The right lane of US 45 northbound near Burleigh Street is closed as first responders battle a semi fire, according to a WisDOT notification.
Here's a photo from a nearby traffic camera:

511 WI
According to the alert, the semi fire started at 10:05, and the closure is estimated to last for two hours.
No injuries have been reported.
Let's talk:
Hey there! At TMJ4 News, we're all about listening to our audience and tackling the stuff that really matters to you. Got a story idea, tip, or just want to chat about this piece? Hit us up using the form below. For more ways to get in touch, head over to tmj4.com/tips.
It’s about time to watch on your time. Stream local news and weather 24/7 by searching for “TMJ4” on your device.
Available for download on Roku, Apple TV, Amazon Fire TV, and more.