Water Transportation Workers
Career, Salary and Education Information
What They Do: Water transportation workers operate and maintain vessels that take cargo and people over water.
Work Environment: Water transportation workers usually work for long periods and can be exposed to all kinds of weather.
How to Become One: Education and training requirements vary with the type of job. There are no educational requirements for entry-level sailors and marine oilers, but other types of water transportation workers typically complete U.S. Coast Guard-approved training programs.
Salary: The median annual wage for water transportation workers is $62,760.
Job Outlook: Overall employment of water transportation workers is projected to show little or no change over the next ten years.
Related Careers: Compare the job duties, education, job growth, and pay of water transportation workers with similar occupations.
Following is everything you need to know about a career in water transportation with lots of details. As a first step, take a look at some of the following jobs, which are real jobs with real employers. You will be able to see the very real job career requirements for employers who are actively hiring. The link will open in a new tab so that you can come back to this page to continue reading about the career:
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What Water Transportation Workers Do[About this section] [To Top]
Water transportation workers operate and maintain vessels that take cargo and people over water. The vessels travel to and from foreign ports across the ocean and to domestic ports along the coasts, across the Great Lakes, and along the country's many inland waterways.
Duties of Water Transportation Workers
Water transportation workers typically do the following:
- Operate and maintain nonmilitary vessels
- Follow their vessel's strict chain of command
- Ensure the safety of all people and cargo on board
These workers, sometimes called merchant mariners, work on a variety of ships.
Some operate large deep-sea container ships to transport manufactured goods and refrigerated cargos around the world.
Others work on bulk carriers that move heavy commodities, such as coal or iron ore, across the oceans and over the Great Lakes.
Still others work on both large and small tankers that carry oil and other liquid products around the country and the world. Others work on supply ships that transport equipment and supplies to offshore oil and gas platforms.
Workers on tugboats help barges and other boats maneuver in small harbors and at sea.
Salvage vessels that offer emergency services also employ merchant mariners.
Cruise ships also employ water transportation workers, and some merchant mariners work on ferries to transport passengers along shorter distances.
A typical deep-sea merchant ship, large coastal ship, or Great Lakes merchant ship employs a captain and a chief engineer, along with three mates, three assistant engineers, and a number of sailors and marine oilers. Smaller vessels that operate in harbors or rivers may have a smaller crew. The specific complement of mariners is dependent on U.S. Coast Guard regulations.
Also, there are other workers on ships, such as cooks, electricians, and general maintenance and repair workers.
The following are examples of types of water transportation workers:
Captains, sometimes called masters, have overall command of a vessel. They have the final responsibility for the safety of the crew, cargo, and passengers. Captains typically do the following:
- Steer and operate vessels
- Direct crew members
- Ensure that proper safety procedures are followed
- Purchase equipment and supplies and arrange for any necessary maintenance and repair Oversee the loading and unloading of cargo or passengers
- Keep logs and other records that track the ship's movements and activities
- Interact with passengers on cruise ships
Mates, or deck officers, direct the operation of a vessel while the captain is off duty. Large ships have three officers, called first, second, and third mates. The first mate has the highest authority and takes command of the ship if the captain is incapacitated. Usually, the first mate is in charge of the cargo and/or passengers, the second mate is in charge of navigation, and the third mate is in charge of safety. On smaller vessels, there may be only one mate who handles all of the responsibilities. Deck officers typically do the following:
- Alternate watches with the captain and other officers
- Supervise and coordinate the activities of the deck crew
- Assist with docking the ship
- Monitor the ship's position, using charts and other navigational aides
- Determine the speed and direction of the vessel
- Inspect the cargo hold during loading, to ensure that the cargo is stowed according to specifications
- Make announcements to passengers when needed
