McGrath & Associates to build substation for Ameren Transmission Illinois

Ameren Transmission Co. of Illinois (ATXI) has contracted with McGrath & Associates for $3 million of construction services to build a new substation near Palmyra, Missouri, as part of the Illinois Rivers Project.

McGrath’s work on the substation includes site cut and fill, 477 drilled pier foundations, transformer and switchgear foundations, underground conduits and power runs and fencing.

This substation is part of ATXI’s Illinois Rivers Project, a new 380-mile, 345,000-volt transmission line that will interconnect Missouri, Illinois and Indiana, and improve the reliability and efficiency of the electric power grid.

The estimated $1.1 billion Illinois Rivers transmission project is Ameren's largest-ever transmission project and the longest single transmission line project in Illinois history, according to the company.

The transmission line route through Illinois was finalized by the Illinois Commerce Commission February 20, 2014.

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