S.Korea firm says Laos dam damage found day before collapse
SEOUL: The South Korean partner in a Laos hydropower dam said Wednesday it discovered the upper part of the structure had washed away 24 hours before it collapsed, engulfing villages and leaving hundreds missing.
The dam collapse sent some five billion cubic metres of water — more than two million Oympic swimming pools — surging through villages
SK Engineering & Construction, a South Korean builder that is one of the partners in the project, said it discovered the damage to an auxiliary dam at around 9pm Sunday local time.
Bangkok Post: news
https://headlines.yahoo.co.jp/hl?a=20180725-00000020-jij_afp-int