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On Feb. 5, 2024, ATXI and Ameren Illinois jointly submitted an application to the Illinois Commerce Commission (ICC) for a Certificate of Public Convenience and Necessity (CPCN) for the Program. For more information on the ICC filing, visit https://www.icc.illinois.gov/docket/P2024-0088.
On July 2, 2025, the ICC issued a Final Order and CPCN and approved a route that includes options in Adams and McDonough counties (the Approved Route). The Program team is working with federal, state and local agencies to determine the final routes in those areas, along with any necessary permitting.
The team gathered and reviewed data from community members, landowners, and stakeholders during different stages of the routing process. Our first series of engagement was hosted in August 2023 to gather input on the Route Segments. The second series of engagement was hosted in October 2023 to gather input on the Preliminary Route Alternatives. All input received during our two phases of engagement was reviewed and considered, along with our routing criteria during the development of the Proposed Route.
Public collaboration remains a top priority for our team, and we appreciate your participation throughout our public engagement process. We encourage you to stay involved in the process by joining our program email or mailing list to receive updates on the program in your county.
The process of acquiring real estate along the Approved Route is currently underway with landowners that own property along existing transmission corridors and is anticipated to begin for those affected by new transmission corridors in fall 2025. Affected landowners can find additional information about the real estate process by clicking here.
Pre-construction activities, including field surveys, are taking place throughout the Program area. Construction is anticipated to begin in 2026, with different start dates in each community.
The Program is scheduled to be in service by June 2029.
Interactive Map
Pre-construction activities are anticipated to start in 2024 for the Program. To properly design and build the structures, Ameren surveys the properties affected by the program to determine legal boundaries, soil conditions, proper foundation depth, cultural resources and environmental sensitivities. Some parcels may also require permanent or temporary access to the right-of-way for construction and maintenance at various points along the line.
Prior to construction, Ameren will conduct surveys to collect information necessary for construction to start. The field data we collect will help our engineers determine the final design and structure locations and will help to minimize impacts to cultural and biological resources during construction. Examples of types of surveys conducted include:
- Wildlife Surveys
- Archaeological Surveys
- Wetland and Stream Surveys
- Soil Surveys
- Property Surveys
- Vegetation Clearing