canyon040519a

Canyon Bridge Rehabilitation Progress - continued Canyon Bridge - 5/15/04 The floor system is removed except for the sill beams at each end. All that remains of the roof system are the three tie-beam assemblies which will be removed when the cable bracing on the trusses is completed. Canyon Bridge - 5/15/04 View from the southeast corner (upstream side.) Canyon Bridge - 5/18/04 The upstream truss is rigged for lifting. In the foreground, a landing pad is being prepared. Canyon Bridge - 5/18/04 The upstream truss is released and supported only by the crane. Canyon Bridge - 5/18/04 Upon lifting the truss the sill timber at the west end of the bridge jammed in a notch cut into the arch timbers. A similar notch can bee seen at the east end. The sill timbers were later additions.. Canyon Bridge - 5/18/04 Up and away! Canyon Bridge - 5/18/04 The upstream truss is guided to the landing pad. Canyon Bridge - 5/18/04 Setting down. More Canyon Bridge Rehab

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