I was paddling in a practice when one of our boats capsized due to fast water and an impediment in the waterway. In advance of practice, we looked at water height and speed without concern, but at the point we turned, the fast water pushed the boat into the impediment. While our steerer was literally one of the best around, the fast water and impediment made for a hairy maneuver. From this experience I learned to execute turns well clear of impediments to minimize risk of fast water