Mature Bends Here

Despite their high curvature, large mature bends frequently exhibit the lowest migration rates in a river system.

In a typical meander, sediment deposits on the inner convex bank (point bar). In mature bends, a "phase lag" between flow and curvature can lead to the formation of counter point bars on the concave bank. mature bends

). Many mature bends in nature retain a ratio of , which is considered the most hydraulically efficient shape. Despite their high curvature, large mature bends frequently

Researchers use the BTI to predict these deposition patterns. In mature, large-scale bends, expansion is minimal because the phase lag is small relative to the total arc length. 3. Stability and Migration Rates Despite their high curvature