Sea Levels Rise, Californians Seek Dutch Expertise

"Frustratingly little is known about how well protected the Bay Area is from a serious flood even now, according to the report. (Cities on the Bay are expected to prepare for a once-in-a-century flood, but the shores of the Netherlands are armored with flood gates and other equipment strong enough to withstand a once-in-10,000-year onslaught from the North Sea.)

While many of the Bay Area's most vulnerable and valuable areas are protected by federally certified levees, they were all built before planners became aware of how sea level rise would change the whole equation."