Line 5

Enbridge Energy has maintained that their twin oil and natural gas liquid pipelines under Lake Michigan at the Straits of Mackinac are safe.

But what if one of them did break open? Where might the oil go?

Today, the University of Michigan’s Water Center released new computer simulations to help answer that question.

David Schwab is a hydrodynamics expert with the Water Center.

“I don’t know any place where the currents are as strong, and change direction as quickly, and as frequently as in the Straits of Mackinac,” Schwab said.

Enbridge Energy’s Line 5 goes right under Lake Michigan at the Straits of Mackinac.

At the Straits, it splits into two pipelines. Both pipelines are 63 years old (they were installed in 1953).

Right now, we don’t have all the information about the condition of those pipelines. As we’ve reported many times, Enbridge holds all the cards. The company has shared some information with the public, but not a lot.

Recently released information about the condition of Enbridge’s Line 5 oil pipelines in the Straits of Mackinac shows some signs of corrosion. But company officials continue to say the twin pipelines running under Lake Michigan are safe.

There are many Michiganders feeling uneasy about the idea of those 62-year-old twin oil pipelines running along the bottom of the Straits of Mackinac.

The aging Line 5 can carry 540,000 barrels of oil and natural gas liquids each day.

Enbridge has made promises to keep the pipeline maintained and said it’s got an emergency response team in place, but there’s a complicating factor that no one can control: big, turbulent waves.

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