Final Environmental Impact Report - Whittier Bridge/I-95 ...

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crossing. Basically we've been looking at
conventional bridges, steel girder boxes, both steel
and concrete, a network tied arch, which is the one
which wound up becoming preferred, a signal tower
extradosed bridge, and a signal tower cable stay.
This view is from the Chain Bridge looking out at the
existing. And we have a number of views. We're just
going to run through this one vantage point for this
series of slides. This was basically a conventional
built bridge pretty much applied for any of the looks
that you'd get from visual impact from girder or
boxes. This is the extradosed bridge. Excuse me.
This is the cable stay bridge. This is the extradosed
bridge. Pretty much the same pier configurations with
some minor variations that were noticed with these
projects.
One of the things that you will have noticed is
that the existing bridge has four piers in the water
and the new bridge only has three. We basically have
combined the middle two piers into one. Those of you
that are familiar with the river, there's a high rock
in between the two channels that are out there and
we've located that pier on the high rock as well as
we've pulled the abutments back about 50 foot to the
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