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Marquam Bridge I-5
Author: pdxrailtransit
Date: 10-09-2014 - 21:07
Sgt. Joe Friday Wrote:
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> There's no "good place" to be. The experts say
> modern high rises will probably come through OK,
> but who wants to be on the 70th floor of a
> building that's swaying 25 feet in either
> direction?
>
> Most of those same experts will also tell you the
> last place you want to be is under a freeway
> overpass. I believe them.
>
> All that said, if it bothered me that much, I
> would not live in southern California. We get a
> good, strong shake once every 20 years or so (Long
> Beach 1933, Tehachapi 1952, Sylmar 1971,
> Northridge 1994). Are we due? Yeah, but at my age
> (57) I might have to deal with only one or two
> more, so I'll take my chances.
One Interstate bridge you would not have wanted to be under was the I-5 Marquam Bridge across the Willamette in Portland before the seismic retrofit. If I remember correctly, something like at 6 pointer might have brought it down.
-------------------------------------------------------
> There's no "good place" to be. The experts say
> modern high rises will probably come through OK,
> but who wants to be on the 70th floor of a
> building that's swaying 25 feet in either
> direction?
>
> Most of those same experts will also tell you the
> last place you want to be is under a freeway
> overpass. I believe them.
>
> All that said, if it bothered me that much, I
> would not live in southern California. We get a
> good, strong shake once every 20 years or so (Long
> Beach 1933, Tehachapi 1952, Sylmar 1971,
> Northridge 1994). Are we due? Yeah, but at my age
> (57) I might have to deal with only one or two
> more, so I'll take my chances.
One Interstate bridge you would not have wanted to be under was the I-5 Marquam Bridge across the Willamette in Portland before the seismic retrofit. If I remember correctly, something like at 6 pointer might have brought it down.
