An Oakhurst Dairy truck carrying crates of milk overturned Thursday, closing both the on and off ramps from Main Street to the westbound side of Interstate 395.
The driver, Austin Davis of Newburgh, lost control of the truck about 6 a.m., causing it to strike a guardrail and tip onto its side, spilling gallons of milk on the road, according to Shannon Moss, a spokesperson for the Maine Department of Public Safety.
Davis, 35, was taken to a hospital with injuries, but his condition was unknown around midday, Moss said.
The on and off ramps at exit 3 will be closed for several hours while crews from the Maine State Police, Bangor Fire Department and the departments of Transportation and Environmental Protection address the crash.
The crash remains under investigation, but Moss said speed appears to be a contributing factor.