1708 G. Vaux tr. J. C. Sturm II. iii. ix.131 The Tenia above the Freeze, and its Side Channel.
1838 1 97/2 The sides [of the roadway], where the water is received into the gutters, or side channels.
1999 J. Raban i. 28 Eells's parishioners were the Skokomish Indians on the southern crook of the Hood Canal, a side channel to Puget Sound.