Traffic backs up for miles on NB I-5 in North Seattle

SEATTLE — Only one lane of traffic was open on northbound I-5 near Northeast 85th Street for a fatality investigation Thursday.

The lanes were closed for about two hours.  Three lanes were reopened at about 8:15 a.m. The final lane opened shortly before 9 a.m.

At the height of the slowdown, traffic was backed up about 7 miles, all the way to the Michigan curve.