Explore gaps in the 40-Mile Loop with this cool new map

(*Note: This map is a work in progress and includes several sections that are incorrectly labeled.)

The 40-Mile Loop is a nonprofit that brings together government agencies to hasten the development of paths and trails that make a loop (hence the name) around the Portland metro area. It’s an idea that goes way back in regional lore and was originally envisioned by the famous Olmsted brothers in 1904.

As cool as the idea is, it’s not cool that this dreamy loop is still incomplete.

Thanks to devoted volunteer advocates we have a wonderful network of paths from Kelley Point Park in the northwest section of the loop to the Johnson Creek Trail near the rural outpost of Pleasant Home in the southeast section. But there are still about two dozen gaps left.

Before they can be filled, the first step is educating electeds, policymakers and advocates about where exactly these gaps are located. That’s where Glen Bolen and Jim Sjulin come in. Sjulin is a retired Portland Parks planner who’s work we’ve covered previously here on BikePortland. And Bolen is a planner with Oregon Department of Transportation Region 1.

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After Glen saw our video on the Alderwood Trail (“Secret Slough Path”), he reached out to share a cool new resource. He and Jim put their heads and resources together to create a new GIS map that details each section of the 40-Mile Loop — and more importantly — where the current gaps exist.

We cannot close the gaps until we know where they are.

As you can see from the embedded map above, the purple sections are where we still need to either purchase land and/or build a trail or path. Have a click around, explore the sites on your bike, and let’s work to turn this entire map green as soon as possible!

Find a gap and make it your personal mission to help close it.

NOTE/UPDATE: Please be advised that this is not an official map. It is an advocacy effort and a work in progress. As such, there are some alignments and sections that might not be 100% accurate. We regret any confusion.

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

Jonathan Maus (Publisher/Editor)

Founder of BikePortland (in 2005). Father of three. North Portlander. Basketball lover. Car owner and driver. If you have questions or feedback about this site or my work, feel free to contact me at @jonathan_maus on Twitter, via email at maus.jonathan@gmail.com, or phone/text at 503-706-8804. Also, if you read and appreciate this site, please become a supporter.

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Scott Kocher
2 years ago

FYI re the purple segment that is missing in NW Portland: We’re trying to get PBOT to fix the four-block “Thurman Gap” between Naito aka Front and 19th Ave. Going west from there, the greenway is going to be relocated from NW Raleigh St to NW Savier St, per the Northwest in Motion plan. That will be slightly less out-of-direction for the 40-Mile loop than the choice of Raleigh shown on the map. So, the map should probably show the loop staying on Thurman up to 19th or 20thth then bumping over a block and staying on Savier from there up to 28th (or 27th as shown). Then, there is the problem of getting from 27th and Thurman to the Leif Erikson gate. The NWIM plan includes a possible climbing bike lane on Thurman, which would be very helpful. Even striping a climbing bike lane on the Thurman bridge over Balch Creek (which is 27′ curb to curb and therefore has adequate width) would be a start. The worst speeding in NW (per NWIM data) is on that 1300′ foot stretch over the bridge from 28th to 31st, which has nothing to slow drivers down. A crosswalk with a refuge island at the low end of the bridge, and a wine barrel full of flowers in the oversized intersection of 29th and Thurman would solve the speeding. Hopefully the loop can get connected up with a route lots of folks would feel comfortable using!

Glen Bolen
Glen Bolen
2 years ago
Reply to  Scott Kocher

Scott, thanks for the details ideas. We definitely have some gaps that are pretty general.

Douglas Kelso
Douglas Kelso
2 years ago

Does the “North Portland Willamette Greenway Trail” actually exist as indicated on the map? As in, a continuous off-street trail that’s publicly accessible to bicyclists and pedestrians?

FDUP
FDUP
2 years ago
Reply to  Douglas Kelso

Not yet, but keep dreaming!

Douglas Kelso
Douglas Kelso
2 years ago
Reply to  Douglas Kelso

If “the purple sections are where we still need to either purchase land and/or build a trail or path” then the map is inaccurate. There are a number of proposed but unbuilt trail segments that show up as green on the map.

Andrew Valls
Andrew Valls
2 years ago
Reply to  Douglas Kelso

That’s my impression too. At the southeast part of the loop, I can find no evidence of the North Fork Johnson Creek Trail, connecting the Springwater Corridor to SE 282nd. I wish it were there!

DrawPlayDave
DrawPlayDave
2 years ago
Reply to  Douglas Kelso

Nothing even close to what the map shows. Even if you want to consider friendly roads as green, it’s still wildly inaccurate. Between Cathedral Park and the start of the Esplanade at the top of the Steel Bridge, only the short Waud Bluff trail and brief trail along MaCarthy Park on Swan Island actually exist as trails. The stretch on Greeley too, I suppose. Everything else is just road or straight up doesn’t exist. They have a green section below the University of Portland that is just train tracks, no path at all. I’m not sure where they got this information, it must have been on a report of potential trails, not what actually exists.

jeremiah jenkins
jeremiah jenkins
2 years ago
Reply to  Douglas Kelso

I am wondering about this too, as it appears that the trail goes right thru the Union Pacific Rail yard AFAIK you are trespassing if you take this path. You encounter a narrow fence tunnel at the end of the beach on the north end and then you see the signs. There is a large wide road that runs the entire length, which makes a great bike route, but the menacing fencing and signage seems to indicate you are not allowed to legally take this route. I would love to know otherwise.

Douglas Kelso
Douglas Kelso
2 years ago

One easy way for the map’s designers to check their work is to look at the PBOT Portland Bike Map. It covers all of the 40 mile loop that’s in Portland, and even a little of the part that’s in Gresham.

FDUP
FDUP
2 years ago

Ross Island’s closed east bank facility should now be in play.

Papa Biker
Papa Biker
2 years ago

Cool. Thanks for the post.

Lenny Anderson
Lenny Anderson
2 years ago

No offense, but “garbage in, garbage out!” The the exception of about one mile on Swan Island there is NO Willamette Greenway Trail available for use between the Eastbank Esplanade and Cathedral Park. This map shows the so-so bike facilities on N. Willamette and N. Greeley at the completed WGT!! Again in reality it just one big gap, except for part of Swan Island. Who did this map? They should consult with partners like npGreenway before publishing such a poor piece of work.

Douglas Kelso
Douglas Kelso
2 years ago
Reply to  Lenny Anderson

Similar problem on the west side. The map shows a segment of the South Waterfront Greenway from the Marquam Bridge to the Ross Island bridge that doesn’t exist.

I wonder how many other mistakes there are.

David Hampsten
David Hampsten
2 years ago

I found it helpful to read the map legend before making any comments. The green portions seem to show where the loop is supposed to go, but it doesn’t necessarily show where it has been completed. The purple is known gaps, but the rest is known unknowns.