A popular Edmonton pub has been fined $3,000 for overcrowding, with more than 70 per cent more people inside the establishment in one time than what is legally allowed.

O’Byrne’s Irish Pub, located at 10616 82nd Ave. Northwest, pleaded guilty in June to a charge of overcrowding in connection to St. Patrick's Day festivities on March 17.

Approximately 680 people were found in O’Byrne’s by Edmonton police officers that day. The limit of people allowed there at one time is 399.

"These limits on overcrowding help protect the public at Edmonton establishments," said Patricia Young, fire prevention officer, in a release.

"We set the occupancy loads after taking into account the amount of floor space as well as the number, locations and sizes of fire exits," she added.

"Our goal is to reduce the chance of a bottleneck if there’s a need for guests and staff to evacuate during an emergency."

Fines of up to $15,000 can be handed to businesses for a first overcrowding offence.