Apex-Phoenix Transmission Line Project

To support electric reliability and increase capacity in the Ann Arbor area, ITC is constructing approximately three miles of underground transmission line to connect a new DTE Energy substation named Apex, located near the intersection of Huron Parkway and Hubbard Road, to an existing substation named Phoenix, located just north of Dhu Varren Road.

During the first phase of construction in 2017, ITC installed approx. 1,100 feet of underground duct bank, which will hold the transmission cables, along the southwest portion of the Dhu Varren – Nixon roundabout. During the second and third phases of construction, which began in April 2018, ITC constructed approximately 2.5 miles of the underground duct bank and manhole system along Dhu Varren, Nixon and Huron Pkwy. ITC continues to complete construction and restoration in 2019 to meet the anticipated energy needs of the region.

ApexPhoenix_Project Map

Project Approach
ITC’s approach to transmission line development takes into consideration the unique nature of every project. Projects are assessed individually for safety, reliability, cost-effectiveness, environmental impacts and community impacts to determine the best transmission solution for each project.

Public Participation

ITC recognizes the critical role that local residents, landowners and communities play in reviewing and hosting new electric transmission lines. ITC is committed to open, honest and frequent communications with landowners. We work respectfully with landowners throughout the design and construction process to identify possible routes for the project that minimize impacts to their properties.



  • Why is this project necessary?
    As in much of the United States, the electric infrastructure serving the Ann Arbor area was constructed decades ago and was not built to support modern-day demands. This can lead to inconvenient, and sometimes costly, power outages. The electric system improvements will enhance the reliability of electric service to Ann Arbor residents and businesses, and create additional capacity to support growth throughout the region.
  • When will this project start, and how long will it take?
    Construction began in December 2017. Our goal is to complete construction by the end of 2018 to meet the anticipated energy needs of the region.
  • Where will the project be located?
    The Apex-Phoenix transmission line will extend from the existing Phoenix substation located north of Dhu Varren Road to the new Apex substation near Huron Parkway and Hubbard Road.
  • Will traffic be impacted by construction?
    Drivers should anticipate periodic lane restrictions on Dhu Varren Road, Nixon Road and Huron Parkway during construction. Please refer to the City of Ann Arbor website for the most up-to-date traffic control information.
  • How will you be updating area residents about the project?
    Project updates will be available on this page and will be communicated periodically by email to area residents. If you would like to join our email list, please provide your information.



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