Route 9 South is closed at exit 1 in Old Saybrook after a trailer of a tandem tractor-trailer rolled over at the entrance to Interstate 95 North.
Cars will not be able to get on I-95 North while crews turn the truck upright.
No injuries are reported. Police said the road should be clear in around half an hour, or around 11 a.m.
Photo Credit: Connecticut DOT Traffic Cameras