CHOKEPOINTS

Who knew a small lane switch on I-5 could create such chaos?

Jul 27, 2023, 5:01 AM

Image: Traffic on Interstate 5 passes through downtown on Nov. 28, 2013, in Seattle. Seattle, locat...

Traffic on Interstate 5 passes through downtown on Nov. 28, 2013, in Seattle. Seattle, located in King County, is the largest city in the Pacific Northwest. (Photo: George Rose, Getty Images)

(Photo: George Rose, Getty Images)

Wednesday was rough on northbound Interstate 5. A small lane shift led to seven-mile backups and hour delays into Seattle until after the express lanes opened for the afternoon commute.

I was more than surprised that a slight lane shift created what we saw on the freeway. It usually doesn’t happen like this, but this spot, right near the Seneca Street exit, has a lot of moving parts.

More Chokepoints: SR 520 Montlake lid project one step closer to finish line after this weekend

You have the HOV lane ending in the morning because the express lanes are going southbound. You have the exit-only ramp to Seneca.

The contractor then added orange barrels and blocked the right lane. Drivers were forced to move to the left just after Seneca.

The Washington Department of Transportation’s Amy Moreno said it’s hard to judge how drivers will react to sudden changes.

“We know it’s going to look a little different to people, and any time that you have something that’s a little bit of a change, especially on I-5, that can affect traffic,” Moreno said.

This lane shift is going to stick with us until the new northbound through-lane opens up.

“They did put those orange barrels up on the right, and those are going to stay there for the next few days as they continue the re-striping work,” Moreno said.

That new lane should open in a few days.

“You can’t just shut the whole freeway down and re-stripe everything at once,” Moreno said. “We have to leave ways for people to get through.”

There will be another closure of the collector-distributor lanes overnight today. Workers will take Friday night off, and then one more big closure overnight Saturday, when both the mainline and collector-distributor lanes will be closed. The express lanes will remain open in the northbound direction.

And I had the final configuration a little mixed up too. That new third lane will be next to the existing Seneca Street exit-only ramp. It’s not just going to be an extension of that lane, as I had been reporting.

So when this is done, there will be the HOV/express lane exit, the Seneca Street exit, and three through lanes on northbound I-5.

We just have to survive the lane configuration until then.

Check out more of Chris’ Chokepoints.

Chokepoints

crash downtown seattle...

Frank Sumrall

Violent downtown car crash kills 2: ‘One of the worst collisions I’ve seen’

The Seattle Police Department is investigating a fatal two-car crash that occurred in the middle of Downtown Seattle Friday morning.

3 days ago

Photo: The Wapato Way East Bridge and connecting SR 99 roundabout opened in June 2021. The protecte...

Nate Connors

This weekend’s project punch-list includes highways, bridges and a tunnel

Weekend construction will be seen across Western Washington as WSDOT scrambles to finish project before the rainy weather sets in.

3 days ago

A towering figure of Jack Skellington from the film "The Nightmare Before Christmas" appears in fro...

Chris Sullivan

Celebrate Halloween by taking over your street

If you're still looking for a way to make a Halloween impression, why not shut down your street and throw a block party?

4 days ago

I-5 commute crash...

Frank Sumrall

‘Slow down:’ Troopers respond to nearly 40 King County crashes Tuesday

A four-vehicle crash occurred on I-5 heading south Tuesday morning, causing the morning commute to slow to a standstill.

5 days ago

tolls I-405 SR 167...

Chris Sullivan

Massive toll system changes on the way

The maximum tolls on I-405 and SR 167 went up to $15 earlier this year, but it's likely that rate will be going up again next year.

6 days ago

boylston ave off-ramp...

Nate Connors

Peace and quiet ahead: Boylston Ave off-ramp to shut down for noise walls

This weekend's portion of the noise wall project is scheduled to close the Boylston Ave off-ramp at 7 a.m. Saturday through 8 p.m. Sunday.

9 days ago

Who knew a small lane switch on I-5 could create such chaos?