Our first rock sill installation was in Trout Creek in 1995. The intent of these structures is very similar to the digger logs, but can be used in much larger watercourses, narrowing and deepening over widened streams and rivers. Once the rock sills have done their job, and nature has taken over, they tend to blend into the natural surroundings and disappear from view. We now have rock sills on Smith's Creek and the Millstream River as well.
Benefits of Rock Sills:
1. Increased fish habitat availability.
2. Increased stream channel stability.
3. Improved substrate and water conditions for fish including increased dissolved oxygen and lower water temperatures.
4. Reduces the risk of the formation of ice jams.
Former Project Manager Brent Stanley checks over a rock sill on Trout Creek in 2007