Blackwoods Screw Dock: A Maritime Relic

Blackwoods Screw Dock, nestled in the heart of Bridgetown, Barbados, is a remarkable testament to maritime history and Victorian engineering. Constructed between 1889 and 1893 by John Blackwood, it is the last remaining screw-lifting dock of its kind in the world. This unique dry dock once served as a bustling hub for ship repairs and maintenance, capable of accommodating vessels up to 1,200 gross registered tons. The dock's design was innovative for its time, employing a system of screw jacks to lift ships completely out of the water for efficient repairs. The facility measures 240 feet long by 46 feet wide. The use of power screws for lifting and trussed timber beams for the transverse girders were unique elements of the design, as was the spacing of the screw jacks. Thirty-one pairs were used spaced at 7'0” (213,36 cm) centers. This kept down the loading on individual screws and beams and is close enough to obviate the need for intermediate grillages. For nearly a century, Blackwoods Screw Dock played a vital role in the region's maritime activities. However, by the late 20th century, the dock's fortunes declined, and it ceased operations in the 1980s. Today, the site offers visitors a glimpse into the past, with informative plaques detailing its construction, operation, and significance. Although the elements have taken their toll, the rusting machinery and crumbling infrastructure evoke a sense of history. There are ongoing efforts to restore and preserve this unique landmark as part of a broader tourism development project.