Marine Salvage and Underwater Recovery

When a barge goes down in a shipping lane, the clock starts before the hull touches bottom. This page is for the people who have to deal with it: DOT bridge engineers, port captains, marina managers, waterfront facility owners, and vessel operators. It covers marine salvage, boat salvage, sunken boat recovery, underwater search and recovery, and wreck removal. You will learn how a typical salvage job is scoped, how contractors structure their pricing, and which regulations govern the work. The emphasis is on the operational sequence: assessing risk, stabilizing the wreck, removing it, and restoring the bottom. Salvage is not one single trade. It demands commercial divers, riggers, naval architecture, and often marine construction equipment. It is also a heavily regulated business, and a buyer who understands the framework gets better bids and fewer surprises. If you need a contractor, the marine salvage and recovery operators page collects vetted firms. If you have an incident, read the first 48 hours guidance. And if you are negotiating with an insurer, know your wreck removal clause before you sign.

What Marine Salvage and Underwater Recovery Covers

Marine salvage is broader than raising a sunken boat. The work includes refloating grounded vessels, removing wrecks, recovering cargo, and searching for lost equipment or underwater obstructions. Underwater search and recovery can be a bridge girder that dropped during installation, a harbor fender that failed, or a boat that rests under thirty feet of water. Each job starts with a dive survey to establish the attitude of the wreck, the structure of the bottom, and the risks to nearby facilities. The contractor then prepares a lift plan. That plan may involve divers rigging straps or pads, submersible lift bags, a crane barge, or a combination of methods. The coordination with a dive team is governed by OSHA 29 CFR 1910 Subpart T and ADCI consensus standards. For U.S. Army Corps of Engineers projects, USACE EM 385-1-1 adds another layer. A buyer should expect the operator to produce a method statement and a hazard analysis before any diver hits the water.

How Salvage Pricing Is Structured

Most salvage contractors price the job either as a day rate or a fixed lump sum. Day rate suits a live salvage where conditions are uncertain and the plan changes as the work evolves. A fixed lump sum makes sense for a well-defined removal, such as pulling a known pleasure boat off a known bottom. Either way, the final number depends on depth, current, visibility, and bottom composition. A boat in forty feet of silt in a river is easier to rig than the same boat at one hundred feet on rock in an open harbor. The contractor also has to move equipment to the site, and mobilization can cost more than the diving. Owners should ask about rates for stand-by time, weather days, and additional dive teams if the job runs long. Some contracts include an environmental services line for fuel removal and hazardous materials, which is a separate permit. A buy-down is an incentive to stay productive. It is simply a fee paid if the wreck is not recovered on time. Read the contract for that clause before signing.

The First 48 Hours After a Sinking

However urgent it feels, do not let a recreational diver or a well-intentioned local rigger hook onto the wreck. The right first move is to secure the scene, call the Coast Guard if fuel is leaking, and contact a commercial dive contractor. The first 48 hours matter because currents and tides can shift a fragile hull, bury it deeper, or break it apart. The contractor will also want to inspect the hull for fuel and oil before any lift. Once a wreck is moved, the bottom becomes goo, and refloating a partially buried hull is far more expensive than recovering it before that happens. The practical steps are covered in the first 48 hours guide. That article walks through the call sequence, the initial survey, and the decisions that drive cost.

Legal, Insurance, and Wreck Removal Obligations

The legal difference between salvage and towing can cost thousands. Marine salvage law treats a salvage reward based on risk and value. A tow, on the other hand, is a straightforward contract. If your boat is disabled and you ask a boat to pull it to port, that is towing. If that same boat is sinking and a captain takes it in tow without your say-so, it may be salvage. That distinction matters for insurer liability. Most hull policies include a wreck removal clause. That clause, your insurer's wreck removal clause, defines who pays when a wreck must be moved out of a channel. Port authorities and the Coast Guard can order the removal of a hazard, and they can bill the owner if the owner does not act. The takeaway is that a salvage operator is not a towing company, and an insurance policy is not a blank check. Read the salvage-vs-towing article and your policy before the boat goes down, not after.

Standards and Qualifications That Matter

Diving on a wreck is commercial diving, not an extension of a weekend scuba hobby. A contractor's dive team must be trained and equipped under OSHA 29 CFR 1910 Subpart T, and the supervision should follow ADCI consensus standards. U.S. Army Corps of Engineers work adds USACE EM 385-1-1. For harbor and bridge structures, in-water inspection may need to comply with 23 CFR 650.311 (NBIS) and be led by an FHWA-NHI qualified team leader. As a buyer, ask for documentation of these standards before signing. And do not let a diver work alone around intakes, gates, or valves. Differential pressure, or delta P, is lethal and requires positive isolation of the system. The safest salvage firms build that into the method statement.

Salvage questions

How long does a typical salvage operation take?

It depends on survey findings, weather, site access, and the selected method. A small boat in sheltered water might be refloated in one shift, while a deep or partially buried wreck can take weeks. The contractor should give you a timeline after the initial dive survey.

Who pays for a salvage or wreck removal?

Usually the vessel owner or their hull insurer. If the wreck is a navigational hazard and the owner fails to remove it, the port authority or Coast Guard can contract for removal and seek recovery from the owner. Some municipal agreements assign responsibility differently, so check the permit language.

Can a recreational scuba diver recover my boat?

No. Recreational certification is not a commercial diving qualification. Commercial salvage divers must meet OSHA and ADCI requirements, which cover supervised decompression, dive and surface crew, and equipment standards. A bottom job with an untrained diver creates liability and endangers lives.

What is the difference between salvage and wreck removal?

Salvage rewards the party who saves property at risk. Wreck removal is the legal obligation to clear a hazard from a waterway. A contractor may perform both in one operation, but the insurance and legal treatment changes the contract structure. See the salvage-vs-towing article for detail.