With recent market disclosures indicating that insured losses from the Baltimore Bridge collapse could exceed $2.8 billion, Hugo Chelton, Managing Director at Howden Re, has suggested that the heaviest impact is likely to fall on major reinsurers and the retrocession market, and that for some participants, the loss could represent a significant single-event hit relative to their capital base.
“When the container vessel Dali struck the Francis Scott Key Bridge in Baltimore in March 2024, early market reserves were placed at $1.5 billion. This figure became the working assumption for much of the marine and reinsurance market through 2024 and into 2025, shaping expectations at the 1.1.26 renewals,” Howden Re explained in a new report on the matter.
Since then, however, legal, salvage, and reconstruction costs have reportedly continued to evolve, and the ultimate scale of the loss has now come into clearer focus.
Howden Re cited recent market disclosures now pointing to a total insured loss exceeding $2.8 billion, reflecting a broader range of liabilities than initially anticipated.
“At this level, the Baltimore Bridge would rank as the largest single marine insurance loss ever recorded, surpassing the circa $1.6 billion insured loss from the Costa Concordia grounding in 2012. That previous incident had always been regarded as the sector’s previous benchmark event,” Howden explained.
According to the firm, the increase in losses has taken much of the market by surprise, with Chelton noting that both the scale and speed of the reassessment caught many off guard.
“The announcement came late on a Friday. By Monday morning, it had gained real momentum. A $1.3 billion deterioration would be a major loss event in its own right – let alone when layered on top of what was already one of the largest marine losses in the market,” Chelton said.
Howden’s report noted that the principal driver of the increase is the cost of replacing the bridge itself.
“The settlement framework between the State of Maryland and Chubb, who insured the bridge, accounts for approximately $2.5 billion of the overall loss, with pollution liabilities, wreck removal, and lost toll revenues contributing to the balance,” the firm added.
Howden continued, “Central to the settlement is the role of the International Group of P&I Clubs, the collective body representing the 13 mutual clubs that collectively insure these types of marine liability risks. Individual clubs mutualise large claims through the Group’s pooling mechanism and a significant excess‑of‑loss reinsurance programme, enabling them to respond to catastrophic losses of this scale.
“The size and importance of the International Group’s reinsurance placements mean that outcomes such as Baltimore inevitably have implications well beyond the primary market.
“The vast majority of the $2.8 billion will be absorbed by the reinsurance and retrocession markets. While some market participants initially anticipated that the full $3 billion limit of the International Group’s reinsurance tower could be called upon, statutory limitations on shipowner liability did not ultimately constrain the settlement. Most original carriers will have reinsurance in place, and deterioration flows to further layers.”
Chelton went on, “As the loss grows, it becomes increasingly concentrated. The deepest exposure lies with the large reinsurers and the retro market. For some participants, relative to their own capital base, this will represent a very significant single loss.”
Elsewhere in the report, Howden Re said that despite its scale, the Baltimore loss landed in a market that was already managing much larger aggregate risk. Marine, energy and terrorism portfolios reportedly sit alongside peak natural catastrophe exposures, particularly U.S. windstorm.
“The same carriers writing marine liability are also exposed to hurricanes. In that context, a truly severe event is a $100 billion nat cat. A $2.8 billion marine loss is material for the class, but it has to be viewed within the wider portfolio decisions these carriers are making,” Chelton explained.
Howden Re’s report noted that marine liability insurance and reinsurance would almost certainly see rate increases. It also highlighted that aviation leasing loss settlements across many of the same carriers compounded the pressure, alongside mounting losses arising from the Middle East conflict.
Chelton continued, “Taken together, the cumulative effect is meaningful. Something has to give. Marine liability rates will rise. Whether that translates into a broader market correction is less clear.”
The Howden Re report identified capital as the key counterweight. Across marine, energy and terror, capacity continued to exceed demand, with multiple sources estimating available limit at several times what was technically required for many large energy and infrastructure risks.
At the April 2026 renewals, the report noted pricing softened by as much as 15–20% in parts of the market, despite ongoing loss activity, as new entrants absorbed known exposures with little adjustment.
Loss-affected carriers are said to have reassessed their appetite, but fresh capital continued to enter the market, maintaining competitive pressure on pricing and keeping the balance of negotiating power firmly with buyers.
“The market is navigating a complex set of signals. Losses of this scale do shift thinking over time, and we are seeing the early conditions for that. The question for clients is how to position ahead of that turn, rather than react to it,” Chelton concluded.
