1.   Sewers were overflowing because of the rain.

2.   Cars with broken fenders and cracked windshields for lack of spare parts make their way through dusty, cheerless streets where pavements are collapsing and sewers overflow.

3.   Often it enters the water system during or after stormy weather when sewers overflow.

4.   Sewers will still overflow into the canal after heavy rains.

5.   The sewers are overflowing.

6.   The rain had caused open sewers to overflow into muddy roads where children played.