Emergency crews responded to a crash at the exit of a ramp in the Mitchell Interchange.
Lanes from eastbound I-43/94 to northbound I-43 were closed due to a crash in the tunnel for a time Monday morning.
The crash was reported around 7:30 a.m.
DOT officials said the accident appears to be serious and involves a motorcyclist.
Matt Salemme in NewsChopper 12 reports that deputies blocked off the ramp for a time, then reopened the ramp to traffic around 8:10 a.m.
Traffic appears to be going by the scene in the left lane.
Officials have not released any information on the crash or injuries.
Tunnel reopened in Mitchell Interchange after traffic crash