The insured loss from the March 2024 allision between the container vessel Dali and Baltimore's Francis Scott Key Bridge has climbed past $2.8 billion, according to recent market disclosures, an 87% jump from the $1.5 billion working assumption that shaped reinsurance pricing into the 1.1.26 renewals.
Howden Re says the revised figure now consumes close to 93% of the International Group of P&I Clubs' $3 billion GXL reinsurance tower.
At that level, the incident surpasses the roughly $1.6 billion insured loss from the 2012 Costa Concordia grounding to stand as the largest single marine insurance loss on record. The scale had been signaled early, with Lloyd's of London chairman Bruce Carnegie-Brown warning weeks after the March 26, 2024 allision that the event could become the costliest marine claim in history.
Initial estimates from Barclays, Morningstar DBRS, Fitch and the Insurance Information Institute spanned $1 billion to $4 billion.
Hugo Chelton, managing director at Howden Re, said the speed of the latest revision caught the market off guard. "The announcement came late on a Friday," Chelton said, adding that by Monday morning the development had gained real momentum.
He characterized the $1.3 billion deterioration as a major loss event on its own, particularly when stacked onto what already ranked among the largest marine losses on the books. Reinsurers wrote 2026 coverage on a working figure that has since proven roughly 46% short of the disclosed reality.
The main factor is the cost of replacing the bridge itself. A settlement framework between the State of Maryland and Chubb, the bridge's insurer, accounts for roughly $2.5 billion of the total, with pollution liabilities, wreck removal and lost toll revenues making up the remainder.
Previously reported milestones include ACE American, a Chubb subsidiary, paying Maryland its full $350 million bridge policy limit in May 2024, and Grace Ocean and Synergy Marine settling a $102 million federal cleanup claim with the U.S. Department of Justice in October 2024.
The International Group, which represents 13 mutual clubs covering marine liability risks, sits at the center of the settlement. Its excess-of-loss program is already repricing. Fully cellular container shipowners face a 15% increase in the reinsurance rate for 2026-27, rising to $1.0237 per gross ton. The Group also expanded Layer 3 of the GXL to $850 million excess of $1.5 billion.
Most of the $2.8 billion will flow to reinsurance and retrocession markets in Baltimore's wake. "As the loss grows, it becomes increasingly concentrated," Chelton said, noting the deepest exposure sits with large reinsurers and the retro market.
Marine liability rates are expected to rise, with aviation leasing settlements and Middle East conflict losses adding pressure. Even so, April 2026 renewals saw pricing in parts of the market soften by 15% to 20% as new capital absorbed known exposures, keeping leverage with buyers.
