Reply #10: This article says the current design may be cheaper than a viaduct

[CAcyclist]

Caltrans' skyway may not be best Bay Bridge fix

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Date: Mon, 20 Dec 2004 11:41:48 -0800
Subject: Caltrans' skyway may not be best Bay Bridge fix
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Published Monday, December 20, 2004, in the Oakland Tribune

Skyway may not be best bridge fix
Studies find tower plan might still be easiest solution; audit due
Wednesday

By Sean Holstege

Caltrans says it wants to finish the new Bay Bridge with a plain
concrete skyway, but neither its own technical report nor any panel of
consultants backs up that finding.

An independent industry panel concluded with scant support that a
cable-stayed tower should be built. A federal peer review team found
that the currently planned self-anchored suspension, or SAS span,
presented the least risk, as did Bechtel Corp. earlier this year.

And a panel of seismic experts warned that any design change could
lead to catastrophe or expensive, cumbersome re-engineering.