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Reported fleet size
—
No published figure available
Container capacity
—
Not a ranked container line
Gross tonnage on record
3,954
Summed over 2 ships reporting tonnage
In brief
The Woods Hole, Martha's Vineyard and Nantucket Steamship Authority, doing business as The Steamship Authority (SSA), is the statutory regulatory body for all ferry operations between mainland Massachusetts and the islands of Martha's Vineyard and Nantucket, as well an operator of ferry services between the mainland and the islands. It is the only ferry operator to carry automobiles to and from the islands. The Authority also operates several freight vessels, thus serving as the main link for shipping any commercial goods that are not transported using the airports on Nantucket or Martha's Vineyard.
Corporate profile
Fleet on record
Composition of the 2 vessels this registry attributes to The Woods Hole, Martha's Vineyard and Nantucket Steamship Authority. Bars are true proportions of that set, not of the company's full fleet.
Delivery history
Ships delivered in each of the last 10 years, counted from the recorded build year of vessels attributed to this company, with the running total of its fleet on record. No deliveries fall inside this window — this company’s vessels on record were all built earlier.
| Year | Deliveries | Ships delivered | Gross tonnage added | Fleet on record |
|---|---|---|---|---|
| 2017 | 0 | — | 2 | |
| 2018 | 0 | — | 2 | |
| 2019 | 0 | — | 2 | |
| 2020 | 0 | — | 2 | |
| 2021 | 0 | — | 2 | |
| 2022 | 0 | — | 2 | |
| 2023 | 0 | — | 2 | |
| 2024 | 0 | — | 2 | |
| 2025 | 0 | — | 2 | |
| 2026 | 0 | — | 2 |
Vessel records
| Ship | IMO | Type | Flag | Built | Gross tonnage | Deadweight | Length | Builder |
|---|---|---|---|---|---|---|---|---|
| 9472426 | Offshore supply | United States | 2008 | 2,091 | — | 73.2 m | Atlantic Marine | |
| 9472440 | Offshore supply | United States | 2009 | 1,863 | — | 73.2 m | Atlantic Marine |
Ships in registry counts individual vessel records attributed to the company here. Reported fleet is the company’s published total. They measure different things and are shown separately on purpose.
In context
Counts over companies and vessels actually held in this directory — not over the world fleet, which is larger. Nothing here is estimated.
With 2 vessels attributed to it here, The Woods Hole, Martha's Vineyard and Nantucket Steamship Authority is the 341st largest of the 965 operators in this directory that hold at least one ship on record, against a median of 2 across that group. That is a count of individually identified hulls, not the company’s published fleet size — the two are different measurements and both are shown above where available.
United States is the country of registration for 144 commercial operators in this directory, among which The Woods Hole, Martha's Vineyard and Nantucket Steamship Authority ranks 33rd by ships on record. Between them those companies hold 435 vessels here. 1 of them carry a published container-capacity ranking. See every operator registered in United States.
Same country

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Provenance
Company and vessel recordsWikidata item Q7775752, released under CC0. Counted figures on this page are counts over those records.
Written summaryQuoted from Steamship Authority on English Wikipedia, reused under CC BY-SA 4.0.
Published fleet figuresNo published fleet figure is available for this company.