^
These are from last month--Dec. '09--the freshest I could find! There are more pics at the link along with high-res-super-giant versions. It sounds like they're roughly at the point of installing the giant steel which will support the concrete roadway:
http://www.hooverdambypass.org/whats_new.htm
Quote:
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...Spandrel columns on the arch were completed in December 2009. These columns will now support the superstructure of the bridge. Remaining work includes placement of the steel tub girders sequential construction of the cast in place concrete deck, pedestrian and barrier rails...
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Pics posted are from:
http://www.hooverdambypass.org/Const...Dec2009_Bridge
/C-FHWA-003-1752_lowrez.jpg)
/C-FHWA-003-1734_lowrez.jpg)
/C-FHWA-003-1738_lowrez.jpg)
Quote:
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On the Nevada approach deck, steel girders are staged with steel safety lines attached along the top of the upper flange. These girders, weighing upwards of 50 tons will be transported by the highline crane and placed to span between the spandrel pier caps, on top of which, the concrete roadway deck will be constructed.
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Oh yeah, web cam here too, btw:
http://www.hooverdambypass.org/