Thornton Tomasetti recently promoted Gary Storm to senior principal and Darren Hartman and Robert Treece to principals in the Kansas City, Mo., office of the international engineering firm.
Storm has more than 30 years of structural engineering experience, with an emphasis on the design of long-span roof structures for stadiums and arenas across the globe.
Hartman brings more than 20 years experience to his new position. He has experiencein managing design projects, negotiating contracts and supervising engineering design project staff.
Treece brings 25 years of epxerience in structural design to his position, including structural analysis and review of a variety of building types.