Interstate 91 South in New Haven is backed up from a crash on Interstate 95 Southbound in New Haven.
Delays are running from exit 1 back to exit 6.
The crash on I-95 involved a tractor-trailer and was between Exits 47 and 46.
Emergency crews hope to have the scene cleared by the morning commute.
You can get a full list of traffic incidents on the state Department of Transportation Web site.