Pilots guide ships in harbors, on rivers, and on other confined waterways. They are not part of a ship's crew but go aboard a ship to guide it through a particular waterway that they are familiar with. They work in places where a high degree of familiarity with local tides, currents, and hazards is needed. Some, called harbor pilots, work for ports and help many ships that come into the harbor during the day. When coming into a commercial port, a captain will often have to turn control of the vessel over to a pilot, who can safely guide it into the harbor. Pilots typically do the following:
- Board an unfamiliar ship from a small boat in the open water, often using a ladder
- Confer with a ship's captain about the vessel's destination and any special requirements it has
- Establish a positive working relationship with a vessel's captain and deck officers
- Receive mooring instructions from shore dispatchers
Sailors, or deckhands, operate and maintain the vessel and deck equipment. They make up the deck crew and keep all parts of a ship, other than areas related to the engine and motor, in good working order. New deckhands are called ordinary seamen and do the least complicated tasks. Experienced deckhands are called able seamen and usually make up most of a crew. Some large ships have a boatswain, who is the chief of the deck crew. Sailors typically do the following:
- Stand watch, looking for other vessels or obstructions in their ship's path and for navigational aids, such as buoys and lighthouses
- Steer the ship under the guidance of an officer and measure water depth in shallow water
- Do routine maintenance, such as painting the deck and chipping away rust
- Keep the inside of the ship clean
- Handle mooring lines when docking or departing
- Tie barges together when they are being towed
- Load and unload cargo
- Help passengers when needed
Ship engineers operate and maintain a vessel's propulsion system, which includes the engine, boilers, generators, pumps, and other machinery. Large vessels usually carry a chief engineer, who has command of the engine room and its crew, and a first, second, and third assistant engineer. The assistant engineer oversees the engine and related machinery when the chief engineer is off duty. Small ships might have only one engineer. Engineers typically do the following:
- Maintain a ships' mechanical and electrical equipment and systems
- Start the engine and regulate the vessel's speed, following the captain's orders
- Record information in an engineering log
- Keep an inventory of mechanical parts and supplies
- Do routine maintenance checks throughout the day
- Calculate refueling requirements
Marine oilers work in the engine room, helping the engineers keep the propulsion system in working order. They are the engine room equivalent of sailors. New oilers usually are called wipers, or pumpmen, on vessels handling liquid cargo. With experience, a wiper can become a Qualified Member of the Engine Department (QMED). Marine oilers typically do the following:
- Lubricate gears, shafts, bearings, and other parts of the engine or motor
- Read pressure and temperature gauges and record data
- Perform daily and periodic maintenance on engine room machinery
- Help engineers with repairs to machinery
- Connect hoses, operate pumps, and clean tanks
- Assist the deck crew with loading or unloading of cargo, if necessary
Motorboat operators run small, motor-driven boats that carry only a few passengers. They provide a variety of services, such as fishing charters, tours, and harbor patrols. Motorboat operators typically do the following:
- Check and change the oil and other fluids on their boat
- Pick up passengers and help them board the boat
- Act as a tour guide, if necessary
Work Environment for Water Transportation Workers[About this section] [To Top]
Water transportation workers hold about 75,400 jobs. Employment in the detailed occupations that make up water transportation workers is distributed as follows:
| Captains, mates, and pilots of water vessels | 36,800 |
| Sailors and marine oilers | 27,600 |
| Ship engineers | 7,900 |
| Motorboat operators | 3,100 |
The largest employers of water transportation workers are as follows:
| Support activities for water transportation | 25% |
| Inland water transportation | 22% |
| Deep sea, coastal, and great lakes water transportation | 12% |
| Scenic and sightseeing transportation, water | 8% |
| Federal government, excluding postal service | 7% |
Water transportation workers usually work for long periods and can be exposed to all kinds of weather. Many people decide that life at sea is not for them because of difficult conditions onboard ships and long periods away from home.
However, companies try to provide pleasant living conditions aboard their vessels. Most vessels are air-conditioned and include comfortable living quarters. Many also include entertainment systems with satellite TV and Internet connections, and meals may be provided.
Water Transportation Worker Schedules
Workers on deep-sea ships can spend months at a time away from home.
Workers on supply ships have shorter trips, usually lasting for a few hours or days.
Tugboats and barges travel along the coasts and on inland waterways, and crews are usually away for 2 to 3 weeks at a time.
Those who work on the Great Lakes have longer trips, around 2 months, but often do not work in the winter, when the lakes freeze.
