Recent delays on the Ambassador Bridge were caused by construction work on the busy Canada-U.S. crossing, say bridge officials. 

Crews installed barriers on the Canadian side of the bridge in order to do repairs to the railings, explained Stan Korosec, director of security with the Canadian Transit Company.

Earlier this month Transport Canada ordered the bridge company to install barriers after finding safety deficiencies with a section of railings and curbs on the Canadian side.

"We're trying to do this without affecting traffic that's going across the bridge," Korosec said. "It makes it difficult to do because we can't shut down the bridge."

Now that the barriers have been installed work can continue without creating delays, Korosec explained. Work on the east side is completed and repairs will soon start on the west railing.

Traffic reports Wednesday morning showed vehicles lined up along Huron Church Road as far back as Tecumseh Road. Some drivers told CBC News they were backed up to the EC Row Expressway

Ambassador Bridge Traffic

Ontario traffic cameras show lengthy line ups of traffic approaching the Ambassador Bridge Wednesday morning. (Ontario Ministry of Transportation)