The system was important to control flooding in the city.

The gate had originally been put here to control flooding, but there was no risk of that this time of year.

Since the 17th century, efforts to control flooding in Mexico City have worked to drain the lake system.

Since then, it has been used to act as a watershed to control annual flooding and generate power.

This is done to control flooding but also to generate electricity.

The southern part, engineered in the last century to control flooding, is now criss-crossed by streams.

Before the river was redirected to its current course to control flooding, it used to flow though the city.

I compare it with a dam used to control flooding.

Yesterday, the corps released a draft report on the environmental impact of its proposed $334 million system to control flooding.

Efforts to control flooding on the Parrett were recorded around the same date.