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Williamsville Bridge - February 8, 2010
WGN 45-13-05
Hi,
They have the decking done and have made a lot of progress these past few weeks. I am impressed with the work site in that it is picked up and looks quite safe.
I note more deck boards from the old bridge that are pulled up and stacked with nails and lag bolts showing. I would guess that the first layer of decking on the old bridge is 50% gone. Tom Lacky
says they are removing loose running boards and screws in the old bridge and not replacing them. They are sacrificial members that protect the laminated deck, which we won't need much longer.
Traffic remains quite heavy and I see several dozen cars at each of my visits.
Ray Hitchcock
 |
Decking close-up. |
 |
Decking at the east portal. |
 |
View through the bridge at deck level. |
 |
Tie beams. Note the mortises that will receive the tenons of the upper lateral bracing system. |
 |
Note the tie-beam seat atop the upper chord. Also, the empty holes. These will receive trunnels from the outside of the truss. |
 |
A view of the upstream truss end. |
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Joe Nelson, P.O Box 267, Jericho, VT 05465-0267
This file posted 02/09/2010
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