Crews on all vessels often work for long periods, 7 days a week, while aboard.
Ferry workers and motorboat operators usually are away only for a few hours at a time and return home each night. Many ferry and motorboat operators service ships for vacation destinations and have seasonal schedules.
How to Become a Water Transportation Worker[About this section] [To Top]
Get the education you need: Find schools for Water Transportation Workers near you!
Education and training requirements vary by the type of job. There are no educational requirements for entry-level sailors and marine oilers, but other types of water transportation workers typically complete U.S. Coast Guard-approved training programs. Most water transportation jobs require the Transportation Worker Identification Credential (TWIC) from the Transportation Security Administration and a Merchant Mariner Credential (MMC), plus any related endorsements, from the U.S. Coast Guard.
Education for Water Transportation Workers
Sailors and marine oilers usually do not need formal education. Other types of water transportation workers often complete U.S. Coast Guard-approved training programs to help them obtain their required credentials.
Employers may prefer to hire workers who have earned a bachelor's degree from a merchant marine academy. The academy programs offer a bachelor's degree and a Merchant Mariner Credential (MMC) with an endorsement as a third mate or third assistant engineer. Graduates of these programs also can choose to receive a commission as an ensign in the U.S. Naval Reserve, Merchant Marine Reserve, or U.S. Coast Guard Reserve.
Water Transportation Worker Training
Ordinary seamen, wipers, and other entry-level mariners get on-the-job training for 6 months to a year. The length of training depends on the size and type of ship and waterway they work on. For example, workers on deep-sea vessels need more complex training than those whose ships travel on a river.
Licenses, Certifications, and Registrations for Water Transportation Workers
All mariners working on ships with U.S. flags must have a Transportation Worker Identification Credential (TWIC) from the Transportation Security Administration. This credential states that a person is a U.S. citizen or permanent resident and has passed a security screening. The TWIC must be renewed every 5 years.
Mariners who work on ships traveling on the open ocean require the Standards of Training, Certification, and Watchkeeping (STWC) endorsement. Regional U.S. Coast Guard offices provide this training, and it includes topics such as first aid and lifeboat safety. The STWC training must be completed every 5 years. Mariners who work on inland waterways and the Great Lakes are excluded from the STWC endorsement.
Most mariners also must have a Merchant Mariner Credential (MMC), which they can apply for at a U.S. Coast Guard regional examination center. Entry-level employees, such as ordinary seamen or wipers, do not have to pass a written exam. However, some have to pass physical, hearing, and vision tests, and all must undergo a drug screening, in order to get their MMC. They also have to take a class on shipboard safety. The MMC must also be renewed every 5 years. More information on MMCs and related endorsements is available from the U.S. Coast Guard National Maritime Center.
Pilots are licensed by the state in which they work. The U.S. Coast Guard licenses pilots on the Great Lakes. The requirements for these licenses vary, depending on where a pilot works.
Work Experience in a Related Occupation for Water Transportation Workers
Water transportation workers typically progress from lower level positions to higher level ones, making work experience an important requirement for many jobs. A ship engineer, for example, might need experience as a marine oiler, and mates may have previously worked as sailors. In some cases, workers gain the needed hands-on experience as part of their education program.
Advancement for Water Transportation Workers
After obtaining their MMC, crewmembers can apply for endorsements that may allow them to move into more advanced positions.
Wipers can get an endorsement to become a Qualified Member of the Engine Department (QMED) after 6 months of experience by passing a written test.
It takes 3 years of experience and the passing of a written test for an ordinary seaman to become an unlimited able seaman. However, several able seaman endorsements below the level of unlimited are available after 6 months to 1 year of experience, depending on the type of ship the seamen work on.
Able seamen can advance to become third mates after at least 3 years of experience in the deck department. This experience must be on a ship similar to the type they hope to serve on as an officer. They also must take several training courses and pass written and onboard exams to receive the third-mate's endorsement on their MMC. The difficulty of these requirements increases with the complexity and size of the vessel. Similarly, QMEDs can receive an endorsement as a third assistant engineer after 3 years of experience in the engine room and upon completion of a number of training and testing requirements. Experience and testing requirements increase with the size and complexity of the ship.
