canyon040519b

Canyon Bridge Rehabilitation Progress - continued Canyon Bridge - 5/18/04 East chord end with bolster beam. Canyon Bridge - 5/18/04 West chord end. Note rot and powder post beetle damage. Canyon Bridge - 5/19/04 The downstream truss is lifted away. Canyon Bridge - 5/19/04 The downstream truss is positioned at the landing pad. Note the wet rot at the west end bolster beam. Canyon Bridge - 5/19/04 The last knee brace is brought down. Canyon Bridge - 5/19/04 The downstream truss is laid up atop the upstream truss. With the release of dead load, a brace fell out of the truss. Note the splice. Canyon Bridge - 5/19/04 The inside center members of both lower chords will be replaced. The downstream truss member is cross- grained and shows a crack. The corresponding member in the upstream truss shows a long longitudinal crack. Begin Canyon Bridge Rehab

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