www.ameren.com

Limestone Ridge Project

Ameren Transmission Company of Illinois (ATXI) in collaboration with the Wabash Valley Power Alliance (WVPA) is proposing to construct a new, approximately 14-19 mile 138 kV transmission line and state-of-the-art- substations to improve energy reliability for local communities in Southeast Missouri. The new line will connect two new substations in Perry and Cape Girardeau Counties. The proposed in-service date for the project December 2023.

Virtual Engagement Opportunities

Due to COVID-19, we are taking action to keep you and our staff safe and healthy. Rather than an in-person open house, we’re providing community members with various engagement opportunities to learn more about the project and provide input on the project development within the study area.

Join one of our Virtual Webex Meetings on October 28
• Each meeting will include a presentation, Q&A session and explanation of input opportunities.

  • No need to register – Use the links to join the meetings:
    • Webinar #1 (12:00 p.m.):
      • Click here to join and enter your information along with the following event password: LRPMEETING1
      • Join by Phone: Call 408.418.9388 and Enter Access Code 146 694 7519
    • Webinar #2 (7:00 p.m.):
      • Click here to join and enter your information along with the following event password: LRPMEETING2
      • Join by Phone: Call 408.418.9388 and Enter Access Code 146 410 8355

Please contact the project team at 573.232.3003 if you have any issues joining one of the Virtual Webex Meetings.

Upcoming engagement opportunities beginning October 19:

  • Visit our Virtual Open House
    • Available anytime from October 19 - 30
  • Leave a comment on our Interactive Comment Map     
    • Available anytime from October 19 - 30
  • Pick up a packet of project information
    • Available for pick up Monday-Friday between 7:30am-5:00pm from October 19 - 30 at Citizens Electric Corporation located 1500 Rand Avenue, Perryville MO 63775.
  • Request a mailed or emailed packet of project information
    • Email us or leave a message on our hotline with your preferred address and we’ll send you a packet of project materials.
  • Contact our project team
    • Leave a message on our project hotline (573.232.3003) anytime between October 19 – October 30 and our project team will call you back within 24 hours.

Project Schedule

All items shown are pending regulatory approvals. Schedule is subject to change.

2020

Data Collection

Collect digital & field data
Public engagement
Route development

2021

Permitting and Design

Preliminary engineering
File Certificate with PSC
Certificate reviewed by PSC

2022

Surveys and Real Estate

Field surveys
Real estate acquisitions
Engineering and permitting
Preconstruction activities

2023

Construction

Construction
Project complete in December

FAQs

In collaboration with Wabash Valley Power Alliance (WVPA), Citizens Electric Corporation and Ameren Missouri, Ameren Transmission Company of Illinois (ATXI) is proposing to construct a new, approximately 14-19 mile 138kV transmission line and state-of-the-art substations to improve energy reliability for local communities in Southeast Missouri. The new line will connect two new substations in Perry and Cape Girardeau Counties.
The eastern corridor of the project area was removed as a route option based upon further review of the eastern area's steep terrain, limited construction access and environmental sensitivities.
The Limestone Ridge Project will improve energy reliability, provide additional energy support to local manufacturing facilities and allow for efficient future expansion of the transmission grid. The proposed in-service date for the project is December 2023.

ATXI will seek feedback and input from the public through a series of public engagement events (summer – fall 2020) before submitting a route and application for a Certificate of Convenience and Necessity to the Missouri Public Service Commission in Q1 2021. The project is proposed to be in service by December 2023.

Limestone Ridge Project project schedule

The route has not yet been determined. Our project team is in the process of reviewing and gathering data from stakeholders, landowners, and community members and will develop corridors, preliminary routes and a final route based on defined routing criteria and stakeholder and community member input. Feedback and input will be collected through (summer – fall 2020) before submitting a route and application for a Certificate of Convenience and Necessity to the Missouri Public Service Commission in Q1 2021.

Corridors and routes are developed considering defined routing criteria. The goal of the routing process is to take advantage of Opportunities while understanding and minimizing impacts to Sensitivities and adhering to technical guidelines.

