floodwalls
/ˈflʌdˌwɔlz/
noun
- Plural of floodwall; multiple walls built to prevent floodwaters from reaching areas.
- Several floodwalls were breached when the river rose higher than expected.
- The network of floodwalls along the coast was reinforced after the last storm.
- The government funded new floodwalls for the most vulnerable neighborhoods.