PORTLAND, Ore. (KOIN) — Cattle on the freeway is never a good thing.

A livestock trailer tipped over, closing both sides of I-5 at the Wilsonville road exit for a time., TVFR tweeted. Crews worked to contain the cows roaming the freeway. Northbound I-5 re-opened around 4:15 p.m., but it took a little longer for the southbound lanes to open.

But all lanes were re-opened around 5 p.m., TVFR said.

There were 31 cows that got loose on the freeway.

The cattle were loaded into another trailer to allow traffic to begin moo-ving again.

TVFR said the driver of the tipped trailer did not need to be taken to a hospital for treatment.

KOIN 6 News will have more information as soon as possible.