DCHP-1 Online
ice anchorage 
an engineering technique for slowing down the flow of a river during break-up, involving the dredging of holes into the river bottom so that the ice will build up, forming a barrier.
See also: ice-trap
- 1963 Dredges dig out ice anchorages in the Bow River by Princes Island. The idea is to form an ice bridge, prevent pile-ups, flooding.
- 1963 Acting City Engineer Charles Howarth describes the provincial project as an ice anchorage system to cut down the danger of spring floods.
- 1963 Dredges dig out ice anchorages in the Bow River by Princes Island. The idea is to form an ice bridge, prevent pile-ups, flooding.