National Highway Institute (NHI) Safety Inspection of In-Service Bridges Final Assessment Practice Exam 2026 - Free Practice Questions and Study Guide

In the context of channel management, the term degradation specifically refers to the lowering of the channel bed due to erosion. This process occurs when the energy of flowing water exceeds the ability of the channel bed material to resist being eroded, leading to a decrease in the elevation of the stream or riverbed. This erosion can have significant consequences for the surrounding environment, including altering water flow patterns, affecting aquatic habitats, and potentially leading to increased flooding.

The process of degradation is essential to understand in channel management because it can affect water quality, sediment transport, and the stability of nearby structures. Recognizing and addressing degradation is crucial for the maintenance and management of waterways to ensure they function properly and sustain their ecological roles.