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Canyon Bridge Rehab - Work Progressing on Upstream Truss

Jeffersonville, July 29, 2004 - With the repairs completed on the south, or downstream truss, and the truss returned to the abutments, work began on the upstream truss.
      The plans call for the replacement of both end posts; the diagonals in the end panels at each end; the inside arch member at the east end; the inside top and bottom lower chord-end sections at both ends of the truss; and the inside bottom middle lower chord-section.
       Unplanned was the replacement of the kingpost in the third panel from the east end, found to be rotted.
Canyon Bridge. Photo by Joe Nelson, July 19, 2004 Canyon Bridge. Photo by Joe Nelson, July 29, 2004
David Morrell and Roland Blais fit the new upper chord section into the truss.
Photo by Joe Nelson, July 19, 2004
Roland Blais fashions the new kingpost using circular saw, chainsaw and flat chisel
Photo by Joe Nelson, July 29, 2004
Canyon Bridge. Photo by Joe Nelson, July 29, 2004 Canyon Bridge. Photo by Joe Nelson, July 29, 2004
The original kingpost at right was found to be laced with powder-post beetle holes and dry rot.
Photo by Joe Nelson, July 29, 2004
Roland Blaise displays a piece of the east end chord member destroyed by carpenter ants.
Photo by Joe Nelson, July 29, 2004

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Joe Nelson, P.O Box 267, Jericho, VT 05465-0267
This file posted July 31, 2004