Southeast Texas’ population and economic opportunities continue to grow year after year, particularly in the area of the Hwy 249 extension through Grimes County. To support this growth, Entergy Texas, Inc. (ETI) has launched a project designed to bring additional power to one of the fastest growing areas in Texas. The Castle 230-kV Transmission Line and Substation Project calls for the construction of a new transmission line and new substation. The work will support and enable economic growth in Southeast Texas as well as enhance reliability for our existing and future customers. 

The purpose of this project is to connect the new Castle Substation along FM 1774 near the community of Todd Mission in Grimes County to the existing Ponderosa-to-Grimes 230kV transmission line, in the vicinity of Dobbin.  The existing Grimes Substation is located in  northern Grimes County.  The Ponderosa Substation is located in Montgomery County. Once the proposed project is completed, the transmission line and substation will provide an additional source of power for the growing developments around the expansion of the Hwy 249. This new source of power will help ensure reliable service to meet the local power needs by providing a distribution source to support the area’s load growth. The Castle project will be designed to allow for the future economic development in the area. 

There are a number of routes that the new 230kV transmission line could take between the existing Ponderosa - Grimes transmission line and new Castle Substation. Potential routes, along with the various segments that they would be comprised of, are shown in the map below along with the routing criteria used to develop and evaluate them. ETI has also included the preliminary construction specifications so you will know what to expect once the project is underway and complete.

All routes and route segments included in this notice are available for selection and approval by the Public Utility Commission of Texas.

At Entergy Texas, we have a simple set of values: Focus on our customers, treat people with respect and act with integrity.  Our project construction plan will be developed with you, our valued customer, in mind.  Once work begins, we will work safely during reasonable hours with as little inconvenience to you as possible.

  • Project Questionnaire
    • Click here for the online questionnaire. This link will be active until November 19, 2020.

Entergy values your input and questions related to this project. There will be multiple methods of contact:

  • A questionnaire was included in the Notification letter delivered by the US Postal Service to your address.
  • The same questionnaire included in the mail is available for download (either print and return via postal mail or email to Entergy) or online.
  • The phone number listed on the notification letter delivered by the US Postal Service to your address will have voicemail capability and will enable Entergy to return your call to discuss specific items. 
  • Email address on the Notification letter delivered by the US Postal Service to your address and on this website will enable you to provide feedback, request a call or ask questions. 
  • A scheduled webinar live presentation of the project with a chat function to address questions on Nov. 5, 2020.
  • The landowner's name, address and preferred method of contact should be provided in all comments to Entergy.

How to contact us about this project: 

Mailing address:

Attn: Brad Coleman
1050 IH-10 North
Beaumont, TX  77702

Phone: 281-689-4601