The routing process starts with a large study area, which is then narrowed into wide corridors. Preliminary routes segments (more narrow) are then developed within the corridors using routing criteria. Stakeholder and community input is sought throughout the process. The goal is to identify a final route that will balance minimizing impacts to Sensitivities, with the cost of building and maintaining a safe and reliable transmission line within the statutory requirements.

Due to COVID-19, we are taking actions to keep the project community and the project team safe and healthy. Rather than hosting an in-person open house, various other engagement opportunities will be made available at each phase of the routing process including project information mailings, virtual public Webex meetings, online open house with interactive comment map and available information packets (received by mail or pick-up at Citizens Electric). In addition, a project website, local hotline number and project email are available for the public to share input any time. All input gathered is reviewed by the routing team.
We appreciate your participation. We not only want your comments, we encourage them. You can submit questions, leave a comment, and provide input on the website. We also have a dedicated Project hotline available at 573.232.3003. If you leave a message, a Project representative will return your call. You can also send us an email at limestoneridgeproject@ameren.com.
During the routing process, we contact regulatory and resource agencies to notify them of the project and seek input regarding resources which could potentially be impacted within the study area. As the routing process continues, we continue to engage these agencies regarding minimizing potential impacts, additional surveys, if necessary, and permits that may be required for construction.
Construction is scheduled to begin in early 2023 and will take approximately one year – completed by December 2023.

Limestone Ridge Project structure graphic

We anticipate using galvanized steel monopole structures. The structures will be approximately 100-160 ft. tall. We estimate 6-7 structures per mile with an average span range of 800-1,000 ft. between structures. The Limestone Ridge Project steel monopole structures will have 7-12 ft. diameter concrete foundations. The foundations will range from 30- 40 ft. deep, depending upon the soil conditions.

Trees can interfere with transmission lines by posing a threat to the operational integrity of our system. For safety and reliability reasons, trees, tree limbs, and incompatible vegetation throughout the project area, mostly within the right-of-way, will be removed from the easement area during construction. Our standard easement will also give us the right to remove "hazard trees" – trees that are adjacent to the easement and have some structural defect such that they pose a potential risk to our transmission system. Even though our structures will, in some cases, be taller than the adjacent vegetation, we must also be mindful of the potential for storms to create windblown debris that could impact our facilities. We take our obligation to provide safe and reliable service to our customers very seriously, and work to make sure we are managing vegetation in a safe and responsible manner.
The costs associated with building this transmission line underground would be much higher than constructing the line overhead. We strive to be cost conscious, recognizing that the costs of this Project will ultimately be paid for by Ameren customers. As a result, Ameren Transmission is not proposing to use underground construction on this Project.

Transmission lines are similar to the interstate highway system in the way they will allow energy from generators to travel short or long distances, as needed, at any given moment. There are no restrictions on the type of energy that will flow on the new line. Ultimately, the energy carried on the line will be used throughout the regional grid, including by customers in the Project area and elsewhere.

For a couple of reasons. First, the existing river crossings in the area are not capable of supporting a new transmission circuit. Thus, rebuilding those crossings, or constructing and maintaining new crossings, would be very expensive. Second, the primary beneficiaries of the project are located in Missouri. Thus, we believe it is more equitable for the facilities that will be used to support those beneficiaries be located in Missouri. Finally, I would add that routing in Illinois would pose its own challenges, as most of that land adjacent to the river is also forested and/or in a floodplain.
We anticipate finalizing the specific location of Wabash's substation located in Perry County by fall 2020.
As a company, we continue to assess the changing situation, plan and take proactive actions to protect the safety of our workers, customers and communities and mitigate other risks while remaining focused on delivering on our mission. We recognize that there are uncertainties associated with COVID-19. Despite these distractions, we encourage our workers to remain focused on performing their various duties safely and working together as a team as we continue to power the quality of life for our customers in Missouri and Illinois. Our workers remain vigilant in your health and safety practices, including social distancing, around the clock as a way to limit exposure and mitigate the risk of broad contamination.

Have a question for our project team?

Leave a Comment 

limestoneridgeresources.com

Call Us

(573) 232-3003

Mail Us

Limestone Ridge Project
45 S Minnesota
Cape Girardeau MO 63703

Alert Info
ACCEPT