Hartford and Navigators want their money back. They say Nautilus walked away from a Missouri bridge claim it should have covered.
The two insurers sued Nautilus Insurance Company on May 14, 2026 in federal court in Arizona, alleging Nautilus wrongfully denied defense and indemnity to their shared insured, KCI Construction Company. According to the complaint, KCI was the general contractor on a Missouri Department of Transportation project to rehabilitate 24 bridges along Route I-55 in St. Louis.
KCI subcontracted the deck demolition on one bridge to Premier Demolition, Inc., the filing states. The subcontract required Premier to carry Commercial General Liability insurance and name KCI as an additional insured on a primary and non-contributory basis. The plaintiffs say Premier worked on Spans 1 through 8 between August 18 and October 4, 2023, and that significant damage followed – to girders, splice plates, stiffeners and web supports…