Because the inside of the meander has deposited rocks and rubble building it up and making the water shallower whereas the outside of ther meander is being eroded by fast moving water.
on the outside of the bend
The river cliff is the outside of a meander in a river. This is due to erosion from fast flowing water. Deposition occurs on the inside and the inside bend is called the SLIP-OFF SLOPE
River bends are called 'esses' or 'meanders'
Bends in a river are called meanders
Bends in a river are called meanders.
The main erosion at a bend in a river or meandering channel is known as lateral erosion. This occurs on the outside of the curve where the water flow is fastest, leading to the wearing away of the outer bank through the process of hydraulic action and abrasion.
The speed of water at a river bend flows much faster and deeper on the outside of the bend. On the inside of the bend the velocity is much slower and shallower.
A bend in a river is called a meander -source- Secondary Education
As the river flows around the outside of the bend, it accelerates just like when a car goes around a bend. The water, like a car, is pulled toward the outside of the bend through centripetal force (which is why road bends are often banked). The same thing happens to the water surface. It actually rises around the outside of the bend. This higher elevation of the water surface means that the water on the outside of the bend is slightly deeper than the inside. Since water always tries to seek a level surface, the water on the outside of the bend actually flows downward, along the bottom and comes back up on the inside of the bend. This secondary current pushes material from the outside of the bend back up on the inside of the bend - and that's where sand bars come from. So the combination of accelerated flow around the outside combined with the secondary current moving downward erodes the outside of the river bend.
It is called South Bend because it is at the 'south bend' of the st. Joe River.
a meander
Lateral erosion, also known as undercutting, occurs on the outside bend of a river. This is where the force of the water is strongest, causing the river to erode the outer bank through hydraulic action and abrasion.