Entergy Louisiana and Cleco are teaming up to build a $113 million, 36-mile transmission line that can withstand hurricane-force winds and will improve service reliability for customers in southeast Louisiana.

The line will stretch from Grey to Patterson on steel structures designed to handle winds of up to 150 miles per hour. The work is set to be completed in fall 2018.

Entergy will spend $65 million to build 24 miles of the line, stretching from its Terrebonne Parish substation near Gray to a point near Amelia. Cleco will spend $48 million to build the 12-mile section from Amelia to its Bayou Vista substation near Patterson.

Plans are to use helicopters and marsh buggies to build the transmission line, in order to protect wetlands. About 235 new structures, some on steel foundations that weigh as much as 20 tons, will be erected.

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