Entergy Louisiana has started work on the second phase of a $69 million upgrade to its electric transmission infrastructure along the Lapalco Boulevard corridor on the West Bank of Jefferson Parish, stretching from Bayou Segnette to Harvey.

The project, which is intended to improve reliability, includes replacing all of the existing wooden H-frame structures with new single-pole steel structures, and the existing transmission lines with a new high-voltage wire that will allow power to move more reliably and efficiently, the utility said.

“These advanced upgrades will not only move power more efficiently, but the new structures will also be built to withstand winds of up to 150 mph, creating a stronger, more resilient transmission system,” Melonie Stewart, Entergy Louisiana's director of customer service, said in a statement.

The first phase of the project, along the Ninemile corridor, began in September and will be completed this month. The second phase, along the Lapalco Boulevard corridor, started Tuesday and will be completed by June. The final phase of the Ninemile-Westwego and Ninemile-Harvey projects, which includes work along the Central Avenue and the Lapalco corridor to the Harvey substation, is slated to start in February and finish by June.

Additionally, phase three of the Ninemile-Barataria project, which rebuilds a portion of the transmission line through the Barataria marsh, will begin in the fall and be completed by spring 2019.