Oncor Transmission Line Project Information

Oncor Electric Delivery is proposing a new transmission line through southwest Denton County. Oncor is considering several different routes, some of which enter west Flower Mound. The proposed Ramhorn Hill-Dunham 345 kV Transmission Line Project will connect two proposed switches, one south of Rhome in Wise County and the other located southeast of the FM 1171 and Hwy 377 interchange.

In November, Oncor contacted property owners within 500 feet of the potential proposed routes. On Dec. 7-8, 2022, Oncor held public meetings about the project. 

Handouts and Resources

Oncor has provided the following resources with additional information about the project:


Oncor is accepting public input through Jan. 20, 2023, but recommends submitting input as soon as possible and preferably by Dec. 31, 2022. 

You can contact the project manager for this project, Ife Adetoro, by phone at 214.486.4918 or by email at transmissionprojects@oncor.com. (If you complete the Public Meeting Feedback Form, which is linked above, you can send that form to this email). 

Next Steps

Flower Mound Town Council met in closed session during its Dec. 19 regular meeting to consult with the Town attorney about the project. Once reconvened in open session, Town Council voted 5-0 to pass a resolution expressing concern about the impacts the project will have on Flower Mound residents. Read the resolution here. Oncor representatives attended Town Council’s Jan. 19 work session to discuss the project further. Watch the video here. Mayor Derek France also met with Congressman Michael Burgess, the mayors of Northlake and Argyle, Oncor representatives, and Army Corps of Engineers regional leadership staff to discuss a potential route through Corps land and finding a solution that could work for all the agencies involved. Those conversations are ongoing.