A half tide dock is a partially tidal dock. Typically the dock is entered at high tide. As the tide ebbs a sill or weir prevents the level dropping below a certain point, meaning that the ships in the dock remain afloat. Half tide docks are particularly useful in areas with a large tidal range.

 
This article related to water transport is a stub. You can help by expanding it.

Retrieved from “http://en.wikipedia.org/wiki/Half_tide_dock