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billb

all-are-welcome-to-view-my-conceptual
work-for-the-I5-bridge

Nick

You forgot about the new bridge across the Willamette that will be built for the MAX line from PSU to Milwaukie. This bridge will look very much like the Santiago Calatrava bridge pictured in your post.

http://www.oregonlive.com/news/oregonian/index.ssf?/base/news/119155652055280.xml&coll=7

Nick

The link did not show up...

It is to the Oregonian article about the new Light Rail bridge from October 5th, 2007.

http://www.oregonlive.com/news/oregonian/
index.ssf?/base/news/119155652055280.xml&coll=7

tao

Design competitions can do much to inspire people in decision-making positions to embrace ideas that might be too difficult to move forward inside a particular organization, and so I'd encourage more where we have a clear sense that we need something other than what we've been doing in the past.

I wonder if all the regulatory aspects of 21st Century bridge-building [sic] are too constrictive, what with security (mostly bogus and overblown?) overlaid on top of necessary but probably archaic safety requirements.

One thing I'd suggest, but which seems unrealistic: solar power bridges. They can be both functionally and visually integrated, and while there are costs added, it would bring additional financing to the table. Given our embrace by the solar industry and the need to more visibly engage people on new solutions, it could be exciting to see. This past Spring, the Cascadia Region Green Building Council held a Living Building Challenge, and one of the showcased ideas was a solar hot water tube encasing a suspended bicycle crossing. Produced thermal energy for heating adjacent buildings and created shelter for what can be unpleasant stretches for cyclists.

Image a radically different looking bridge that converts solar energy into usable power and heat.

I'm sure there could be lots of alternative ideas.

john

Permeable pavement is FAR less durable. I think that is what stops them.

chris

http://www.psat.wa.gov/Publications/LID_studies/permeable_pavement.htm

85% durable as conventional.

Sounds great for a lot of sidewalks and residential streets.

charles

We have spent some time exploring permeable pavement for the Division street revitalization project called Green Street meets Main Street. A couple of the concerns from the PDOT around permeable have been untested longevity (need proof), higher cost, and potentially higher maintenance costs. What some of us locals have been advocating for are permeable parking lanes. Benefits include less traffic burden, lower cost than all permeable, water flows naturally to the edges with pavement pitch so can reap most benefit here.

Jesse Beason

As I understand it, the new Columbia span is severely limited in design scope from above (FAA requirements given the nearby small Vancouver airport) and from below (Army Corps, I believe, for navigable waters).

I know the the urban design advisory group for the crossing project has been struggling with is how NOT to have another i-205 bridge within these tight constraints.

Lance Lindahl

The design of the proposed Wilamette River MAX bridge is still undetermined at this time.

The photo-simulation that was in the Oregonian recently is just one proposal, and an old one at that. The location of the bridge is also up in the air, with three different options up for review.

There is still time for arts advocates to weigh in on how the MAX bridge should both look and function. More information can be found at www.metro-region.org/southcorridor.

Lance Lindahl
Member, Citizen's Advisory Committee
Portland to Milwaukie Light Rail Project

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