Weeks Marine Inc.

Founded in 1919, Weeks Marine, Inc. is a premier marine contractor with over a century of experience delivering innovative solutions in marine construction, dredging, tunneling and aggregates. In 2023, Weeks Marine was acquired by Kiewit Corporation, helping further expand its resources and capabilities in these markets. With an unwavering commitment to excellence, Weeks Marine and its wholly-owned subsidiaries — Healy Tibbitts Builders, Inc., McNally International, Inc., and North American Aggregates, Inc. — continue to lead the industry and make substantial contributions to marine projects worldwide.