[mewzilla]

It's because the field is below sea level, and might end up 20 feet under water.

Wow. Thanks. I'd thought the entire facility was above sea level. Jeepers. Another reason why it's a last resort, I guess.

[StatenIsland]

"It's because the field is below sea level, and might end up 20 feet under water."

I recall hearing that the entire stadium is about 25 feet ABOVE sea level - one of the reasons they named it as a refuge.