ARLINGTON – Investigators are working to determine the cause of a Wednesday morning fire that destroyed an old barn on the city’s Stormwater Wetland property west of Haller Park.

Arlington firefighting crews responding at about 7:30 a.m. arrived to find the barn and adjacent structures fully engulfed.

The blaze was extinguished quickly by crews from Arlington Fire, North County Fire & EMS, Snohomish County Fire District 21-Rural Arlington and Snohomish County Fire District 22-Getchell.

The Snohomish County Fire Marshal is investigating the cause. The buildings did not have access to power.

Anyone with information about the fire is asked to contact the SNO911 non-emergency line at 425-407-3999.

Meantime, the Eagle Trail and off-leash dog park are closed while crews extinguish hot spots and remove the collapsed and damaged buildings, city spokeswoman Kristin Banfield said.

The closure is expected to last a couple of days while cleanup crews put up temporary fencing, demolish the structures and remove debris.

“Respect that we do need to keep it closed until we can put these safety measures in place,” Banfield said.

“We’re going to try to get the trail and dog park open as soon as we can,” she said. “Summer is a popular time there.”