They were built, like the levee system, over the last century in an effort to open up navigation on the river.

Our levee systems are still in a very weak condition.

But even then, the levee system, which was supposed to withstand a Category 3, failed.

The city sits below sea level, and it is surrounded by a high wall, the levee system.

The alternative, he said, "is to build the largest levee system in the world" around the entire southern part of the state.

The city built a levee system that is still maintained today.

That year, construction of the current levee system was proposed.

Come morning you head east along the river and break up the force guarding the prisoners building this levee system.

The current dam and levee system was completed in 1954.

The levee system can only take care of 1.25 million.