World’s largest underground reservoir holds water equal to 268 Olympic pools
SMRTR summary
A massive underground flood protection system beneath Tokyo has become a popular tourist attraction. The Metropolitan Area Outer Underground Discharge Channel stretches 3.7 miles, can hold water equivalent to 268 Olympic pools, and has prevented over $1 billion in flood damage since opening in 2006. This engineering marvel helps protect Tokyo's 4.15 million at-risk residents from increasing flood threats due to climate change and urbanization.
SMRTR provides this summary for quick context. The original article belongs to Interesting Engineering.
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