The reservoir also has an emergency spillway.

水库还设有应急溢洪。

As for how the spillway damage started, the  issue was uplift forces.

至于溢洪如何开始的，问题在于升力。

All these are things  that the Oroville Spillway either didn't have or weren't done properly.

所有些都奥罗维尔溢洪没有或没有正确完成的事情。

Erosion in its spillways threatened cities that are miles downstream, with possible flash flooding.

溢洪的侵蚀威胁着下游数英里的城市，可能引发山洪暴发。

The Mi-26 helicopters equipped with special spillway devices, VSU-15A were involved.

配备特殊溢洪装置的 Mi-26 直升机 VSU-15A 参与其中。

It has two spillways, passageways where extra water can flow out of the reservoir.

它有两个溢洪，额外的水可以从水库流出的通。

CNN's Paul Vercammen spent Sunday night reporting on how workers planned to reinforce the emergency spillway.

CNN 的保罗·佛卡门 (Paul Vercammen) 在周日晚上报了工人们计划如何加固紧急溢洪。

The service spillway had drains consisting of perforated pipes to relieve the pressure of  water flowing beneath the slabs.

服务溢洪设有由穿孔管组成的排水沟，以减轻板下方流过的水的压力。

Emergency spillways are just that: intended for use only during a rare  event where it's ok to sustain some damage.

紧急溢洪样的：仅在可能造成一些害的罕见事件中使用。

Cracks and joints in a concrete  spillway have an effect on the flow inside.

混凝土溢洪中的裂缝和接缝会影响内部的流量。

And the water in the Oroville spillway is moving a lot faster than this.

奥罗维尔溢洪的水流速度比快得多。

Modern spillway  designs have lots of features that help to avoid what happened at Oroville.

现代溢洪设计有很多特点，有助于避免奥罗维尔发生的事情。

That means engineers have to be able to make conservative estimates of how much  erosion will occur when an emergency spillway engages.

意味着工程师必须能够对紧急溢洪启用时会发生的侵蚀程度做出保守估计。

In the main spillway, erosion has opened a hole almost the size of a football field and it's at least 40 feet deep.

在主溢洪中，侵蚀造成了一个几乎有一个足球场那么大的洞， 而且至少有 40 英尺深。

The repairs and rebuilding of the spillways at  Oroville Dam are a whole other fascinating story.

奥罗维尔大坝溢洪的修复和重建另一个令人着迷的故事。

As for the emergency spillway, the  fundamental cause of the problem was similar: a mischaracterization of the foundation material  during and after design.

至于紧急溢洪，问题的根本原因相似的：设计期间和之后对基础材料的错误描述。

Spillways are often the  most complex and expensive components of a dam, and that is definitely true at Oroville.

溢洪通常大坝最复杂、最昂贵的组成部分，奥罗维尔确实如此。

Acting as a spillway for the Mississippi River, over a million acres of  balmy lowlands make up the Atchafalaya Swamp, the largest wetland in the country.

作为密西西比河的溢洪，超过一百万英亩的温暖低地组成了阿查法拉亚沼泽，该国最大的湿地。

So, all dams need spillways to safely release  excess inflows and maintain the level of the reservoir once it's full.

因此，所有水坝都需要溢洪来安全地释放多余的水流，并在水库满水后保持水位。

The  service spillway has a chute that is 180 feet or 55 meters wide and 3,000 feet long.

服务溢洪有一个宽 180 英尺（即 55 米）、长 3,000 英尺的泄洪。