Which approach describes how storm water management regulation protects against flooding in construction areas?

Which approach describes how storm water management regulation protects against flooding in construction areas?

• A. Identify floodplains and floodways; permit development in the floodplain but prohibit development in the floodway.
• B. Prohibit all development in floodplains.
• C. Encourage development in floodways.
• D. Only regulate stormwater during construction.

Answer: (A)

Zoning based on flood risk zones is how stormwater regulation protects against flooding in construction areas. The floodway is the narrow, highest-risk channel where water must pass; allowing development there would impede flow and raise flood levels, so prohibiting in this zone maintains conveyance. The larger floodplain can experience inundation during floods, but with appropriate design and controls, development can occur there under strict limits. This approach supports controlling runoff and ensuring adequate capacity through permits and stormwater design, such as detention and erosion control. By comparison, prohibiting all development in floodplains is overly restrictive, encouraging development in the floodway is unsafe, and regulating stormwater only during construction fails to address long-term flood risk and ongoing runoff management.

Zoning based on flood risk zones is how stormwater regulation protects against flooding in construction areas. The floodway is the narrow, highest-risk channel where water must pass; allowing development there would impede flow and raise flood levels, so prohibiting in this zone maintains conveyance. The larger floodplain can experience inundation during floods, but with appropriate design and controls, development can occur there under strict limits. This approach supports controlling runoff and ensuring adequate capacity through permits and stormwater design, such as detention and erosion control. By comparison, prohibiting all development in floodplains is overly restrictive, encouraging development in the floodway is unsafe, and regulating stormwater only during construction fails to address long-term flood risk and ongoing runoff management.