Traffic Alert: Jackknifed semi shuts down northbound I-94 tunnel to go west to I-43 FOX 6 Now Milwaukee News Published August 25, 2020 9:52 AM CDT Share Copy Link Email Facebook Twitter LinkedIn Reddit Published August 25, 2020 9:52 AM CDT Facebook post unavailable MILWAUKEE - The ramp from I-41/94 northbound to I-43/894 westbound is closed because due to a jackknifed semi. All traffic is being diverted to College and Layton.