Kiewit Corp. celebrated on March 9 the topping-out of its 252,000-sq-ft regional headquarters in the RidgeGate community in Lone Tree, Colo. The headquarters will provide a central hub for the company’s Colorado-based staff of 900, who are currently spread across the state in leased office space.

Kiewit’s new regional campus is situated on 12.6 acres of land just west of Interstate 25 at the Lincoln Avenue interchange. Kiewit Building Group is serving as general contractor, with Stantec as architect.