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The Resilient Tunnel Project, a 32-feet-long, 16-feet-wide tube that can inflate to up to 35,000 gallons of volume to close off tunnels and block fire, gas leaks, or flooding water from getting in. - 

This week marks a year since Hurricane Sandy hit the East Coast. One of the problems persisting in New York City is keeping our transit systems from flooding. Many New Yorkers can remember walking from Midtown through a darkened city last fall while the Transit Authority was still assessing the damage -- much of it from water. Well, a company has a tech-y solution to this -- an inflatable plug that could be blown up to keep water out of a tunnel when flooding occursDave Cadogan, engineering director at the company ILC Dover, tells Marketplace Tech all about the giant stopper.


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