  a dry dock (sometimes dry-dock or drydock) is a narrow basin or vessel that can be flooded to allow a load to be floated in, then drained to allow that load to come to rest on a dry platform. dry docks are used for the construction, maintenance, and repair of ships, boats, and other water craft. ==history== ===china=== the use of dry docks in china goes at least as far back the 10th century a.d. in 1088, song dynasty scientist and statesman shen kuo (1031â1095) wrote in his dream pool essays:  ===renaissance europe===  the first european and oldest surviving dry dock still in use was commissioned by henry vii of england at hmnb portsmouth in 1495 (see tudor navy). this dry doc
Coastal_construction Drydocks