NEW YORK (CBSNewYork) – When Superstorm Sandy hit nearly five years ago, it was considered a 500-year storm.

But experts now say a similar storm could strike in the next 20 years, WCBS 880’s Peter Haskell reports. There are growing concerns about the region’s readiness.

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On a boat tour along the city’s coastline Tuesday, Bill Golden talked about the area’s vulnerability to another storm like Sandy.

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“There is no regional protection now anymore than there was five years ago,” he said.

Golden heads a group that’s pushing for hurricane preparedness projects. Planner Bob Yaro wants to see a storm surge barrier from Sandy Hook to the Rockaways.

“It would be open 99.9 percent of the time, series of openings. Closed only when there’s a storm surge,” he said.

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The price tag would be about $15 billion.