Multi-log vane deflectors (MLV) are typically used where this is a high stream bank. To build a multi-log vane, three logs are stacked together to form a pyramid. The logs are pinned together and secured to the stream bed. The butt end of the logs are placed in a long trench, angled into the stream bed. The log tips are angled upstream to help direct flows toward the center of the stream. Remember, water falls off objects at a 90 degree angle, by angling the end upstream, the water is pushed to the center of the channel.