Grain Belt Express Awards $1.7B to U.S. Contractors Quanta and Kiewit to Build Largest Transmission Line in U.S. History

May 7, 2025

Kansas City, MO – Grain Belt Express, the largest electric transmission project in the U.S., today announced nearly $1.7 billion in combined U.S. contractor awards to Quanta Services (Quanta), a leader in specialized infrastructure solutions for the energy industry, and Kiewit Energy Group Inc. (Kiewit), one of America’s leading engineering, construction and procurement companies.

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