Stormwater Management Inspector 2025 – 400 Free Practice Questions to Pass the Exam

Sizing a center weir in check dams is crucial for effective stormwater management, and it primarily needs to accommodate the anticipated peak flows from a specific design storm. In many cases, a 10-year storm is considered an appropriate benchmark because it represents a balance between flood risk and cost-effectiveness, reflecting a moderate frequency of occurrence. Designing for a 10-year storm helps ensure that the check dam can adequately handle a significant but relatively common rainfall event, reducing the likelihood of overflow or failure.

A storm design of this nature is sufficiently robust to mitigate potential flooding while avoiding excessive expenditures that would come with designing for more frequent, smaller storms. It addresses the typical conditions that a check dam is expected to manage, while still providing resilience against larger storm events. This choice helps ensure that the stormwater system fulfills its purpose without incurring unnecessary costs for over-engineering.