MYNORTHWEST NEWS

Mysterious ‘unknown sludge’ appears on I-90 in Seattle

Sep 25, 2019, 4:12 PM

Unknown sludge...

An unknown sludge on westbound I-90. (WSDOT)

(WSDOT)

It didn’t block traffic for long, but it wasn’t any less peculiar when an “unknown sludge” appeared on westbound I-90 just east of I-5 during the early part of Wednesday’s afternoon commute.

WSDOT announces date for SR 99 tunnel tolling

The Washington State Department of Transportation reported the mysterious sludge shortly before 3:15 p.m.

A lane of traffic was blocked as cleanup efforts began. At one point, four people were conscripted to clear what WSDOT dubbed on Twitter the #unknownsludge. Thankfully, the mysterious goo was mopped up in a tidy 30 minutes.

As of publishing, there’s no word as to where the unknown sludge came from. Also no word yet on whether the Ninja Turtles were present.

Please follow our Community Guidelines

MyNorthwest News

fire engine...

James Lynch

Washington business owner buys fire engine to defend community from wildfire threat

With wildfires raging across Washington, one business owner has taken wildfire defense into his own hands — by buying a used fire engine.

2 minutes ago

mail-in voting (1)...

KIRO Newsradio staff

‘Don’t freak out’: WA Secretary of State expects new injunction ‘very soon’ after Supreme Court mail-in voting ruling

Washington Secretary of State Steve Hobbs expects a new injunction to be filed "very soon" after the U.S. Supreme Court ruling on mail-in voting.

36 minutes ago

seattle police chief...

KIRO 7 News Staff

Seattle mayor launches national search for new police chief

Seattle mayor Katie Wilson has launched a national search for the next city police chief.

2 hours ago

Seneca overpass body...

Frank Lenzi

Person found dead along I-5 near Seneca in Seattle

The Washington State Patrol (WSP) is investigating after a person was found dead in a grassy area along I-5.

2 hours ago

everett fire median i-5...

Jason Sutich

All lanes back open after brush fire in I-5 median near Everett

A brush fire in the median of I-5 near Everett is blocking the HOV lane in both directions and the southbound left general-purpose lane.

3 hours ago

Kristina Liutova...

Frank Lenzi

Redmond’s Kristina Liutova, 16, wins first-round US Open qualifying match

Redmond teenager and youngest active WTA champion Kristina Liutova is one step closer to qualifying for the main draw at the US Open.

3 hours ago

Mysterious ‘unknown sludge’ appears on I-90 in Seattle