Mutual of Omaha this week provided a progress update on the construction of its future downtown headquarters. In late August, the tower crane completed its sixth and final jump, reaching its full height of 780 feet. The final shear core concrete has been poured, officially completing all vertical concrete work. Structural steel now extends past Level 35 on all sides. Interior work is now underway through level 21. Though it won’t be fully completed until late 2026, the 44-story tower is already the tallest building in Nebraska, Iowa, Missouri, Kansas and South Dakota…