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Bridge opened in 1954 carrying Bridge Street over the Junction Canal linking the North and South harbours (NK14NW0029), replacing an 1850 swing bridge. . The 'Queenie Brig' is a bascule moveable bridge, with a counterweight that continuously balances a span throughout its upward swing. It has a Scherzer rolling lift (a patented refinement of the bascule bridge by the Americal engineer William Donald Scherzer) which raises the span on a track resembling a rocking chair base.The steelwork of the bridge was fabricated by Sir William Arrol Co Ltd at their Dalmarnock Iron Works in Glasgow. The bridge was refurbished and upgraded in 1998. A standing building survey was carried out in 2015 prior to its removal as part of harbour redevelopment works. The bridge comprises a 16m by 8m wide steel framed vehicle deck, with pedestrian walkways to either side. The bridge deck is counterbalanced by a ballast box connected to the bridge by two large curved girders either side of the deck. The operating machinery is houses in two steel cabins 4.5m above the ground on either side of the east end of the bridge, and connected by a gantry walkway.
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Historic Environment Records (HER)