Was Oso mudslide nature’s mystery or man’s mistake?

OSO — Nearly a year after the worst disaster in modern Snohomish County history, a legal battle continues to take shape over whether somebody should be held responsible.

Was the March 22, 2014, mudslide near Oso a tragic display of natural forces reshaping the land, or a calamity caused by human hands?

Did local governments have a duty to discourage people from making their homes along the banks of the North Fork Stillaguamish River beneath a slide-prone hill, a place where 43 people later lost their lives?

So far, four lawsuits have been brought in King County Superior Court by those who lost family and homes. Three of the cases, representing the bulk of the plaintiffs, have been consolidated for a single trial, now scheduled for October.

Defendants include Snohomish County, the state of Washington and Grandy Lake Forest Associates, LLC. The Skagit County-based timber company not only owned part of the hill that fell but also engaged in limited logging there years before.

Seattle attorneys Corrie Yackulic and John Phillips represent the largest bloc of families. Yackulic can’t say much about what her team has learned. By March 23, she and the other plaintiffs’ attorneys are expected to tell the court which experts they’ll be relying on to help make their case.

“We are working really hard,” Yackulic said.

So far, there have been 20 depositions. Another 50 are expected, said Jason Cummings, the county’s chief civil deputy prosecutor.

Attorneys also have gathered up and pored over hundreds of thousands of pages of public records, scientific reports and other documents.

“This isn’t a sprint. This is a marathon,” Cummings said.

While the litigation promises to focus heavily on earth sciences, land-use policy and forest practices, attorneys are mindful that people are at the core of the case.

“Our hearts go out to the families of all those affected by the slide,” Cummings said.

The legal arguments

The theories advanced by the plaintiffs in court pleadings are nuanced and complex. Still, they could be summarized something like this: Logging on the bench above the hillside allegedly allowed unnatural amounts of water to seep into the slope, lubricating already slippery soils. Gravity and the gnawing river below worked to repeatedly bring down blocks of earth. Over decades, state and county officials responded with ineffective measures. They allowed more trees to be cut, more homes to be built nearby and put the greatest emphasis on fighting flooding and protecting fish. Those who lived nearby were reassured they were safe, the plaintiffs allege, particularly when work was done to control erosion after a large slide in 2006 that blocked the river.

The defendants’ legal responses could be boiled down this way: the slide was an act of of God or nature; officials acted in good faith and made decisions protected by law, particularly in response to flood risks; if mistakes were made, not all the defendants are equally to blame; and the plaintiffs’ own actions may have contributed to the harm.

This “case is being litigated as if it were — as one would expect it to be — a very large case,” attorney Elaine Spencer of Seattle said in court papers filed on behalf of her client, Grandy Lake.

The logging company is challenging allegations that it is partly responsible for the tragedy. It also maintains those claims should not be heard by a King County jury, but by people from Skagit or Snohomish counties, where it does business. That argument so far has found no traction with the King County judge. Grandy Lake has asked the state Court of Appeals to review the pre-trial ruling.

Pleadings demonstrate little agreement among the lawyers on the significance and meaning of scientific reports prepared prior to the slide. Plaintiffs maintain the reports were filled with red flags. Defendants counter that people have cherry picked information and presented it out of context to butress claims not supported by science.

Much remains unknown.

A January report released by a team of U.S. Geological Survey scientists determined that months of near-record rainfall played a key role in the hill’s collapse. The super soggy soil also added to the slide’s destructive power. The report made clear that more work needs to be done to understand how water entered and moved around the bluff.

Likewise, given the evidence of past slides near Oso, dating back eons, renewed activity should come as no surprise from a “geological perspective,” the report’s authors found. But they made clear that’s different from having the data necessary to forecast the slide’s timing and the mobility of the 10.8 million cubic yards of debris it unleashed.

To do so “would have required knowledge that was unavailable,” the report found.

