Crews begin removing debris covering Highway 530

OSO — Work crews have started digging up the muck and debris left by the Oso mudslide to uncover Highway 530.

After they dig out the road, it can be repaired and rebuilt. State transportation officials say they hope to have the highway open for general traffic by October.

“We’re working 24/7,” said Mark Sawyer, the site manager for the state Department of Transportation.

Cleanup started Tuesday. Crews have to clear debris about 15 to 20 feet deep from roughly 1,500 feet of the highway, he said.

The March 22 landslide dumped about 10 million cubic yards of material — soil, sand, trees, rocks, clay — onto the valley floor and wiped out a neighborhood, killing at least 41 people. Searchers have found the remains of all but two victims.

Based on debris-field analysis, the missing victims’ bodies are likely not on the road and not likely to be recovered by crews clearing the highway, said Kevin Bartoy, the Transportation Department’s chief archaeologist on the project.

Bartoy usually scours state transportation project sites for artifacts with historical or cultural significance.

It is a task that sounds easy, but doing it efficiently requires a trained eye and experience.

“Most people look for things. We don’t, we look for shapes,” Bartoy said.

Now he oversees teams of state archaeologists helping recover personal possessions buried in the slide.

They are looking for human remains, personal items — things such as wallets, wedding rings and wristwatches — and personal belongings such as photo albums, keepsakes and letters.

Much of the digging is being done by several excavators — powerful, yellow construction machines with an engine, driver cab, boom and shovel on top of tractor treads. Beside each are two spotters looking for items to recover. They can stop excavation if they see something.

The primary spotters are state archaeologists, who watch the shovel go into the ground. The secondary spotters are locals hired to scan the excavated material as its poured into big diesel trucks.

The trucks haul the material to a nearby dump site, where more archaeologists watch for recoverable items.

The highway is mostly covered by soil and debris from the hillside, Bartoy said.

Many of the local spotters are familiar with the debris field, having walked, waded and crawled through it looking for victims after the landslide, he said.

Hiring locals also hopefully provides some economic relief to people affected by the slide, he said.

Most recovered items are cleaned and taken to Arlington, where Snohomish County set up an office to return them to survivors or victims’ families.

The Snohomish County Sheriff’s Office is holding any drugs, guns and money that turn up. Deputies are also taking any high-value items “that might walk off,” Bartoy said.

Dan Catchpole: 425-339-3454; dcatchpole@heraldnet.com; Twitter: @dcatchpole.

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

Frank DeMiero founded and directed the Seattle Jazz Singers, a semi-professional vocal group. They are pictured here performing at the DeMiero Jazz Festival. (Photos courtesy the DeMiero family)
‘He dreamed out loud’: Remembering music educator Frank DeMiero

DeMiero founded the music department at Edmonds College and was a trailblazer for jazz choirs nationwide.

Provided photo 
Tug Buse sits in a period-correct small ship’s boat much like what could have been used by the Guatamozin in 1803 for an excursion up the Stillaguamish River.
Local historian tries to track down historic pistol

Tug Buse’s main theory traces back to a Puget Sound expedition that predated Lewis and Clark.

Archbishop Murphy High School on Friday, Feb. 28 in Everett, Washington. (Will Geschke / The Herald)
Former teacher charged with possession of child pornography

Using an online investigation tool, detectives uncovered five clips depicting sexual exploitation of minors.

A person waits in line at a pharmacy next to a sign advertising free flu shots with most insurance on Thursday, Feb. 27, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Have you had the flu yet, Snohomish County? You’re not alone.

The rate of flu-related hospitalizations is the highest it’s been in six years, county data shows, and there are no signs it will slow down soon.

City of Everett Principal Engineer Zach Brown talks about where some of the piping will connect to the Port Gardner Storage Facility, an 8-million-gallon waste water storage facility, on Thursday, Feb. 27, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Port Gardner Storage Facility will allow Everett to meet state outflow requirements

The facility will temporarily store combined sewer and wastewater during storm events, protecting the bay from untreated releases.

Founder of Snohomish County Indivisible Naomi Dietrich speaks to those gather for the senator office rally on Wednesday, Feb. 5, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Membership numbers are booming for Snohomish County’s Indivisible chapter

Snohomish County’s Indivisible chapter, a progressive action group, has seen… Continue reading

Everett in the path of ‘strong to severe’ thunderstorms with hail, wind and rain possible

The National Weather Service lists a 2-4% chance of a tornado near Everett on Wednesday.

Dr. Katie Gilligan walks down a hallway with forest wallpaper and cloud light shades in the Mukilteo Evaluation and Treatment Center with Amanda Gian, right, and Alison Haddock, left, on Monday, March 24, 2025 in Mukilteo, Washington. (Olivia Vanni / The Herald)
Partnership works to train Snohomish County mental health doctors

Compass Health works with medical students from Washington State University to provide psychiatry training. Both groups hope to fill gaps in much-needed services.

Edmonds red-light camera program begins Friday

The city has installed cameras at two intersections. Violators will receive warnings for 30 days before $145 fines begin.

Snohomish County Elections office to host candidate workshops in April

The workshops will cover filing requirements, deadlines, finances and other information for aspiring candidates.

Port of Everett seeks new bids for bulkhead replacement project

The first bids to replace the aging support structure exceeded the Port of Everett’s $4.4 million budget for the project by 30%.

‘An uphill battle’: South County firefighter facing his toughest fight

Nick Jessen, 38, has stage four lung cancer, a disease disproportionately affecting his profession.

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.