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Get ready for a major Fairview Ave N detour later this year + A look at some of your options – UPDATED

UPDATE 8/20: SDOT says the closure could start at early as September 16.

Official detour map showing the walking and biking detour along Aloha Street.If you bike along the east side of Lake Union into the city center, then you should get ready for a significant change to your bike route later this year.

Work has already started to prepare for the Fairview Ave N bridge replacement, but the extended closure of the bridge will cut off the only flat bike route between Eastlake and South Lake Union/downtown for more than a year. So it’s not a bad idea to start trying out some alternate options to see what works best for you.

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You may not fully realize you are on a bridge when you cross over the Fairview Ave N bridge. But if you walk along the floating path to the north of the bridge, you can see that the roadway is supported by aging timber that doesn’t inspire a ton of confidence. The structure does not meet seismic standards, and it is the final timber-supported major bridge left in the city. Replacing it was a key project in the Move Seattle Levy, which voters approved in 2015.

The full bridge is scheduled to close for construction in the Fall and won’t reopen until 2021. Exact dates are not yet listed on the project webpage. The new bridge will have a two-way bike lane and a sidewalk on the north side of the bridge:

Diagram of the existing bridge layout, with a 9-foot shared walking and biking path on the north side.Diagram of the new bridge with a 12-foot two-way bike lane and an 8-foot sidewalk on the north side.

Work is underway right now to build elements of the Aloha Street walking/biking/transit detour. This will probably be the best option for most people, though it does include some significant climbing. A new traffic signal at Aloha and Eastlake should help people heading north make that left turn onto Eastlake.

One big question is how well the paint-only bike lanes on Eastlake Ave will hold up under the expected increase in traffic.


One poorly-kept secret for Eastlake-to-downtown riders is that it is significantly faster to bike all the way up the hill on Eastlake Ave to the REI Flagship store, then ride down Stewart St. This includes much more hill climbing and lots of mixed-traffic biking, but many people are willing to make those trade-offs for the big time savings versus slogging through all the stop lights and traffic in South Lake Union. Avoiding Mercer St entirely is itself a big benefit for this route.

However, this route may be significantly worse once Fairview car traffic is detoured up Eastlake (see map at the top of this post).

If you make it all the way to the bridge closure, then the official detour is probably going to be the best option for most people. However, if you have a longer route, you may be better off detouring earlier in your route to avoid the whole bridge area entirely. Below are two options I came up with. If you have another idea, please share it in the comments below.

Map of two route options, described in more detail later in the post.
See the interactive version of this map. North starting point is 40th/40th/40th/40th/7th/Burke-Gilman Trail. End point is Westlake Park. Time estimates are from Google Maps’ bike directions, which tries to take hill climbing into account.

Detour to Melrose

One of my favorite routes from the U Bridge to Capitol Hill is to cross under I-5 via the pathway at Franklin Ave E and Harvard Ave E, then bike through the neighborhood to the I-5 Colonnade Park. From there you can connect to Lakeview Blvd (which could really use some bike lanes) which feeds into the Melrose Connector Trail and Melrose Ave. It’s not too hilly compared to other Capitol Hill routes, and there’s limited mixed traffic biking compared to Eastlake Ave. It’s not a perfect route, but you may be willing to make the hill climbing and time trade-off for the more pleasant experience. Riders headed to South Lake Union can take the Lakeview Bridge over I-5 at Belmont Ave, which will drop you onto Eastlake Ave at Roy St.

Detour to Fremont?

This option may sound absurd at first, but many people who use the University Bridge could detour to the Fremont Bridge for a modest time increase. But trading some time for lower stress could be worth it for people who don’t want to deal with the Fairview Bridge detour area. Maybe traffic around the detour won’t be so bad and this will be a non-issue. We’ll have to wait and see. But if it is a problem, Fremont might be worth it for many U Bridge users.

Many people already do this today in an attempt to avoid Eastlake Ave even though it takes longer. However, imagine how amazing it would be to have safe bike lanes on Eastlake from the U Bridge to the new Fairview Bridge bike lane to new bike lanes on Fairview to Lake Union Park and 9th Ave. This is all possible if the city keeps the Roosevelt-to-downtown RapidRide project on schedule and doesn’t water down the safety elements (this may require organizing to support the SDOT’s current plans). Tying all these connections together would revolutionize biking east of Lake Union and open so many more homes and destinations to biking for so many more people.  The next year or two are going to be dark times for biking in the area, but there’s a very bright future not so far away.

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7 responses to “Get ready for a major Fairview Ave N detour later this year + A look at some of your options – UPDATED”

  1. Damon

    This bridge replacement presents me with exactly the opposite problem from what’s described here.

    Currently, I commute through Fremont and down Westlake and around the south end of the lake, then on Fairview up the lake to just beyond the bridge.

    Rather than deal with what I expect to be a total nightmare at Aloha and Eastlake, I’m planning to switch over to U Bridge / Eastlake. I’m really not looking forward to a year and a half of Eastlake stress.

    I’d love to be wrong about Aloha, but I just don’t see how all those bikes and cars and buses can squeeze up a street that was never meant to be an arterial.

  2. Lili

    One thing I don’t see mentioned is all the construction projects going on on Eastlake already (near the Zymo building, which is one of them). It seems very unlikely that any of those projects will be finished by September. Not only are there no bike lanes available in that area, but traffic is being directed (alternating) into one lane.

  3. I would propose a variation on the Fremont Bridge (blue) detour you listed: instead of turning onto N 34th St at Stone Way, stay on the Burke-Gilman Trail until right up at the Fremont Bridge, cut through the Google campus onto N 34th St, then go across Fremont Ave and cross Fremont Bridge on the east side. (Note: this is part of the route followed by the Ravenna-Fremont line of the Seattle Bike Train every Friday morning)

    Here’s the route: https://ridewithgps.com/routes/30800529

    For an All Ages & Abilities route, I think this is probably one of the best in the city. The route goes as follows: Burke-Gilman Trail, 34th St PBL, Fremont Bridge, Westlake Cycletrack, 9th Ave PBL (few blocks of paint-only bike lanes, too), a few blocks of sharrows on Bell St with diverters (signs only), 2nd Ave PBL, and Pike/Pine St PBL, All this along with minimal hill-climbing (less than 4% grade even on Bell St) make it my recommended choice.

    1. Tom Fucoloro

      That’s a good option, too. In my head, this route is for someone who is already used to dealing with the mixed traffic biking along the Eastlake/Fairview route. Compared to that, 34th is nothing :-)

      1. Absolutely agree there! In a month or so leading up to the closure, I plan to make videos to show folks the various detours.

  4. Ruth Berge

    Is this the bridge with the cement block separating it from the roadway? This was the first separated bike lane that I know of in Seattle and also one of the most effective. SDot will ruin it.

  5. […] As we reported previously, the biking, walking and transit detour will be routed via Eastlake Ave and Aloha Street. Crews are even installing temporary trolley wires for electric buses. People driving southbound will be directed to continue south on Eastlake Ave to Stewart Street or any of the many streets into South Lake Union along the way. Northbound, people headed to Eastlake will be directed out of downtown via Howell Street. […]

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