The so-called collector-distributor lanes that lead to I-90 were reopened around 9:30 a.m. after a closure caused by the incident.

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A dump truck hit and killed a person that attempted to cross Interstate 5 near downtown Seattle Wednesday morning, clogging southbound traffic.

The incident happened around 7 a.m., forcing the closure of so-called collector-distributor lanes that lead to Interstate 90 and the mainline exit to Dearborn Street, said Washington State Patrol spokesman Trooper Rick Johnson.

The lanes were reopened by around 9:30 a.m., but traffic had backed up so much that the average drive time from Everett into Seattle more than doubled, according to the Washington State Department of Transportation.

Johnson said he did not have more information about the victim or why the person tried to cross the busy interstate.