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09 August 2001 The south two inch steel cable is being lifted on the east tower. |
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The east side tower and foundation area. |
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The south two inch steel cable is being lifted on the west tower. |
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The two towers with the two inch steel cables. |
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Another view of the two towers and the two inch steel cables. |
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10 August 2001 The yellow frame is sitting on the cribbing inside the east tower. The bridge sections will roll on the rollers (blue objects) as they are pulled across the river. The pulley blocks on the left are attached to the trolley on the two inch cables on top of the towers. The pulley blocks on the right are used to adjust the tension of the two inch steel cables. |
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This trolley rides on the two inch steel cables going across the river. This will support the end of the bridge as it moves across the river. The pulley blocks hanging from the trolley will attach to a frame with winches on the first bridge section. The winches will be used to adjust the height of the bridge as it moves across the river so the tension can be controlled on the two inch cables and the towers. |
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11 August 2001 All the rigging is ready to go. The yellow frame sitting on the east side concrete counter weight will be attached to the top of the first bridge section. The frame will be attached to the two pulley blocks (dark objects hanging inside the tower) hanging from the trolley. The cables in the pulley will go to the two red electric winches on the frame. |
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This picture was taken with a fish-eye lens (note the curvature of the highway bridge shadow.) The straight horizontal line in the middle of the picture is a fibre optic cable. The two 2 inch steel cables on the top of the towers droop over twenty feet. In a weeks time the two steel cables will be gone and a snowmobile bridge will be spanning the river. |
