Gov. Snyder Signs Legislation to Create Authority to Oversee Straits of Mackinac Line 5 Replacement


Michigan Gov. Rick Snyder today signed legislation to protect the Great Lakes, provide energy security for the state’s residents, and create better infrastructure connections between Michigan’s peninsulas.

The new Mackinac Straits Corridor Authority will oversee construction and operation of a tunnel in bedrock beneath the waters of the Straits of Mackinac. The tunnel will house a replacement segment for the Line 5 petroleum pipelines that currently sit on the bottom of the Straits and will accommodate other utilities to improve infrastructure connections between the peninsulas. Senate Bill 1197 is now Public Act 359 of 2018.

“This new law is the result of a tremendous effort by Sen. (Tom) Casperson, my partners in the House and Senate leadership, and a diverse group of stakeholders, including business leaders and union representatives,” says Snyder. “We all understand the importance of bringing certainty to removing Line 5 from the waters in the Straits of Mackinac. By working together, they helped garner bipartisan support to ensure we are protecting the Great Lakes while securing better energy infrastructure for Michigan.”

Gov. Snyder also appointed three members to the authority. According to the new statute, no more than two members can be from the same political party.

Initial appointees include Geno Alessandrini (D-Iron Mountain), business manager for the Michigan Laborers District Council; Anthony England (D-Ypsilanti), dean of the College of Engineering and Computer Science at the University of Michigan-Dearborn; and Michael Zimmer (R-Dimondale), cabinet director for Gov. Snyder. Zimmer will resign from his appointment to the Mackinac Bridge Authority (MBA).

Members will serve six-year terms and are subject to the advice and consent of the Senate. The chair will be chosen by the authority members.

“I want to thank the appointees for being willing to serve on this authority that will have the responsibility of overseeing this critically important piece of infrastructure for Michigan,” says Snyder. “They have the expertise and the qualifications necessary to serve the state well as the MSCA brings an end to concerns over Line 5 continuing to operate in the Straits of Mackinac.”

Under agreements already signed by the state and Enbridge Energy, the company will pay for 100 percent of design, construction, operation, and maintenance of the tunnel for the next 99 years. It will also decommission the twin pipelines in the straits once the tunnel is complete. The project is expected to cost as much as $500 million and create jobs in the professional trades while continuing to provide stable energy prices for state residents.

The authority will own the tunnel after its construction and provide independent oversight throughout its life. The authority will be subject to the Open Meetings Act and Freedom of Information Act.

The new law also creates a Straits Utility Fund to pay for the work of the MSCA, including independent experts to ensure proper construction and operation of the tunnel. The authority will have administrative support from the Michigan Department of Transportation (MDOT) and will be separate and independent from the MBA and MDOT. The authority will provide reports at least annually to the MBA and the MDOT director on construction progress and utility leasing.

The law requires the authority to enter into an agreement with Enbridge on the construction and operation of a straits utility tunnel by Dec. 31, provided certain conditions are met.

The proposed new agreement must include a plan for recruiting, training, and using Michigan workers for the project; allow for multiple utilities to use the tunnel; provide that the tunnel is built to last and will contain potential oil spills; limit liability for the state, the authority, and members of the authority; require that all necessary government approvals be obtained for the tunnel; prohibit the use of eminent domain to acquire property for the project; ensure the state bears no cost for design, construction, operation, and maintenance of the tunnel; ensure that any privately owned portion of the project, including the above-group entrances and any utility lines within the tunnel, are subject to taxation; and reimburse the MBA for any net loss of profit for leasing space for telecommunication lines.

Prior agreements between Enbridge and the state remain in effect and include:

  • replacing the portion of Line 5 that lies at the bottom of the St. Clair River near Port Huron;
  • instituting accelerated risk-reducing measures at 13 priority Line 5 water crossings, in addition to requiring actions at 68 other crossings as identified in a previous Enbridge report;
  • assuring the straits pipeline is not operating when high waves would severely hamper response to a potential oil spill;
  • undertaking a study to evaluate and install additional underwater technologies to better monitor the pipeline under the straits;
  • evaluating and implementing measures to minimize the likelihood of an oil spill at other critical Line 5 water crossings in Michigan;
  • assuring that at least $1.8 billion in financial assurance be provided by Enbridge to respond to a potential oil spill in the Straits or anywhere along Line 5 in Michigan;
  • paying for cameras to be installed at the Straits to support new regulations from the U.S. Coast Guard prohibiting ships in the area from dropping their anchors; and
  • prohibiting heavy crude oil from running through Line 5 and not increasing the volume or type of petroleum products that move through the line.

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