The Delaware State Police says the tractor trailer carrying approximately 42 cows overturned Saturday around 1:48 p.m. as it traveled along a curve in the ramp from I-495 northbound to Terminal Avenue.
The tractor and livestock trailer landed on the guardrail.
Delaware State Police spokesman Cpl. John Day says two or three cows escaped and walked onto I-495. Troopers identified the driver of the vehicle as 23-year-old Patrick Scholten of Inwood, Iowa.
No people were injured. Day said he didn't know if any cows were injured.
Information from: The News Journal of Wilmington, Del.