The bridge's 'smart technology' The following is a snippet from
the Bridge article in the bookmarks – just wanted to make sure
you saw it. FRED DE SAM LAZARO: At the core of each column was
placed a steel skeleton, the concrete around it serving as a
skin. TOM DEHAVEN: We have thousands and thousands of miles,
like, 7,500 miles of high-strength cables in it, as well. That
steel actually holds up the bridge, and the concrete protects
it. So it's like the skin on your body is the concrete, but the
thing that really holds it up is the bones inside, the steel.
FRED DE SAM LAZARO: And just under the skin is embedded a kind
of fiber-optic nervous system. DAN SJOGREN, Construction Worker:
I'm installing a telerock maturity meter. It monitors the
temperature and strength gain of the concrete based on a time-
temperature scale. I put this in the pourage. It's one of the
ways we manage the concrete as it cures. FRED DE SAM LAZARO: In
all, about 320 sensors will monitor every aspect of the bridge's
operation, how the loa