The Ganaraska Fishway is a pool and weir style consisting of a concrete channel ninety feet long and five feet wide. Baffles divide the area into nine pools. The fish – trout and salmon – negotiate each jump or level at their leisure until they have cleared the dam; approximately twelve feet altogether.

The fishway is used practically year-round although the most popular times are the spring and fall. Rainbow trout spawn in the spring. The brown trout and pacific salmon species (coho and chinook) however spawn in the fall.