What is "floodway"

n. An engineered path to channel floodwaters away from areas to be protected

Floodway may refer to:

• Flood bypass
• Flood control channel
• Floodway (road), a flood plain crossing for a road
• The community of Floodway, Arkansas

A floodway is a flood plain crossing for a road, built at or close to the natural ground level.

They are designed to be submerged under water, but withstand such conditions. Typically floodways are used when the flood frequency or time span is minimal, traffic volumes are low, and the cost of a bridge is uneconomic – in most cases, in rural areas. Great Northern Highway, Western Australia