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Weigh in on the design of the future (carfree!) French Prairie Bridge

Posted by on October 26th, 2018 at 10:14 am

Pick a bridge, any bridge.

Whenever a carfree bridge over the Willamette River is being built in our region, it’s worth knowing about — especially when that bridge is the lynchpin that will someday connect 1,000 miles of paths and trails in the Portland region with the 134-mile Willamette Valley Scenic Bikeway.

I’m talking about the French Prairie Bridge project. And it’s time to do some bridge shopping.

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It’s been nearly six years since we reported on one of the grants that helped fund this project. As we shared back then, the City of Wilsonville sees the bridge not just as a way to connect people to the Willamette Valley, but as way to boost tourism and economic development. Wilsonville is currently smack-dab in the middle of a 30-mile gap of surface street crossings of the Willamette River.

(Graphic: City of Wilsonville)

People in the Portland area who want to reach the Willamette Valley (and the great bikecamping destination of Champoeg State Park), have to cross the river at Oregon City or Newberg. Having a safe crossing at Wilsonville will be a major improvement. The bridge will also hasten development of the Ice Age Tonquin Trail which will eventually connect Wilsonville to Tualatin via the Fanno Creek Trail.

The City of Wilsonville is nearing the end of a two-year planning phase. With an alignment chosen and money in the bank for development, all that’s left to do is decide on the bridge type — and then build it!

The online open house is going on now through October 30th and your feedback is needed. There are five designs under consideration and there’s a great open house page that has all the details on each one to help you share informed feedback. All the designs will come with a 17-foot wide shared path. Final design will be selected in Spring 2019.

— Jonathan Maus: (503) 706-8804, @jonathan_maus on Twitter and jonathan@bikeportland.org

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NOTE: We love your comments and work hard to ensure they are productive, considerate, and welcoming of all perspectives. Disagreements are encouraged, but only if done with tact and respect. If you see a mean or inappropriate comment, please contact us and we'll take a look at it right away. Also, if you comment frequently, please consider holding your thoughts so that others can step forward. Thank you — Jonathan

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Mike Quigley
Guest
Mike Quigley

I’d go with what’s least expensive. We don’t need a showpiece in that location.

David Hampsten
Guest

We can always upgrade later if the demand justifies it.

BradWagon
Subscriber

A. Why build a bridge twice?
B. This would never happen.

BradWagon
Subscriber

Cost isn’t just based on the appearance. More expensive options have benefits regarding the impact to the river during and after construction.

Chris I
Guest
Chris I

This is true, but it looks like we’re talking two additional in-water supports here. I wouldn’t say that would be a huge impact, especially for such a narrow bridge. Given the similar bridge just downtstream, it seems like the basic steel option would work just fine here. I’d rather have another pedestrian bridge at another spot (LO to Milwaukie, for example) than a fancy bridge here.

Peter Goodkin
Guest
Peter Goodkin

I’d go with the design best suited to withstand a subduction zone earthquake.

Jason McHuff
Guest

This bridge is also intended for emergency vehicles, and the Web site lists “providing a seismically resilient route to support post-earthquake responses and recovery efforts” as a key project benefit.

Pitchfork
Guest
Pitchfork

Actually, I’ll apply the “least expensive” strategy to anything that doesn’t put piling in the river. No sense building obstacles for boaters or collecting wood on pilings during winter floods.

Evan
Guest
Evan

I rode over the I-5 bridge once many years ago on a ride down to Salem. It wasn’t pleasant, but it was doable. Riding a bike on the freeway ramps was probably the most nervous part. Certainly not recommended for anyone except skilled riders.

Josh G
Guest
Josh G

All for this, but the emphasis on a 30 mile gap seems a little far fetched considering what a good current option the Canby Ferry is, not to mention I-5 if need be.

Joe
Guest
Joe

I was in Wilsonville for 10 years and part of this future project, locals on other side of the river are fighting it 🙁 currently only way to get across is via I-5 and the ferry.

Glenn
Guest
Glenn

Oh yeah, has it been dubbed the “Crime Bridge” yet?

(Actual onetime Vancouver campaign against MAX: “Vote NO on the CRIME TRAIN!!!!”)

Jim Lee
Guest
Jim Lee

If you truly are gonzo, JM, you ought to write like Dr. Hunter S. Thompson.

Bikeninja
Guest
Bikeninja

My elderly mother lives across the river in charbaneau, and it drives me crazy that I have to dust off my 25 year old car and get out on the highway with the auto zombies to visit her. I rode the shoulder of I5 once and never again. During the week I could get to Willsonville from Beaverton on the Wes train faster than in a car, but the last mile by bike is a bummer. Any bridge would be better than what we have now

Jason McHuff
Guest

SMART does provide some weekday bus service to Charbaneau if you wanted.

Jason McHuff
Guest

A (I think) major point the post left out is that this is not just a bike bridge, but is also intended to be used by emergency vehicles, such as if an incident or earthquake were to close the I-5 bridge. This can make it more justifiable, possibly draw more/other funding and be a response to anybody who complains about lots of money being spent on bicycling.

GlowBoy
Guest
GlowBoy

Pretty is nice if it can be done within a few percent of the cost of the cheapest option, but otherwise just get it done. It’s a needed project, not only for bike tourism but for emergency response, especially after the inevitable mega-quake.

For the record, I never attempted biking the Boone Bridge. I did take my child bike-camping at Champoeg once (and the bike camping area is indeed excellent), using the Oregon City crossing on the way there and the Newberg crossing on the return leg. At Newberg you are riding along the shoulder of a moderately busy highway, but it’s not terribly narrow. Not particularly pleasant but not horrible (unlike what I’ve heard about Boone).

I suppose the Canby ferry would be nice for some, but I’ve heard there’s an enormous hill on the north side. Not something I would have wanted to use on the way back to Portland, pulling my child and camping gear in our not-very-granny-geared cargo bike.

rick
Guest
rick

The I-5 shoulder is kept more clean than Beaverton-Hillsdale Highway’s bike lanes and shoulders.

rick
Guest
rick

Fourth-to-last one is the best. It allows people to have the best views. No other designs compare.

Pitchfork
Guest
Pitchfork

Actually, I’ll apply the “least expensive” strategy to anything that doesn’t put piling in the river. No sense building obstacles for boaters or collecting wood on pilings during winter floods.