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A crane vessel, crane ship, crane barge, or floating crane is a ship with a crane specialized in lifting heavy loads, typically exceeding 1,500 t (1,476 long tons; 1,653 short tons) for modern ships. The largest crane vessels are used for offshore construction .
The floating barge-crane, originally named Marine Boss, was built for Murphy Pacific Marine.The barge was assembled by Zidell Explorations from scrapped ship steel in Oregon [2] in 1966 and fitted in San Francisco with a heavy 500-ton revolving crane made by Clyde Iron Works [3] to perform the heavy girder and deck-section lifts for construction of the 1967 San Mateo-Hayward Bridge.
Designed to work in tandem with a 90 ft (27 m) work barge USCGC Gasconade is a Gasconade -class 75-foot (23 m) river buoy tender which was built in 1964 at St. Louis, Missouri where she was initially homeported .
A $1.5 million grant from the National Oceanic and Atmospheric Administration will cover the cost of extracting the 114-foot crane-topped barge from the spot where it sunk in a fall nor'easter ...
On March 12, 2016, The Specialist, one of three tugboats pulling a crane from Albany to New Jersey, struck a construction barge under the Tappan Zee Bridge and sunk within minutes, sending its ...
The smaller cranes start at around 50 tons [which?] in lifting capacity, with the largest being able to lift 20,000 tons. The bigger sheerlegs usually have their own propulsion system and have a large accommodation facility on board, while smaller units are floating pontoons that need to be towed to their workplace by tugboats .
The crane was being transported on a barge passing through the East River. Despite the impact, the bridge hasn't sustained any structural damage. The footage shows a barge passing under the bridge ...
The crane barge was built by Kelso Marine in Galveston, Texas [6] [7] for Sun Shipbuilding in 1972 at a cost of nearly $5 million. [2] [8] At the time, it was the largest crane ship in the world. [8] The crane was initially able to lift 800 short tons (710 long tons; 730 t), and so was named Sun 800. [9]
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