Sign up for email from MDOT!Mackinac Straits Corridor Authority (MSCA)
The Mackinac Straits Corridor Authority (MSCA) is responsible for overseeing 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. MSCA will own the tunnel after its construction and provide independent oversight throughout its life.
MDOT Contact: Ryan Mitchell
Members
Michael Nystrom (R), East Lansing, Chair
Term expires Dec. 12, 2021Anthony England (D), Ypsilanti
Term expires Dec. 12, 2024
Meeting Schedule
June 2, 2021
Oct. 13, 2021
Feb. 2, 2022Meeting Recordings
- February 2021
- March 2020
- December 2018
Documents
- Public Act 359 of 2018
- Tunnel Agreement (MCSA/Enbridge)
- Agreement on Technical Specifications (MCSA/Enbridge)
- Assignment of Easement Rights (MSCA/Enbridge)
- Easement for Underground Utility Tunnel at Straits of Mackinac
- Mackinac Straits Corridor Authority will meet virtually Feb. 3
- Third Agreement (Michigan/Enbridge)
- Enbridge Submittal - Jointly Developed Project Specifications
- McMillen Jacobs Michigan, Inc. Contract
- CDM Smith Michigan, Inc. Contract
- Mooney Report on 2020 Progress