Hurricane Katrina was huge – it broke the levees and flooded the city.

卡特里娜飓风势力很强，摧毁了筑堤，淹没了新奥尔良。

The Mississippi is overtopping a few small levees north of St. Louis and Missouri.

密西西比河的水位已经超过了密苏里州圣路易斯北部的一些小型河堤。

They're actually building the levee up another four to five feet.

实际上他们正在把堤坝再加高4到5英尺。

The river levels are rising and officials want to relive pressure on the city's levees.

河水水位正在上升，官员们希望缓解河水对该市防洪堤的压力。

Building a berm, which is kind of like a levee.

建造护堤，有点像堤坝。

Severe flooding plagued several states today, and threatened to burst through aging levees.

今天几大州遭遇严重洪水，年久的防洪堤有决堤危险。

One of the worst levee failures was in New Orleans, Louisiana in 2005.

其中最严重的一次决堤事故发生在2005年路易斯安那州的新奥尔良。

So artificial levees were constructed along its banks to try and contain it.

因此，人们沿着河岸修建了人工大堤，想要遏制它的泛滥。

The Category 3 storm damaged the New Orleans levee system and flooded the city.

这场3级风暴毁坏了新奥尔良的堤坝系统，淹没了这座城市。

It's a 14.5-mile levee that protects the city of Corcoran, the two state prisons.

这是一条14.5英里长的堤坝，保护着科科伦市和两座州立监狱。