Scott North: 425-339-3431; north@heraldnet.com. Twitter: @snorthnews

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

Boeing firefighters union members and supporters hold an informational picket at Airport Road and Kasch Park Road on Monday, April 29, 2024 in Everett, Washington. (Annie Barker / The Herald)
Biden weighs in on Boeing lockout of firefighters in Everett, elsewhere

On Thursday, the president expressed support for the firefighters, saying he was “concerned” Boeing had locked them out over the weekend.

Everett officer Curtis Bafus answers an elderly woman’s phone. (Screen shot from @dawid.outdoor's TikTok video)
Everett officer catches phone scammer in the act, goes viral on TikTok

Everett Police Chief John DeRousse said it was unclear when the video with 1.5 million views was taken, saying it could be “years old.”

Construction occurs at 16104 Cascadian Way in Bothell, Washington on Tuesday, May 7, 2024. (Annie Barker / The Herald)
What Snohomish County ZIP codes have seen biggest jumps in home value?

Mill Creek, for one. As interest rates remain high and supplies are low, buyers could have trouble in today’s housing market.

A person takes photos of the aurora borealis from their deck near Howarth Park on Friday, May 10, 2024 in Everett, Washington. (Olivia Vanni / The Herald)
Snohomish County residents marvel at dazzling views of northern lights

Chances are good that the aurora borealis could return for a repeat performance Saturday night.

Arlington
Motorcyclist dies, another injured in two-vehicle crash in Arlington

Detectives closed a section of 252nd St NE during the investigation Friday.

Convicted sex offender Michell Gaff is escorted into court. This photo originally appeared in The Everett Daily Herald on Aug. 15, 2000. (Justin Best / The Herald file)
The many faces of Mitchell Gaff, suspect in 1984 Everett cold case

After an unfathomable spree of sexual violence, court papers reveal Gaff’s efforts to leave those horrors behind him, in his own words.

Retired Snohomish County Superior Court Judge Anita Farris smiles as she speaks to a large crowd during the swearing-in of her replacement on the bench, Judge Whitney M. Rivera, on Thursday, May 9, 2024, at Snohomish County Superior Court in Everett, Washington. (Ryan Berry / The Herald)
One of state’s most senior judges retires from Snohomish County bench

“When I was interviewed, it was like, ‘Do you think you can work up here with all the men?’” Judge Anita Farris recalled.

A truck drives west along Casino Road past a new speed camera set up near Horizon Elementary on Wednesday, May 8, 2024 in Everett, Washington. (Olivia Vanni / The Herald)
After traffic cameras went in, Everett saw 70% decrease in speeding

Everett sent out over 2,000 warnings from speed cameras near Horizon Elementary in a month. Fittingly, more cameras are on the horizon.

The Monroe Correctional Complex on Friday, June 4, 2021 in Monroe, Wash. (Olivia Vanni / The Herald)
Trans inmate says Monroe prison staff retaliated over safety concerns

Jennifer Jaylee, 48, claims after she reported her fears, she was falsely accused of a crime, then transferred to Eastern Washington.

Inside John Wightman’s room at Providence Regional Medical Center on Wednesday, April 17, 2024 in Everett Washington. (Annie Barker / The Herald)
In Everett hospital limbo: ‘You’re left in the dark, unless you scream’

John Wightman wants to walk again. Rehab facilities denied him. On any given day at Providence, up to 100 people are stuck in hospital beds.

Firefighters extinguish an apartment fire off Edmonds Way on Thursday May 9, 2024. (Photo provided by South County Fire)
7 displaced in Edmonds Way apartment fire

A cause of the fire had not been determined as of Friday morning, fire officials said.

A mural by Gina Ribaudo at the intersection of Colby and Pacific for the Imagine Children's Museum in Everett, Washington on Thursday, May 9, 2024.  (Annie Barker / The Herald)
Downtown Everett mural brings wild animals, marine creatures to life

Pure chance connected artist Gina Ribaudo with the Imagine Children’s Museum. Her colorful new mural greets visitors on Colby Avenue.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.