Correct

冲塌

/ chōng tā / 
Strokes

Definition

to cause (a dam) to collapse

Example

As a Verb

(of floods) destroy; (of floodwater, etc) cause to collapse; burst

1
Xiàoshè
校舍
bèi
被
hóngshuǐ
洪水
chōng
冲
tā
塌
le
了
  
。

The schoolhouse was destroyed by the flooding water.

2
Qiáo
桥
bèi
被
hóngshuǐ
洪水
chōng
冲
tā
塌
le
了
  
。

The bridge was swept/washed away by the floods.

3
Chōng
冲
tā
塌
dībà
堤坝

burst dykes and dams