Irby & Entergy Complete the Mud Lake – Big Lake Transmission Project

Oct 10, 2023

Alongside Entergy Louisiana, Irby Construction Company has completed the Mud Lake – Big Lake Transmission Project. For over a year, Irby has been working tirelessly to bring energy reliability to the people of Southwest Louisiana through transmission and grid improvements. These improvements included 15 miles of transmission line construction, a new substation build, upgrades to three existing substations, and the installation of approximately 150 poles and structures.

The Mud Lake – Big Lake project spans Southwest Louisiana from an existing substation just west of Mud Lake near the Calcasieu and Cameron parish line to a new substation near Tank Farm and Big Lake roads in Lake Charles. Entergy knows the importance of grid resiliency when it comes to the strong wind storms and hurricanes that attack the Gulf, and that is why many portions of the new transmission lines were built to withstand winds of up to 140 and 150 mph, with a crossing at Calcasieu River and Intercoastal waterway built to withstand up to 175 mph winds.

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Irby crews hard at work completing the Calcasieu River crossing portion of the Mud Lake – Big Lake 230kV Transmission project.