DCHP-1 Online
crib navigation Lumbering, Ottawa Valley, Obs. 
an artificial sluiceway down which logs or cribs may be directed to avoid rapids, falls, or other obstructions in a river.
See also: slide (def. 1a) timber slide
- 1854 In this simple manner . . . are formed the "cribs," one of which will carry all the provisions and many men in safety down any navigable rapid or crib slide.
- 1854 One of the disasters to which lumbermen are subjected in driving their timber, and one which induces them to go to great expense in forming a crib navigation where it can be obtained, is what is called a "jam."
- 1854 In this simple manner . . . are formed the "cribs," one of which will carry all the provisions and many men in safety down any navigable rapid or crib slide.