❓ why
Why are some riverbanks curved and undercut on the outside of bends?
Quick Answer
The outside of a bend has faster water, which has more energy to erode the bank and carve a steep cutbank.
The Full Story
In a curving river, water does not move evenly across the channel. The faster current on the outside of the bend exerts more force on the bank, eroding soil and rock. On the inside, slower water drops sediment and builds a gentle point bar. This contrast makes one side steep and the other side shallow. Over time, the bend can migrate and reshape the floodplain.
Key Facts
1.Fast water erodes the outside of bends
2.Sediment accumulates on the inside
3.Point bars form on inner bends
YouTube Angle
Suggested video title for this topic:
"The reason one side of a river gets carved away"
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