Seattle Department of Transportation

Seattle Streetcar: definitely isn't a car, and it only runs on tracks 🤨

Tap to Pay, technology which is 100% true to its name, is now live on all Streetcars.

No ORCA card, no problem 🎉

Details: info.myorca.com/contactless/

SHAPE TRANSPORTATION IN SEATTLE: we're recruiting for the Seattle Freight Advisory Board, Pedestrian Advisory Board, and School Traffic Safety Committee. Join us at online open houses on Monday, March 16 (noon-1 PM) or Thursday, March 19 (5-6 PM). Details: sdotblog.seattle.gov/2026/03/03/s....

HEADS UP, SEATTLE: Emergency repairs to the SR 99 First Avenue South Bridge will need to continue through 11:59 p.m. Friday, March 13, after crews found that damage to the steel grid deck is more extensive than inspectors initially thought.

Continue to expect delays in this area.

The Gliders are likely counted as bikes through SDOT's inductive counters, though the type of counter varies a bit between locations. Not all of the counters are able to distinguish between modes.

Bus bulbs (the last picture) also make the bus much faster as it doesn’t have to merge back into traffic after pulling over to the curb

Excellent point.

Thanks to STM funding, we've brought more bus service to more people while investing in safer, more efficient streets and sidewalks for riders: www.seattle.gov/transportati...

While 60% of the Seattle Transit Measure funds more daily transit service, it also invests in building better access to transit.

Here's an example: new bus stop improvements, built in-house by SDOT crews, serving Route 65 in Lake City and Routes 124 and 125 in Delridge.

The first day of steel deck repairs is complete on the SR 99 First Ave S bridge in Seattle.

The bridge remains closed to NB traffic. Expect delays on NB SR 509/SR 99 heading downtown.

Work resumes at daylight on Tuesday, March 10.

Detour map & details: bit.ly/SR99FirstAveBridge

HEADS UP: NB SR 99 First Ave S Bridge will close for repairs from 5a Mon (3/9) - 8p Wed (3/11)

A recent inspection found cracks in the steel deck grates. Crews will install steel plates to reinforce the bridge. Drivers should use I-5 or I-405 and plan for heavy regional traffic.

SDOT is hardening the greenway crossing at 83rd and Greenwood today, which will prevent drivers from using the street as a cut through and reduce left-turn conflicts during signal phases.

It’s happening: Yesler Way to get new bike lane, closing critical gap in Seattle’s bike network | LEVY DOLLARS AT WORK  - SDOT Blog Seattle's historic Pioneer Square neighborhood is getting new protected bike lanes, closing a key gap in the city's bike network.

Read the full story: sdotblog.seattle.gov/2026/02/26/p...

🔗 Visit the project page: www.seattle.gov/transportati...

The historic infrastructure added some unique challenges to this project. We worked closely with the Alliance for Pioneer Square to move this long-planned connection forward.

Right now, crews are upgrading the signal at 1st Ave and Yesler Way to include an all-way-walk phase, making it safer for people walking, biking, and rolling. You’ll start to notice the bike lane installation in the coming weeks.

Something new is coming to one of Seattle’s most historic neighborhoods.

We’re installing a protected bike lane from Occidental Ave S to the waterfront, closing a critical gap in the City Center Bike Network!

Thanks for letting us know, I've forwarded this to our team. What a bummer.

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SR 99 TUNNEL RAMP CLOSURES TONIGHT (3/4)

The following ramps will be closed from 9p Weds (3/4) until 5a Thurs (3/5):

- 6th Ave N on-ramp to SB SR 99
- NB SR 99 off-ramp to Republican/Dexter
- SB SR 99 off-ramp to 7th Ave/Harrison St

Seek alternate routes @seattledot.bsky.social

This project is funded by the voter-approved #LevytoMoveSeattle.

Learn more here: www.seattle.gov/transportati...

Below the surface are some shiny new changes, too. Crews have added new electrical conduit underneath as part of the new bus stop on N 35th St.

New protected bike lanes are also in the works!

By reconstructing sidewalks and curb ramps to be smooth, even, and ADA-accessible, we make it easier for people of all ages and abilities to enjoy Fremont and visit their favorite stores and restaurants.

What do you think of these sidewalk improvements in Fremont?

These before and after photos were taken on N 35th St east of Fremont Ave N as part of the Route 40 project.

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EASTBOUND I-90 CLOSURE FRIDAY🚧

Eastbound I-90 between Seattle and Mercer Island will CLOSE Friday night (3/6) at 10p for maintenance. The eastbound I-90 ramps from I-5 and Rainier Ave S close too.

All lanes reopen at 6a Saturday (3/7) @seattledot.bsky.social @cityofmercerisland.bsky.social

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SR 99 TUNNEL LANE AND RAMP CLOSURES (3/3) 🚧

- 1 right lane of the NB SR 99 Tunnel will close from 10p-4a (3/4).
- 2 left lanes of SB SR 99 will close from Comstock to Thomas (before the tunnel) from 9p-5a. The SB SR 99 off-ramp to Harrison St will also close.
Expect delays @seattledot.bsky.social

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Going from West Seattle to Columbia City tonight?

The eastbound Spokane Street Viaduct ramp to South Columbian Way will close at 10p TONIGHT (2/27) until 5a Saturday (2/28) for overhead sign replacement.

Expect delays @seattledot.bsky.social

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EB I-90 TUNNEL FRI NIGHT LANE CLOSURES 🚨

At 11p tonight (2/27), two left lanes of eastbound I-90 will CLOSE from just south of Rainier Ave S to the east portal of the Mount Baker Tunnel for maintenance. All lanes reopen at 7a Saturday (2/28).

Expect delays @seattledot.bsky.social

NORTHBOUND SR 99/AURORA BRIDGE CLOSURE ☕️

On Sunday, March 1, all lanes of NB SR 99 and one left lane of SB SR 99 will CLOSE between Harrison and N 50th from 6a-11a for the Hot Chocolate Run in downtown Seattle.

Expect delays @seattledot.bsky.social

This project is partially funded by the voter approved Seattle Transportation Levy, along with additional transportation investments tied to #Seattle’s preparation for the FIFA World Cup 2026. #seattletransportationlevy #FIFAWorldCup

It’s happening: Yesler Way to get new bike lane, closing critical gap in Seattle’s bike network | LEVY DOLLARS AT WORK  - SDOT Blog Seattle's historic Pioneer Square neighborhood is getting new protected bike lanes, closing a key gap in the city's bike network.

SDOT worked closely with Alliance for Pioneer Square to move this long-planned connection forward.

Read more about it here: sdotblog.seattle.gov/2026/02/26/p...

Building this missing piece to the city’s bike network wasn’t simple. The historic nature of Pioneer Square and the age of the infrastructure made adding modern bike and signal improvements complicated, requiring careful design and coordination.

This project fills a gap in Seattle’s City Center Bike Network & creates a much-anticipated, safer connection between Pioneer Square, downtown, and the waterfront.

Construction officially began this week with underground work, and more visible changes on the street will follow in the coming weeks.