If you wanted to build a structure on a river bank-especially one that flows through unconsolidated sediments-you should build the structure ________ to maximize its lifetime.
A)along the cutbank
B)above the point bar
C)in a delta
D)next to a pool
E)downstream from the riffle

Question

Quizplus · Accepted Answer

Building the structure above the point bar would be the best option to maximize its lifetime. The point bar is composed of deposited sediments, making it a more stable area compared to the cutbank where erosion is actively taking place. Building in a delta could be risky as deltas are prone to flooding and channel shifting. Building next to a pool or downstream from a riffle may also result in erosion and sedimentation issues.

If You Wanted to Build a Structure on a River