No people or cars reportedly were involved in the mudslide at Southwest Holden Street and Highland Park Way Southwest.

Share story

UPDATE AT 7 P.M.: Highland Park Way Southwest will remain closed through Thursday between Southwest Holden Street and West Marginal Way Southwest, according to a tweet from Seattle Department of Transportation late Wednesday.

EARLIER POST:

The Seattle Fire Department responded to a mudslide Wednesday morning at Southwest Holden Street and Highland Park Way Southwest.

Highland Park Way is closed at the slide, and will remain closed at least through Wednesday because continuing rainfall could lead to more slides, said Norm Mah, public-relations supervisor for the Seattle Department of Transportation. A geotechnical analysis will be needed of the area to  determine when it will be safe enough to clear the material and reopen the road, Mah said.

But continuing rainfall is thwarting efforts to get crews in to do that work. Rain is expected through the day and night and possibly into tomorrow.

“We need to assess it, make sure whatever  we need to do, we can do it safely,” Mah said. “There is a  significant amount of the hillside that has come down.” A secondary slide has added more material that pushed the initial slide to the road, east of the original slide, Mah added.

The area has been designated by the city as slide-prone.

The Fire Department said in a tweet that no people or cars were involved in the slide. The Seattle Police Department called the slide “significant.”

Images captured from King 5’s helicopter show debris blocking several lanes and power lines leaning over the roadway.

The National Weather Service issued a special weather statement, warning of heavy rainfall through Thursday that will lead to an increased threat of landslides in Western Washington.

Rainfall of 4-5 inches last week has increased soil moisture across the region, the weather service said. Another 1-2 inches of rain is expected through Thursday in the lowlands.