Officers who graduate from a maritime academy receive an MMC with an endorsement of a third mate or third assistant engineer, depending on the department in which they are trained.
To move up each step of the occupation ladder, from third mate/third assistant engineer, to second mate, to first mate, and then to captain or chief engineer, requires 365 days of experience at the previous level. A second mate or second assistant engineer who wants to move to first mate/first assistant engineer also must complete a 12-week training course and pass an exam.
Important Qualities for Water Transportation Workers
Customer-service skills. Many motorboat operators interact with passengers and must ensure that the passengers have a pleasant experience.
Hand-eye coordination. Officers and pilots who steer ships have to operate various controls while staying aware of their surroundings.
Hearing ability. Mariners must pass a hearing test to get an MMC.
Manual dexterity. Crewmembers need good balance to maneuver through tight spaces and on wet or uneven surfaces.
Mechanical skills. Members of the engine department keep complex machines working properly.
Physical strength. Sailors on freight ships load and unload cargo. While away at sea, most workers have to do some heavy lifting.
Visual ability. Mariners must pass a vision test to get an MMC.
Water Transportation Worker Salaries[About this section] [More salary/earnings info] [To Top]
The median annual wage for water transportation workers is $62,760. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $30,490, and the highest 10 percent earned more than $133,620.
Median annual wages for water transportation workers are as follows:
| Ship engineers | $82,410 |
| Captains, mates, and pilots of water vessels | $81,640 |
| Sailors and marine oilers | $46,720 |
| Motorboat operators | $38,670 |
The median annual wages for water transportation workers in the top industries in which they work are as follows:
| Support activities for water transportation | $77,680 |
| Deep sea, coastal, and great lakes water transportation | $77,220 |
| Inland water transportation | $75,560 |
| Federal government, excluding postal service | $52,920 |
| Scenic and sightseeing transportation, water | $43,540 |
Workers on deep-sea ships can spend months at a time away from home.
Workers on supply ships have shorter trips, usually lasting for a few hours to a month.
Tugboats and barges travel along the coasts and on inland waterways and crews are usually away for 2 to 3 weeks at a time.
Those who work on the Great Lakes have longer trips, around 2 months, but often do not work in the winter, when the lakes freeze.
Crews on all vessels often work long hours, 7 days a week.
Ferry workers and motorboat operators usually are away only for a few hours at a time and return home each night. Many ferry and motorboat operators service ships for vacation destinations and have seasonal schedules.
Job Outlook for Water Transportation Workers[About this section] [To Top]
Overall employment of water transportation workers is projected to show little or no change over the next ten years.
Despite limited employment growth, about 8,700 openings for water transportation workers are projected each year, on average, over the decade. Most of those openings are expected to result from the need to replace workers who transfer to different occupations or exit the labor force, such as to retire.
Employment of Water Transportation Workers
Fluctuations in the demand for bulk commodities, such as iron ore and grain, is a key factor influencing employment of water transportation workers. When demand for these commodities is high, the need for these workers increases; when demand slows, so does the need for workers.
| Occupational Title | Employment, 2021 | Projected Employment, 2031 | Change, 2021-31 | |
|---|---|---|---|---|
| Percent | Numeric | |||
| Water transportation workers | 75,400 | 75,900 | 1 | 500 |
| Sailors and marine oilers | 27,600 | 27,700 | 0 | 100 |
| Captains, mates, and pilots of water vessels | 36,800 | 37,200 | 1 | 400 |
| Motorboat operators | 3,100 | 3,100 | 0 | 0 |
| Ship engineers | 7,900 | 7,800 | -1 | -100 |
More Water Transportation Worker Information[About this section] [To Top]
For more information about water transportation workers, including employment and training information, visit
Maritime Administration , U.S. Department of Transportation
For more information about licensing requirements and other credentials, visit
National Maritime Center , U.S. Coast Guard
Transportation Security Administration , U.S. Department of Homeland Security
For information about jobs on barges, tugboats, and towboats traveling on inland and coastal waterways, visit
A portion of the information on this page is used by permission of the U.S. Department of Labor.