Work to remove bumps along I-5 through downtown Seattle set to bring months of weekend closures

Apr 21, 2022, 6:07 AM | Updated: 6:26 am

WSDOT working on I-5 expansion joints. (WSDOT) A broken expansion joint on I-5 through Seattle in early April. (WSDOT)

The “bump brigade” is on its way. Workers are about to return to southbound I-5 in Seattle to remove all those terrible, alignment-killing bumps left over from last year’s paving. But it’s going to come with a heavy price.

Why there are bumps along I-5 through downtown Seattle

Sixteen weekends of work: That’s what it’s going to take to replace the 35 expansion joints on that stretch of southbound I-5 between downtown and the West Seattle Bridge. That will mean 16 weekends of full I-5 closures or partial closures basically every weekend between May and September — weather dependent — said Amy Moreno with the Washington State Department of Transportation.

“It’s going to be every weekend except for Memorial Day, University of Washington graduation, 4th of July and Labor Day,” she said.

This is going to leave a dent in your travel plans all summer, including going to games in the stadium district and attending Seafair.

“We usually try to work around big events, but there’s just no way around this,” she said. “It’s unfortunate because we don’t like to put people in these traffic jams, but to do this work and keep our contractor crews safe, this is the type of lane reductions we have to do.”

This all starts the weekend of May 6-8. The lanes will start being closed Friday night and won’t reopen until early Monday morning. Moreno said all southbound I-5 drivers will be forced into the collector-distributor lanes.

“It is going to be slow going,” she said. “People do need to prepare for that, and unfortunately, that’s Mother’s Day weekend, but that’s no excuse — get those gifts to your mom.”

This means only one lane will go all the way through the closure and pop back out on southbound I-5 after the construction zone. When WSDOT had similar closures last year, the backups extended from the University District. You are encouraged to delay your trip, use transit or choose an alternate route.

Why are portions of I-90 near Snoqualmie Pass so ‘groovy’?

It takes about 55 hours to chip out and replace one of these expansion joints, then wait for the concrete to cure around them.

WSDOT is replacing 35 of them, and it might be hard to believe, but most of them are original joints from when I-5 was first built.

“Thirty-two of the 35 are original,” Moreno. “They’ve been repaired many times by our maintenance crews, who have worked diligently over the years to keep these road-worthy.”

That means those joints have been there since the 1960s.

You might wonder why the state did the paving first, creating all those bumps in the process. WSDOT said it’s easier to pour the concrete first and match the joints to that height than it is to match the concrete to the new joints.

The state is starting this replacement work with the expansion joint that popped April 1, which caused a huge delay for drivers.

So, this is the end of the bumpy ride, but it’s going to take until September before those bumps are gone.


Fish Passage Bellevue...

Chris Sullivan

Ambitious fish passage work begins under I-90 in Bellevue

Four new bridges are being built along the I-90 corridor in Bellevue, but they aren't for cars or bikes. They are for a fish passage.

18 hours ago

park shoulder airport fine...

Chris Sullivan

Don’t park on the shoulder at the airport, you can get fined

Don't add to the problem by parking on the side of the airport expressway while waiting for your people to arrive.

6 days ago

travel survey SEATTLE TRAFFIC...

Chris Sullivan

New survey tracks how we travel for the greater good

There's a huge survey underway right now that will help determine the future of travel in our region and how it's developed.

8 days ago

Seattle I-5...

Chris Sullivan

Prepare for NB I-5 closures through Seattle this weekend

All northbound traffic through Seattle is going to be diverted off I-5 and onto SR 520 from 10 p.m. Friday until 10 a.m. Saturday.

13 days ago

Amazon Seattle Traffic...

Chris Sullivan

‘Amazon Effect’ crushing morning traffic into Seattle

We thought that our traffic had returned to pre-pandemic levels. The return of Amazon workers to Seattle shows we hadn't seen anything yet.

13 days ago

max toll rates...

Chris Sullivan

Is it time to raise the max toll rates to keep traffic down?

As I-405 is expanding, as well as State Route 167, the time has come to discuss max toll rates for our region.

15 days ago

Sponsored Articles

Internet Washington...

Major Internet Upgrade and Expansion Planned This Year in Washington State

Comcast is investing $280 million this year to offer multi-gigabit Internet speeds to more than four million locations.

Compassion International...

Brock Huard and Friends Rally Around The Fight for First Campaign

Professional athletes are teaming up to prevent infant mortality and empower women at risk in communities facing severe poverty.

Emergency Preparedness...

Prepare for the next disaster at the Emergency Preparedness Conference

Being prepared before the next emergency arrives is key to preserving businesses and organizations of many kinds.

SHIBA volunteer...

Volunteer to help people understand their Medicare options!

If you’re retired or getting ready to retire and looking for new ways to stay active, becoming a SHIBA volunteer could be for you!

safety from crime...

As crime increases, our safety measures must too

It's easy to be accused of fearmongering regarding crime, but Seattle residents might have good reason to be concerned for their safety.

Comcast Ready for Business Fund...

Ilona Lohrey | President and CEO, GSBA

GSBA is closing the disparity gap with Ready for Business Fund

GSBA, Comcast, and other partners are working to address disparities in access to financial resources with the Ready for Business fund.

Work to remove bumps along I-5 through downtown Seattle set to bring months of weekend closures