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Weekend commuters headed to the coast saw heavy delays Friday, partly due to the crash of a truck hauling lumber on Interstate 5 (I-5) south in Olympia.

The incident occurred between 9 and 10 a.m. near the Pacific Avenue exit. The (WSDOT) first posted about the incident on X at

(WSP) Trooper reported on what happened just before 10:30 a.m. and stated that a flatbed truck hauling lumber drove off the road and hit a tree.

In an interview with ³ÉÈËXÕ¾ Newsradio Friday, Dattilo said the truck was severely damaged and wedged up against a tree. In addition, some of the lumber that fell off the truck struck a motor home in a resident’s backyard. The person inside the trailer also sustained minor injuries.

Dattilo added in his initial X post that the driver was arrested for driving under the influence (DUI). He sustained minor injuries due to the crash.

Troopers are on scene with a truck collision SB I5 just north of exit 105. A flatbed truck hauling lumber left the road and struck a tree. The driver has been arrested for DUI and sustained minor injuries.

— Trooper John Dattilo (@wspd1pio)

Dattilo told ³ÉÈËXÕ¾ Newsradio the arrest of the suspect was for DUI with a “suspicion of drug impairment.”

“The blood test will take several months to actually show what drugs, if any, were in his system,” Dattilo said. “I’m not privy to what type of drug they suspect. All I know is they do not suspect alcohol.”

The impact the truck incident had on traffic

It took about 4 1/2 hours to clear the scene after the truck collision and was cleared , WSDOT reported on X. At that time, the agency stated that it was going to be “a slog with heavy congestion into Tacoma.” It was suggested that drivers delay their travels or risk “sitting in heavy congestion.”

Earlier, WSDOT posted on X at that the backups extended to eight miles. About 40 minutes later at , the agency posted on X again saying the backup got up to 17 miles.

Well, the backup from this collision in Olympia at mp 107 has officially joined normal Friday afternoon slowdowns in Pierce County. We’re looking at a 17 mile backup and building. Pack your patience if using SB I-5 from Tacoma.

— WSDOT Tacoma (@wsdot_tacoma)

Sam Campbell is a reporter, editor and anchor at ³ÉÈËXÕ¾ Newsradio. You can read more of Sam’s stories here. Follow Sam on , or email him here.

Steve Coogan is the lead editor of MyNorthwest. You can read more of his stories here. Follow Steve on , or email him here.