The Crete Fleet

The Crete FleetThe Crete FleetThe Crete Fleet
  • Home
  • About Us
  • Blog
  • WWI UK
  • WWII UK
  • WWI US
  • WWII US
  • Concrete Ship Videos
  • WWI Photos
  • WWII Photos
  • WWI U.S. Riverboats
  • Everything Else
  • Connect with Us
  • Copyright
  • Privacy Policy
  • More
    • Home
    • About Us
    • Blog
    • WWI UK
    • WWII UK
    • WWI US
    • WWII US
    • Concrete Ship Videos
    • WWI Photos
    • WWII Photos
    • WWI U.S. Riverboats
    • Everything Else
    • Connect with Us
    • Copyright
    • Privacy Policy

The Crete Fleet

The Crete FleetThe Crete FleetThe Crete Fleet
  • Home
  • About Us
  • Blog
  • WWI UK
  • WWII UK
  • WWI US
  • WWII US
  • Concrete Ship Videos
  • WWI Photos
  • WWII Photos
  • WWI U.S. Riverboats
  • Everything Else
  • Connect with Us
  • Copyright
  • Privacy Policy

Welcome to 'The Crete Fleet'

Welcome to 'The Crete Fleet'Welcome to 'The Crete Fleet'Welcome to 'The Crete Fleet'

An on-line encyclopedia of the Concrete Ships of WWI & World War II and the Mulberry Harbours



Welcome to 'The Crete Fleet'

Welcome to 'The Crete Fleet'Welcome to 'The Crete Fleet'Welcome to 'The Crete Fleet'

An on-line encyclopedia of the Concrete Ships of WWI & World War II and the Mulberry Harbours



We invite you to our Concrete Ship Blog - it's an ever expanding encyclopedia !

Read our Blogs

Index

Index / Page Links

There's a lot of information on this website, and so this Index aims to get you to where you want to get to as quickly and simply as possible ! It is in the footer and here...Or spend some time exploring the 'World of Concrete Ships'. The most detail is to be found in our Blogs...



Index

About Us

Just so you know a bit about the authors and why we are interested in the subject of Concrete Ships, we have an About Us section. We also provide links in the About Us section to articles published by the authors

Read all about us & our Published Articles

British World War I Era Concrete Ships

For me, this is where it all started, with 'Cretegaff', the last surviving floating example of a World War I British built concrete ship. For Erlend, it was 'Hans Martin' at Porsgrund, Norway, the oldest surviving floating concrete ship in the World. The section covers 'Cretegaff', 'Creteboom', 'Cretehawser', 'Cretetree', 'Cretefield & The Warrenpoint Barges'', 'The Wrecks', 'A.C.W. 10 & A.C.W. 11' & 'Violette & Molliette', complete with a photo gallery

Find out about the British WWI 'Crete Fleet'

British World War II Ferro-Concrete Barges

495 Ferro-Concrete Barges (mainly of 84 feet long) were built during World War II to assist the war effort. 294 were to carry cargo in an open barge and 201 'Petrol Barges' were built with a view to carrying fuel to support the D-Day landings. many, many survive today. 


Sadly, much that is written about them is no more than Urban Myth, particularly the 16 on the Thames at Rainham Marshes. We aim to fix that, replace fiction with fact and bust a few myths along the way !

find out about the british wwII FCBs

World War I U.S. Concrete Ships

We firstly researched, in great depth, the U.S.S.B. 'Concrete Ship Building' programme for the 'Emergency Fleet' and chronicled the Life & Times of the 12 concrete Emergency Fleet ships that were completed and launched in the U.S. between 1918 and 1920. You can visit the write up for each of the 12 ships from the button below. We went much further than just the USSB EFC ships - we covered the concrete oil barges, tankers, riverboats, Navy barges, car floats & water tankers. You'll find those in our Blog series.

Read about the US World War I concrete Ships

World War II U.S. Concrete Ships

World War II saw a return to the same conditions that had motivated concrete shipbuilding in World War I - growing demand for ships, loss of ships due to the German U-boat campaign and scarcity of steel. The Maritime Commission contracted for quite a number of large, ocean going ships and barges, including 24 self-propelled concrete Dry Cargo Steamers that were built by McCloskey at Hooker's Point, Tampa, Florida. You'll find an overview on the page, and the full detail in a series of Blogs

Read about the US World War II concrete Ships

Blogs

To keep the sections of our website 'manageable', most of our new content is now presented in a categorised Blog format.  Over time, we have expanded from our start point of concrete ships to cover other interesting topics such as Mulberry Harbours and even steel ships that were built to deliver fuel to support the Normandy invasion.


Over time, our Blogs aim to cover the entire world of concrete ships and Mulberry harbour components ever built, anywhere, always with the same theme of Why ? Where ? How ? When ? What ? and Where are they now ?

Read our blogs

WWI U.S. Concrete Riverboats

This is a new section that we are only just beginning to build out. Right now we have focused on the last surviving 150 foot Riverboat, 'Colonel Frederick G Hodgson' now known as 'The Boat'

Read about U.S. Riverboats

WWI Photo Gallery

Lots of lovely photos of World War I concrete ships !

