Certified Storm Water Operator Practice Exam

What is the purpose of the slope in a diversion channel?

1. Adequately provide drainage

2. Prevent sediment deposition

3. Control water accumulation

4. Enhance landscape aesthetics

The correct answer is: Adequately provide drainage

The purpose of the slope in a diversion channel primarily relates to adequately providing drainage. A properly designed slope ensures that water flows efficiently through the channel, reducing the risk of flooding and allowing for proper management of stormwater runoff. The slope helps direct the flow of water away from areas where it could cause erosion or other damage, guiding it toward designated drainage areas or detention basins. This flow management is critical in preventing issues related to stormwater accumulation, ensuring that water moves quickly and effectively, which is essential for maintaining the integrity of the surrounding environment. While the other options may have some relevance to the role of diversion channels, they do not encapsulate the primary role of the slope. For example, while preventing sediment deposition and controlling water accumulation are important aspects of stormwater management, the slope is primarily about facilitating effective drainage. Enhancing landscape aesthetics, while potentially a consideration in design, is not a functional purpose of the slope in a diversion channel. Thus, the focus on drainage through proper sloping is what makes this answer the most relevant in the context of diversion channel purposes.