Civil Engineering Professional Engineer Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What type of channel modification can help with water flow control?

Straightening natural watercourses

Straightening natural watercourses is a modification that can significantly enhance water flow control. When a river or stream is straightened, its path becomes more linear, which reduces the length of the watercourse. This, in turn, can lead to increased flow velocity, allowing for more efficient water transport downstream.

In addition, straightening can reduce the risk of flooding in surrounding areas by facilitating quicker drainage and reducing the likelihood of water pooling in meandering sections. This method is often employed in flood control measures where the aim is to manage water levels and prevent overflow into adjacent lands.

However, it is important to consider the ecological impacts of straightening natural watercourses, as it can disrupt local habitats and alter sediment transport dynamics. While this modification can effectively manage flow, careful planning is required to balance hydraulic needs with environmental considerations.

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Shallowening river channels

Creating artificial lakes

Introducing floodplains

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