Alright, lets pretend for a moment that you have the sole say on what happens in the city. You want something built, it's done.
Let's also say that you have $20 billion that the city found underneath a matress. What projects that you think you could get done within $20 billion would you do within the city?
I'll give you mine (with images, but you certain don't need images for yours).
Portland Stadium: Here is where I would put a brand new NFL/MLB capable stadium (there's actually room at the site to build both). The site will have future access to MAX, as well as major freeways, and provides a great location within the inner city.
Waterfront Park Extension: This is an obvious extension of the the parks that are to be built in both SoWa and Riverplace, and would provide much needed public areas next to the stadium(s).
Promenade Waterfront Shops: Instead of flowing directly into the stadium sites, the park site and stadium sites would be buffered by a permanent storefront which would include both open air and closed locations.
I-5 Tunnel: This is an idea that has been tossed around lightly before. Bury I-5 between I-84 and I-405, including the destruction of the Marquam Bridge. Part of this idea is that the ventilation system for the tunnel would be built to further scrub pollution from emmissions before it exchanged the air.
I-405 Parkway: Similar to the burying of I-5, this would be a much less technical project of simply covering over I-405 (mostly) with park, creating pedestrian bridges that cross over the streets which cross I-405, so that a person could continuously walk the park without navigating traffic, as well as bike paths and rights of way both on the parkway and over the pedestrian bridges.
Columbia River Crossing: This is simply the project as has been discussed. A new bridge for I-5 which would be a landmark for the area. (Which yes, means I'd put Pearson Field out of business.)
MAX Extension: Part of the deal for Vancouver getting their bridge is that they also get our MAX, with the commitment to re-evaluate and expand it within the next 10 years.
Powell Blvd MAX Line: I'd bring the commuter train system to outer Southeast Portland by running the MAX down Powell Blvd.
After all that is done, I think I'd still have perhaps $2 billion left, which I'd invest in needed maintainence of city streets and infrastructure.
This thread is not about whose ideas are right or best. I thought of what I'd do with $20 billion one day, and realized it would be really interesting to hear how different everyone's ideas would be. I live on the east side. I imagine the ideas from those on the west side would center more around there.
Lets hear what you would do.