View the gallery

WWII Photo Gallery

Lots of lovely photos of World War II concrete ships !

View the gallery

Concrete Ship Videos

A collection of videos that show concrete ships, including Vintage newsreels and modern day 'explorers' videos. We limit the videos displayed to one that do not spread Urban Myths with is what happens when they go to Wikipedia for their history !

Watch the Videos

Connect with Us

There are lots of ways that you can keep in touch with our research and the things we publish. You can subscribe to this website or just follow us on Facebook or Instagram or Twitter

Follow us

'The Crete Fleet' - British World War I era Concrete Ships

This is the story of 'The Life & Times of The Crete Fleet'

 In 1917, during some of the darkest days of World War I, The British Government commissioned the construction of 154 concrete ships - 24 powerful Steam Tugs and 130 barges, each of 1000 tons deadweight. 


World War I thankfully ended before the programme was complete, but still, 64 'Crete Ships' were launched by the end of 1920. 


The last surviving floating 'Crete Ship', 'Cretegaff',  lies in Carlingford Marina, where I live in the Republic of Ireland. 


When I first saw her, I had never heard of a concrete ship ! Why build a ship in concrete ? What is she doing here ? How did she get here ? How does she float ? 


 I became intrigued - I had to find out all about them. Little did I know that she had sisters and cousins  - a family of concrete ships. I christened them 'The Crete Fleet' (because their names start with 'Crete' !) and set about researching them all. I also discovered that 9 other concrete ships of different design were also built in the UK in the same period. 


This is the story of their Life & Times

Learn more

FCBs - British World War II Ferro-Concrete Barges

WWII FCBs - Now launched !

When I had finished researching British World War I concrete ships, I discovered that in World War II, 495 concrete barges were built in the U.K. 


As soon as I started my research, I discovered that much that is written about them is absolute nonsense - fiction, fantasy and Urban Myth - propagated, in particular, by Wikipedia. 


Following a further year of research, I shared what I had discovered so as to provide an accurate history and to dispel the urban myths that surround these feats of British wartime concrete engineering !


Just to put the record straight, right from the start, the closest the 16 Petrol Barges at Rainham Marshes got to France, was when someone threw a baguette at one in 1998. 


I'll also dispel the myth that the World War II FCBs had anything whatsoever to do with the Mulberry Harbours. 


Jump to WWII FCBs

World War I Ferro-Concrete Ships of the USA

Born in the USA

Whilst the U.S.A. did not enter World War I until April 1917, U.S. merchant ships were being sunk by German U-Boats well before then as they crossed the Atlantic with supplies. 


By the end of the War, around 5,000 Allied merchant ships and around 15,000,000 tons of merchant shipping had been sunk by the Germans. The Allies need to build more ships, but there was a scarcity of steel. On 7th September 1916, The United States Shipping Board was created and its job was to manage merchant shipping in the U.S. and find ways to build more ships. They found concrete..


The U.S.S.B. looked to Europe, and in particular to Norwegian Nicolay Fougner, who had built 'Namsenfjord', the World's first seagoing concrete ship. 


The outcome, a programme to build 43 concrete ships, cargo ships and tankers, of a scale previously never attempted. 12 were completed. 


We have covered the Life & Times of all 12 WWI era U.S. Concrete Ships of the Emergency Fleet l, with background detail and in-depth Blogs about each ship. 


Progressively, we are also Blogging about the many other concrete vessels built in the U.S.A. in the World War I era

jump to u.s.wwi concrete ships

Ten Floating Concrete Centenarians

Blog Series

Blog Series : Ten Floating Concrete Centenarians

Amazingly, there are surviving concrete World War I era ships around the World that are still afloat, more than a 100 years after they were launched. Not only that, many are in full use today !


They are the survivors. And they are dotted around the World..


To find out about their rich and interesting lives, read our Blog series :-


 'Ten Floating Concrete Centenarians'

Read our Blog series

Ten World War I Concrete Ship Wrecks

Blog Series

Blog Series : Ten World War I Concrete Ship Wrecks

We identified that over 600 concrete vessels were built during the World War I era. 


Most are long gone and forgotten, but some remain as wrecks, to remind us of anera over a century ago when ocean going ships were built of concrete !


This Blog series is our memorial to those concrete ships that, for now at least, are still with us to remind us of human ingenuity in the face of adversity

Read our Blog Series

The U.S. World War II concrete ships

read our blogs

New Blogs published every week. Follow us on Facebook

New Blogs published every week. Follow us on Facebook

New Blogs published every week. Follow us on Facebook

New Blogs published every week. Follow us on Facebook

New Blogs published every week. Follow us on Facebook

New Blogs published every week. Follow us on Facebook

Our Blogs

Copyright © 2025 The Crete Fleet - All Rights Reserved.

Powered by

  • Concrete Ship Videos
  • Index

This website uses cookies.

We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.

Accept