities before cleaning.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 11. Gate cavity cleaned for inspection.
2015 H d li St l St t S f Att h t 7
Photo 12. Using shovel to clean interior gate cavity for inspection.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 13. 5/8 – 11 NC flat head orifice plate bolts coated with anti‐seize prior to replacement.
2015 H d li St l St t S f Att h t 7
Photo 14. “Match marking” of orifice plates.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 15. Nylon slings hitched around orifice plate lifting lugs ready for plate removal.
2015 H d li St l St t S f Att h t 7
Photo 16. “Match marking” of orifice plates and nylon sling in place for orifice plate removal.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 17. Gate #4 marked with weight of 92,500 pounds.
2015 H d li St l St t S f Att h t 7
Photo 18. Fish Ladder Bulkhead, 8,000 pounds.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 19. Fish Ladder Gate, 8,900 pounds.
2015 H d li St l St t S f Att h t 7
Photo 20. Gate 5 (2 piece gate) laid on dunnage.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 21. Gate 6 spreader bar and 4‐legged sling storage.
2015 H d li St l St t S f Att h t 7
Photo 22. North Fishway Gate, 11,900 pounds.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 23. Preparing to weigh South Fishway Gate, 12,100 pounds.
2015 H d li St l St t S f Att h t 7
Photo 24. South Fishway Hatch Cover Removed.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 25. Lifting Gate 6 with Spreader Bar and 4‐Legged Sling.
2015 H d li St l St t S f Att h t 7
Photo 26. Setting Gate 6 down for inspection. Will require access to both faces for 2015.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 27. Orifice plate lifting lug configuration.
2015 H d li St l St t S f Att h t 7
Photo 28. Back side of larger orifice plate.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
Photo 29. Retrieving spreader bar and 4‐legged sling from storage on Gate 6 in DS slot.
2015 H d li St l St t S f Att h t 7
Photo 30. Retrieving header bar and sling from storage on Gate 6 in downstream slot.
y Corps of
Engineers
Alaska District
2015 Hydraulic Steel Structures Scope of Work for Moose Creek Dam Control Works
North Pole, AK
Attachment 7
| Photos |
| Photo 1. USACE 4‐legged sling ready to lift Gate 1. |
| Photo 2. Lifting one side of 2‐piece gate hatch cover, about 4,000 pounds. |
| Photo 3. Upstream face of Gate 2 showing lower wheel well area. |
| Photo 4. Downstream face of Operating Gate 1. |
| Photo 5. Gate 1 in approximate inspection position w/ 8 orifice plates installed. |
| Photo 6. Gate 1 orifice plate removal. |
| Photo 7. Positioning spring on upstream face, upper wheel shown – similar at lower wheel. |
| Photo 8. Field connection tabs and gouging on inside of gate adjacent to weld to be UT’d. |
| Photo 9. Cleaning gate interior with shovel and shop vacuum. |
| Photo 10. Typical fine sand and wood debris inside gate cavities before cleaning. |
| Photo 11. Gate cavity cleaned for inspection. |
| Photo 12. Using shovel to clean interior gate cavity for inspection. |
| Photo 13. 5/8 – 11 NC flat head orifice plate bolts coated with anti‐seize prior to replacement. |
| Photo 14. “Match marking” of orifice plates. |
| Photo 15. Nylon slings hitched around orifice plate lifting lugs ready for plate removal. |
| Photo 16. “Match marking” of orifice plates and nylon sling in place for orifice plate removal. |
| Photo 17. Gate #4 marked with weight of 92,500 pounds. |
| Photo 18. Fish Ladder Bulkhead, 8,000 pounds. |
| Photo 19. Fish Ladder Gate, 8,900 pounds. |
| Photo 20. Gate 5 (2 piece gate) laid on dunnage. |
| Photo 21. Gate 6 spreader bar and 4‐legged sling storage. |
| Photo 22. North Fishway Gate, 11,900 pounds. |
| Photo 23. Preparing to weigh South Fishway Gate, 12,100 pounds. |
| Photo 24. South Fishway Hatch Cover Removed. |
| Photo 25. Lifting Gate 6 with Spreader Bar and 4‐Legged Sling. |
| Photo 26. Setting Gate 6 down for inspection. Will require access to both faces for 2015. |
| Photo 27. Orifice plate lifting lug configuration. |
| Photo 28. Back side of larger orifice plate. |
| Photo 29. Retrieving spreader bar and 4‐legged sling from storage on Gate 6 in DS slot. |
| Photo 30. Retrieving header bar and sling from storage on Gate 6 in downstream slot. |
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