Southwest Louisiana Transmission Infrastructure Upgrade

Crews have completed the 138kV line work along Louisiana Highway 99.
Crews are currently stringing wire from the new Henning Substation to the existing Carter Substation.
  - Crews will be working along Atterbury and Landfill roads.
Crews are clearing vegetation along the Carter-Serpent line and will return in the fall to start replacing the structures.
  - Crews will be working from Louisiana Highways 102 and 3086, as well as Manuel, LeBlue, Langley, Estes, LeFargue, Parish Line, and Unkel roads.
Entergy asks that the traveling public use caution when approaching the work zones and abide by the posted signage and flaggers to keep both the crews and your neighbors safe.

Construction is underway on Entergy Louisiana’s technological upgrade to its electric power transmission grid in Jefferson Davis Parish. The project will enhance reliability, increase transmission capacity and help ensure the availability of affordable power now and into the future for the parish. The maps below outline the areas affected by the projects.

Project Maps

Electric Power Transmission System Upgrade Facts


What is the project's timeframe?

Construction has already begun on the project. It is scheduled to be completed by February 2020.

Should I be concerned about safety issues?

Our top priority is to have a safe, accident-free environment. Entergy Louisiana has developed detailed on-site safety measures that have been tailored to meet the needs of the project, community and impacted areas.

How will this affect traffic?

Entergy will work closely with local officials to develop detailed execution and traffic control plans and will provide adequate signage to help the public safely navigate around project work areas.

When will the crews be working?

Crews will work primarily from dawn to dusk, approximately 10-12 hours per day.

Will I lose power?

Entergy has identified a few locations that will require brief service interruptions as a result of this project.  Entergy will provide advance notice to all affected customers so that customers can plan accordingly.

Where should I report issues and concerns regarding this project?

Please call the project hotline 337-821-2424 or email us at