Dredging & Marine Construction Insurance

Protecting marine contractors, crews, and floating equipment

Marine construction lives by a different rulebook. Dredging, docks and piers, seawalls and bulkheads, marine piling, waterfront construction, and underwater work all share one defining fact: the work happens on and over water, which pulls it into maritime jurisdiction. Crew injuries are governed by the Jones Act and the Longshore and Harbor Workers' Compensation Act (USL&H), not state workers' comp; the equipment is high-value and floating — dredges, barges, tugs, and crane barges; and the environmental exposure — dredge spoil, turbidity, and fuel spills — carries its own federal weight. A marine construction business needs coverage built for the maritime environment, not borrowed from land-based contractor insurance.

Properly structured coverage protects your crew, your floating equipment, and the waters you work in.

The Marine Contractor's Signature Exposure

The defining feature of marine construction is that it is maritime, and maritime law changes almost everything. Crew who work aboard vessels are seamen under the Jones Act and shoreside workers fall under USL&H — both outside the state workers'-comp system a land contractor relies on, and both carrying their own liability and benefit structure. The equipment is floating and expensive: a dredge, barge, tug, or crane barge can sink, suffer machinery failure, or be lost, and hull coverage, not inland property, answers for it. The environmental exposure is distinctive too — dredge spoil, turbidity plumes, and fuel or hydraulic spills fall under the Oil Pollution Act and the Clean Water Act — and the physical work brings sinking, allision, diving, and storm exposure that land programs never contemplate.

Key Risks in Dredging & Marine Construction

Marine construction contractors face exposure related to:

Crew injury governed by maritime law — the Jones Act for seamen and USL&H for harbor workers

Loss of or damage to floating equipment — dredges, barges, tugs, and crane barges

Environmental release — dredge spoil, turbidity, and fuel or hydraulic spills under the OPA and Clean Water Act

Damage to the structure being built or to adjacent docks, vessels, and property

Sinking, capsizing, and allision with fixed structures or other vessels

Diver and underwater exposure on piling and subsurface work

Storm, surge, and weather exposure to equipment and work in progress

Maritime crew liability and the loss of high-value floating equipment are the exposures that most define marine construction.

Core Coverages for Dredging & Marine Construction

A properly built marine construction program typically includes:

Protection & Indemnity / Marine General Liability — Covers third-party injury and property damage arising from vessel operations and marine work the land-based general-liability form excludes.

Hull & Machinery Coverage — Covers physical loss of and damage to dredges, barges, tugs, and crane barges — the trade's largest insured assets.

Jones Act & USL&H Coverage — Covers crew injury under maritime law for seamen and harbor workers outside the state workers'-comp system.

Marine Pollution / Environmental Coverage — Covers dredge-spoil releases, turbidity, and fuel and hydraulic spills under the Oil Pollution Act and Clean Water Act.

Marine Builders Risk — Covers the dock, pier, seawall, or structure under construction until it is completed and accepted.

Commercial Auto — Covers shoreside trucks, support vehicles, and the transit of equipment and materials.

Workers' Compensation — Provides legally required coverage for shore-based staff who fall outside maritime jurisdiction.

Umbrella / Bumbershoot Liability — Adds high excess limits across the marine and non-marine program given catastrophic severity.

What's Commonly Overlooked

Marine construction programs are most often weakened by:

Land-based workers' comp relied on where the Jones Act and USL&H actually apply, leaving crew claims uncovered

Floating equipment insured on inland property forms instead of hull coverage

No marine pollution coverage for dredge spoil, turbidity, and spills under the OPA

Marine builders risk missing on the structure under construction

Excess limits too thin for sinking, allision, and crew-injury severity

The gap that hurts most is a crew claim or equipment loss falling outside maritime-specific coverage the land program never provided.

Real-World Claim Examples

A deckhand is injured aboard a dredge and brings a Jones Act claim the contractor's workers' comp won't answer

A barge or crane barge sinks or suffers machinery failure, a major equipment loss

A dredge-spoil release or turbidity plume triggers a Clean Water Act and OPA cleanup and penalty

A vessel allides with a dock or another boat, damaging third-party property

A diver is injured during underwater piling or subsurface work

Any one of these — especially a crew claim under maritime law or the loss of a dredge or barge — can be catastrophic without maritime-specific coverage.

Regulatory & Safety Context

Marine construction is heavily regulated at the federal level. The US Army Corps of Engineers permits work in navigable waters and wetlands under Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act, and the EPA regulates dredge-spoil disposal and water quality under the Clean Water Act. The US Coast Guard governs vessel operation and safety, the Jones Act and USL&H define crew liability and benefits, and the Oil Pollution Act governs spill liability. State coastal and environmental agencies add their own permitting and turbidity rules, and OSHA's marine and diving standards apply to the work.

Why Proper Placement Matters

Marine construction is specialty business placed almost entirely through marine and inland-marine underwriters, largely on the excess and surplus (E&S) market rather than the admitted market. Underwriters weigh the equipment schedule and values, the waters worked and exposure to storm and surge, the share of dredging versus structural work, diving operations, environmental controls, and loss history, and they look closely at how Jones Act, USL&H, hull, and pollution coverages are coordinated. These lines do not fit standard land-contractor forms, so matching the program to maritime jurisdiction is the whole task. Placing the account with true marine markets, and presenting the equipment and environmental controls, is what keeps a catastrophic maritime claim covered.

Our Approach

At Cory Washington & Co., we insure marine contractors around the fact that defines the trade — the work is maritime, and the coverage has to be too. We place protection and indemnity, hull, Jones Act and USL&H, marine pollution, and marine builders risk through specialty marine markets, coordinate shoreside workers' comp and auto, and layer bumbershoot limits to the severity. We also insure land-based general contractors, and carry pollution liability and builders risk structured for the exposures involved.

On the water, maritime law writes the rules — we build coverage that is written to the same rules your work is.

All insurance descriptions on this website are provided by Cory Washington & Co. LLC strictly for general informational purposes. They are not intended to be, and should not be relied upon as, legal, financial, or insurance advice. The information presented is general in nature and does not guarantee the availability, terms, conditions, or scope of any insurance coverage. Actual coverage is determined solely by the specific policy language issued by the insurer and remains subject to underwriting approval. Nothing on this website creates or implies an agent-client relationship, binds coverage, or alters any existing policy. Cory Washington & Co. LLC expressly disclaims any liability for actions taken, or not taken, based on the content provided here. For advice regarding your particular situation, please consult directly with a licensed insurance professional at Cory Washington & Co. LLC or another qualified insurance professional, and always review your policy documents in full.

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