the River Mersey. The dock was built as part of an expansion of the Cammell Laird shipyard at the turn of the 20th century by enclosing what was once Tranmere Pool. Following the closure of the original Cammell Laird shipyard in 1993, the dock and the four remaining dry docks at the site are owned by the MDHC. All were subsequently leased, firstly to the A&P Group and then to Northwestern Shiprepairers & Shipbuilders, which officially renamed itself Cammell Laird Shiprepairers and Shipbuilders Ltd on 17 November 2008. See also Port of Liverpool Associated British Ports Peninsular and Oriental group PD Ports References External links Peel Ports: Port of Liverpool Mersey docks Transport in Liverpool Companies based in Liverpool Transport operators of England Companies formerly listed on the London Stock Exchange Port operating companies Peel Ports 1709 establishments in England Organizations established in 1709 British companies established in 1709 Transport companies established in 1709