'' Erg '' was originally a steam tug called '' Sambro '' and was built by the Halifax Shipyard in 1915 . She was one of the earliest steel vessels to be built in Halifax . '' Sambro '' was 55 feet long and almost 15 feet wide , with a depth of 7 feet and her maximum tonnage was 28 . The tug was originally sunk during the Halifax Explosion of 1917 . In 1927 , '' Sambro '' was raised out of the harbour and was converted from steam to diesel , being given a 4 horsepower engine . With this change , the tug was given a new name and a new purpose . The vessel was renamed '' Erg '' and was used as a transport tug , ferrying workers and their equipment from the shipyard to vessels under repair
Halifax Explosion
Halifax Explosion
Erg (tug)