Yacht Harbours in the United Kingdom

The authors describe the introduction and development of commercial yacht harbours in the United Kingdom. In the case of the south and west coasts where there is a high mean spring tidal range of up to 8 metres, this has resulted in the provision of enclosed basins, provided with either some form of gate or sill to retain the water. These are described, with typical examples. Recent developments in the design of sector gates are reviewed.