Tokyo Flood Prevention
Catalyst · Season 1 · Episode 23
Fifty meters beneath the teeming mega-city of Tokyo is an underworld river system - 6.4km of tunnels, colossal water tanks, massive pillars, giant pumps that remove 200 tons of floodwater every second. It’s an engineering marvel built to protect Tokyo against the increasing threat of flooding.
Episode Details
Air date, runtime, timezone, and episode position.
Season
1
Episode
23
Air Date
01/Jan/2014
Air Time
20:30
Runtime
30 min
Overview
Episode summary.
Fifty meters beneath the teeming mega-city of Tokyo is an underworld river system - 6.4km of tunnels, colossal water tanks, massive pillars, giant pumps that remove 200 tons of floodwater every second. It’s an engineering marvel built to protect Tokyo against the increasing threat of flooding.
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