UPDATE: All lanes of traffic are now clear.
------------------------------------------------------
Wrightstown, WI -- A jack-knifed semi caused backups on I-41 northbound in Wrightstown early Tuesday morning.
The crash happened just before 6:00 a.m.
Traffic was re-routed off the J exit in Kaukauna.
The semi has been towed away.
Traffic is running on one lane of I-41 north.
Things are moving slow so you may want to use an alternate route to avoid backups.
